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PATCH [1/4] C-SKY port: ELF and BFD support
- From: Sandra Loosemore <sandra at codesourcery dot com>
- To: <binutils at sourceware dot org>
- Cc: "nickc at redhat dot com" <nickc at redhat dot com>, Lifang Xia <lifang_xia at c-sky dot com>, Yunhai Shang <yunhai_shang at c-sky dot com>
- Date: Wed, 23 May 2018 17:59:16 -0600
- Subject: PATCH [1/4] C-SKY port: ELF and BFD support
- References: <015d7738-5a15-d9b8-7c3d-cc21a3d412de@codesourcery.com>
Here's part 1 of the C-SKY port, covering the ELF and BFD support.
One technical note on this patch part: the C-SKY port historically used
the same value for EM_CSKY that was originally assigned to EM_MCORE
(39), which caused various conflicts unless EM_MCORE was disabled.
We've gotten a new official number assigned for EM_CSKY but continue to
recognize objects using EM_MCORE for backward compatibility. (Some
other ports also have similar code to deal with old unofficial EM_xxx
numbers.)
-Sandra
commit 0c943f71830bcfbce09db2deca35984ff23588ba
Author: Sandra Loosemore <sandra@codesourcery.com>
Date: Mon May 21 13:40:20 2018 -0700
C-SKY port: ELF and BFD support
2018-05-21 Lifang Xia <lifang_xia@c-sky.com>
Yunhai Shang <yunhai_shang@c-sky.com>
Wenmeng Zhang <wenmeng_zhang@c-sky.com>
Wei Cheng <wei_cheng@c-sky.com>
Linjie Yu <linjie_yu@c-sky.com>
Sandra Loosemore <sandra@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>
bfd/
* Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add C-SKY.
(BFD32_BACKENDS, BFD_BACKENDS_CFILES): Likewise.
* Makefile.in: Regenerated.
* archures.c (enum bfd_architecture): Add bfd_arch_csky and
related bfd_mach defines.
(bfd_csky_arch): Declare.
(bfd_archures_list): Add C-SKY.
* bfd-in.h (elf32_csky_build_stubs): Declare.
(elf32_csky_size_stubs): Declare.
(elf32_csky_next_input_section: Declare.
(elf32_csky_setup_section_lists): Declare.
* bfd-in2.h: Regenerated.
* config.bfd: Add C-SKY.
* configure.ac: Likewise.
* configure: Regenerated.
* cpu-csky.c: New file.
* elf-bfd.h (enum elf_target_id): Add C-SKY.
* elf32-csky.c: New file.
* libbfd.h: Regenerated.
* reloc.c: Add C-SKY relocations.
* targets.c (csky_elf32_be_vec, csky_elf32_le_vec): Declare.
(_bfd_target_vector): Add C-SKY target vector entries.
binutils/
* readelf.c: Include elf/csky.h.
(guess_is_rela): Handle EM_CSKY.
(dump_relocations): Likewise.
(get_machine_name): Likewise.
(is_32bit_abs_reloc): Likewise.
include/
* elf/common.h (EM_CSKY, EM_CSKY_OLD): Define.
* elf/csky.h: New file.
diff --git a/bfd/Makefile.am b/bfd/Makefile.am
index 8374bbd..ea9ff15 100644
--- a/bfd/Makefile.am
+++ b/bfd/Makefile.am
@@ -99,6 +99,7 @@ ALL_MACHINES = \
cpu-cr16c.lo \
cpu-cris.lo \
cpu-crx.lo \
+ cpu-csky.lo \
cpu-d10v.lo \
cpu-d30v.lo \
cpu-dlx.lo \
@@ -184,6 +185,7 @@ ALL_MACHINES_CFILES = \
cpu-cr16c.c \
cpu-cris.c \
cpu-crx.c \
+ cpu-csky.c \
cpu-d10v.c \
cpu-d30v.c \
cpu-dlx.c \
@@ -303,6 +305,7 @@ BFD32_BACKENDS = \
elf32-cr16c.lo \
elf32-cris.lo \
elf32-crx.lo \
+ elf32-csky.lo \
elf32-d10v.lo \
elf32-d30v.lo \
elf32-dlx.lo \
@@ -440,6 +443,7 @@ BFD32_BACKENDS_CFILES = \
elf32-cr16c.c \
elf32-cris.c \
elf32-crx.c \
+ elf32-csky.c \
elf32-d10v.c \
elf32-d30v.c \
elf32-dlx.c \
diff --git a/bfd/Makefile.in b/bfd/Makefile.in
index 88b6b8e..eb84065 100644
--- a/bfd/Makefile.in
+++ b/bfd/Makefile.in
@@ -432,6 +432,7 @@ ALL_MACHINES = \
cpu-cr16c.lo \
cpu-cris.lo \
cpu-crx.lo \
+ cpu-csky.lo \
cpu-d10v.lo \
cpu-d30v.lo \
cpu-dlx.lo \
@@ -517,6 +518,7 @@ ALL_MACHINES_CFILES = \
cpu-cr16c.c \
cpu-cris.c \
cpu-crx.c \
+ cpu-csky.c \
cpu-d10v.c \
cpu-d30v.c \
cpu-dlx.c \
@@ -637,6 +639,7 @@ BFD32_BACKENDS = \
elf32-cr16c.lo \
elf32-cris.lo \
elf32-crx.lo \
+ elf32-csky.lo \
elf32-d10v.lo \
elf32-d30v.lo \
elf32-dlx.lo \
@@ -774,6 +777,7 @@ BFD32_BACKENDS_CFILES = \
elf32-cr16c.c \
elf32-cris.c \
elf32-crx.c \
+ elf32-csky.c \
elf32-d10v.c \
elf32-d30v.c \
elf32-dlx.c \
@@ -1231,6 +1235,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-cr16c.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-cris.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-crx.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-csky.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-d10v.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-d30v.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-dlx.Plo@am__quote@
@@ -1328,6 +1333,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-cr16c.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-cris.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-crx.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-csky.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-d10v.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-d30v.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-dlx.Plo@am__quote@
diff --git a/bfd/archures.c b/bfd/archures.c
index 3af7ddd..5d9eee8 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -516,6 +516,15 @@ DESCRIPTION
. bfd_arch_nfp, {* Netronome Flow Processor *}
.#define bfd_mach_nfp3200 0x3200
.#define bfd_mach_nfp6000 0x6000
+. bfd_arch_csky, {* C-SKY. *}
+.#define bfd_mach_ck_unknown 0
+.#define bfd_mach_ck510 1
+.#define bfd_mach_ck610 2
+.#define bfd_mach_ck801 3
+.#define bfd_mach_ck802 4
+.#define bfd_mach_ck803 5
+.#define bfd_mach_ck807 6
+.#define bfd_mach_ck810 7
. bfd_arch_last
. };
*/
@@ -570,6 +579,7 @@ extern const bfd_arch_info_type bfd_cr16_arch;
extern const bfd_arch_info_type bfd_cr16c_arch;
extern const bfd_arch_info_type bfd_cris_arch;
extern const bfd_arch_info_type bfd_crx_arch;
+extern const bfd_arch_info_type bfd_csky_arch;
extern const bfd_arch_info_type bfd_d10v_arch;
extern const bfd_arch_info_type bfd_d30v_arch;
extern const bfd_arch_info_type bfd_dlx_arch;
@@ -660,6 +670,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
&bfd_cr16c_arch,
&bfd_cris_arch,
&bfd_crx_arch,
+ &bfd_csky_arch,
&bfd_d10v_arch,
&bfd_d30v_arch,
&bfd_dlx_arch,
diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index 481587e..3d8c62b 100644
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -1062,3 +1062,15 @@ extern bfd_boolean v850_elf_set_note
/* MIPS ABI flags data access. For the disassembler. */
struct elf_internal_abiflags_v0;
extern struct elf_internal_abiflags_v0 *bfd_mips_elf_get_abiflags (bfd *);
+
+/* C-SKY functions. */
+extern bfd_boolean elf32_csky_build_stubs
+ (struct bfd_link_info *);
+extern bfd_boolean elf32_csky_size_stubs
+ (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
+ struct bfd_section *(*) (const char*, struct bfd_section*),
+ void (*) (void));
+extern void elf32_csky_next_input_section
+ (struct bfd_link_info *, struct bfd_section *);
+extern int elf32_csky_setup_section_lists
+ (bfd *, struct bfd_link_info *);
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index c64eee1..988a486 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1069,6 +1069,18 @@ extern bfd_boolean v850_elf_set_note
/* MIPS ABI flags data access. For the disassembler. */
struct elf_internal_abiflags_v0;
extern struct elf_internal_abiflags_v0 *bfd_mips_elf_get_abiflags (bfd *);
+
+/* C-SKY functions. */
+extern bfd_boolean elf32_csky_build_stubs
+ (struct bfd_link_info *);
+extern bfd_boolean elf32_csky_size_stubs
+ (bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
+ struct bfd_section *(*) (const char*, struct bfd_section*),
+ void (*) (void));
+extern void elf32_csky_next_input_section
+ (struct bfd_link_info *, struct bfd_section *);
+extern int elf32_csky_setup_section_lists
+ (bfd *, struct bfd_link_info *);
/* Extracted from init.c. */
void bfd_init (void);
@@ -2386,6 +2398,15 @@ enum bfd_architecture
bfd_arch_nfp, /* Netronome Flow Processor */
#define bfd_mach_nfp3200 0x3200
#define bfd_mach_nfp6000 0x6000
+ bfd_arch_csky, /* C-SKY. */
+#define bfd_mach_ck_unknown 0
+#define bfd_mach_ck510 1
+#define bfd_mach_ck610 2
+#define bfd_mach_ck801 3
+#define bfd_mach_ck802 4
+#define bfd_mach_ck803 5
+#define bfd_mach_ck807 6
+#define bfd_mach_ck810 7
bfd_arch_last
};
@@ -6549,6 +6570,73 @@ assembler and not (currently) written to any object files. */
BFD_RELOC_WASM32_CODE_POINTER,
BFD_RELOC_WASM32_INDEX,
BFD_RELOC_WASM32_PLT_SIG,
+
+/* C-SKY relocations. */
+ BFD_RELOC_CKCORE_NONE,
+ BFD_RELOC_CKCORE_ADDR32,
+ BFD_RELOC_CKCORE_PCREL_IMM8BY4,
+ BFD_RELOC_CKCORE_PCREL_IMM11BY2,
+ BFD_RELOC_CKCORE_PCREL_IMM4BY2,
+ BFD_RELOC_CKCORE_PCREL32,
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2,
+ BFD_RELOC_CKCORE_GNU_VTINHERIT,
+ BFD_RELOC_CKCORE_GNU_VTENTRY,
+ BFD_RELOC_CKCORE_RELATIVE,
+ BFD_RELOC_CKCORE_COPY,
+ BFD_RELOC_CKCORE_GLOB_DAT,
+ BFD_RELOC_CKCORE_JUMP_SLOT,
+ BFD_RELOC_CKCORE_GOTOFF,
+ BFD_RELOC_CKCORE_GOTPC,
+ BFD_RELOC_CKCORE_GOT32,
+ BFD_RELOC_CKCORE_PLT32,
+ BFD_RELOC_CKCORE_ADDRGOT,
+ BFD_RELOC_CKCORE_ADDRPLT,
+ BFD_RELOC_CKCORE_PCREL_IMM26BY2,
+ BFD_RELOC_CKCORE_PCREL_IMM16BY2,
+ BFD_RELOC_CKCORE_PCREL_IMM16BY4,
+ BFD_RELOC_CKCORE_PCREL_IMM10BY2,
+ BFD_RELOC_CKCORE_PCREL_IMM10BY4,
+ BFD_RELOC_CKCORE_ADDR_HI16,
+ BFD_RELOC_CKCORE_ADDR_LO16,
+ BFD_RELOC_CKCORE_GOTPC_HI16,
+ BFD_RELOC_CKCORE_GOTPC_LO16,
+ BFD_RELOC_CKCORE_GOTOFF_HI16,
+ BFD_RELOC_CKCORE_GOTOFF_LO16,
+ BFD_RELOC_CKCORE_GOT12,
+ BFD_RELOC_CKCORE_GOT_HI16,
+ BFD_RELOC_CKCORE_GOT_LO16,
+ BFD_RELOC_CKCORE_PLT12,
+ BFD_RELOC_CKCORE_PLT_HI16,
+ BFD_RELOC_CKCORE_PLT_LO16,
+ BFD_RELOC_CKCORE_ADDRGOT_HI16,
+ BFD_RELOC_CKCORE_ADDRGOT_LO16,
+ BFD_RELOC_CKCORE_ADDRPLT_HI16,
+ BFD_RELOC_CKCORE_ADDRPLT_LO16,
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2,
+ BFD_RELOC_CKCORE_TOFFSET_LO16,
+ BFD_RELOC_CKCORE_DOFFSET_LO16,
+ BFD_RELOC_CKCORE_PCREL_IMM18BY2,
+ BFD_RELOC_CKCORE_DOFFSET_IMM18,
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY2,
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY4,
+ BFD_RELOC_CKCORE_GOTOFF_IMM18,
+ BFD_RELOC_CKCORE_GOT_IMM18BY4,
+ BFD_RELOC_CKCORE_PLT_IMM18BY4,
+ BFD_RELOC_CKCORE_PCREL_IMM7BY4,
+ BFD_RELOC_CKCORE_TLS_LE32,
+ BFD_RELOC_CKCORE_TLS_IE32,
+ BFD_RELOC_CKCORE_TLS_GD32,
+ BFD_RELOC_CKCORE_TLS_LDM32,
+ BFD_RELOC_CKCORE_TLS_LDO32,
+ BFD_RELOC_CKCORE_TLS_DTPMOD32,
+ BFD_RELOC_CKCORE_TLS_DTPOFF32,
+ BFD_RELOC_CKCORE_TLS_TPOFF32,
+ BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4,
+ BFD_RELOC_CKCORE_NOJSRI,
+ BFD_RELOC_CKCORE_CALLGRAPH,
+ BFD_RELOC_CKCORE_IRELATIVE,
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4,
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4,
BFD_RELOC_UNUSED };
typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;
diff --git a/bfd/config.bfd b/bfd/config.bfd
index 0db8ed4..5e09577 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -170,6 +170,7 @@ c54x*) targ_archs=bfd_tic54x_arch ;;
cr16*) targ_archs=bfd_cr16_arch ;;
crisv32) targ_archs=bfd_cris_arch ;;
crx*) targ_archs=bfd_crx_arch ;;
+csky*) targ_archs=bfd_csky_arch ;;
dlx*) targ_archs=bfd_dlx_arch ;;
fido*) targ_archs=bfd_m68k_arch ;;
hppa*) targ_archs=bfd_hppa_arch ;;
@@ -461,6 +462,11 @@ case "${targ}" in
targ_underscore=yes
;;
+ csky-*-elf* | csky-*-linux* )
+ targ_defvec=csky_elf32_be_vec
+ targ_selvecs="csky_elf32_be_vec csky_elf32_le_vec"
+ ;;
+
d10v-*-*)
targ_defvec=d10v_elf32_vec
;;
diff --git a/bfd/configure b/bfd/configure
index 2f3dbe7..07aafda 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -14406,6 +14406,8 @@ do
cris_elf32_vec) tb="$tb elf32-cris.lo elf32.lo $elf" ;;
cris_elf32_us_vec) tb="$tb elf32-cris.lo elf32.lo $elf" ;;
crx_elf32_vec) tb="$tb elf32-crx.lo elf32.lo $elf" ;;
+ csky_elf32_be_vec) tb="$tb elf32-csky.lo elf32.lo $elf" ;;
+ csky_elf32_le_vec) tb="$tb elf32-csky.lo elf32.lo $elf" ;;
d10v_elf32_vec) tb="$tb elf32-d10v.lo elf32.lo $elf" ;;
d30v_elf32_vec) tb="$tb elf32-d30v.lo elf32.lo $elf" ;;
dlx_elf32_be_vec) tb="$tb elf32-dlx.lo elf32.lo $elf" ;;
diff --git a/bfd/configure.ac b/bfd/configure.ac
index b320828..e90f482 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -461,6 +461,8 @@ do
cris_elf32_vec) tb="$tb elf32-cris.lo elf32.lo $elf" ;;
cris_elf32_us_vec) tb="$tb elf32-cris.lo elf32.lo $elf" ;;
crx_elf32_vec) tb="$tb elf32-crx.lo elf32.lo $elf" ;;
+ csky_elf32_be_vec) tb="$tb elf32-csky.lo elf32.lo $elf" ;;
+ csky_elf32_le_vec) tb="$tb elf32-csky.lo elf32.lo $elf" ;;
d10v_elf32_vec) tb="$tb elf32-d10v.lo elf32.lo $elf" ;;
d30v_elf32_vec) tb="$tb elf32-d30v.lo elf32.lo $elf" ;;
dlx_elf32_be_vec) tb="$tb elf32-dlx.lo elf32.lo $elf" ;;
diff --git a/bfd/cpu-csky.c b/bfd/cpu-csky.c
new file mode 100644
index 0000000..4b9ff63
--- /dev/null
+++ b/bfd/cpu-csky.c
@@ -0,0 +1,60 @@
+/* BFD support for C-SKY processors.
+ Copyright (C) 1994-2018 Free Software Foundation, Inc.
+ Contributed by C-SKY Microsystems and Mentor Graphics.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+#define N(NUMBER, PRINT, ISDEFAULT, NEXT) \
+{ \
+ 32, /* 32 bits in a word */ \
+ 32, /* 32 bits in an address */ \
+ 8, /* 8 bits in a byte */ \
+ bfd_arch_csky, /* Architecture */ \
+ NUMBER, /* Machine number */ \
+ "csky", /* Architecture name */ \
+ PRINT, /* Printable name */ \
+ 3, /* Section align power */ \
+ ISDEFAULT, /* Is this the default architecture ? */ \
+ bfd_default_compatible, /* Architecture comparison function */ \
+ bfd_default_scan, /* String to architecture conversion */ \
+ bfd_arch_default_fill, \
+ NEXT /* Next in list */ \
+}
+
+static const bfd_arch_info_type arch_info_struct[] =
+{
+ /* ABI v1 processors. */
+ N (bfd_mach_ck510, "csky:ck510", FALSE, & arch_info_struct[1]),
+ N (bfd_mach_ck610, "csky:ck610", FALSE, & arch_info_struct[2]),
+
+ /* ABI v2 processors. */
+ N (bfd_mach_ck801, "csky:ck801", FALSE, & arch_info_struct[3]),
+ N (bfd_mach_ck802, "csky:ck802", FALSE, & arch_info_struct[4]),
+ N (bfd_mach_ck803, "csky:ck803", FALSE, & arch_info_struct[5]),
+ N (bfd_mach_ck807, "csky:ck807", FALSE, & arch_info_struct[6]),
+ N (bfd_mach_ck810, "csky:ck810", FALSE, & arch_info_struct[7]),
+ N (bfd_mach_ck_unknown, "csky:any", FALSE, NULL)
+};
+
+const bfd_arch_info_type bfd_csky_arch =
+ N (0, "csky", TRUE, & arch_info_struct[0]);
+
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 7b74690..6a1feb6 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -489,6 +489,7 @@ enum elf_target_id
AVR_ELF_DATA,
BFIN_ELF_DATA,
CRIS_ELF_DATA,
+ CSKY_ELF_DATA,
FRV_ELF_DATA,
HPPA32_ELF_DATA,
HPPA64_ELF_DATA,
diff --git a/bfd/elf32-csky.c b/bfd/elf32-csky.c
new file mode 100644
index 0000000..04fbd47
--- /dev/null
+++ b/bfd/elf32-csky.c
@@ -0,0 +1,4999 @@
+/* 32-bit ELF support for C-SKY.
+ Copyright (C) 1998-2018 Free Software Foundation, Inc.
+ Contributed by C-SKY Microsystems and Mentor Graphics.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "bfdlink.h"
+#include "libbfd.h"
+#include "elf-bfd.h"
+#include "elf/csky.h"
+#include "opcode/csky.h"
+#include <assert.h>
+#include "libiberty.h"
+
+/* Data structures used for merging different arch variants.
