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[PATCH v2 02/15] PRU Binutils port
- From: Dimitar Dimitrov <dimitar at dinux dot eu>
- To: binutils at sourceware dot org
- Cc: Dimitar Dimitrov <dimitar at dinux dot eu>
- Date: Tue, 27 Dec 2016 22:43:37 +0200
- Subject: [PATCH v2 02/15] PRU Binutils port
- Authentication-results: sourceware.org; auth=none
- References: <20161227204350.30482-1-dimitar@dinux.eu>
2016-12-26 Dimitar Dimitrov <dimitar@dinux.eu>
binutils/
* readelf.c (guess_is_rela): Add EM_TI_PRU.
(dump_relocations): Invoke elf_pru_reloc_type.
(get_machine_name): Handle EM_TI_PRU.
(is_32bit_abs_reloc): Handle R_PRU_BFD_RELOC_32.
(is_16bit_abs_reloc): Handle R_PRU_BFD_RELOC_16.
(is_none_reloc): Handle PRU_NONE and PRU_DIFF variants.
include/
* elf/common.h: Add PRU ELF.
* elf/pru.h: New file.
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
---
binutils/readelf.c | 16 +++++++++++++++
include/elf/common.h | 2 +-
include/elf/pru.h | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 72 insertions(+), 1 deletion(-)
create mode 100644 include/elf/pru.h
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 873a471029..0a49e8a0d5 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -137,6 +137,7 @@
#include "elf/pj.h"
#include "elf/ppc.h"
#include "elf/ppc64.h"
+#include "elf/pru.h"
#include "elf/rl78.h"
#include "elf/rx.h"
#include "elf/s390.h"
@@ -776,6 +777,7 @@ guess_is_rela (unsigned int e_machine)
case EM_OR1K:
case EM_PPC64:
case EM_PPC:
+ case EM_TI_PRU:
case EM_RISCV:
case EM_RL78:
case EM_RX:
@@ -1483,6 +1485,10 @@ dump_relocations (FILE * file,
case EM_ALTERA_NIOS2:
rtype = elf_nios2_reloc_type (type);
break;
+
+ case EM_TI_PRU:
+ rtype = elf_pru_reloc_type (type);
+ break;
}
if (rtype == NULL)
@@ -2370,6 +2376,7 @@ get_machine_name (unsigned e_machine)
case EM_CSR_KALIMBA: return "CSR Kalimba architecture family";
case EM_Z80: return "Zilog Z80";
case EM_AMDGPU: return "AMD GPU architecture";
+ case EM_TI_PRU: return "TI PRU I/O processor";
default:
snprintf (buff, sizeof (buff), _("<unknown>: 0x%x"), e_machine);
return buff;
@@ -11852,6 +11859,8 @@ is_32bit_abs_reloc (unsigned int reloc_type)
return reloc_type == 1; /* R_PPC64_ADDR32. */
case EM_PPC:
return reloc_type == 1; /* R_PPC_ADDR32. */
+ case EM_TI_PRU:
+ return reloc_type == 11; /* R_PRU_BFD_RELOC_32. */
case EM_RISCV:
return reloc_type == 1; /* R_RISCV_32. */
case EM_RL78:
@@ -12134,6 +12143,8 @@ is_16bit_abs_reloc (unsigned int reloc_type)
return reloc_type == 9; /* R_NIOS_16. */
case EM_OR1K:
return reloc_type == 2; /* R_OR1K_16. */
+ case EM_TI_PRU:
+ return reloc_type == 8; /* R_PRU_BFD_RELOC_16. */
case EM_TI_C6000:
return reloc_type == 2; /* R_C6000_ABS16. */
case EM_VISIUM:
@@ -12210,6 +12221,11 @@ is_none_reloc (unsigned int reloc_type)
|| reloc_type == 205 /* R_NDS32_DIFF16. */
|| reloc_type == 206 /* R_NDS32_DIFF32. */
|| reloc_type == 207 /* R_NDS32_ULEB128. */);
+ case EM_TI_PRU:
+ return (reloc_type == 0 /* R_PRU_NONE. */
+ || reloc_type == 65 /* R_PRU_DIFF8. */
+ || reloc_type == 66 /* R_PRU_DIFF16. */
+ || reloc_type == 67 /* R_PRU_DIFF32. */);
case EM_XTENSA_OLD:
case EM_XTENSA:
return (reloc_type == 0 /* R_XTENSA_NONE. */
diff --git a/include/elf/common.h b/include/elf/common.h
index da79613e6d..192c585a72 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -248,7 +248,7 @@
#define EM_TI_C2000 141 /* Texas Instruments TMS320C2000 DSP family */
#define EM_TI_C5500 142 /* Texas Instruments TMS320C55x DSP family */
#define EM_res143 143 /* Reserved */
-#define EM_res144 144 /* Reserved */
+#define EM_TI_PRU 144 /* Texas Instruments Programmable Realtime Unit */
#define EM_res145 145 /* Reserved */
#