+ V1 (510/610) and V2 (8xx) processors are incompatible, but
+ we can merge wthin each family. */
+
+enum merge_class
+{
+ CSKY_V1,
+ CSKY_V2
+};
+
+typedef struct csky_arch_for_merge
+{
+ const char *name;
+ const unsigned long arch_eflag;
+ /* The files can merge only if they are in same class. */
+ enum merge_class class;
+ /* When input files have different levels,
+ the target sets arch_eflag to the largest level file's arch_eflag. */
+ unsigned int class_level;
+ /* Control whether to print warning when merging with different arch. */
+ unsigned int do_warning;
+} csky_arch_for_merge;
+
+static struct csky_arch_for_merge csky_archs[] =
+{
+ /* 510 and 610 merge to 610 without warning. */
+ { "510", CSKY_ARCH_510, CSKY_V1, 0, 0},
+ { "610", CSKY_ARCH_610, CSKY_V1, 1, 0},
+ /* 801, 802, 803, 807, 810 merge to largest one. */
+ { "801", CSKY_ARCH_801, CSKY_V2, 0, 1},
+ { "802", CSKY_ARCH_802, CSKY_V2, 1, 1},
+ { "803", CSKY_ARCH_803, CSKY_V2, 2, 1},
+ { "807", CSKY_ARCH_807, CSKY_V2, 3, 1},
+ { "810", CSKY_ARCH_810, CSKY_V2, 4, 1},
+ { NULL, 0, 0, 0, 0}
+};
+
+/* Return the ARCH bits out of ABFD. */
+#define bfd_csky_arch(abfd) \
+ (elf_elfheader (abfd)->e_flags & CSKY_ARCH_MASK)
+
+/* Return the ABI bits out of ABFD. */
+#define bfd_csky_abi(abfd) \
+ (elf_elfheader (abfd)->e_flags & CSKY_ABI_MASK)
+
+
+/* The index of a howto-item is implicitly equal to
+ the corresponding Relocation Type Encoding. */
+static reloc_howto_type csky_elf_howto_table[] =
+{
+ /* 0 */
+ HOWTO (R_CKCORE_NONE, /* type */
+ 0, /* rightshift */
+ 0, /* size */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_NONE", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 1. */
+ HOWTO (R_CKCORE_ADDR32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_ADDR32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 2: Only for csky v1. */
+ HOWTO (R_CKCORE_PCREL_IMM8BY4, /* type */
+ 2, /* rightshift */
+ 1, /* size */
+ 8, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_IMM8BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0xff, /* src_mask */
+ 0xff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 3: Only for csky v1. */
+ HOWTO (R_CKCORE_PCREL_IMM11BY2, /* type */
+ 1, /* rightshift */
+ 1, /* size */
+ 11, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_IMM11BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x7ff, /* src_mask */
+ 0x7ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 4: DELETED. */
+ HOWTO (R_CKCORE_PCREL_IMM4BY2,0,0,0,0,0,0,0,"R_CKCORE_PCREL_IMM4BY2",0,0,0,0),
+
+ /* 5. */
+ HOWTO (R_CKCORE_PCREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 6: Only for csky v1. */
+ HOWTO (R_CKCORE_PCREL_JSR_IMM11BY2, /* type */
+ 1, /* rightshift */
+ 1, /* size */
+ 11, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_JSR_IMM11BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x7ff, /* src_mask */
+ 0x7ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 7: GNU extension to record C++ vtable member usage. */
+ HOWTO (R_CKCORE_GNU_VTENTRY, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_elf_rel_vtable_reloc_fn, /* special_function */
+ "R_CKCORE_GNU_VTENTRY", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 8: GNU extension to record C++ vtable hierarchy. */
+ HOWTO (R_CKCORE_GNU_VTINHERIT, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_GNU_VTINHERIT", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x0, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 9. */
+ HOWTO (R_CKCORE_RELATIVE, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_RELATIVE", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 10: None. */
+ /* FIXME: It is a bug that copy relocations are not implemented. */
+ HOWTO (R_CKCORE_COPY,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 11: None. */
+ HOWTO (R_CKCORE_GLOB_DAT,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 12: None. */
+ HOWTO (R_CKCORE_JUMP_SLOT,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 13. */
+ HOWTO (R_CKCORE_GOTOFF, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTOFF", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffffl, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 14. */
+ HOWTO (R_CKCORE_GOTPC, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTPC", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 15. */
+ HOWTO (R_CKCORE_GOT32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOT32", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 16. */
+ HOWTO (R_CKCORE_PLT32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PLT32", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 17: None. */
+ HOWTO (R_CKCORE_ADDRGOT,0,0,0,0,0,0,0,"R_CKCORE_ADDRGOT",0,0,0,0),
+
+ /* 18: None. */
+ HOWTO (R_CKCORE_ADDRPLT,0,0,0,0,0,0,0,"R_CKCORE_ADDRPLT",0,0,0,0),
+
+ /* 19: Only for csky v2. */
+ HOWTO (R_CKCORE_PCREL_IMM26BY2, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 26, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_IMM26BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 20: Only for csky v2. */
+ HOWTO (R_CKCORE_PCREL_IMM16BY2, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_IMM16BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 21: Only for csky v2. */
+ HOWTO (R_CKCORE_PCREL_IMM16BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_IMM16BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff0000, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 22: Only for csky v2. */
+ HOWTO (R_CKCORE_PCREL_IMM10BY2, /* type */
+ 1, /* rightshift */
+ 1, /* size */
+ 10, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_IMM10BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 23: Only for csky v2. */
+ HOWTO (R_CKCORE_PCREL_IMM10BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 10, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_IMM10BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 24: Only for csky v2. */
+ HOWTO (R_CKCORE_ADDR_HI16, /* type */
+ 16, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_ADDR_HI16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 25. */
+ HOWTO (R_CKCORE_ADDR_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_ADDR_LO16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 26. */
+ HOWTO (R_CKCORE_GOTPC_HI16, /* type */
+ 16, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTPC_HI16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 27. */
+ HOWTO (R_CKCORE_GOTPC_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTPC_LO16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 28. */
+ HOWTO (R_CKCORE_GOTOFF_HI16, /* type */
+ 16, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTOFF_HI16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 29. */
+ HOWTO (R_CKCORE_GOTOFF_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTOFF_LO16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 30. */
+ HOWTO (R_CKCORE_GOT12, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 12, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOT12", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xfff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 31. */
+ HOWTO (R_CKCORE_GOT_HI16, /* type */
+ 16, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOT_HI16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 32. */
+ HOWTO (R_CKCORE_GOT_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOT_LO16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 33. */
+ HOWTO (R_CKCORE_PLT12, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 12, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PLT12", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xfff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 34. */
+ HOWTO (R_CKCORE_PLT_HI16, /* type */
+ 16, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PLT_HI16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 35. */
+ HOWTO (R_CKCORE_PLT_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PLT_LO16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 36: None. */
+ HOWTO (R_CKCORE_ADDRGOT_HI16,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 37: None. */
+ HOWTO (R_CKCORE_ADDRGOT_LO16,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 38: None. */
+ HOWTO (R_CKCORE_ADDRPLT_HI16,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 39: None. */
+ HOWTO (R_CKCORE_ADDRPLT_LO16,0,0,0,0,0,0,0,"R_CKCORE_",0,0,0,0),
+
+ /* 40. */
+ HOWTO (R_CKCORE_PCREL_JSR_IMM26BY2, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 26, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_JSR_IMM26BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 41. */
+ HOWTO (R_CKCORE_TOFFSET_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_TOFFSET_LO16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 42. */
+ HOWTO (R_CKCORE_DOFFSET_LO16, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_DOFFSET_LO16", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 43. */
+ HOWTO (R_CKCORE_PCREL_IMM18BY2, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_IMM18BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 44. */
+ HOWTO (R_CKCORE_DOFFSET_IMM18, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_DOFFSET_IMM18", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 45. */
+ HOWTO (R_CKCORE_DOFFSET_IMM18BY2, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_DOFFSET_IMM18BY2", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 46. */
+ HOWTO (R_CKCORE_DOFFSET_IMM18BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_unsigned, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_DOFFSET_IMM18BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 47. */
+ HOWTO (R_CKCORE_GOTOFF_IMM18, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOTOFF_IMM18", /* name */
+ TRUE, /* partial_inplace */
+ 0xfffc, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 48. */
+ HOWTO (R_CKCORE_GOT_IMM18BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_GOT_IMM18BY4", /* name */
+ TRUE, /* partial_inplace */
+ 0xfffc, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 49. */
+ HOWTO (R_CKCORE_PLT_IMM18BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 18, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PLT_IMM18BY4", /* name */
+ TRUE, /* partial_inplace */
+ 0xfffc, /* src_mask */
+ 0x3ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 50: for lrw16. */
+ HOWTO (R_CKCORE_PCREL_IMM7BY4, /* type */
+ 2, /* rightshift */
+ 1, /* size */
+ 7, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_IMM7BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0xec1f, /* src_mask */
+ 0x31f, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 51: for static nptl. */
+ HOWTO (R_CKCORE_TLS_LE32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_TLS_LE32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 52: for static nptl. */
+ HOWTO (R_CKCORE_TLS_IE32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_TLS_IE32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 53: for pic nptl. */
+ HOWTO (R_CKCORE_TLS_GD32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_TLS_GD32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 54: for pic nptl. */
+ HOWTO (R_CKCORE_TLS_LDM32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_TLS_LDM32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 55: for pic nptl. */
+ HOWTO (R_CKCORE_TLS_LDO32, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_TLS_LDO32", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 56: for linker. */
+ HOWTO (R_CKCORE_TLS_DTPMOD32,0,0,0,0,0,0,0,"R_CKCORE_TLS_DTPMOD32",0,0,0,0),
+
+ /* 57: for linker. */
+ HOWTO (R_CKCORE_TLS_DTPOFF32,0,0,0,0,0,0,0,"R_CKCORE_TLS_DTPOFF32",0,0,0,0),
+
+ /* 58: for linker. */
+ HOWTO (R_CKCORE_TLS_TPOFF32,0,0,0,0,0,0,0,"R_CKCORE_TLS_TPOFF32",0,0,0,0),
+
+ /* 59: for ck807f. */
+ HOWTO (R_CKCORE_PCREL_FLRW_IMM8BY4, /* type */
+ 2, /* rightshift */
+ 2, /* size */
+ 8, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_PCREL_FLRW_IMM8BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0xfe1fff0f, /* src_mask */
+ 0x1e000f0, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 60: for 810 not to generate jsri. */
+ HOWTO (R_CKCORE_NOJSRI, /* type */
+ 0, /* rightshift */
+ 2, /* size */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_NOJSRI", /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+
+ /* 61: for callgraph. */
+ HOWTO (R_CKCORE_CALLGRAPH, /* type */
+ 0, /* rightshift */
+ 0, /* size */
+ 0, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ NULL, /* special_function */
+ "R_CKCORE_CALLGRAPH", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0x0, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* 62: IRELATIVE*/
+ HOWTO (R_CKCORE_IRELATIVE,0,0,0,0,0,0,0,"R_CKCORE_IRELATIVE",0,0,0,0),
+
+ /* 63: for bloop instruction */
+ HOWTO (R_CKCORE_PCREL_BLOOP_IMM4BY4, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 4, /* bitsize */
+ 1, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_BLOOP_IMM4BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xf, /* dst_mask */
+ TRUE), /* pcrel_offset */
+ /* 64: for bloop instruction */
+ HOWTO (R_CKCORE_PCREL_BLOOP_IMM12BY4, /* type */
+ 1, /* rightshift */
+ 2, /* size */
+ 12, /* bitsize */
+ 1, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_CKCORE_PCREL_BLOOP_IMM12BY4", /* name */
+ FALSE, /* partial_inplace */
+ 0x0, /* src_mask */
+ 0xfff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+
+};
+
+
+/* Whether GOT overflow checking is needed. */
+static int check_got_overflow = 0;
+
+/* Whether the target 32 bits is forced so that the high
+ 16 bits is at the low address. */
+static int need_reverse_bits;
+
+/* Used for relaxation. See csky_relocate_contents. */
+static bfd_vma read_content_substitute;
+
+/* NOTICE!
+ The way the following two look-up functions work demands
+ that BFD_RELOC_CKCORE_xxx are defined contiguously. */
+static reloc_howto_type *
+csky_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ int csky_code = code - BFD_RELOC_CKCORE_NONE;
+
+ if (csky_code < 0 || csky_code >= R_CKCORE_MAX)
+ {
+ switch (code)
+ {
+ case BFD_RELOC_NONE:
+ csky_code = R_CKCORE_NONE;
+ break;
+ case BFD_RELOC_32:
+ csky_code = R_CKCORE_ADDR32;
+ break;
+ case BFD_RELOC_32_PCREL:
+ csky_code = R_CKCORE_PCREL32;
+ break;
+ case BFD_RELOC_VTABLE_INHERIT:
+ csky_code = R_CKCORE_GNU_VTINHERIT;
+ break;
+ case BFD_RELOC_VTABLE_ENTRY:
+ csky_code = R_CKCORE_GNU_VTENTRY;
+ break;
+ case BFD_RELOC_RVA:
+ csky_code = R_CKCORE_RELATIVE;
+ break;
+ default:
+ return (reloc_howto_type *)NULL;
+ }
+ }
+ /* Note: when adding csky bfd reloc types in bfd-in2.h
+ and csky elf reloc types in elf/csky.h,
+ the order of the two reloc type tables should be consistent. */
+ return &csky_elf_howto_table[csky_code];
+}
+
+static reloc_howto_type *
+csky_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+ for (i = 0; i < R_CKCORE_MAX; i++)
+ if (strcasecmp (csky_elf_howto_table[i].name, r_name) == 0)
+ return &csky_elf_howto_table[i];
+ return NULL;
+}
+
+static reloc_howto_type *
+elf32_csky_howto_from_type (unsigned int r_type)
+{
+ if (r_type < R_CKCORE_MAX)
+ return &csky_elf_howto_table[r_type];
+ else
+ return NULL;
+}
+
+static bfd_boolean
+csky_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
+{
+ unsigned int r_type;
+ r_type = ELF32_R_TYPE (dst->r_info);
+ cache_ptr->howto = elf32_csky_howto_from_type (r_type);
+ if (cache_ptr->howto == NULL)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("error: %pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/* The Global Offset Table max size. */
+#define GOT_MAX_SIZE 0xFFFF8
+
+/* The name of the dynamic interpreter. This is put in the .interp
+ section. */
+#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
+
+/* The size in bytes of an entry in the procedure linkage table. */
+#define PLT_ENTRY_SIZE 12
+#define PLT_ENTRY_SIZE_P 16
+
+/* The first entry in a procedure linkage table looks like
+ this. It is set up so that any shared library function that is
+ called before the relocation has been set up calls the dynamic
+ linker first. */
+static const bfd_vma csky_elf_plt_entry_v2[PLT_ENTRY_SIZE / 4] =
+{
+ 0xd99c2002, /* ldw r12, (gb, 8) */
+ 0xea0d0000, /* movi r13,offset */
+ 0xe8cc0000 /* jmp r12 */
+};
+
+static const bfd_vma csky_elf_plt_entry_v1[PLT_ENTRY_SIZE / 2 ] =
+ {
+ 0x25f0, /* subi r0, 32 */
+ 0x9200, /* stw r2, (r0, 0) */
+ 0x9310, /* stw r3, (r0, 4) */
+ 0x822e, /* ldw r2, (gb, 8) */
+ 0x7301, /* lrw r3, #offset */
+ 0x00c2, /* jmp r2 */
+ };
+
+/* Branch stub support. */
+
+enum stub_insn_type
+{
+ INSN16,
+ INSN32,
+ DATA_TYPE
+};
+
+bfd_boolean use_branch_stub = TRUE;
+typedef struct
+{
+ bfd_vma data;
+ enum stub_insn_type type;
+ unsigned int r_type;
+ int reloc_addend;
+} insn_sequence;
+
+static const insn_sequence elf32_csky_stub_long_branch[] =
+{
+ {0xea8d0002, INSN32, R_CKCORE_NONE, 0x0}, /* lrw t1,[pc+8] */
+ {0x7834, INSN16, R_CKCORE_NONE, 0x0}, /* jmp t1 */
+ {0x6c03, INSN16, R_CKCORE_NONE, 0x0}, /* nop */
+ {0x0, DATA_TYPE, R_CKCORE_ADDR32, 0x0} /* .long addr*/
+};
+
+static const insn_sequence elf32_csky_stub_long_branch_jmpi[] =
+{
+ {0xeac00001, INSN32, R_CKCORE_NONE, 0x0}, /* jmpi [pc+4] */
+ {0x0, DATA_TYPE, R_CKCORE_ADDR32, 0x0} /* .long addr*/
+};
+
+/* The bsr instruction offset limit. */
+#define BSR_MAX_FWD_BRANCH_OFFSET (((1 << 25) - 1) << 1)
+#define BSR_MAX_BWD_BRANCH_OFFSET (-(1 << 26))
+
+#define STUB_SUFFIX ".stub"
+#define STUB_ENTRY_NAME "__%s_veneer"
+
+/* One entry per long/short branch stub defined above. */
+#define DEF_STUBS \
+ DEF_STUB(long_branch) \
+ DEF_STUB(long_branch_jmpi)
+
+#define DEF_STUB(x) csky_stub_##x,
+enum elf32_csky_stub_type
+{
+ csky_stub_none,
+ DEF_STUBS
+};
+#undef DEF_STUB
+
+typedef struct
+{
+ const insn_sequence* template_sequence;
+ int template_size;
+} stub_def;
+
+#define DEF_STUB(x) {elf32_csky_stub_##x, ARRAY_SIZE(elf32_csky_stub_##x)},
+static const stub_def stub_definitions[] = {
+ {NULL, 0},
+ DEF_STUBS
+};
+
+/* The size of the thread control block. */
+#define TCB_SIZE 8
+
+struct csky_elf_obj_tdata
+{
+ struct elf_obj_tdata root;
+
+ /* tls_type for each local got entry. */
+ char *local_got_tls_type;
+};
+
+#define csky_elf_local_got_tls_type(bfd) \
+ (csky_elf_tdata (bfd)->local_got_tls_type)
+
+#define csky_elf_tdata(bfd) \
+ ((struct csky_elf_obj_tdata *) (bfd)->tdata.any)
+
+struct elf32_csky_stub_hash_entry
+{
+ /* Base hash table entry structure. */
+ struct bfd_hash_entry root;
+
+ /* The stub section. */
+ asection *stub_sec;
+
+ /* Offset within stub_sec of the beginning of this stub. */
+ bfd_vma stub_offset;
+
+ /* Given the symbol's value and its section we can determine its final
+ value when building the stubs (so the stub knows where to jump). */
+ bfd_vma target_value;
+ asection *target_section;
+
+ /* Offset to apply to relocation referencing target_value. */
+ bfd_vma target_addend;
+
+ /* The stub type. */
+ enum elf32_csky_stub_type stub_type;
+ /* Its encoding size in bytes. */
+ int stub_size;
+ /* Its template. */
+ const insn_sequence *stub_template;
+ /* The size of the template (number of entries). */
+ int stub_template_size;
+
+ /* The symbol table entry, if any, that this was derived from. */
+ struct csky_elf_link_hash_entry *h;
+
+ /* Destination symbol type. */
+ unsigned char st_type;
+
+ /* Where this stub is being called from, or, in the case of combined
+ stub sections, the first input section in the group. */
+ asection *id_sec;
+
+ /* The name for the local symbol at the start of this stub. The
+ stub name in the hash table has to be unique; this does not, so
+ it can be friendlier. */
+ char *output_name;
+};
+
+#define csky_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_csky_stub_hash_entry *) \
+ bfd_hash_lookup ((table), (string), (create), (copy)))
+
+/* C-SKY ELF linker hash entry. */
+struct csky_elf_link_hash_entry
+{
+ struct elf_link_hash_entry elf;
+ int plt_refcount;
+ /* For sub jsri2bsr relocs count. */
+ int jsri2bsr_refcount;
+ /* Track dynamic relocs copied for this symbol. */
+ struct elf_dyn_relocs *dyn_relocs;
+
+#define GOT_UNKNOWN 0
+#define GOT_NORMAL 1
+#define GOT_TLS_GD 2
+#define GOT_TLS_IE 4
+
+ unsigned char tls_type;
+
+ /* A pointer to the most recently used stub hash entry against this
+ symbol. */
+ struct elf32_csky_stub_hash_entry *stub_cache;
+};
+
+/* Traverse an C-SKY ELF linker hash table. */
+#define csky_elf_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the C-SKY ELF linker hash table from a link_info structure. */
+#define csky_elf_hash_table(info) \
+ ((elf_hash_table_id ((struct elf_link_hash_table *) ((info)->hash)) \
+ == CSKY_ELF_DATA) \
+ ? ((struct csky_elf_link_hash_table *) ((info)->hash)) \
+ : NULL)
+
+#define csky_elf_hash_entry(ent) ((struct csky_elf_link_hash_entry*)(ent))
+
+/* Array to keep track of which stub sections have been created, and
+ information on stub grouping. */
+struct map_stub
+{
+ /* This is the section to which stubs in the group will be
+ attached. */
+ asection *link_sec;
+ /* The stub section. */
+ asection *stub_sec;
+};
+
+/* C-SKY ELF linker hash table. */
+struct csky_elf_link_hash_table
+{
+ struct elf_link_hash_table elf;
+
+ /* Small local sym cache. */
+ struct sym_cache sym_cache;
+
+ /* Data for R_CKCORE_TLS_LDM32 relocations. */
+ union
+ {
+ bfd_signed_vma refcount;
+ bfd_vma offset;
+ } tls_ldm_got;
+
+ /* The stub hash table. */
+ struct bfd_hash_table stub_hash_table;
+
+ /* Linker stub bfd. */
+ bfd *stub_bfd;
+
+ /* Linker call-backs. */
+ asection * (*add_stub_section) (const char *, asection *);
+ void (*layout_sections_again) (void);
+
+ /* Array to keep track of which stub sections have been created, and
+ * information on stub grouping. */
+ struct map_stub *stub_group;
+
+ /* Number of elements in stub_group. */
+ unsigned int top_id;
+
+ /* Assorted information used by elf32_csky_size_stubs. */
+ unsigned int bfd_count;
+ unsigned int top_index;
+ asection **input_list;
+};
+
+
+
+/* We can't change vectors in the bfd target which will apply to
+ data sections, however we only do this to the text sections. */
+static bfd_vma
+csky_get_insn_32 (bfd *input_bfd,
+ bfd_byte *location)
+{
+ if (bfd_big_endian (input_bfd))
+ return bfd_get_32 (input_bfd, location);
+ else
+ return (bfd_get_16 (input_bfd, location) << 16
+ | bfd_get_16 (input_bfd, location + 2));
+}
+
+static void
+csky_put_insn_32 (bfd *input_bfd,
+ bfd_vma x,
+ bfd_byte *location)
+{
+ if (bfd_big_endian (input_bfd))
+ bfd_put_32 (input_bfd, x, location);
+ else
+ {
+ bfd_put_16 (input_bfd, x >> 16, location);
+ bfd_put_16 (input_bfd, x & 0xffff, location + 2);
+ }
+}
+
+/* Find or create a stub section. Returns a pointer to the stub section, and
+ * the section to which the stub section will be attached (in *LINK_SEC_P).
+ * LINK_SEC_P may be NULL. */
+static asection *
+elf32_csky_create_or_find_stub_sec (asection **link_sec_p, asection *section,
+ struct csky_elf_link_hash_table *htab)
+{
+ asection *link_sec;
+ asection *stub_sec;
+
+ link_sec = htab->stub_group[section->id].link_sec;
+ stub_sec = htab->stub_group[section->id].stub_sec;
+ if (stub_sec == NULL)
+ {
+ stub_sec = htab->stub_group[link_sec->id].stub_sec;
+ if (stub_sec == NULL)
+ {
+ size_t namelen;
+ bfd_size_type len;
+ char *s_name;
+
+ namelen = strlen (link_sec->name);
+ len = namelen + sizeof (STUB_SUFFIX);
+ s_name = bfd_alloc (htab->stub_bfd, len);
+ if (s_name == NULL)
+ return NULL;
+
+ memcpy (s_name, link_sec->name, namelen);
+ memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
+ stub_sec = (*htab->add_stub_section) (s_name, link_sec);
+ if (stub_sec == NULL)
+ return NULL;
+ htab->stub_group[link_sec->id].stub_sec = stub_sec;
+ }
+ htab->stub_group[section->id].stub_sec = stub_sec;
+ }
+
+ if (link_sec_p)
+ *link_sec_p = link_sec;
+
+ return stub_sec;
+}
+
+/* Build a name for an entry in the stub hash table. */
+static char *
+elf32_csky_stub_name (const asection *input_section,
+ const asection *sym_sec,
+ const struct csky_elf_link_hash_entry *hash,
+ const Elf_Internal_Rela *rel)
+{
+ char *stub_name;
+ bfd_size_type len;
+
+ if (hash)
+ {
+ len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
+ sprintf (stub_name, "%08x_%s+%x",
+ input_section->id & 0xffffffff,
+ hash->elf.root.root.string,
+ (int) rel->r_addend & 0xffffffff);
+ }
+ else
+ {
+ len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
+ stub_name = bfd_malloc (len);
+ if (stub_name != NULL)
+ sprintf (stub_name, "%08x_%x:%x+%x",
+ input_section->id & 0xffffffff,
+ sym_sec->id & 0xffffffff,
+ (int) ELF32_R_SYM (rel->r_info) & 0xffffffff,
+ (int) rel->r_addend & 0xffffffff);
+ }
+
+ return stub_name;
+}
+
+/* Determine the type of stub needed, if any, for a call. */
+
+static enum elf32_csky_stub_type
+csky_type_of_stub (struct bfd_link_info *info,
+ asection *input_sec,
+ const Elf_Internal_Rela *rel,
+ unsigned char st_type,
+ struct csky_elf_link_hash_entry *hash,
+ bfd_vma destination,
+ asection *sym_sec ATTRIBUTE_UNUSED,
+ bfd *input_bfd ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED)
+{
+ bfd_vma location;
+ bfd_signed_vma branch_offset;
+ unsigned int r_type;
+ enum elf32_csky_stub_type stub_type = csky_stub_none;
+ struct elf_link_hash_entry * h = &hash->elf;
+
+ /* We don't know the actual type of destination in case it is of
+ type STT_SECTION: give up. */
+ if (st_type == STT_SECTION)
+ return stub_type;
+
+ location = (input_sec->output_offset
+ + input_sec->output_section->vma
+ + rel->r_offset);
+
+ branch_offset = (bfd_signed_vma)(destination - location);
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_type == R_CKCORE_PCREL_IMM26BY2
+ && ((h != NULL
+ && ((h->def_dynamic && !h->def_regular)
+ || (bfd_link_pic (info)
+ && h->root.type == bfd_link_hash_defweak)))
+ || branch_offset > BSR_MAX_FWD_BRANCH_OFFSET
+ || branch_offset < BSR_MAX_BWD_BRANCH_OFFSET))
+ {
+ if (bfd_csky_arch (info->output_bfd) == CSKY_ARCH_810
+ || bfd_csky_arch (info->output_bfd) == CSKY_ARCH_807)
+ stub_type = csky_stub_long_branch_jmpi;
+ else
+ stub_type = csky_stub_long_branch;
+ }
+
+ return stub_type;
+}
+
+
+/* Create an entry in an C-SKY ELF linker hash table. */
+
+static struct bfd_hash_entry *
+csky_elf_link_hash_newfunc (struct bfd_hash_entry * entry,
+ struct bfd_hash_table * table,
+ const char * string)
+{
+ struct csky_elf_link_hash_entry * ret =
+ (struct csky_elf_link_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ {
+ ret = (struct csky_elf_link_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct csky_elf_link_hash_entry));
+ if (ret == NULL)
+ return (struct bfd_hash_entry *) ret;
+ }
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct csky_elf_link_hash_entry *)
+ _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *)ret,
+ table, string));
+ if (ret != NULL)
+ {
+ struct csky_elf_link_hash_entry *eh;
+
+ eh = (struct csky_elf_link_hash_entry *) ret;
+ eh->dyn_relocs = NULL;
+ eh->plt_refcount = 0;
+ eh->jsri2bsr_refcount = 0;
+ eh->tls_type = GOT_NORMAL;
+ ret->stub_cache = NULL;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
+
+/* Initialize an entry in the stub hash table. */
+
+static struct bfd_hash_entry *
+stub_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
+{
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (entry == NULL)
+ {
+ entry = ((struct bfd_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_csky_stub_hash_entry)));
+ if (entry == NULL)
+ return entry;
+ }
+
+ /* Call the allocation method of the superclass. */
+ entry = bfd_hash_newfunc (entry, table, string);
+ if (entry != NULL)
+ {
+ struct elf32_csky_stub_hash_entry *eh;
+
+ /* Initialize the local fields. */
+ eh = (struct elf32_csky_stub_hash_entry *) entry;
+ eh->stub_sec = NULL;
+ eh->stub_offset = 0;
+ eh->target_value = 0;
+ eh->target_section = NULL;
+ eh->target_addend = 0;
+ eh->stub_type = csky_stub_none;
+ eh->stub_size = 0;
+ eh->stub_template = NULL;
+ eh->stub_template_size = -1;
+ eh->h = NULL;
+ eh->id_sec = NULL;
+ eh->output_name = NULL;
+ }
+
+ return entry;
+}
+
+/* Free the derived linker hash table. */
+
+static void
+csky_elf_link_hash_table_free (bfd *obfd)
+{
+ struct csky_elf_link_hash_table *ret
+ = (struct csky_elf_link_hash_table *) obfd->link.hash;
+
+ bfd_hash_table_free (&ret->stub_hash_table);
+ _bfd_elf_link_hash_table_free (obfd);
+}
+
+/* Create an CSKY elf linker hash table. */
+
+static struct bfd_link_hash_table *
+csky_elf_link_hash_table_create (bfd *abfd)
+{
+ struct csky_elf_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct csky_elf_link_hash_table);
+
+ ret = (struct csky_elf_link_hash_table*) bfd_zmalloc (amt);
+ if (ret == NULL)
+ return NULL;
+
+ if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
+ csky_elf_link_hash_newfunc,
+ sizeof (struct csky_elf_link_hash_entry),
+ CSKY_ELF_DATA))
+ {
+ free (ret);
+ return NULL;
+ }
+
+ if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc,
+ sizeof (struct elf32_csky_stub_hash_entry)))
+ {
+ free (ret);
+ return NULL;
+ }
+ ret->elf.root.hash_table_free = csky_elf_link_hash_table_free;
+ return &ret->elf.root;
+}
+
+static bfd_boolean
+csky_elf_mkobject (bfd *abfd)
+{
+ return bfd_elf_allocate_object (abfd, sizeof (struct csky_elf_obj_tdata),
+ CSKY_ELF_DATA);
+}
+
+/* Adjust a symbol defined by a dynamic object and referenced by a
+ regular object. The current definition is in some section of the
+ dynamic object, but we're not including those sections. We have to
+ change the definition to something the rest of the link can
+ understand. */
+
+static bfd_boolean
+csky_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
+{
+ struct csky_elf_link_hash_entry *eh;
+ eh = (struct csky_elf_link_hash_entry *)h;
+ if (eh == NULL)
+ return FALSE;
+
+ /* Clear jsri2bsr_refcount, if creating shared library files. */
+ if (bfd_link_pic (info) && eh->jsri2bsr_refcount > 0)
+ eh->jsri2bsr_refcount = 0;
+
+ /* If there is a function, put it in the procedure linkage table. We
+ will fill in the contents of the procedure linkage table later. */
+ if (h->needs_plt)
+ {
+ /* Calls to STT_GNU_IFUNC symbols always use a PLT, even if the
+ symbol binds locally. */
+ if (h->plt.refcount <= 0
+ || (h->type != STT_GNU_IFUNC
+ && (SYMBOL_CALLS_LOCAL (info, h)
+ || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak))))
+
+ {
+ /* This case can occur if we saw a PLT32 reloc in an input
+ file, but the symbol was never referred to by a dynamic
+ object, or if all references were garbage collected. In
+ such a case, we don't actually need to build a procedure
+ linkage table, and we can just do a PC32 reloc instead. */
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
+ if (h->got.refcount == 0)
+ h->got.refcount += 1;
+ }
+ else if (h->got.refcount != 0)
+ {
+ h->got.refcount -= eh->plt_refcount;
+ eh->plt_refcount = 0;
+ }
+ return TRUE;
+ }
+ else
+ /* It's possible that we incorrectly decided a .plt reloc was
+ needed for an R_CKCORE_PC32 or similar reloc to a non-function
+ sym in check_relocs. We can't decide accurately between function
+ and non-function syms in check_relocs; objects loaded later in
+ the link may change h->type. So fix it now. */
+ h->plt.offset = (bfd_vma) -1;
+
+ /* If this is a weak symbol, and there is a real definition, the
+ processor independent code will have arranged for us to see the
+ real definition first, and we can just use the same value. */
+ if (h->is_weakalias)
+ {
+ struct elf_link_hash_entry *def = weakdef (h);
+ BFD_ASSERT (def->root.type == bfd_link_hash_defined);
+ h->root.u.def.section = def->root.u.def.section;
+ h->root.u.def.value = def->root.u.def.value;
+ return TRUE;
+ }
+
+ /* This is a reference to a symbol defined by a dynamic object which
+ is not a function. */
+
+ /* If we are creating a shared library, we must presume that the
+ only references to the symbol are via the global offset table.
+ For such cases we need not do anything here; the relocations will
+ be handled correctly by relocate_section. */
+ if (bfd_link_pic (info))
+ return TRUE;
+
+ h->non_got_ref = 0;
+ return TRUE;
+}
+
+/* Allocate space in .plt, .got and associated reloc sections for
+ dynamic relocs. */
+
+static bfd_boolean
+csky_allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
+{
+ struct bfd_link_info *info;
+ struct csky_elf_link_hash_table *htab;
+ struct csky_elf_link_hash_entry *eh;
+ struct elf_dyn_relocs *p;
+
+ /* For indirect case, such as _ZdlPv to _ZdlPv@@GLIBCXX_3.4. */
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+
+ info = (struct bfd_link_info *) inf;
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+ /*TODO: how to deal with weak symbol relocs. */
+ if ((htab->elf.dynamic_sections_created || h->type == STT_GNU_IFUNC)
+ && h->plt.refcount > 0)
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local
+ && !bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ if (bfd_link_pic (info) || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
+ {
+ asection *splt = htab->elf.splt;
+
+ /* If this is the first .plt entry, make room for the special
+ first entry. */
+ if (splt->size == 0)
+ {
+ if (bfd_csky_abi (info->output_bfd) == CSKY_ABI_V1)
+ splt->size += PLT_ENTRY_SIZE_P;
+ else
+ splt->size += PLT_ENTRY_SIZE;
+ }
+ h->plt.offset = splt->size;
+
+ /* If this symbol is not defined in a regular file, and we are
+ not generating a shared library, then set the symbol to this
+ location in the .plt. This is required to make function
+ pointers compare as equal between the normal executable and
+ the shared library. */
+ if (!bfd_link_pic (info) && !h->def_regular)
+ {
+ h->root.u.def.section = splt;
+ h->root.u.def.value = h->plt.offset;
+ }
+
+ /* Make room for this entry. */
+ if (bfd_csky_abi (info->output_bfd) == CSKY_ABI_V1)
+ splt->size += PLT_ENTRY_SIZE_P;
+ else
+ splt->size += PLT_ENTRY_SIZE;
+ /* We also need to make an entry in the .rela.plt section. */
+ htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
+
+ /* We also need to make an entry in the .got.plt section, which
+ will be placed in the .got section by the linker script. */
+ htab->elf.sgotplt->size += 4;
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->needs_plt = 0;
+ }
+
+ if (h->got.refcount > 0)
+ {
+ asection *sgot;
+ bfd_boolean dyn;
+ int indx;
+
+ int tls_type = csky_elf_hash_entry (h)->tls_type;
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local
+ && !bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+
+ sgot = htab->elf.sgot;
+ h->got.offset = sgot->size;
+ BFD_ASSERT (tls_type != GOT_UNKNOWN);
+ if (tls_type == GOT_NORMAL)
+ /* Non-TLS symbols need one GOT slot. */
+ sgot->size += 4;
+ else
+ {
+ if (tls_type & GOT_TLS_GD)
+ /* R_CKCORE_TLS_GD32 needs 2 consecutive GOT slots. */
+ sgot->size += 8;
+ if (tls_type & GOT_TLS_IE)
+ /* R_CKCORE_TLS_IE32 needs one GOT slot. */
+ sgot->size += 4;
+ }
+ dyn = htab->elf.dynamic_sections_created;
+ indx = 0;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
+ && (! bfd_link_pic (info) || !SYMBOL_REFERENCES_LOCAL (info, h)))
+ indx = h->dynindx;
+
+ if (tls_type != GOT_NORMAL
+ && (bfd_link_pic (info) || indx != 0)
+ && ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ || h->root.type != bfd_link_hash_undefweak))
+ {
+ if (tls_type & GOT_TLS_IE)
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
+ if (tls_type & GOT_TLS_GD)
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
+ if ((tls_type & GOT_TLS_GD) && indx != 0)
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ || h->root.type != bfd_link_hash_undefweak)
+ && (bfd_link_pic (info)
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else
+ h->got.offset = (bfd_vma) -1;
+
+ eh = (struct csky_elf_link_hash_entry *) h;
+ if (eh->dyn_relocs == NULL)
+ return TRUE;
+
+ /* In the shared -Bsymbolic case, discard space allocated for
+ dynamic pc-relative relocs against symbols which turn out to be
+ defined in regular objects. For the normal shared case, discard
+ space for pc-relative relocs that have become local due to symbol
+ visibility changes. */
+
+ if (bfd_link_pic (info))
+ {
+ if (SYMBOL_CALLS_LOCAL (info, h))
+ {
+ struct elf_dyn_relocs **pp;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ {
+ p->count -= p->pc_count;
+ p->pc_count = 0;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
+ }
+ }
+
+ if (eh->jsri2bsr_refcount
+ && h->root.type == bfd_link_hash_defined
+ && eh->dyn_relocs != NULL)
+ eh->dyn_relocs->count -= eh->jsri2bsr_refcount;
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (eh->dyn_relocs != NULL
+ && h->root.type == bfd_link_hash_undefweak)
+ {
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ eh->dyn_relocs = NULL;
+
+ /* Make sure undefined weak symbols are output as a dynamic
+ symbol in PIEs. */
+ else if (h->dynindx == -1
+ && !h->forced_local
+ && !bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ }
+ else
+ {
+ /* For the non-shared case, discard space for relocs against
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
+
+ if (!h->non_got_ref
+ && ((h->def_dynamic && !h->def_regular)
+ || (htab->elf.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_undefined))))
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && !h->forced_local
+ && !bfd_elf_link_record_dynamic_symbol (info, h))
+ return FALSE;
+
+ /* If that succeeded, we know we'll be keeping all the
+ relocs. */
+ if (h->dynindx != -1)
+ goto keep;
+ }
+
+ eh->dyn_relocs = NULL;
+
+ keep: ;
+ }
+
+ /* Finally, allocate space. */
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *srelgot = htab->elf.srelgot;
+ srelgot->size += p->count * sizeof (Elf32_External_Rela);
+ }
+
+ return TRUE;
+}
+
+/* Find any dynamic relocs that apply to read-only sections. */
+
+static bfd_boolean
+csky_readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
+{
+ struct csky_elf_link_hash_entry *eh;
+ struct elf_dyn_relocs *p;
+
+ eh = (struct csky_elf_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
+
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ {
+ struct bfd_link_info *info = (struct bfd_link_info *) inf;
+ /* DF_TEXTREL flag means there is at least one relocation in
+ read-only sections; it may modify those sections
+ when relocating. */
+ info->flags |= DF_TEXTREL;
+
+ /* Not an error, just cut short the traversal. */
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+/* Set the sizes of the dynamic sections. */
+
+static bfd_boolean
+csky_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
+{
+ struct csky_elf_link_hash_table *htab;
+ bfd *dynobj;
+ asection *s;
+ bfd_boolean relocs;
+ bfd *ibfd;
+
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+ dynobj = htab->elf.dynobj;
+ if (dynobj == NULL)
+ return FALSE;
+
+ if (htab->elf.dynamic_sections_created)
+ {
+ /* Set the contents of the .interp section to the interpreter. */
+ if (!bfd_link_pic (info) && !info->nointerp)
+ {
+ s = bfd_get_section_by_name (dynobj, ".interp");
+ BFD_ASSERT (s != NULL);
+ s->size = sizeof ELF_DYNAMIC_INTERPRETER;
+ s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ }
+ }
+
+ /* Set up .got offsets for local syms, and space for local dynamic
+ relocs. */
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
+ {
+ bfd_signed_vma *local_got_refcounts;
+ bfd_signed_vma *end_local_got;
+ bfd_size_type locsymcount;
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *srelgot, *sgot;
+ char *local_tls_type;
+
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
+ continue;
+
+ sgot = htab->elf.sgot;
+ srelgot = htab->elf.srelgot;
+
+ for (s = ibfd->sections; s != NULL; s = s->next)
+ {
+ struct elf_dyn_relocs *p;
+
+ for (p = *((struct elf_dyn_relocs **)
+ &elf_section_data (s)->local_dynrel);
+ p != NULL;
+ p = p->next)
+ {
+ if (!bfd_is_abs_section (p->sec)
+ && bfd_is_abs_section (p->sec->output_section))
+ /* Input section has been discarded, either because
+ it is a copy of a linkonce section or due to
+ linker script /DISCARD/, so we'll be discarding
+ the relocs too. */
+ ;
+ else if (p->count != 0)
+ {
+ srelgot->size += p->count * sizeof (Elf32_External_Rela);
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ info->flags |= DF_TEXTREL;
+ }
+ }
+ }
+
+ local_got_refcounts = elf_local_got_refcounts (ibfd);
+ if (!local_got_refcounts)
+ continue;
+
+ symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
+ locsymcount = symtab_hdr->sh_info;
+ end_local_got = local_got_refcounts + locsymcount;
+ local_tls_type = csky_elf_local_got_tls_type (ibfd);
+
+ for (; local_got_refcounts < end_local_got;
+ ++local_got_refcounts, ++local_tls_type)
+ {
+ if (*local_got_refcounts > 0)
+ {
+ /* GOT_TLS_GD and GOT_TLS_IE type for TLS, GOT_NORMAL type
+ for GOT. If output file is shared library, we should output
+ GOT_TLS_GD type relocation in .rel.got. */
+ *local_got_refcounts = sgot->size;
+ if (*local_tls_type & GOT_TLS_GD)
+ /* TLS_GD relocs need an 8-byte structure in the GOT. */
+ sgot->size += 8;
+ if (*local_tls_type & GOT_TLS_IE)
+ sgot->size += 4;
+ if (*local_tls_type == GOT_NORMAL)
+ sgot->size += 4;
+ if (bfd_link_pic (info) || *local_tls_type == GOT_TLS_GD)
+ srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_got_refcounts = (bfd_vma) -1;
+ }
+ }
+
+ if (htab->tls_ldm_got.refcount > 0)
+ {
+ /* Allocate two GOT entries and one dynamic relocation (if necessary)
+ for R_CSKY_TLS_LDM32 relocations. */
+ htab->tls_ldm_got.offset = htab->elf.sgot->size;
+ htab->elf.sgot->size += 8;
+ if (bfd_link_pic (info))
+ htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
+ }
+ else
+ htab->tls_ldm_got.offset = -1;
+
+ /* Allocate global sym .plt and .got entries, and space for global
+ sym dynamic relocs. */
+ elf_link_hash_traverse (&htab->elf, csky_allocate_dynrelocs, (PTR) info);
+
+ /* Check for GOT overflow. */
+ if (check_got_overflow == 1
+ && htab->elf.sgot->size + htab->elf.sgotplt->size > GOT_MAX_SIZE)
+ {
+ _bfd_error_handler (_("error: GOT TABLE SIZE OUT OF RANGE!"));
+ return FALSE;
+ }
+
+ /* We now have determined the sizes of the various dynamic sections.
+ Allocate memory for them. */
+ relocs = FALSE;
+ for (s = dynobj->sections; s != NULL; s = s->next)
+ {
+ bfd_boolean strip_section = TRUE;
+
+ if ((s->flags & SEC_LINKER_CREATED) == 0)
+ continue;
+
+ if (s == htab->elf.splt
+ || s == htab->elf.sgot
+ || s == htab->elf.sgotplt)
+ {
+ /* Strip this section if we don't need it;
+ see the comment below. */
+ /* We'd like to strip these sections if they aren't needed, but if
+ we've exported dynamic symbols from them we must leave them.
+ It's too late to tell BFD to get rid of the symbols. */
+
+ if (htab->elf.hplt != NULL)
+ strip_section = FALSE;
+ }
+ else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rel") )
+ {
+ if (s->size != 0 )
+ relocs = TRUE;
+
+ /* We use the reloc_count field as a counter if we need
+ to copy relocs into the output file. */
+ s->reloc_count = 0;
+ }
+ else
+ /* It's not one of our sections, so don't allocate space. */
+ continue;
+
+ /* Strip this section if we don't need it; see the
+ comment below. */
+ if (s->size == 0)
+ {
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rel.bss and
+ .rel.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
+ if (strip_section)
+ s->flags |= SEC_EXCLUDE;
+ continue;
+ }
+
+ if ((s->flags & SEC_HAS_CONTENTS) == 0)
+ continue;
+
+ /* Allocate memory for the section contents. We use bfd_zalloc
+ here in case unused entries are not reclaimed before the
+ section's contents are written out. This should not happen,
+ but this way if it does, we get a R_CKCORE_NONE reloc instead
+ of garbage. */
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
+ if (s->contents == NULL)
+ return FALSE;
+ }
+
+ if (htab->elf.dynamic_sections_created)
+ {
+ /* Add some entries to the .dynamic section. We fill in the
+ values later, in csky_elf_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ the .dynamic section. The DT_DEBUG entry is filled in by the
+ dynamic linker and used by the debugger. */
+#define add_dynamic_entry(TAG, VAL) \
+ _bfd_elf_add_dynamic_entry (info, TAG, VAL)
+
+ if (bfd_link_executable (info) && !add_dynamic_entry (DT_DEBUG, 0))
+ return FALSE;
+
+ if (htab->elf.sgot->size != 0 || htab->elf.splt->size)
+ {
+ if (!add_dynamic_entry (DT_PLTGOT, 0)
+ || !add_dynamic_entry (DT_PLTRELSZ, 0)
+ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || !add_dynamic_entry (DT_JMPREL, 0))
+ return FALSE;
+ }
+
+ if (relocs)
+ {
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT,
+ sizeof (Elf32_External_Rela)))
+ return FALSE;
+
+ /* If any dynamic relocs apply to a read-only section,
+ then we need a DT_TEXTREL entry. */
+ if ((info->flags & DF_TEXTREL) == 0)
+ elf_link_hash_traverse (&htab->elf, csky_readonly_dynrelocs,
+ (PTR) info);
+
+ if ((info->flags & DF_TEXTREL) != 0
+ && !add_dynamic_entry (DT_TEXTREL, 0))
+ return FALSE;
+ }
+ }
+#undef add_dynamic_entry
+
+ return TRUE;
+}
+
+/* Finish up dynamic symbol handling. We set the contents of various
+ dynamic sections here. */
+
+static bfd_boolean
+csky_elf_finish_dynamic_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
+{
+ struct csky_elf_link_hash_table *htab;
+
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ if (h->plt.offset != (bfd_vma) -1)
+ {
+ bfd_vma plt_index;
+ bfd_vma got_offset;
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
+ asection *plt, *relplt, *gotplt;
+
+ plt = htab->elf.splt;
+ relplt = htab->elf.srelplt;
+ gotplt = htab->elf.sgotplt;
+
+ /* This symbol has an entry in the procedure linkage table. Set
+ it up. */
+ BFD_ASSERT (h->dynindx != -1
+ || ((h->forced_local || bfd_link_executable (info))
+ && h->def_regular));
+ BFD_ASSERT (plt != NULL && gotplt != NULL && relplt != NULL);
+ if (bfd_csky_abi (output_bfd) == CSKY_ABI_V2)
+ plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
+ else
+ plt_index = h->plt.offset / PLT_ENTRY_SIZE_P - 1;
+ got_offset = (plt_index + 3) * 4;
+
+ /* Fill in the entry in the procedure linkage table. */
+ if (bfd_csky_abi (output_bfd) == CSKY_ABI_V2)
+ {
+ csky_put_insn_32 (output_bfd, csky_elf_plt_entry_v2[0],
+ plt->contents + h->plt.offset);
+ csky_put_insn_32 (output_bfd,
+ (csky_elf_plt_entry_v2[1] | plt_index),
+ plt->contents + h->plt.offset + 4);
+ csky_put_insn_32 (output_bfd, csky_elf_plt_entry_v2[2],
+ plt->contents + h->plt.offset + 8);
+ }
+ else
+ {
+ int i;
+ for (i = 0; i < 6; i++)
+ bfd_put_16 (output_bfd, csky_elf_plt_entry_v1[i],
+ plt->contents + h->plt.offset + i * 2);
+ bfd_put_32 (output_bfd, plt_index,
+ plt->contents + h->plt.offset + i * 2);
+ }
+
+ /* Fill in the entry in the .rel.plt section. */
+ rel.r_offset = (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset
+ + got_offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_CKCORE_JUMP_SLOT);
+ rel.r_addend = (plt->output_section->vma
+ + plt->output_offset
+ + h->plt.offset);
+ loc = (htab->elf.srelplt->contents
+ + plt_index * sizeof (Elf32_External_Rela));
+
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ if (! h->def_regular)
+ {
+ /* Mark the symbol as undefined, rather than as defined in
+ the .plt section. Leave the value alone. */
+ sym->st_shndx = SHN_UNDEF;
+ /* If the symbol is weak, we do need to clear the value.
+ Otherwise, the PLT entry would provide a definition for
+ the symbol even if the symbol wasn't defined anywhere,
+ and so the symbol would never be NULL. Leave the value if
+ there were any relocations where pointer equality matters
+ (this is a clue for the dynamic linker, to make function
+ pointer comparisons work between an application and shared
+ library). */
+ if (!h->ref_regular_nonweak || !h->pointer_equality_needed)
+ sym->st_value = 0;
+ }
+ }
+
+ /* Fill in the entry in the .got section. */
+ if (h->got.offset != (bfd_vma) -1
+ && ((csky_elf_hash_entry (h)->tls_type & GOT_TLS_GD) == 0)
+ && ((csky_elf_hash_entry (h)->tls_type & GOT_TLS_IE) == 0))
+ {
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
+
+ /* This symbol has an entry in the global offset table.
+ Set it up. */
+ BFD_ASSERT (htab->elf.sgot != NULL && htab->elf.srelgot != NULL);
+
+ rel.r_offset = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset
+ + (h->got.offset & ~(bfd_vma) 1));
+
+ /* If this is a static link, or it is a -Bsymbolic link and the
+ symbol is defined locally or was forced to be local because
+ of a version file, we just want to emit a RELATIVE reloc.
+ The entry in the global offset table will already have been
+ initialized in the relocate_section function. */
+ if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
+ {
+ BFD_ASSERT ((h->got.offset & 1) != 0);
+ rel.r_info = ELF32_R_INFO (0, R_CKCORE_RELATIVE);
+ rel.r_addend = (h->root.u.def.value
+ + h->root.u.def.section->output_offset
+ + h->root.u.def.section->output_section->vma);
+ }
+ else
+ {
+ BFD_ASSERT ((h->got.offset & 1) == 0);
+ bfd_put_32 (output_bfd, (bfd_vma) 0,
+ htab->elf.sgot->contents + h->got.offset);
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_CKCORE_GLOB_DAT);
+ rel.r_addend = 0;
+ }
+
+ loc = htab->elf.srelgot->contents;
+ loc += htab->elf.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ }
+
+
+ /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
+ if (strcmp (h->root.root.string, "_DYNAMIC") == 0
+ || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ sym->st_shndx = SHN_ABS;
+
+ return TRUE;
+}
+
+/* Finish up the dynamic sections. */
+
+static bfd_boolean
+csky_elf_finish_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ struct csky_elf_link_hash_table *htab;
+ bfd *dynobj;
+ asection *sdyn;
+ asection *got_sec;
+
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ dynobj = htab->elf.dynobj;
+ sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
+
+ if (htab->elf.dynamic_sections_created)
+ {
+ Elf32_External_Dyn *dyncon, *dynconend;
+
+ BFD_ASSERT (sdyn != NULL && htab->elf.sgot != NULL);
+
+ dyncon = (Elf32_External_Dyn *) sdyn->contents;
+ dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
+ for (; dyncon < dynconend; dyncon++)
+ {
+ Elf_Internal_Dyn dyn;
+ bfd_boolean size = FALSE;
+ const char *name = NULL;
+
+ bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+ switch (dyn.d_tag)
+ {
+ default:
+ continue;
+ case DT_RELA:
+ name = ".rela.dyn";
+ size = FALSE;
+ break;
+ case DT_RELASZ:
+ name = ".rela.dyn";
+ size = TRUE;
+ break;
+ case DT_PLTRELSZ:
+ name = ".rela.plt";
+ size = TRUE;
+ break;
+ case DT_PLTGOT:
+ dyn.d_un.d_ptr = htab->elf.sgot->output_section->vma;
+ break;
+ case DT_JMPREL:
+ dyn.d_un.d_ptr = htab->elf.srelplt->output_section->vma
+ + htab->elf.srelplt->output_offset;
+ break;
+ }
+
+ if (name != NULL)
+ {
+ asection *s = bfd_get_section_by_name (output_bfd, name);
+
+ if (s == NULL)
+ dyn.d_un.d_val = 0;
+ else if (!size)
+ dyn.d_un.d_ptr = s->vma;
+ else
+ dyn.d_un.d_val = s->size;
+ }
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ }
+ }
+
+ /* Fill in the first three entries in the global offset table. */
+ if (htab->elf.sgotplt)
+ got_sec = htab->elf.sgotplt;
+ else
+ got_sec = htab->elf.sgot;
+ if (got_sec != NULL)
+ {
+ if (got_sec->size > 0)
+ {
+ bfd_put_32 (output_bfd,
+ (sdyn == NULL ? (bfd_vma) 0
+ : sdyn->output_section->vma + sdyn->output_offset),
+ got_sec->contents);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, got_sec->contents + 4);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, got_sec->contents + 8);
+ }
+ elf_section_data (got_sec->output_section)->this_hdr.sh_entsize = 4;
+ }
+ return TRUE;
+}
+
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+
+static void
+csky_elf_copy_indirect_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *dir,
+ struct elf_link_hash_entry *ind)
+{
+ struct csky_elf_link_hash_entry *edir, *eind;
+
+ edir = (struct csky_elf_link_hash_entry *) dir;
+ eind = (struct csky_elf_link_hash_entry *) ind;
+
+ if (eind->dyn_relocs != NULL)
+ {
+ if (edir->dyn_relocs != NULL)
+ {
+ struct elf_dyn_relocs **pp;
+ struct elf_dyn_relocs *p;
+
+ /* Add reloc counts against the indirect sym to the direct sym
+ list. Merge any entries against the same section. */
+ for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
+ {
+ struct elf_dyn_relocs *q;
+
+ for (q = edir->dyn_relocs; q != NULL; q = q->next)
+ if (q->sec == p->sec)
+ {
+ q->pc_count += p->pc_count;
+ q->count += p->count;
+ *pp = p->next;
+ break;
+ }
+ if (q == NULL)
+ pp = &p->next;
+ }
+ *pp = edir->dyn_relocs;
+ }
+ edir->dyn_relocs = eind->dyn_relocs;
+ eind->dyn_relocs = NULL;
+ }
+ if (ind->root.type == bfd_link_hash_indirect
+ && dir->got.refcount <= 0)
+ {
+ edir->tls_type = eind->tls_type;
+ eind->tls_type = GOT_UNKNOWN;
+ }
+ _bfd_elf_link_hash_copy_indirect (info, dir, ind);
+}
+
+/* Used to decide how to sort relocs in an optimal manner for the
+ dynamic linker, before writing them out. */
+
+static enum elf_reloc_type_class
+csky_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const asection *rel_sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela *rela)
+{
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_CKCORE_RELATIVE:
+ return reloc_class_relative;
+ case R_CKCORE_JUMP_SLOT:
+ return reloc_class_plt;
+ case R_CKCORE_COPY:
+ return reloc_class_copy;
+ case R_CKCORE_IRELATIVE:
+ return reloc_class_ifunc;
+ default:
+ return reloc_class_normal;
+ }
+}
+
+/* Return the section that should be marked against GC for a given
+ relocation. */
+
+static asection *
+csky_elf_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
+{
+ if (h != NULL)
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_CKCORE_GNU_VTINHERIT:
+ case R_CKCORE_GNU_VTENTRY:
+ return NULL;
+ }
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
+}
+
+/* Look through the relocs for a section during the first phase.
+ Since we don't do .gots or .plts, we just need to consider the
+ virtual table relocs for gc. */
+static bfd_boolean
+csky_elf_check_relocs (bfd * abfd,
+ struct bfd_link_info * info,
+ asection * sec,
+ const Elf_Internal_Rela * relocs)
+{
+ Elf_Internal_Shdr * symtab_hdr;
+ struct elf_link_hash_entry ** sym_hashes;
+ const Elf_Internal_Rela * rel;
+ const Elf_Internal_Rela * rel_end;
+ struct csky_elf_link_hash_table *htab;
+ asection *sreloc;
+
+ /* if output type is relocatable, return. */
+ if (bfd_link_relocatable (info))
+ return TRUE;
+
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (abfd);
+
+ rel_end = relocs + sec->reloc_count;
+ sreloc = NULL;
+ for (rel = relocs; rel < rel_end; rel++)
+ {
+ struct elf_link_hash_entry *h;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *isym;
+ int r_type;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ /* A local symbol. */
+ isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (isym == NULL)
+ return FALSE;
+ h = NULL;
+ }
+ else
+ {
+ isym = NULL;
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ }
+
+ switch (r_type)
+ {
+ case R_CKCORE_PCREL_IMM26BY2:
+ case R_CKCORE_PCREL_IMM11BY2:
+ case R_CKCORE_PCREL_JSR_IMM11BY2:
+ case R_CKCORE_PCREL_JSR_IMM26BY2:
+ /* If the symbol is '*UND*', means this reloc is used for
+ * callgraph, don't need to leave to shared object. */
+ if (r_symndx == 0)
+ break;
+ case R_CKCORE_ADDR32:
+ case R_CKCORE_ADDR_HI16:
+ case R_CKCORE_ADDR_LO16:
+ /* If we are creating a shared library or relocatable executable,
+ and this is a reloc against a global symbol, then we need to
+ copy the reloc into the shared library. However, if we are
+ linking with -Bsymbolic, we do not need to copy a reloc
+ against a global symbol which is defined in an object we are
+ including in the link (i.e., DEF_REGULAR is set). At
+ this point we have not seen all the input files, so it is
+ possible that DEF_REGULAR is not set now but will be set
+ later (it is never cleared). We account for that possibility
+ below by storing information in the relocs_copied field of
+ the hash table entry. */
+ if ((bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0)
+ || (!bfd_link_pic (info)
+ && (sec->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && (h->root.type == bfd_link_hash_defweak
+ || !h->def_regular)))
+ {
+ struct elf_dyn_relocs *p;
+ struct elf_dyn_relocs **head;
+ /* We must copy these reloc types into the output file.
+ Create a reloc section in dynobj and make room for
+ this reloc. */
+ if (sreloc == NULL)
+ {
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+
+ sreloc = _bfd_elf_make_dynamic_reloc_section
+ (sec, htab->elf.dynobj, 2, abfd, TRUE);
+
+ if (sreloc == NULL)
+ return FALSE;
+ }
+
+ if (h == NULL && !use_branch_stub
+ && ((ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_IMM26BY2)
+ || (ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_IMM11BY2)))
+ break;
+
+ /* If this is a global symbol, we count the number of
+ relocations we need for this symbol.
+ jsri2bsr_refcount for relocation output maybe*/
+ if (h != NULL)
+ {
+ struct csky_elf_link_hash_entry *eh;
+ eh = (struct csky_elf_link_hash_entry *)h;
+ if ((ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_JSR_IMM26BY2)
+ || (ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_JSR_IMM11BY2))
+ eh->jsri2bsr_refcount += 1;
+ head = &eh->dyn_relocs;
+ }
+ else
+ {
+ /* Track dynamic relocs needed for local syms too.
+ We really need local syms available to do this
+ easily. Oh well. */
+ void **vpp;
+ asection *s;
+ Elf_Internal_Sym *loc_isym;
+
+ loc_isym = bfd_sym_from_r_symndx (&htab->sym_cache,
+ abfd, r_symndx);
+ if (loc_isym == NULL)
+ return FALSE;
+ s = bfd_section_from_elf_index (abfd, loc_isym->st_shndx);
+ if (s == NULL)
+ s = sec;
+ vpp = &elf_section_data (s)->local_dynrel;
+ head = (struct elf_dyn_relocs **)vpp;
+ }
+
+ p = *head;
+ if (p == NULL || p->sec != sec)
+ {
+ bfd_size_type amt = sizeof *p;
+ p = ((struct elf_dyn_relocs *)
+ bfd_alloc (htab->elf.dynobj, amt));
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+ p->pc_count = 0;
+ }
+
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_PCREL_IMM26BY2
+ || ELF32_R_TYPE (rel->r_info) == R_CKCORE_PCREL_IMM11BY2)
+ p->pc_count += 1;
+ p->count += 1;
+ }
+ break;
+
+ case R_CKCORE_PLT_IMM18BY4:
+ case R_CKCORE_PLT32:
+ /* This symbol requires a procedure linkage table entry. We
+ actually build the entry in adjust_dynamic_symbol,
+ because this might be a case of linking PIC code which is
+ never referenced by a dynamic object, in which case we
+ don't need to generate a procedure linkage table entry
+ after all. */
+
+ /* If this is a local symbol, we resolve it directly without
+ creating a procedure linkage table entry. */
+ if (h == NULL)
+ continue;
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_PLT_IMM18BY4)
+ check_got_overflow = 1;
+
+ h->needs_plt = 1;
+ h->plt.refcount += 1;
+ h->got.refcount += 1;
+ ((struct csky_elf_link_hash_entry *)h)->plt_refcount += 1;
+ break;
+
+ case R_CKCORE_GOT12:
+ case R_CKCORE_PLT12:
+ case R_CKCORE_GOT32:
+ case R_CKCORE_GOT_HI16:
+ case R_CKCORE_GOT_LO16:
+ case R_CKCORE_PLT_HI16:
+ case R_CKCORE_PLT_LO16:
+ case R_CKCORE_GOT_IMM18BY4:
+ case R_CKCORE_TLS_IE32:
+ case R_CKCORE_TLS_GD32:
+ {
+ int tls_type, old_tls_type;
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_CKCORE_TLS_IE32:
+ tls_type = GOT_TLS_IE;
+ break;
+ case R_CKCORE_TLS_GD32:
+ tls_type = GOT_TLS_GD;
+ break;
+ default:
+ tls_type = GOT_NORMAL;
+ break;
+ }
+ if (h != NULL)
+ {
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_GOT_IMM18BY4)
+ check_got_overflow = 1;
+ h->got.refcount += 1;
+ old_tls_type = csky_elf_hash_entry (h)->tls_type;
+ }
+ else
+ {
+ bfd_signed_vma *local_got_refcounts;
+
+ /* This is a global offset table entry for a local symbol. */
+ /* we can write a new function named
+ elf32_csky_allocate_local_sym_info() to replace
+ following code. */
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ size = symtab_hdr->sh_info;
+ size *= (sizeof (bfd_signed_vma) + sizeof (char));
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return FALSE;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ csky_elf_local_got_tls_type (abfd)
+ = (char *) (local_got_refcounts + symtab_hdr->sh_info);
+ }
+ local_got_refcounts[r_symndx] += 1;
+ old_tls_type = csky_elf_local_got_tls_type (abfd)[r_symndx];
+ }
+
+ /* We will already have issued an error message if there is a
+ TLS / non-TLS mismatch, based on the symbol type. We don't
+ support any linker relaxations. So just combine any TLS
+ types needed. */
+ if (old_tls_type != GOT_UNKNOWN && old_tls_type != GOT_NORMAL
+ && tls_type != GOT_NORMAL)
+ tls_type |= old_tls_type;
+
+ if (old_tls_type != tls_type)
+ {
+ if (h != NULL)
+ csky_elf_hash_entry (h)->tls_type = tls_type;
+ else
+ csky_elf_local_got_tls_type (abfd)[r_symndx] = tls_type;
+ }
+ }
+ /* Fall through. */
+
+ case R_CKCORE_TLS_LDM32:
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_TLS_LDM32)
+ htab->tls_ldm_got.refcount++;
+ /* Fall through. */
+
+ case R_CKCORE_GOTOFF:
+ case R_CKCORE_GOTPC:
+ case R_CKCORE_GOTOFF_HI16:
+ case R_CKCORE_GOTOFF_LO16:
+ case R_CKCORE_GOTPC_HI16:
+ case R_CKCORE_GOTPC_LO16:
+ case R_CKCORE_GOTOFF_IMM18:
+ if (htab->elf.sgot == NULL)
+ {
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+ if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
+ return FALSE;
+ }
+ break;
+
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_CKCORE_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_CKCORE_GNU_VTENTRY:
+ BFD_ASSERT (h != NULL);
+ if (h != NULL
+ && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
+ }
+ }
+
+ return TRUE;
+}
+
+static const struct bfd_elf_special_section csky_elf_special_sections[]=
+{
+ { STRING_COMMA_LEN (".ctors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".dtors"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
+/* Function to keep CSKY specific flags in the ELF header. */
+
+static bfd_boolean
+csky_elf_set_private_flags (bfd * abfd, flagword flags)
+{
+ BFD_ASSERT (! elf_flags_init (abfd)
+ || elf_elfheader (abfd)->e_flags == flags);
+
+ elf_elfheader (abfd)->e_flags = flags;
+ elf_flags_init (abfd) = TRUE;
+ return TRUE;
+}
+
+static csky_arch_for_merge *
+csky_find_arch_with_eflag (const unsigned long arch_eflag)
+{
+ csky_arch_for_merge *csky_arch = NULL;
+
+ for (csky_arch = csky_archs; csky_arch->name != NULL; csky_arch++)
+ if (csky_arch->arch_eflag == arch_eflag)
+ break;
+ if (csky_arch == NULL)
+ {
+ _bfd_error_handler (_("warning: unrecognized arch eflag '%#lx'"),
+ arch_eflag);
+ bfd_set_error (bfd_error_wrong_format);
+ }
+ return csky_arch;
+}
+
+/* Merge backend specific data from an object file to the output
+ object file when linking. */
+
+static bfd_boolean
+csky_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
+{
+ bfd *obfd = info->output_bfd;
+ flagword old_flags;
+ flagword new_flags;
+ csky_arch_for_merge *old_arch = NULL;
+ csky_arch_for_merge *new_arch = NULL;
+
+ /* Check if we have the same endianness. */
+ if (! _bfd_generic_verify_endian_match (ibfd, info))
+ return FALSE;
+
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return TRUE;
+
+ new_flags = elf_elfheader (ibfd)->e_flags;
+ old_flags = elf_elfheader (obfd)->e_flags;
+
+ if (! elf_flags_init (obfd))
+ {
+ /* First call, no flags set. */
+ elf_flags_init (obfd) = TRUE;
+ elf_elfheader (obfd)->e_flags = new_flags;
+ }
+ else if (new_flags == old_flags)
+ /* Do nothing. */
+ ;
+ else if (new_flags == 0 || old_flags == 0)
+ /* When one flag is 0, assign the other one's flag. */
+ elf_elfheader (obfd)->e_flags = new_flags | old_flags;
+ else
+ {
+ flagword newest_flag = 0;
+
+ if ((new_flags & CSKY_ARCH_MASK) != 0
+ && (old_flags & CSKY_ARCH_MASK) != 0)
+ {
+ new_arch = csky_find_arch_with_eflag (new_flags & CSKY_ARCH_MASK);
+ old_arch = csky_find_arch_with_eflag (old_flags & CSKY_ARCH_MASK);
+ /* Collect flags like e, f, g. */
+ newest_flag = (old_flags & (~CSKY_ARCH_MASK))
+ | (new_flags & (~CSKY_ARCH_MASK));
+ if (new_arch != NULL && old_arch != NULL)
+ {
+ if (new_arch->class != old_arch->class)
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: machine flag conflict with target"), ibfd);
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+ else if (new_arch->class_level != old_arch->class_level)
+ {
+ csky_arch_for_merge *newest_arch
+ = (new_arch->class_level > old_arch->class_level
+ ? new_arch : old_arch);
+ if (new_arch->do_warning || old_arch->do_warning)
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("warning: file %pB's arch flag ck%s conflicts with \
+ target ck%s, set target arch flag to ck%s"),
+ ibfd, new_arch->name, old_arch->name,
+ newest_arch->name);
+ bfd_set_error (bfd_error_wrong_format);
+ }
+
+ newest_flag |= newest_arch->arch_eflag;
+ }
+ else
+ newest_flag |= ((new_flags & (CSKY_ARCH_MASK | CSKY_ABI_MASK))
+ | (old_flags
+ & (CSKY_ARCH_MASK | CSKY_ABI_MASK)));
+ }
+ else
+ newest_flag |= ((new_flags & (CSKY_ARCH_MASK | CSKY_ABI_MASK))
+ | (old_flags & (CSKY_ARCH_MASK | CSKY_ABI_MASK)));
+ }
+ else
+ newest_flag |= ((new_flags & (CSKY_ARCH_MASK | CSKY_ABI_MASK))
+ | (old_flags & (CSKY_ARCH_MASK | CSKY_ABI_MASK)));
+
+ elf_elfheader (obfd)->e_flags = newest_flag;
+ }
+ return TRUE;
+}
+
+/* Ignore the discarded relocs in special sections in link time. */
+
+static bfd_boolean
+csky_elf_ignore_discarded_relocs (asection *sec)
+{
+ if (strcmp (sec->name, ".csky_stack_size") == 0)
+ return TRUE;
+ return FALSE;
+}
+
+/* .csky_stack_size are not referenced directly. This pass marks all of
+ them as required. */
+
+static bfd_boolean
+elf32_csky_gc_mark_extra_sections (struct bfd_link_info *info,
+ elf_gc_mark_hook_fn gc_mark_hook ATTRIBUTE_UNUSED)
+{
+ bfd *sub;
+
+ _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
+
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
+ {
+ asection *o;
+
+ for (o = sub->sections; o != NULL; o = o->next)
+ if (strcmp (o->name, ".csky_stack_size") == 0)
+ o->gc_mark = 1;
+ }
+
+ return TRUE;
+}
+
+/* The linker repeatedly calls this function for each input section,
+ in the order that input sections are linked into output sections.
+ Build lists of input sections to determine groupings between which
+ we may insert linker stubs. */
+void
+elf32_csky_next_input_section (struct bfd_link_info *info,
+ asection *isec)
+{
+ struct csky_elf_link_hash_table *htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return;
+ if (isec->output_section->index <= htab->top_index)
+ {
+ asection **list = htab->input_list + isec->output_section->index;
+
+ if (*list != bfd_abs_section_ptr)
+ {
+ /* Steal the link_sec pointer for our list. */
+#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
+ /* This happens to make the list in reverse order,
+ which we reverse later in group_sections. */
+ PREV_SEC (isec) = *list;
+ *list = isec;
+ }
+ }
+}
+
+/* See whether we can group stub sections together. Grouping stub
+ * sections may result in fewer stubs. More importantly, we need to
+ * put all .init* and .fini* stubs at the end of the .init or
+ * .fini output sections respectively, because glibc splits the
+ * _init and _fini functions into multiple parts. Putting a stub in
+ * the middle of a function is not a good idea. */
+static void
+group_sections (struct csky_elf_link_hash_table *htab,
+ bfd_size_type stub_group_size,
+ bfd_boolean stubs_always_after_branch)
+{
+ asection **list = htab->input_list;
+
+ do
+ {
+ asection *tail = *list;
+ asection *head;
+
+ if (tail == bfd_abs_section_ptr)
+ continue;
+
+ /* Reverse the list: we must avoid placing stubs at the
+ * beginning of the section because the beginning of the text
+ * section may be required for an interrupt vector in bare metal
+ * code. */
+#define NEXT_SEC PREV_SEC
+ head = NULL;
+ while (tail != NULL)
+ {
+ /* Pop from tail. */
+ asection *item = tail;
+ tail = PREV_SEC (item);
+
+ /* Push on head. */
+ NEXT_SEC (item) = head;
+ head = item;
+ }
+
+ while (head != NULL)
+ {
+ asection *curr;
+ asection *next;
+ bfd_vma stub_group_start = head->output_offset;
+ bfd_vma end_of_next;
+
+ curr = head;
+ while (NEXT_SEC (curr) != NULL)
+ {
+ next = NEXT_SEC (curr);
+ end_of_next = next->output_offset + next->size;
+ if (end_of_next - stub_group_start >= stub_group_size)
+ /* End of NEXT is too far from start, so stop. */
+ break;
+ curr = next;
+ }
+
+ /* OK, the size from the start to the start of CURR is less
+ * than stub_group_size and thus can be handled by one stub
+ * section. (Or the head section is itself larger than
+ * stub_group_size, in which case we may be toast.)
+ * We should really be keeping track of the total size of
+ * stubs added here, as stubs contribute to the final output
+ * section size. */
+ do
+ {
+ next = NEXT_SEC (head);
+ /* Set up this stub group. */
+ htab->stub_group[head->id].link_sec = curr;
+ }
+ while (head != curr && (head = next) != NULL);
+
+ /* But wait, there's more! Input sections up to stub_group_size
+ * bytes after the stub section can be handled by it too. */
+ if (!stubs_always_after_branch)
+ {
+ stub_group_start = curr->output_offset + curr->size;
+
+ while (next != NULL)
+ {
+ end_of_next = next->output_offset + next->size;
+ if (end_of_next - stub_group_start >= stub_group_size)
+ /* End of NEXT is too far from stubs, so stop. */
+ break;
+ /* Add NEXT to the stub group. */
+ head = next;
+ next = NEXT_SEC (head);
+ htab->stub_group[head->id].link_sec = curr;
+ }
+ }
+ head = next;
+ }
+ }
+ while (list++ != htab->input_list + htab->top_index);
+
+ free (htab->input_list);
+#undef PREV_SEC
+#undef NEXT_SEC
+}
+
+/* If the symbol referenced by bsr is defined in shared object file,
+ or it is a weak symbol and we aim to create shared object file,
+ we must create a stub for this bsr. */
+
+static bfd_boolean
+sym_must_create_stub (struct elf_link_hash_entry *h,
+ struct bfd_link_info *info)
+{
+ if (h != NULL
+ && ((h->def_dynamic && !h->def_regular)
+ || (bfd_link_pic (info) && h->root.type == bfd_link_hash_defweak)))
+ return TRUE;
+ else
+ return FALSE;
+}
+
+/* Calculate the template, template size and instruction size for a stub.
+ Return value is the instruction size. */
+static unsigned int
+find_stub_size_and_template (enum elf32_csky_stub_type stub_type,
+ const insn_sequence **stub_template,
+ int *stub_template_size)
+{
+ const insn_sequence *template_sequence = NULL;
+ int template_size = 0;
+ int i;
+ unsigned int size;
+
+ template_sequence = stub_definitions[stub_type].template_sequence;
+ template_size = stub_definitions[stub_type].template_size;
+
+ size = 0;
+ for (i = 0; i < template_size; i++)
+ {
+ switch (template_sequence[i].type)
+ {
+ case INSN16:
+ size += 2;
+ break;
+
+ case INSN32:
+ case DATA_TYPE:
+ size += 4;
+ break;
+
+ default:
+ BFD_FAIL ();
+ return FALSE;
+ }
+ }
+
+ if (stub_template)
+ *stub_template = template_sequence;
+ if (stub_template_size)
+ *stub_template_size = template_size;
+
+ return size;
+}
+
+/* As above, but don't actually build the stub. Just bump offset so
+ we know stub section sizes. */
+
+static bfd_boolean
+csky_size_one_stub (struct bfd_hash_entry *gen_entry,
+ void * in_arg ATTRIBUTE_UNUSED)
+{
+ struct elf32_csky_stub_hash_entry *stub_entry;
+ const insn_sequence *template_sequence = NULL;
+ int template_size = 0;
+ int size = 0;
+
+ /* Massage our args to the form they really have. */
+ stub_entry = (struct elf32_csky_stub_hash_entry *) gen_entry;
+
+ BFD_ASSERT (stub_entry->stub_type > csky_stub_none
+ && stub_entry->stub_type < ARRAY_SIZE (stub_definitions));
+ size = find_stub_size_and_template (stub_entry->stub_type,
+ &template_sequence, &template_size);
+ stub_entry->stub_size = size;
+ stub_entry->stub_template = template_sequence;
+ stub_entry->stub_template_size = template_size;
+
+ size = (size + 7) & ~7;
+ stub_entry->stub_sec->size += size;
+ return TRUE;
+}
+
+/* Add a new stub entry to the stub hash. Not all fields of the new
+ stub entry are initialised. */
+static struct elf32_csky_stub_hash_entry *
+elf32_csky_add_stub (const char *stub_name,
+ asection *section,
+ struct csky_elf_link_hash_table *htab)
+{
+ asection *link_sec;
+ asection *stub_sec;
+ struct elf32_csky_stub_hash_entry *stub_entry;
+
+ stub_sec = elf32_csky_create_or_find_stub_sec (&link_sec, section, htab);
+ if (stub_sec == NULL)
+ return NULL;
+
+ /* Enter this entry into the linker stub hash table. */
+ stub_entry = csky_stub_hash_lookup (&htab->stub_hash_table, stub_name,
+ TRUE, FALSE);
+ if (stub_entry == NULL)
+ {
+ _bfd_error_handler (_("%pB: cannot create stub entry %s"),
+ section->owner, stub_name);
+ return NULL;
+ }
+
+ stub_entry->stub_sec = stub_sec;
+ stub_entry->stub_offset = 0;
+ stub_entry->id_sec = link_sec;
+
+ return stub_entry;
+}
+
+/* Determine and set the size of the stub section for a final link.
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bsr"
+ instruction. */
+
+bfd_boolean
+elf32_csky_size_stubs (bfd *output_bfd,
+ bfd *stub_bfd,
+ struct bfd_link_info *info,
+ bfd_signed_vma group_size,
+ asection *(*add_stub_section) (const char*, asection*),
+ void (*layout_sections_again) (void))
+{
+ bfd_size_type stub_group_size;
+ bfd_boolean stubs_always_after_branch;
+ struct csky_elf_link_hash_table *htab = csky_elf_hash_table (info);
+
+ if (htab == NULL)
+ return FALSE;
+
+ /* Propagate mach to stub bfd, because it may not have been
+ finalized when we created stub_bfd. */
+ bfd_set_arch_mach (stub_bfd, bfd_get_arch (output_bfd),
+ bfd_get_mach (output_bfd));
+
+ /* Stash our params away. */
+ htab->stub_bfd = stub_bfd;
+ htab->add_stub_section = add_stub_section;
+ htab->layout_sections_again = layout_sections_again;
+ stubs_always_after_branch = group_size < 0;
+
+ if (group_size < 0)
+ stub_group_size = -group_size;
+ else
+ stub_group_size = group_size;
+
+ if (stub_group_size == 1)
+ /* The 'bsr' range in abiv2 is +-64MB has to be used as the
+ default maximum size.
+ This value is 128K less than that, which allows for 131072
+ byte stubs. If we exceed that, then we will fail to link.
+ The user will have to relink with an explicit group size
+ option. */
+ stub_group_size = 66977792;
+
+ group_sections (htab, stub_group_size, stubs_always_after_branch);
+
+ while (1)
+ {
+ bfd *input_bfd;
+ unsigned int bfd_indx;
+ asection *stub_sec;
+ bfd_boolean stub_changed = FALSE;
+
+ for (input_bfd = info->input_bfds, bfd_indx = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link.next, bfd_indx++)
+ {
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *section;
+ Elf_Internal_Sym *local_syms = NULL;
+
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ /* Walk over each section attached to the input bfd. */
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
+
+ /* If there aren't any relocs, then there's nothing more
+ * to do. */
+ if ((section->flags & SEC_RELOC) == 0
+ || section->reloc_count == 0
+ || (section->flags & SEC_CODE) == 0)
+ continue;
+
+ /* If this section is a link-once section that will be
+ discarded, then don't create any stubs. */
+ if (section->output_section == NULL
+ || section->output_section->owner != output_bfd)
+ continue;
+
+ /* Get the relocs. */
+ internal_relocs = _bfd_elf_link_read_relocs (input_bfd,
+ section,
+ NULL, NULL,
+ info->keep_memory);
+
+ if (internal_relocs == NULL)
+ goto error_ret_free_local;
+
+ /* Now examine each relocation. */
+ irela = internal_relocs;
+ irelaend = irela + section->reloc_count;
+ for (; irela < irelaend; irela++)
+ {
+ unsigned int r_type, r_indx;
+ enum elf32_csky_stub_type stub_type;
+ struct elf32_csky_stub_hash_entry *stub_entry;
+ asection *sym_sec;
+ bfd_vma sym_value;
+ bfd_vma destination;
+ struct csky_elf_link_hash_entry *hash;
+ const char *sym_name;
+ char *stub_name;
+ const asection *id_sec;
+ unsigned char st_type;
+
+ r_type = ELF32_R_TYPE (irela->r_info);
+ r_indx = ELF32_R_SYM (irela->r_info);
+ if (r_type >= (unsigned int) R_CKCORE_MAX)
+ {
+ bfd_set_error (bfd_error_bad_value);
+error_ret_free_internal:
+ if (elf_section_data (section)->relocs == NULL)
+ free (internal_relocs);
+ goto error_ret_free_local;
+ }
+
+ /* Only look for stubs on branch instructions. */
+ if (r_type != (unsigned int) R_CKCORE_PCREL_IMM26BY2)
+ continue;
+ /* Now determine the call target, its name, value,
+ section. */
+ sym_sec = NULL;
+ sym_value = 0;
+ destination = 0;
+ hash = NULL;
+ sym_name = NULL;
+ if (r_indx < symtab_hdr->sh_info)
+ {
+ /* It's a local symbol. */
+ Elf_Internal_Sym *sym;
+ Elf_Internal_Shdr *hdr;
+ if (local_syms == NULL)
+ local_syms =
+ (Elf_Internal_Sym *) symtab_hdr->contents;
+ if (local_syms == NULL)
+ {
+ local_syms =
+ bfd_elf_get_elf_syms (input_bfd,
+ symtab_hdr,
+ symtab_hdr->sh_info,
+ 0, NULL, NULL, NULL);
+ if (local_syms == NULL)
+ goto error_ret_free_internal;
+ }
+ sym = local_syms + r_indx;
+ hdr = elf_elfsections (input_bfd)[sym->st_shndx];
+ sym_sec = hdr->bfd_section;
+ if (!sym_sec)
+ /* This is an undefined symbol. It can never
+ be resolved. */
+ continue;
+ if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
+ sym_value = sym->st_value;
+ destination = (sym_value + irela->r_addend
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ st_type = ELF_ST_TYPE (sym->st_info);
+ sym_name =
+ bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ }
+ else
+ {
+ /* It's an external symbol. */
+ int e_indx;
+ e_indx = r_indx - symtab_hdr->sh_info;
+ hash = ((struct csky_elf_link_hash_entry *)
+ elf_sym_hashes (input_bfd)[e_indx]);
+
+ while (hash->elf.root.type == bfd_link_hash_indirect
+ || hash->elf.root.type == bfd_link_hash_warning)
+ hash = ((struct csky_elf_link_hash_entry *)
+ hash->elf.root.u.i.link);
+ if (hash->elf.root.type == bfd_link_hash_defined
+ || hash->elf.root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = hash->elf.root.u.def.section;
+ sym_value = hash->elf.root.u.def.value;
+
+ struct csky_elf_link_hash_table *globals =
+ csky_elf_hash_table (info);
+ /* FIXME For a destination in a shared library. */
+ if (globals->elf.splt != NULL && hash != NULL
+ && hash->elf.plt.offset != (bfd_vma) -1)
+ continue;
+ else if (sym_sec->output_section != NULL)
+ destination = (sym_value + irela->r_addend
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (hash->elf.root.type == bfd_link_hash_undefined
+ || (hash->elf.root.type
+ == bfd_link_hash_undefweak))
+ /* FIXME For a destination in a shared library. */
+ continue;
+ else
+ {
+ bfd_set_error (bfd_error_bad_value);
+ goto error_ret_free_internal;
+ }
+ st_type = ELF_ST_TYPE (hash->elf.type);
+ sym_name = hash->elf.root.root.string;
+ }
+ do
+ {
+ /* Determine what (if any) linker stub is needed. */
+ stub_type = csky_type_of_stub (info, section, irela,
+ st_type, hash,
+ destination, sym_sec,
+ input_bfd, sym_name);
+ if (stub_type == csky_stub_none)
+ break;
+
+ /* Support for grouping stub sections. */
+ id_sec = htab->stub_group[section->id].link_sec;
+
+ /* Get the name of this stub. */
+ stub_name = elf32_csky_stub_name (id_sec, sym_sec, hash,
+ irela);
+ if (!stub_name)
+ goto error_ret_free_internal;
+ /* We've either created a stub for this reloc already,
+ or we are about to. */
+ stub_entry
+ = csky_stub_hash_lookup (&htab->stub_hash_table,
+ stub_name,
+ FALSE, FALSE);
+ if (stub_entry != NULL)
+ {
+ /* The proper stub has already been created. */
+ free (stub_name);
+ stub_entry->target_value = sym_value;
+ break;
+ }
+ stub_entry = elf32_csky_add_stub (stub_name, section,
+ htab);
+ if (stub_entry == NULL)
+ {
+ free (stub_name);
+ goto error_ret_free_internal;
+ }
+ stub_entry->target_value = sym_value;
+ stub_entry->target_section = sym_sec;
+ stub_entry->stub_type = stub_type;
+ stub_entry->h = hash;
+ stub_entry->st_type = st_type;
+
+ if (sym_name == NULL)
+ sym_name = "unnamed";
+ stub_entry->output_name =
+ bfd_alloc (htab->stub_bfd,
+ (sizeof (STUB_ENTRY_NAME)
+ + strlen (sym_name)));
+ if (stub_entry->output_name == NULL)
+ {
+ free (stub_name);
+ goto error_ret_free_internal;
+ }
+ sprintf (stub_entry->output_name, STUB_ENTRY_NAME,
+ sym_name);
+ stub_changed = TRUE;
+ }
+ while (0);
+ }
+ /* We're done with the internal relocs, free them. */
+ if (elf_section_data (section)->relocs == NULL)
+ free (internal_relocs);
+ }
+ }
+ if (!stub_changed)
+ break;
+ /* OK, we've added some stubs. Find out the new size of the
+ stub sections. */
+ for (stub_sec = htab->stub_bfd->sections;
+ stub_sec != NULL;
+ stub_sec = stub_sec->next)
+ {
+ /* Ignore non-stub sections. */
+ if (!strstr (stub_sec->name, STUB_SUFFIX))
+ continue;
+ stub_sec->size = 0;
+ }
+ bfd_hash_traverse (&htab->stub_hash_table, csky_size_one_stub, htab);
+ /* Ask the linker to do its stuff. */
+ (*htab->layout_sections_again) ();
+ }
+
+ return TRUE;
+error_ret_free_local:
+ return FALSE;
+}
+
+static bfd_boolean
+csky_build_one_stub (struct bfd_hash_entry *gen_entry,
+ void * in_arg)
+{
+#define MAXRELOCS 2
+ struct elf32_csky_stub_hash_entry *stub_entry;
+ struct bfd_link_info *info;
+ asection *stub_sec;
+ bfd *stub_bfd;
+ bfd_byte *loc;
+ bfd_vma sym_value;
+ int template_size;
+ int size;
+ const insn_sequence *template_sequence;
+ int i;
+ struct csky_elf_link_hash_table * globals;
+ int stub_reloc_idx[MAXRELOCS] = {-1, -1};
+ int stub_reloc_offset[MAXRELOCS] = {0, 0};
+ int nrelocs = 0;
+ struct elf_link_hash_entry *h = NULL;
+
+ /* Massage our args to the form they really have. */
+ stub_entry = (struct elf32_csky_stub_hash_entry *)gen_entry;
+ info = (struct bfd_link_info *) in_arg;
+
+ globals = csky_elf_hash_table (info);
+ if (globals == NULL)
+ return FALSE;
+ stub_sec = stub_entry->stub_sec;
+
+ /* Make a note of the offset within the stubs for this entry. */
+ stub_entry->stub_offset = stub_sec->size;
+ loc = stub_sec->contents + stub_entry->stub_offset;
+
+ stub_bfd = stub_sec->owner;
+
+ /* This is the address of the stub destination. */
+ h = &stub_entry->h->elf;
+ if (sym_must_create_stub (h, info)
+ && !(bfd_link_pic (info)
+ && h->root.type == bfd_link_hash_defweak
+ && h->def_regular
+ && !h->def_dynamic))
+ sym_value = 0;
+ else
+ sym_value = (stub_entry->target_value
+ + stub_entry->target_section->output_offset
+ + stub_entry->target_section->output_section->vma);
+
+ template_sequence = stub_entry->stub_template;
+ template_size = stub_entry->stub_template_size;
+
+ size = 0;
+ for (i = 0; i < template_size; i++)
+ switch (template_sequence[i].type)
+ {
+ case INSN16:
+ bfd_put_16 (stub_bfd, (bfd_vma) template_sequence[i].data,
+ loc + size);
+ size += 2;
+ break;
+ case INSN32:
+ csky_put_insn_32 (stub_bfd, (bfd_vma) template_sequence[i].data,
+ loc + size);
+ size += 4;
+ break;
+ case DATA_TYPE:
+ bfd_put_32 (stub_bfd, (bfd_vma) template_sequence[i].data,
+ loc + size);
+ stub_reloc_idx[nrelocs] = i;
+ stub_reloc_offset[nrelocs++] = size;
+ size += 4;
+ break;
+ default:
+ BFD_FAIL ();
+ return FALSE;
+ }
+ stub_sec->size += size;
+
+ /* Stub size has already been computed in csky_size_one_stub. Check
+ consistency. */
+ BFD_ASSERT (size == stub_entry->stub_size);
+
+ /* Assume there is at least one and at most MAXRELOCS entries to relocate
+ in each stub. */
+ BFD_ASSERT (nrelocs != 0 && nrelocs <= MAXRELOCS);
+
+ for (i = 0; i < nrelocs; i++)
+ {
+ if (sym_must_create_stub (h, info))
+ {
+ Elf_Internal_Rela outrel;
+ asection * sreloc = globals->elf.srelgot;
+
+ outrel.r_offset = stub_entry->stub_offset + stub_reloc_offset[i];
+ outrel.r_info =
+ ELF32_R_INFO (h->dynindx,
+ template_sequence[stub_reloc_idx[i]].r_type);
+ outrel.r_addend = template_sequence[stub_reloc_idx[i]].reloc_addend;
+
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
+
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (info->output_bfd, &outrel, loc);
+ }
+ _bfd_final_link_relocate (elf32_csky_howto_from_type
+ (template_sequence[stub_reloc_idx[i]].r_type),
+ stub_bfd, stub_sec, stub_sec->contents,
+ stub_entry->stub_offset + stub_reloc_offset[i],
+ sym_value + stub_entry->target_addend,
+ template_sequence[stub_reloc_idx[i]].reloc_addend);
+ }
+
+ return TRUE;
+#undef MAXRELOCS
+}
+
+/* Build all the stubs associated with the current output file. The
+ stubs are kept in a hash table attached to the main linker hash
+ table. We also set up the .plt entries for statically linked PIC
+ functions here. This function is called via arm_elf_finish in the
+ linker. */
+
+bfd_boolean
+elf32_csky_build_stubs (struct bfd_link_info *info)
+{
+ asection *stub_sec;
+ struct bfd_hash_table *table;
+ struct csky_elf_link_hash_table *htab;
+
+ htab = csky_elf_hash_table (info);
+
+ if (htab == NULL)
+ return FALSE;
+
+ for (stub_sec = htab->stub_bfd->sections;
+ stub_sec != NULL;
+ stub_sec = stub_sec->next)
+ {
+ bfd_size_type size;
+
+ /* Ignore non-stub sections. */
+ if (!strstr (stub_sec->name, STUB_SUFFIX))
+ continue;
+
+ /* Allocate memory to hold the linker stubs. */
+ size = stub_sec->size;
+ stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
+ if (stub_sec->contents == NULL && size != 0)
+ return FALSE;
+ stub_sec->size = 0;
+ }
+
+ /* Build the stubs as directed by the stub hash table. */
+ table = &htab->stub_hash_table;
+ bfd_hash_traverse (table, csky_build_one_stub, info);
+
+ return TRUE;
+}
+
+/* Set up various things so that we can make a list of input sections
+ for each output section included in the link. Returns -1 on error,
+ 0 when no stubs will be needed, and 1 on success. */
+int elf32_csky_setup_section_lists (bfd *output_bfd,
+ struct bfd_link_info *info)
+{
+ bfd *input_bfd;
+ unsigned int bfd_count;
+ unsigned int top_id, top_index;
+ asection *section;
+ asection **input_list, **list;
+ bfd_size_type amt;
+ struct csky_elf_link_hash_table *htab = csky_elf_hash_table (info);
+
+ if (!htab)
+ return 0;
+ if (! is_elf_hash_table (htab))
+ return 0;
+
+ /* Count the number of input BFDs and find the top input section id. */
+ for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link.next)
+ {
+ bfd_count += 1;
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ if (top_id < section->id)
+ top_id = section->id;
+ }
+ htab->bfd_count = bfd_count;
+ amt = sizeof (struct map_stub) * (top_id + 1);
+ htab->stub_group = bfd_zmalloc (amt);
+ if (htab->stub_group == NULL)
+ return -1;
+
+ /* We can't use output_bfd->section_count here to find the top output
+ section index as some sections may have been removed, and
+ _bfd_strip_section_from_output doesn't renumber the indices. */
+ for (section = output_bfd->sections, top_index = 0;
+ section != NULL;
+ section = section->next)
+ if (top_index < section->index)
+ top_index = section->index;
+ htab->top_index = top_index;
+ amt = sizeof (asection *) * (top_index + 1);
+ input_list = bfd_malloc (amt);
+ htab->input_list = input_list;
+ if (input_list == NULL)
+ return -1;
+ /* For sections we aren't interested in, mark their entries with a
+ value we can check later. */
+ list = input_list + top_index;
+ do
+ *list = bfd_abs_section_ptr;
+ while (list-- != input_list);
+ for (section = output_bfd->sections;
+ section != NULL;
+ section = section->next)
+ if ((section->flags & SEC_CODE) != 0)
+ input_list[section->index] = NULL;
+
+ return 1;
+}
+
+static bfd_reloc_status_type
+csky_relocate_contents (reloc_howto_type *howto,
+ bfd *input_bfd,
+ long relocation,
+ bfd_byte *location)
+{
+ int size;
+ bfd_vma x = 0;
+ bfd_reloc_status_type flag;
+ unsigned int rightshift = howto->rightshift;
+ unsigned int bitpos = howto->bitpos;
+
+ /* If the size is negative, negate RELOCATION. This isn't very
+ general. */
+ if (howto->size < 0)
+ relocation = -relocation;
+
+ /* FIXME: these macros should be defined at file head or head file head. */
+#define CSKY_INSN_ADDI_TO_SUBI 0x04000000
+#define CSKY_INSN_MOV_RTB 0xc41d4820 // mov32 rx, r29, 0
+#define CSKY_INSN_MOV_RDB 0xc41c4820 // mov32 rx, r28, 0
+#define CSKY_INSN_GET_ADDI_RZ(x) (((x) & 0x03e00000) >> 21)
+#define CSKY_INSN_SET_MOV_RZ(x) ((x) & 0x0000001f)
+#define CSKY_INSN_JSRI_TO_LRW 0xea9a0000
+#define CSKY_INSN_JSR_R26 0xe8fa0000
+
+ /* Get the value we are going to relocate. */
+ size = bfd_get_reloc_size (howto);
+ switch (size)
+ {
+ default:
+ case 0:
+ abort ();
+ case 1:
+ x = bfd_get_8 (input_bfd, location);
+ break;
+ case 2:
+ x = bfd_get_16 (input_bfd, location);
+ break;
+ case 4:
+ if (need_reverse_bits)
+ {
+ x = csky_get_insn_32 (input_bfd, location);
+
+ if (R_CKCORE_DOFFSET_LO16 == howto->type)
+ {
+ if ((signed) relocation < 0)
+ {
+ x |= CSKY_INSN_ADDI_TO_SUBI;
+ relocation = -relocation;
+ }
+ else if (0 == relocation)
+ x = (CSKY_INSN_MOV_RDB |
+ CSKY_INSN_SET_MOV_RZ (CSKY_INSN_GET_ADDI_RZ (x)));
+ }
+ else if (R_CKCORE_TOFFSET_LO16 == howto->type)
+ {
+ if ((signed) relocation < 0)
+ {
+ x |= CSKY_INSN_ADDI_TO_SUBI;
+ relocation = -relocation;
+ }
+ else if (0 == relocation)
+ x = (CSKY_INSN_MOV_RTB |
+ CSKY_INSN_SET_MOV_RZ (CSKY_INSN_GET_ADDI_RZ (x)));
+ }
+ }
+ else
+ x = bfd_get_32 (input_bfd, location);
+ break;
+ }
+ /* Check for overflow. FIXME: We may drop bits during the addition
+ which we don't check for. We must either check at every single
+ operation, which would be tedious, or we must do the computations
+ in a type larger than bfd_vma, which would be inefficient. */
+ flag = bfd_reloc_ok;
+ if (howto->complain_on_overflow != complain_overflow_dont)
+ {
+ int addrmask;
+ int fieldmask;
+ int signmask;
+ int ss;
+ int a;
+ int b;
+ int sum;
+ /* Get the values to be added together. For signed and unsigned
+ relocations, we assume that all values should be truncated to
+ the size of an address. For bitfields, all the bits matter.
+ See also bfd_check_overflow. */
+#define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
+ fieldmask = N_ONES (howto->bitsize);
+ signmask = ~fieldmask;
+ addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
+ a = (relocation & addrmask) >> rightshift;
+ if (read_content_substitute)
+ x = read_content_substitute;
+ b = (x & howto->src_mask & addrmask) >> bitpos;
+
+ switch (howto->complain_on_overflow)
+ {
+ case complain_overflow_signed:
+ /* If any sign bits are set, all sign bits must be set.
+ That is, A must be a valid negative address after
+ shifting. */
+ signmask = ~(fieldmask >> 1);
+
+ case complain_overflow_bitfield:
+ /* Much like the signed check, but for a field one bit
+ wider. We allow a bitfield to represent numbers in the
+ range -2**n to 2**n-1, where n is the number of bits in the
+ field. Note that when bfd_vma is 32 bits, a 32-bit reloc
+ can't overflow, which is exactly what we want. */
+ ss = a & signmask;
+ if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
+ flag = bfd_reloc_overflow;
+ /* We only need this next bit of code if the sign bit of B
+ is below the sign bit of A. This would only happen if
+ SRC_MASK had fewer bits than BITSIZE. Note that if
+ SRC_MASK has more bits than BITSIZE, we can get into
+ trouble; we would need to verify that B is in range, as
+ we do for A above. */
+ ss = ((~howto->src_mask) >> 1) & howto->src_mask;
+ ss >>= bitpos;
+
+ /* Set all the bits above the sign bit. */
+ b = (b ^ ss) - ss;
+
+ /* Now we can do the addition. */
+ sum = a + b;
+
+ /* See if the result has the correct sign. Bits above the
+ sign bit are junk now; ignore them. If the sum is
+ positive, make sure we did not have all negative inputs;
+ if the sum is negative, make sure we did not have all
+ positive inputs. The test below looks only at the sign
+ bits, and it really just
+ SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
+
+ We mask with addrmask here to explicitly allow an address
+ wrap-around. The Linux kernel relies on it, and it is
+ the only way to write assembler code which can run when
+ loaded at a location 0x80000000 away from the location at
+ which it is linked. */
+
+ if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask)
+ flag = bfd_reloc_overflow;
+ break;
+ case complain_overflow_unsigned:
+ /* Checking for an unsigned overflow is relatively easy:
+ trim the addresses and add, and trim the result as well.
+ Overflow is normally indicated when the result does not
+ fit in the field. However, we also need to consider the
+ case when, e.g., fieldmask is 0x7fffffff or smaller, an
+ input is 0x80000000, and bfd_vma is only 32 bits; then we
+ will get sum == 0, but there is an overflow, since the
+ inputs did not fit in the field. Instead of doing a
+ separate test, we can check for this by or-ing in the
+ operands when testing for the sum overflowing its final
+ field. */
+ sum = (a + b) & addrmask;
+ if ((a | b | sum) & signmask)
+ flag = bfd_reloc_overflow;
+ break;
+ default:
+ abort ();
+ }
+
+ }
+ /* Put RELOCATION in the right bits. */
+ relocation >>= (bfd_vma) rightshift;
+
+ if ((howto->type == R_CKCORE_DOFFSET_LO16
+ || howto->type == R_CKCORE_TOFFSET_LO16)
+ && relocation == 0)
+ /* Do nothing lsli32 rx, rz, 0. */
+ ;
+ else
+ {
+ /* Fir V1, all this relocation must be x -1. */
+ if (howto->type == R_CKCORE_PCREL_IMM11BY2
+ || howto->type == R_CKCORE_PCREL_JSR_IMM11BY2
+ || howto->type == R_CKCORE_DOFFSET_LO16
+ || howto->type == R_CKCORE_TOFFSET_LO16)
+ relocation -= 1;
+ else if (howto->type == R_CKCORE_PCREL_IMM7BY4)
+ relocation = (relocation & 0x1f) + ((relocation << 3) & 0x300);
+ else if (howto->type == R_CKCORE_PCREL_FLRW_IMM8BY4)
+ relocation
+ = ((relocation << 4) & 0xf0) + ((relocation << 17) & 0x1e00000);
+ else if (howto->type == R_CKCORE_NOJSRI)
+ {
+ x = (x & howto->dst_mask) | CSKY_INSN_JSRI_TO_LRW;
+ relocation = 0;
+ csky_put_insn_32 (input_bfd, CSKY_INSN_JSR_R26, location + 4);
+ }
+
+ relocation <<= (bfd_vma) bitpos;
+ /* Add RELOCATION to the right bits of X. */
+ x = ((x & ~howto->dst_mask)
+ | (((x & howto->src_mask) + relocation) & howto->dst_mask));
+ }
+ /* Put the relocated value back in the object file. */
+ switch (size)
+ {
+ default:
+ abort ();
+ case 1:
+ bfd_put_8 (input_bfd, x, location);
+ break;
+ case 2:
+ bfd_put_16 (input_bfd, x, location);
+ break;
+ case 4:
+ if (need_reverse_bits)
+ csky_put_insn_32 (input_bfd, x, location);
+ else
+ bfd_put_32 (input_bfd, x, location);
+ break;
+ }
+ return flag;
+}
+
+/* Look up an entry in the stub hash. Stub entries are cached because
+ creating the stub name takes a bit of time. */
+static struct elf32_csky_stub_hash_entry *
+elf32_csky_get_stub_entry (const asection *input_section,
+ const asection *sym_sec,
+ struct elf_link_hash_entry *hash,
+ const Elf_Internal_Rela *rel,
+ struct csky_elf_link_hash_table *htab)
+{
+ struct elf32_csky_stub_hash_entry *stub_entry;
+ struct csky_elf_link_hash_entry *h
+ = (struct csky_elf_link_hash_entry *) hash;
+ const asection *id_sec;
+
+ if ((input_section->flags & SEC_CODE) == 0)
+ return NULL;
+
+ /* If this input section is part of a group of sections sharing one
+ stub section, then use the id of the first section in the group.
+ Stub names need to include a section id, as there may well be
+ more than one stub used to reach say, printf, and we need to
+ distinguish between them. */
+ id_sec = htab->stub_group[input_section->id].link_sec;
+ if (h != NULL && h->stub_cache != NULL
+ && h->stub_cache->h == h && h->stub_cache->id_sec == id_sec)
+ stub_entry = h->stub_cache;
+ else
+ {
+ char *stub_name;
+ stub_name = elf32_csky_stub_name (id_sec, sym_sec, h, rel);
+ if (stub_name == NULL)
+ return NULL;
+ stub_entry = csky_stub_hash_lookup (&htab->stub_hash_table,
+ stub_name, FALSE, FALSE);
+ if (h != NULL)
+ h->stub_cache = stub_entry;
+ free (stub_name);
+ }
+
+ return stub_entry;
+}
+
+static bfd_reloc_status_type
+csky_final_link_relocate (reloc_howto_type *howto,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ bfd_vma address,
+ bfd_vma value,
+ bfd_vma addend)
+{
+ bfd_vma relocation;
+
+ /* Sanity check the address. */
+ if (address > bfd_get_section_limit (input_bfd, input_section))
+ return bfd_reloc_outofrange;
+
+ /* This function assumes that we are dealing with a basic relocation
+ against a symbol. We want to compute the value of the symbol to
+ relocate to. This is just VALUE, the value of the symbol,
+ plus ADDEND, any addend associated with the reloc. */
+ relocation = value + addend;
+
+ /* If the relocation is PC relative, we want to set RELOCATION to
+ the distance between the symbol (currently in RELOCATION) and the
+ location we are relocating. Some targets (e.g., i386-aout)
+ arrange for the contents of the section to be the negative of the
+ offset of the location within the section; for such targets
+ pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
+ simply leave the contents of the section as zero; for such
+ targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
+ need to subtract out the offset of the location within the
+ section (which is just ADDRESS). */
+ if (howto->pc_relative)
+ {
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
+ if (howto->pcrel_offset)
+ relocation -= address;
+ }
+
+ return csky_relocate_contents (howto, input_bfd, relocation,
+ contents + address);
+
+}
+
+/* Return the base VMA address which should be subtracted from real addresses
+ when resolving @dtpoff relocation.
+ This is PT_TLS segment p_vaddr. */
+
+static bfd_vma
+dtpoff_base (struct bfd_link_info *info)
+{
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (elf_hash_table (info)->tls_sec == NULL)
+ return 0;
+ return elf_hash_table (info)->tls_sec->vma;
+}
+
+/* Return the relocation value for @tpoff relocation
+ if STT_TLS virtual address is ADDRESS. */
+
+static bfd_vma
+tpoff (struct bfd_link_info *info, bfd_vma address)
+{
+ struct elf_link_hash_table *htab = elf_hash_table (info);
+ bfd_vma base;
+
+ /* If tls_sec is NULL, we should have signalled an error already. */
+ if (htab->tls_sec == NULL)
+ return 0;
+ base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power);
+ return address - htab->tls_sec->vma + base;
+}
+
+/* Relocate a csky section. */
+
+static bfd_boolean
+csky_elf_relocate_section (bfd * output_bfd,
+ struct bfd_link_info * info,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
+ Elf_Internal_Rela * relocs,
+ Elf_Internal_Sym * local_syms,
+ asection ** local_sections)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+ const char *name;
+ bfd_boolean ret = TRUE;
+ struct csky_elf_link_hash_table * htab;
+ bfd_vma *local_got_offsets = elf_local_got_offsets (input_bfd);
+
+ htab = csky_elf_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
+ symtab_hdr = & elf_symtab_hdr (input_bfd);
+ sym_hashes = elf_sym_hashes (input_bfd);
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ enum elf_csky_reloc_type r_type
+ = (enum elf_csky_reloc_type) ELF32_R_TYPE (rel->r_info);
+ unsigned long r_symndx;
+ reloc_howto_type * howto;
+ Elf_Internal_Sym * sym;
+ asection * sec;
+ bfd_vma relocation;
+ bfd_vma off;
+ struct elf_link_hash_entry * h;
+ bfd_vma addend = (bfd_vma)rel->r_addend;
+ bfd_reloc_status_type r = bfd_reloc_ok;
+ bfd_boolean unresolved_reloc = FALSE;
+ int do_final_relocate = TRUE;
+ bfd_signed_vma disp;
+
+ /* Ignore these relocation types:
+ R_CKCORE_GNU_VTINHERIT, R_CKCORE_GNU_VTENTRY. */
+ if (r_type == R_CKCORE_GNU_VTINHERIT || r_type == R_CKCORE_GNU_VTENTRY)
+ continue;
+
+ if ((unsigned) r_type >= (unsigned) R_CKCORE_MAX)
+ {
+ /* The r_type is error, not support it. */
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: Unknown relocation type %ud\n"),
+ input_bfd, (unsigned) r_type);
+ bfd_set_error (bfd_error_bad_value);
+ ret = FALSE;
+ continue;
+ }
+
+ howto = &csky_elf_howto_table[(int) r_type];
+
+ r_symndx = ELF32_R_SYM(rel->r_info);
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+ unresolved_reloc = FALSE;
+
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ /* Get symbol table entry. */
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ addend = (bfd_vma)rel->r_addend;
+ }
+ else
+ {
+ bfd_boolean warned, ignored;
+
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned, ignored);
+ }
+
+ if (sec != NULL && discarded_section (sec))
+ {
+ /* For relocs against symbols from removed linkonce sections,
+ or sections discarded by a linker script, we just want the
+ section contents zeroed. Avoid any special processing.
+ And if the symbol is referenced in '.csky_stack_size' section,
+ set the address to SEC_DISCARDED(0xffffffff). */
+#if 0
+ /* The .csky_stack_size section is just for callgraph. */
+ if (strcmp (input_section->name, ".csky_stack_size") == 0)
+ {
+/* FIXME: it should define in head file. */
+#define SEC_DISCARDED 0xffffffff
+ bfd_put_32 (input_bfd, SEC_DISCARDED, contents + rel->r_offset);
+ rel->r_info = 0;
+ rel->r_addend = 0;
+ continue;
+ }
+ else
+#endif
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0,
+ contents);
+ }
+
+ if (bfd_link_relocatable (info))
+ continue;
+
+ read_content_substitute = 0;
+
+ /* Final link. */
+ disp = (relocation
+ + (bfd_signed_vma) addend
+ - input_section->output_section->vma
+ - input_section->output_offset
+ - rel->r_offset);
+/* It is for ck8xx. */
+#define CSKY_INSN_BSR32 0xe0000000
+/* It is for ck5xx/ck6xx. */
+#define CSKY_INSN_BSR16 0xf800
+#define within_range(x, L) (-(1 << (L - 1)) < (x) && (x) < (1 << (L -1)) - 2)
+ switch (howto->type)
+ {
+ case R_CKCORE_PCREL_IMM18BY2:
+ /* When h is NULL, means the instruction written as
+ grs rx, imm32
+ if the highest bit is set, prevent the high 32bits
+ turn to 0xffffffff when signed extern in 64bit
+ host machine. */
+ if (h == NULL && (addend & 0x80000000))
+ addend &= 0xffffffff;
+ break;
+ case R_CKCORE_GOT12:
+ case R_CKCORE_PLT12:
+ case R_CKCORE_GOT_HI16:
+ case R_CKCORE_GOT_LO16:
+ case R_CKCORE_PLT_HI16:
+ case R_CKCORE_PLT_LO16:
+ case R_CKCORE_GOT32:
+ case R_CKCORE_GOT_IMM18BY4:
+ /* Relocation is to the entry for this symbol in the global
+ offset table. */
+ BFD_ASSERT (htab->elf.sgot != NULL);
+ if (h != NULL)
+ {
+ /* Global symbol is defined by other modules. */
+ bfd_boolean dyn;
+ off = h->got.offset;
+ dyn = htab->elf.dynamic_sections_created;
+ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
+ bfd_link_pic (info), h)
+ || (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info,h))
+ || (ELF_ST_VISIBILITY(h->other)
+ && h->root.type == bfd_link_hash_undefweak))
+ {
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or the symbol was forced to be local
+ because of a version file. We must initialize
+ this entry in the global offset table. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialized it already.
+ When doing a dynamic link, we create a .rela.dyn
+ relocation entry to initialize the value. This
+ is done in the finish_dynamic_symbol routine. FIXME */
+ if (off & 1)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ htab->elf.sgot->contents + off);
+ h->got.offset |= 1;
+ }
+ }
+ else
+ unresolved_reloc = FALSE;
+ } /* End if h != NULL. */
+ else
+ {
+ BFD_ASSERT (local_got_offsets != NULL);
+ off = local_got_offsets[r_symndx];
+
+ /* The offset must always be a multiple of 4. We use
+ the least significant bit to record whether we have
+ already generated the necessary reloc. */
+ if (off & 1)
+ off &= ~1;
+ else
+ {
+ bfd_put_32 (output_bfd, relocation,
+ htab->elf.sgot->contents + off);
+ if (bfd_link_pic (info))
+ {
+ asection *srelgot;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+
+ srelgot = htab->elf.srelgot;
+ BFD_ASSERT (srelgot != NULL);
+
+ outrel.r_offset
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset + off);
+ outrel.r_info = ELF32_R_INFO (0, R_CKCORE_RELATIVE);
+ outrel.r_addend = relocation;
+ loc = srelgot->contents;
+ loc += (srelgot->reloc_count++
+ * sizeof (Elf32_External_Rela));
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ local_got_offsets[r_symndx] |= 1;
+ }
+ }
+ relocation = htab->elf.sgot->output_offset + off;
+ break;
+
+ case R_CKCORE_GOTOFF_IMM18:
+ case R_CKCORE_GOTOFF:
+ case R_CKCORE_GOTOFF_HI16:
+ case R_CKCORE_GOTOFF_LO16:
+ /* Relocation is relative to the start of the global offset
+ table. */
+ /* Note that sgot->output_offset is not involved in this
+ calculation. We always want the start of .got. If we
+ defined _GLOBAL_OFFSET_TABLE in a different way, as is
+ permitted by the ABI, we might have to change this
+ calculation. */
+ relocation -= htab->elf.sgot->output_section->vma;
+ break;
+
+ case R_CKCORE_GOTPC:
+ case R_CKCORE_GOTPC_HI16:
+ case R_CKCORE_GOTPC_LO16:
+ /* Use global offset table as symbol value. */
+ relocation = htab->elf.sgot->output_section->vma;
+ addend = -addend;
+ unresolved_reloc = FALSE;
+ break;
+
+ case R_CKCORE_DOFFSET_IMM18:
+ case R_CKCORE_DOFFSET_IMM18BY2:
+ case R_CKCORE_DOFFSET_IMM18BY4:
+ {
+ asection *sdata = bfd_get_section_by_name (output_bfd, ".data");
+ relocation -= sdata->output_section->vma;
+ }
+ break;
+
+ case R_CKCORE_DOFFSET_LO16:
+ {
+ asection *sdata = bfd_get_section_by_name (output_bfd, ".data");
+ relocation -= sdata->output_section->vma;
+ }
+ break;
+
+ case R_CKCORE_TOFFSET_LO16:
+ {
+ asection *stext = bfd_get_section_by_name (output_bfd, ".text");
+ if (stext)
+ relocation -= stext->output_section->vma;
+ }
+ break;
+
+ case R_CKCORE_PLT_IMM18BY4:
+ case R_CKCORE_PLT32:
+ /* Relocation is to the entry for this symbol in the
+ procedure linkage table. */
+
+ /* Resolve a PLT32 reloc against a local symbol directly,
+ without using the procedure linkage table. */
+ if (h == NULL)
+ break;
+
+ if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
+ {
+ /* We didn't make a PLT entry for this symbol. This
+ happens when statically linking PIC code, or when
+ using -Bsymbolic. */
+ if (h->got.offset != (bfd_vma) -1)
+ {
+ bfd_boolean dyn;
+
+ off = h->got.offset;
+ dyn = htab->elf.dynamic_sections_created;
+ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
+ bfd_link_pic (info), h)
+ || (bfd_link_pic (info)
+ && SYMBOL_REFERENCES_LOCAL (info, h))
+ || (ELF_ST_VISIBILITY (h->other)
+ && h->root.type == bfd_link_hash_undefweak))
+ {
+ /* This is actually a static link, or it is a
+ -Bsymbolic link and the symbol is defined
+ locally, or the symbol was forced to be local
+ because of a version file. We must initialize
+ this entry in the global offset table. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialized it already.
+
+ When doing a dynamic link, we create a .rela.dyn
+ relocation entry to initialize the value. This
+ is done in the finish_dynamic_symbol routine.
+ FIXME! */
+ if (off & 1)
+ off &= ~1;
+ else
+ h->got.offset |= 1;
+ }
+ bfd_put_32 (output_bfd, relocation,
+ htab->elf.sgot->contents + off);
+
+ relocation = off + htab->elf.sgot->output_offset;
+ }
+ break;
+ }
+ /* The reloction is the got offset. */
+ if (bfd_csky_abi (output_bfd) == CSKY_ABI_V2)
+ relocation = (h->plt.offset / PLT_ENTRY_SIZE + 2) * 4;
+ else
+ relocation = (h->plt.offset / PLT_ENTRY_SIZE_P + 2) * 4;
+ unresolved_reloc = FALSE;
+ break;
+
+ case R_CKCORE_PCREL_IMM26BY2:
+ case R_CKCORE_PCREL_JSR_IMM26BY2:
+ case R_CKCORE_PCREL_JSR_IMM11BY2:
+ case R_CKCORE_PCREL_IMM11BY2:
+ case R_CKCORE_CALLGRAPH:
+ /* Emit callgraph information first. */
+ /* TODO: deal with callgraph. */
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_CALLGRAPH)
+ break;
+ /* Some reloc need further handling. */
+ /* h == NULL means the symbol is a local symbol,
+ r_symndx == 0 means the symbol is 'ABS' and
+ the relocation is already handled in assemble,
+ here just use for callgraph. */
+ /* TODO: deal with callgraph. */
+ if (h == NULL && r_symndx == 0)
+ {
+ do_final_relocate = FALSE;
+ break;
+ }
+
+ /* Ignore weak references to undefined symbols. */
+ if (h != NULL && h->root.type == bfd_link_hash_undefweak)
+ {
+ do_final_relocate = FALSE;
+ break;
+ }
+
+ /* Using branch stub. */
+ if (use_branch_stub == TRUE
+ && ELF32_R_TYPE (rel->r_info) == R_CKCORE_PCREL_IMM26BY2)
+ {
+ struct elf32_csky_stub_hash_entry *stub_entry = NULL;
+ if (sym_must_create_stub (h, info))
+ stub_entry = elf32_csky_get_stub_entry (input_section,
+ input_section,
+ h, rel, htab);
+ else if (disp > BSR_MAX_FWD_BRANCH_OFFSET
+ || disp < BSR_MAX_BWD_BRANCH_OFFSET)
+ stub_entry = elf32_csky_get_stub_entry (input_section,
+ input_section,
+ h, rel, htab);
+ if (stub_entry != NULL)
+ relocation
+ = (stub_entry->stub_offset
+ + stub_entry->stub_sec->output_offset
+ + stub_entry->stub_sec->output_section->vma);
+ break;
+ }
+
+ else if (h == NULL
+ || (h->root.type == bfd_link_hash_defined
+ && h->dynindx == -1)
+ || ((h->def_regular && !h->def_dynamic)
+ && (h->root.type != bfd_link_hash_defweak
+ || ! bfd_link_pic (info))))
+ {
+ if (ELF32_R_TYPE (rel->r_info) == R_CKCORE_PCREL_JSR_IMM26BY2)
+ {
+ if (within_range (disp, 26))
+ {
+ /* In range for BSR32. */
+ howto = &csky_elf_howto_table[R_CKCORE_PCREL_IMM26BY2];
+ read_content_substitute = CSKY_INSN_BSR32;
+ }
+ else if (bfd_csky_arch (output_bfd) == CSKY_ARCH_810)
+ /* if bsr32 cannot reach, generate
+ "lrw r25, label; jsr r25" instead of
+ jsri label. */
+ howto = &csky_elf_howto_table[R_CKCORE_NOJSRI];
+ } /* if ELF32_R_TYPE (rel->r_info)... */
+ else if (ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_JSR_IMM11BY2)
+ {
+ if (within_range (disp, 11))
+ {
+ /* In range for BSR16. */
+ howto = &csky_elf_howto_table[R_CKCORE_PCREL_IMM11BY2];
+ read_content_substitute = CSKY_INSN_BSR16;
+ }
+ }
+ break;
+ } /* else if h == NULL... */
+
+ else if (bfd_csky_arch (output_bfd) == CSKY_ARCH_810
+ && (ELF32_R_TYPE (rel->r_info)
+ == R_CKCORE_PCREL_JSR_IMM26BY2))
+ {
+ howto = &csky_elf_howto_table[R_CKCORE_NOJSRI];
+ break;
+ }
+ /* Other situation, h->def_dynamic == 1,
+ undefined_symbol when output file is shared object, etc. */
+
+ case R_CKCORE_ADDR_HI16:
+ case R_CKCORE_ADDR_LO16:
+ if (bfd_link_pic (info)
+ || (!bfd_link_pic (info)
+ && h != NULL
+ && h->dynindx != -1
+ && !h->non_got_ref
+ && ((h->def_dynamic && !h->def_regular)
+ || (htab->elf.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_indirect)))))
+ {
+ Elf_Internal_Rela outrel;
+ bfd_boolean skip, relocate;
+ bfd_byte *loc;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at
+ run time. */
+ skip = FALSE;
+ relocate = FALSE;
+
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+ if (outrel.r_offset == (bfd_vma) -1)
+ skip = TRUE;
+ else if (outrel.r_offset == (bfd_vma) -2)
+ {
+ skip = TRUE;
+ relocate = TRUE;
+ }
+ outrel.r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+ if (skip)
+ memset (&outrel, 0, sizeof (outrel));
+ else if (h != NULL
+ && h->dynindx != -1
+ && (!bfd_link_pic (info)
+ || (!SYMBOLIC_BIND (info, h)
+ && h->root.type == bfd_link_hash_defweak)
+ || !h->def_regular))
+ {
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = rel->r_addend;
+ }
+ else
+ {
+ /* This symbol is local, or marked to become local. */
+ relocate = TRUE;
+ outrel.r_info = ELF32_R_INFO (0, r_type);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+ loc = htab->elf.srelgot->contents;
+ loc += (htab->elf.srelgot->reloc_count++
+ * sizeof (Elf32_External_Rela));
+
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+
+ /* If this reloc is against an external symbol, we do not
+ want to diddle with the addend. Otherwise, we need to
+ include the symbol value so that it becomes an addend
+ for the dynamic reloc. */
+ if (!relocate)
+ continue;
+ } /* if bfd_link_pic (info) ... */
+ break;
+
+ case R_CKCORE_ADDR32:
+ /* r_symndx will be zero only for relocs against symbols
+ from removed linkonce sections, or sections discarded
+ by a linker script.
+ This relocation don't nedd to handle, the value will
+ be set to SEC_DISCARDED(0xffffffff). */
+ if (r_symndx == 0
+ && strcmp (sec->name, ".csky_stack_size") == 0)
+ {
+ do_final_relocate = FALSE;
+ break;
+ }
+
+ if (r_symndx == 0 || (input_section->flags & SEC_ALLOC) == 0)
+ break;
+
+ if (bfd_link_pic (info)
+ || (h != NULL
+ && h->dynindx != -1
+ && ((h->def_dynamic && !h->def_regular)
+ || (htab->elf.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_indirect)))))
+ {
+ Elf_Internal_Rela outrel;
+ bfd_boolean skip, relocate;
+ bfd_byte *loc;
+
+ /* When generating a shared object, these relocations
+ are copied into the output file to be resolved at
+ run time. */
+ skip = FALSE;
+ relocate = FALSE;
+
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+
+ if (outrel.r_offset == (bfd_vma) -1)
+ skip = TRUE;
+ else if (outrel.r_offset == (bfd_vma) -2)
+ {
+ skip = TRUE;
+ relocate = TRUE;
+ }
+
+ outrel.r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+
+ if (skip)
+ memset (&outrel, 0, sizeof (outrel));
+ else if (h != NULL
+ && h->dynindx != -1
+ && (!bfd_link_pic (info)
+ || (!SYMBOLIC_BIND (info, h)
+ && h->root.type == bfd_link_hash_defweak)
+ || !h->def_regular))
+ {
+ outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
+ outrel.r_addend = rel->r_addend;
+ }
+ else
+ {
+ /* This symbol is local, or marked to become local. */
+ outrel.r_info = ELF32_R_INFO (0, R_CKCORE_RELATIVE);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
+
+ loc = htab->elf.srelgot->contents;
+ loc += (htab->elf.srelgot->reloc_count++
+ * sizeof (Elf32_External_Rela));
+
+ if (loc != NULL)
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+
+ /* If this reloc is against an external symbol, we do
+ want to diddle with the addend. Otherwise, we need to
+ include the symbol value so that it becomes an addend
+ for the dynamic reloc. */
+ if (! relocate)
+ continue;
+ }
+ break;
+
+ case R_CKCORE_TLS_LDO32:
+ relocation = relocation - dtpoff_base (info);
+ break;
+
+ case R_CKCORE_TLS_LDM32:
+ BFD_ASSERT (htab->elf.sgot != NULL);
+ off = htab->tls_ldm_got.offset;
+ if (off & 1)
+ off &= ~1;
+ else
+ {
+ /* If we don't know the module number,
+ create a relocation for it. */
+ if (!bfd_link_executable (info))
+ {
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+
+ BFD_ASSERT (htab->elf.srelgot != NULL);
+ outrel.r_addend = 0;
+ outrel.r_offset
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset + off);
+ outrel.r_info = ELF32_R_INFO (0, R_CKCORE_TLS_DTPMOD32);
+ bfd_put_32 (output_bfd, outrel.r_addend,
+ htab->elf.sgot->contents + off);
+
+ loc = htab->elf.srelgot->contents;
+ loc += (htab->elf.srelgot->reloc_count++
+ * sizeof (Elf32_External_Rela));
+ if (loc)
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ else
+ bfd_put_32 (output_bfd, 1,
+ htab->elf.sgot->contents + off);
+ htab->tls_ldm_got.offset |= 1;
+ }
+ relocation
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset + off
+ - (input_section->output_section->vma
+ + input_section->output_offset + rel->r_offset));
+ break;
+ case R_CKCORE_TLS_LE32:
+ if (bfd_link_dll (info))
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB(%pA+0x%#lx): R_CKCORE_TLS_LE32 relocation\
+ not permitted in shared object"),
+ input_bfd, input_section, rel->r_offset);
+ return FALSE;
+ }
+ else
+ relocation = tpoff (info, relocation);
+ break;
+ case R_CKCORE_TLS_GD32:
+ case R_CKCORE_TLS_IE32:
+ {
+ int indx;
+ char tls_type;
+
+ BFD_ASSERT (htab->elf.sgot != NULL);
+
+ indx = 0;
+ if (h != NULL)
+ {
+ bfd_boolean dyn;
+ dyn = htab->elf.dynamic_sections_created;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
+ bfd_link_pic (info), h)
+ && (!bfd_link_pic (info)
+ || !SYMBOL_REFERENCES_LOCAL (info, h)))
+ {
+ unresolved_reloc = FALSE;
+ indx = h->dynindx;
+ }
+ off = h->got.offset;
+ tls_type = ((struct csky_elf_link_hash_entry *)h)->tls_type;
+ }
+ else
+ {
+ BFD_ASSERT (local_got_offsets != NULL);
+ off = local_got_offsets[r_symndx];
+ tls_type = csky_elf_local_got_tls_type (input_bfd)[r_symndx];
+ }
+
+ BFD_ASSERT (tls_type != GOT_UNKNOWN);
+
+ if (off & 1)
+ off &= ~1;
+ else
+ {
+ bfd_boolean need_relocs = FALSE;
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc = NULL;
+ int cur_off = off;
+ /* The GOT entries have not been initialized yet. Do it
+ now, and emit any relocations. If both an IE GOT and a
+ GD GOT are necessary, we emit the GD first. */
+ if ((!bfd_link_executable (info) || indx != 0)
+ && (h == NULL
+ || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ || h->root.type != bfd_link_hash_undefined))
+ {
+ need_relocs = TRUE;
+ BFD_ASSERT (htab->elf.srelgot != NULL);
+
+ loc = htab->elf.srelgot->contents;
+ loc += (htab->elf.srelgot->reloc_count
+ * sizeof (Elf32_External_Rela));
+ }
+ if (tls_type & GOT_TLS_GD)
+ {
+ if (need_relocs)
+ {
+ outrel.r_addend = 0;
+ outrel.r_offset
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset
+ + cur_off);
+ outrel.r_info
+ = ELF32_R_INFO (indx, R_CKCORE_TLS_DTPMOD32);
+ bfd_put_32 (output_bfd, outrel.r_addend,
+ htab->elf.sgot->contents + cur_off);
+ if (loc)
+ bfd_elf32_swap_reloca_out (output_bfd,
+ &outrel, loc);
+ loc += sizeof (Elf32_External_Rela);
+ htab->elf.srelgot->reloc_count++;
+ if (indx == 0)
+ bfd_put_32 (output_bfd,
+ relocation - dtpoff_base (info),
+ (htab->elf.sgot->contents
+ + cur_off + 4));
+ else
+ {
+ outrel.r_addend = 0;
+ outrel.r_info
+ = ELF32_R_INFO (indx, R_CKCORE_TLS_DTPOFF32);
+ outrel.r_offset += 4;
+ bfd_put_32 (output_bfd, outrel.r_addend,
+ (htab->elf.sgot->contents
+ + cur_off + 4));
+ outrel.r_info =
+ ELF32_R_INFO (indx,
+ R_CKCORE_TLS_DTPOFF32);
+ if (loc)
+ bfd_elf32_swap_reloca_out (output_bfd,
+ &outrel,
+ loc);
+ htab->elf.srelgot->reloc_count++;
+ loc += sizeof (Elf32_External_Rela);
+ }
+
+ }
+ else
+ {
+ /* If are not emitting relocations for a
+ general dynamic reference, then we must be in a
+ static link or an executable link with the
+ symbol binding locally. Mark it as belonging
+ to module 1, the executable. */
+ bfd_put_32 (output_bfd, 1,
+ htab->elf.sgot->contents + cur_off);
+ bfd_put_32 (output_bfd,
+ relocation - dtpoff_base (info),
+ htab->elf.sgot->contents
+ + cur_off + 4);
+ }
+ cur_off += 8;
+ }
+ if (tls_type & GOT_TLS_IE)
+ {
+ if (need_relocs)
+ {
+ if (indx == 0)
+ outrel.r_addend = relocation - dtpoff_base (info);
+ else
+ outrel.r_addend = 0;
+ outrel.r_offset
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset + cur_off);
+ outrel.r_info
+ = ELF32_R_INFO (indx, R_CKCORE_TLS_TPOFF32);
+
+ bfd_put_32 (output_bfd, outrel.r_addend,
+ htab->elf.sgot->contents + cur_off);
+ if (loc)
+ bfd_elf32_swap_reloca_out (output_bfd,
+ &outrel, loc);
+ htab->elf.srelgot->reloc_count++;
+ loc += sizeof (Elf32_External_Rela);
+ }
+ else
+ bfd_put_32 (output_bfd, tpoff (info, relocation),
+ htab->elf.sgot->contents + cur_off);
+ }
+ if (h != NULL)
+ h->got.offset |= 1;
+ else
+ local_got_offsets[r_symndx] |= 1;
+ }
+ if ((tls_type & GOT_TLS_GD) && howto->type != R_CKCORE_TLS_GD32)
+ off += 8;
+ relocation
+ = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset + off
+ - (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset));
+ }
+ default:
+ /* No substitution when final linking. */
+ read_content_substitute = 0;
+ break;
+ } /* End switch (howto->type). */
+
+ /* Make sure 32-bit data in the text section will not be affected by
+ our special endianness.
+ However, this currently affects noting, since the ADDR32 howto type
+ does no change with the data read. But We may need this mechanism in
+ the futrue. */
+
+ if (howto->size == 2
+ && (howto->type == R_CKCORE_ADDR32
+ || howto->type == R_CKCORE_GOT32
+ || howto->type == R_CKCORE_GOTOFF
+ || howto->type == R_CKCORE_GOTPC
+ || howto->type == R_CKCORE_PLT32
+ || howto->type == R_CKCORE_TLS_LE32
+ || howto->type == R_CKCORE_TLS_IE32
+ || howto->type == R_CKCORE_TLS_LDM32
+ || howto->type == R_CKCORE_TLS_GD32
+ || howto->type == R_CKCORE_TLS_LDO32
+ || howto->type == R_CKCORE_RELATIVE))
+ need_reverse_bits = 0;
+ else
+ need_reverse_bits = 1;
+ /* Do the final link. */
+ if (howto->type != R_CKCORE_PCREL_JSR_IMM11BY2
+ && howto->type != R_CKCORE_PCREL_JSR_IMM26BY2
+ && howto->type != R_CKCORE_CALLGRAPH
+ && do_final_relocate)
+ r = csky_final_link_relocate (howto, input_bfd, input_section,
+ contents, rel->r_offset,
+ relocation, addend);
+
+ if (r != bfd_reloc_ok)
+ {
+ ret = FALSE;
+ switch (r)
+ {
+ default:
+ break;
+ case bfd_reloc_overflow:
+ if (h != NULL)
+ name = NULL;
+ else
+ {
+ name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (name == NULL)
+ break;
+ if (*name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+ (*info->callbacks->reloc_overflow)
+ (info,
+ (h ? &h->root : NULL),
+ name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset);
+ break;
+ }
+ }
+ } /* End for (;rel < relend; rel++). */
+ return ret;
+}
+
+static bfd_boolean
+csky_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
+{
+ int offset;
+ size_t size;
+
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+ /* Sizeof (struct elf_prstatus) on C-SKY V1 arch. */
+ case 148:
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
+ offset = 72;
+ size = 72;
+ break;
+ /* Sizeof (struct elf_prstatus) on C-SKY V1 arch. */
+ case 220:
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
+ offset = 72;
+ size = 34 * 4;
+ break;
+ }
+ /* Make a ".reg/999" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ size, note->descpos + offset);
+}
+
+static bfd_boolean
+csky_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
+{
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ /* Sizeof (struct elf_prpsinfo) on linux csky. */
+ case 124:
+ elf_tdata (abfd)->core->program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core->command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
+
+ /* Note that for some reason, a spurious space is tacked
+ onto the end of the args in some (at least one anyway)
+ implementations, so strip it off if it exists. */
+ {
+ char *command = elf_tdata (abfd)->core->command;
+ int n = strlen (command);
+
+ if (0 < n && command[n - 1] == ' ')
+ command[n - 1] = '\0';
+ }
+
+ return TRUE;
+}
+
+/* End of external entry points for sizing and building linker stubs. */
+
+/* CPU-related basic API. */
+#define TARGET_BIG_SYM csky_elf32_be_vec
+#define TARGET_BIG_NAME "elf32-csky-big"
+#define TARGET_LITTLE_SYM csky_elf32_le_vec
+#define TARGET_LITTLE_NAME "elf32-csky-little"
+#define ELF_ARCH bfd_arch_csky
+#define ELF_MACHINE_CODE EM_CSKY
+#define ELF_MACHINE_ALT1 EM_CSKY_OLD
+#define ELF_MAXPAGESIZE 0x1000
+#define elf_info_to_howto csky_elf_info_to_howto
+#define elf_info_to_howto_rel NULL
+#define elf_backend_special_sections csky_elf_special_sections
+#define bfd_elf32_bfd_link_hash_table_create csky_elf_link_hash_table_create
+
+/* Target related API. */
+#define bfd_elf32_mkobject csky_elf_mkobject
+#define bfd_elf32_bfd_merge_private_bfd_data csky_elf_merge_private_bfd_data
+#define bfd_elf32_bfd_set_private_flags csky_elf_set_private_flags
+#define elf_backend_copy_indirect_symbol csky_elf_copy_indirect_symbol
+
+/* GC section related API. */
+#define elf_backend_can_gc_sections 1
+#define elf_backend_gc_mark_hook csky_elf_gc_mark_hook
+#define elf_backend_gc_mark_extra_sections elf32_csky_gc_mark_extra_sections
+
+/* Relocation related API. */
+#define elf_backend_reloc_type_class csky_elf_reloc_type_class
+#define bfd_elf32_bfd_reloc_type_lookup csky_elf_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup csky_elf_reloc_name_lookup
+#define elf_backend_ignore_discarded_relocs csky_elf_ignore_discarded_relocs
+#define elf_backend_relocate_section csky_elf_relocate_section
+#define elf_backend_check_relocs csky_elf_check_relocs
+
+/* Dynamic relocate related API. */
+#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
+#define elf_backend_adjust_dynamic_symbol csky_elf_adjust_dynamic_symbol
+#define elf_backend_size_dynamic_sections csky_elf_size_dynamic_sections
+#define elf_backend_finish_dynamic_symbol csky_elf_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_sections csky_elf_finish_dynamic_sections
+#define elf_backend_rela_normal 1
+#define elf_backend_can_refcount 1
+#define elf_backend_plt_readonly 1
+#define elf_backend_want_got_sym 1
+#define elf_backend_got_header_size 12
+#define elf_backend_want_got_plt 1
+
+/* C-SKY coredump support. */
+#define elf_backend_grok_prstatus csky_elf_grok_prstatus
+#define elf_backend_grok_psinfo csky_elf_grok_psinfo
+
+#include "elf32-target.h"
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index b810c40..4da58fb 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -3216,6 +3216,71 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_WASM32_CODE_POINTER",
"BFD_RELOC_WASM32_INDEX",
"BFD_RELOC_WASM32_PLT_SIG",
+ "BFD_RELOC_CKCORE_NONE",
+ "BFD_RELOC_CKCORE_ADDR32",
+ "BFD_RELOC_CKCORE_PCREL_IMM8BY4",
+ "BFD_RELOC_CKCORE_PCREL_IMM11BY2",
+ "BFD_RELOC_CKCORE_PCREL_IMM4BY2",
+ "BFD_RELOC_CKCORE_PCREL32",
+ "BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2",
+ "BFD_RELOC_CKCORE_GNU_VTINHERIT",
+ "BFD_RELOC_CKCORE_GNU_VTENTRY",
+ "BFD_RELOC_CKCORE_RELATIVE",
+ "BFD_RELOC_CKCORE_COPY",
+ "BFD_RELOC_CKCORE_GLOB_DAT",
+ "BFD_RELOC_CKCORE_JUMP_SLOT",
+ "BFD_RELOC_CKCORE_GOTOFF",
+ "BFD_RELOC_CKCORE_GOTPC",
+ "BFD_RELOC_CKCORE_GOT32",
+ "BFD_RELOC_CKCORE_PLT32",
+ "BFD_RELOC_CKCORE_ADDRGOT",
+ "BFD_RELOC_CKCORE_ADDRPLT",
+ "BFD_RELOC_CKCORE_PCREL_IMM26BY2",
+ "BFD_RELOC_CKCORE_PCREL_IMM16BY2",
+ "BFD_RELOC_CKCORE_PCREL_IMM16BY4",
+ "BFD_RELOC_CKCORE_PCREL_IMM10BY2",
+ "BFD_RELOC_CKCORE_PCREL_IMM10BY4",
+ "BFD_RELOC_CKCORE_ADDR_HI16",
+ "BFD_RELOC_CKCORE_ADDR_LO16",
+ "BFD_RELOC_CKCORE_GOTPC_HI16",
+ "BFD_RELOC_CKCORE_GOTPC_LO16",
+ "BFD_RELOC_CKCORE_GOTOFF_HI16",
+ "BFD_RELOC_CKCORE_GOTOFF_LO16",
+ "BFD_RELOC_CKCORE_GOT12",
+ "BFD_RELOC_CKCORE_GOT_HI16",
+ "BFD_RELOC_CKCORE_GOT_LO16",
+ "BFD_RELOC_CKCORE_PLT12",
+ "BFD_RELOC_CKCORE_PLT_HI16",
+ "BFD_RELOC_CKCORE_PLT_LO16",
+ "BFD_RELOC_CKCORE_ADDRGOT_HI16",
+ "BFD_RELOC_CKCORE_ADDRGOT_LO16",
+ "BFD_RELOC_CKCORE_ADDRPLT_HI16",
+ "BFD_RELOC_CKCORE_ADDRPLT_LO16",
+ "BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2",
+ "BFD_RELOC_CKCORE_TOFFSET_LO16",
+ "BFD_RELOC_CKCORE_DOFFSET_LO16",
+ "BFD_RELOC_CKCORE_PCREL_IMM18BY2",
+ "BFD_RELOC_CKCORE_DOFFSET_IMM18",
+ "BFD_RELOC_CKCORE_DOFFSET_IMM18BY2",
+ "BFD_RELOC_CKCORE_DOFFSET_IMM18BY4",
+ "BFD_RELOC_CKCORE_GOTOFF_IMM18",
+ "BFD_RELOC_CKCORE_GOT_IMM18BY4",
+ "BFD_RELOC_CKCORE_PLT_IMM18BY4",
+ "BFD_RELOC_CKCORE_PCREL_IMM7BY4",
+ "BFD_RELOC_CKCORE_TLS_LE32",
+ "BFD_RELOC_CKCORE_TLS_IE32",
+ "BFD_RELOC_CKCORE_TLS_GD32",
+ "BFD_RELOC_CKCORE_TLS_LDM32",
+ "BFD_RELOC_CKCORE_TLS_LDO32",
+ "BFD_RELOC_CKCORE_TLS_DTPMOD32",
+ "BFD_RELOC_CKCORE_TLS_DTPOFF32",
+ "BFD_RELOC_CKCORE_TLS_TPOFF32",
+ "BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4",
+ "BFD_RELOC_CKCORE_NOJSRI",
+ "BFD_RELOC_CKCORE_CALLGRAPH",
+ "BFD_RELOC_CKCORE_IRELATIVE",
+ "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4",
+ "BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4",
"@@overflow: BFD_RELOC_UNUSED@@",
};
#endif
diff --git a/bfd/reloc.c b/bfd/reloc.c
index 411f998..7613f4e 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -7984,6 +7984,139 @@ ENUMX
ENUMDOC
WebAssembly relocations.
+ENUM
+ BFD_RELOC_CKCORE_NONE
+ENUMX
+ BFD_RELOC_CKCORE_ADDR32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM8BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM11BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM4BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2
+ENUMX
+ BFD_RELOC_CKCORE_GNU_VTINHERIT
+ENUMX
+ BFD_RELOC_CKCORE_GNU_VTENTRY
+ENUMX
+ BFD_RELOC_CKCORE_RELATIVE
+ENUMX
+ BFD_RELOC_CKCORE_COPY
+ENUMX
+ BFD_RELOC_CKCORE_GLOB_DAT
+ENUMX
+ BFD_RELOC_CKCORE_JUMP_SLOT
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC
+ENUMX
+ BFD_RELOC_CKCORE_GOT32
+ENUMX
+ BFD_RELOC_CKCORE_PLT32
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM26BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM16BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM16BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM10BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM10BY4
+ENUMX
+ BFD_RELOC_CKCORE_ADDR_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDR_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOT12
+ENUMX
+ BFD_RELOC_CKCORE_GOT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PLT12
+ENUMX
+ BFD_RELOC_CKCORE_PLT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_PLT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2
+ENUMX
+ BFD_RELOC_CKCORE_TOFFSET_LO16
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM18BY2
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY2
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_IMM18
+ENUMX
+ BFD_RELOC_CKCORE_GOT_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_PLT_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM7BY4
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LE32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_IE32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_GD32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LDM32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LDO32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_DTPMOD32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_DTPOFF32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_TPOFF32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4
+ENUMX
+ BFD_RELOC_CKCORE_NOJSRI
+ENUMX
+ BFD_RELOC_CKCORE_CALLGRAPH
+ENUMX
+ BFD_RELOC_CKCORE_IRELATIVE
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4
+ENUMDOC
+ C-SKY relocations.
+
ENDSENUM
BFD_RELOC_UNUSED
CODE_FRAGMENT
diff --git a/bfd/targets.c b/bfd/targets.c
index 5a2a684..5e097a6 100644
--- a/bfd/targets.c
+++ b/bfd/targets.c
@@ -625,6 +625,8 @@ extern const bfd_target cris_aout_vec;
extern const bfd_target cris_elf32_vec;
extern const bfd_target cris_elf32_us_vec;
extern const bfd_target crx_elf32_vec;
+extern const bfd_target csky_elf32_be_vec;
+extern const bfd_target csky_elf32_le_vec;
extern const bfd_target d10v_elf32_vec;
extern const bfd_target d30v_elf32_vec;
extern const bfd_target dlx_elf32_be_vec;
@@ -955,6 +957,9 @@ static const bfd_target * const _bfd_target_vector[] =
&crx_elf32_vec,
+ &csky_elf32_be_vec,
+ &csky_elf32_le_vec,
+
&d10v_elf32_vec,
&d30v_elf32_vec,
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 8335538..a97980f 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -98,6 +98,7 @@
#include "elf/cr16.h"
#include "elf/cris.h"
#include "elf/crx.h"
+#include "elf/csky.h"
#include "elf/d10v.h"
#include "elf/d30v.h"
#include "elf/dlx.h"
@@ -797,6 +798,7 @@ guess_is_rela (unsigned int e_machine)
case EM_CR16:
case EM_CRIS:
case EM_CRX:
+ case EM_CSKY:
case EM_D30V:
case EM_CYGNUS_D30V:
case EM_FR30:
@@ -1348,6 +1350,10 @@ dump_relocations (Filedata * filedata,
rtype = elf_frv_reloc_type (type);
break;
+ case EM_CSKY:
+ rtype = elf_csky_reloc_type (type);
+ break;
+
case EM_FT32:
rtype = elf_ft32_reloc_type (type);
break;
@@ -2501,6 +2507,7 @@ get_machine_name (unsigned e_machine)
case EM_ADAPTEVA_EPIPHANY: return "Adapteva EPIPHANY";
case EM_CYGNUS_FRV: return "Fujitsu FR-V";
case EM_S12Z: return "Freescale S12Z";
+ case EM_CSKY: return "C-SKY";
default:
snprintf (buff, sizeof (buff), _("<unknown>: 0x%x"), e_machine);
@@ -12278,6 +12285,8 @@ is_32bit_abs_reloc (Filedata * filedata, unsigned int reloc_type)
return reloc_type == 3; /* R_CR16_NUM32. */
case EM_CRX:
return reloc_type == 15; /* R_CRX_NUM32. */
+ case EM_CSKY:
+ return reloc_type == 1; /* R_CKCORE_ADDR32. */
case EM_CYGNUS_FRV:
return reloc_type == 1;
case EM_CYGNUS_D10V:
diff --git a/include/elf/common.h b/include/elf/common.h
index 773f378..88faee7 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -340,6 +340,7 @@
#define EM_LANAI 244 /* Lanai 32-bit processor. */
#define EM_BPF 247 /* Linux BPF â?? in-kernel virtual machine. */
#define EM_NFP 250 /* Netronome Flow Processor. */
+#define EM_CSKY 252 /* C-SKY processor family. */
/* If it is necessary to assign new unofficial EM_* values, please pick large
random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
@@ -435,6 +436,10 @@
/* Old constant that might be in use by some software. */
#define EM_OPENRISC EM_OR1K
+/* C-SKY historically used 39, the same value as MCORE, from which the
+ architecture was derived. */
+#define EM_CSKY_OLD EM_MCORE
+
/* See the above comment before you add a new EM_* value here. */
/* Values for e_version. */
diff --git a/include/elf/csky.h b/include/elf/csky.h
new file mode 100644
index 0000000..7ffc326
--- /dev/null
+++ b/include/elf/csky.h
@@ -0,0 +1,99 @@
+/* C-SKY ELF support for BFD.
+ Copyright (C) 1998-2018 Free Software Foundation, Inc.
+ Contributed by C-SKY Microsystems and Mentor Graphics.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _ELF_CSKY_H
+#define _ELF_CSKY_H
+
+#include "elf/reloc-macros.h"
+
+/* Values of relocation types according to the ABI doc.
+ The order should be consistent with csky bfd reloc type
+ table in bfd-in2.h. */
+START_RELOC_NUMBERS (elf_csky_reloc_type)
+ RELOC_NUMBER (R_CKCORE_NONE,0)
+ RELOC_NUMBER (R_CKCORE_ADDR32,1)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM8BY4,2)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM11BY2,3)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM4BY2,4)
+ RELOC_NUMBER (R_CKCORE_PCREL32,5)
+ RELOC_NUMBER (R_CKCORE_PCREL_JSR_IMM11BY2,6)
+ RELOC_NUMBER (R_CKCORE_GNU_VTINHERIT,7)
+ RELOC_NUMBER (R_CKCORE_GNU_VTENTRY,8)
+ RELOC_NUMBER (R_CKCORE_RELATIVE,9)
+ RELOC_NUMBER (R_CKCORE_COPY,10)
+ RELOC_NUMBER (R_CKCORE_GLOB_DAT,11)
+ RELOC_NUMBER (R_CKCORE_JUMP_SLOT,12)
+ RELOC_NUMBER (R_CKCORE_GOTOFF,13)
+ RELOC_NUMBER (R_CKCORE_GOTPC,14)
+ RELOC_NUMBER (R_CKCORE_GOT32,15)
+ RELOC_NUMBER (R_CKCORE_PLT32,16)
+ RELOC_NUMBER (R_CKCORE_ADDRGOT,17)
+ RELOC_NUMBER (R_CKCORE_ADDRPLT,18)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM26BY2,19)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM16BY2,20)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM16BY4,21)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM10BY2,22)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM10BY4,23)
+ RELOC_NUMBER (R_CKCORE_ADDR_HI16,24)
+ RELOC_NUMBER (R_CKCORE_ADDR_LO16,25)
+ RELOC_NUMBER (R_CKCORE_GOTPC_HI16,26)
+ RELOC_NUMBER (R_CKCORE_GOTPC_LO16,27)
+ RELOC_NUMBER (R_CKCORE_GOTOFF_HI16,28)
+ RELOC_NUMBER (R_CKCORE_GOTOFF_LO16,29)
+ RELOC_NUMBER (R_CKCORE_GOT12,30)
+ RELOC_NUMBER (R_CKCORE_GOT_HI16,31)
+ RELOC_NUMBER (R_CKCORE_GOT_LO16,32)
+ RELOC_NUMBER (R_CKCORE_PLT12,33)
+ RELOC_NUMBER (R_CKCORE_PLT_HI16,34)
+ RELOC_NUMBER (R_CKCORE_PLT_LO16,35)
+ RELOC_NUMBER (R_CKCORE_ADDRGOT_HI16,36)
+ RELOC_NUMBER (R_CKCORE_ADDRGOT_LO16,37)
+ RELOC_NUMBER (R_CKCORE_ADDRPLT_HI16,38)
+ RELOC_NUMBER (R_CKCORE_ADDRPLT_LO16,39)
+ RELOC_NUMBER (R_CKCORE_PCREL_JSR_IMM26BY2,40)
+ RELOC_NUMBER (R_CKCORE_TOFFSET_LO16, 41)
+ RELOC_NUMBER (R_CKCORE_DOFFSET_LO16, 42)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM18BY2, 43)
+ RELOC_NUMBER (R_CKCORE_DOFFSET_IMM18, 44)
+ RELOC_NUMBER (R_CKCORE_DOFFSET_IMM18BY2, 45)
+ RELOC_NUMBER (R_CKCORE_DOFFSET_IMM18BY4, 46)
+ RELOC_NUMBER (R_CKCORE_GOTOFF_IMM18, 47)
+ RELOC_NUMBER (R_CKCORE_GOT_IMM18BY4, 48)
+ RELOC_NUMBER (R_CKCORE_PLT_IMM18BY4, 49)
+ RELOC_NUMBER (R_CKCORE_PCREL_IMM7BY4, 50)
+ RELOC_NUMBER (R_CKCORE_TLS_LE32, 51)
+ RELOC_NUMBER (R_CKCORE_TLS_IE32, 52)
+ RELOC_NUMBER (R_CKCORE_TLS_GD32, 53)
+ RELOC_NUMBER (R_CKCORE_TLS_LDM32, 54)
+ RELOC_NUMBER (R_CKCORE_TLS_LDO32, 55)
+ RELOC_NUMBER (R_CKCORE_TLS_DTPMOD32, 56)
+ RELOC_NUMBER (R_CKCORE_TLS_DTPOFF32, 57)
+ RELOC_NUMBER (R_CKCORE_TLS_TPOFF32, 58)
+ RELOC_NUMBER (R_CKCORE_PCREL_FLRW_IMM8BY4, 59)
+ RELOC_NUMBER (R_CKCORE_NOJSRI, 60)
+ RELOC_NUMBER (R_CKCORE_CALLGRAPH, 61)
+ RELOC_NUMBER (R_CKCORE_IRELATIVE, 62)
+ RELOC_NUMBER (R_CKCORE_PCREL_BLOOP_IMM4BY4, 63)
+ RELOC_NUMBER (R_CKCORE_PCREL_BLOOP_IMM12BY4, 64)
+END_RELOC_NUMBERS (R_CKCORE_MAX)
+
+#endif /* _ELF_CSKY_H */
+
+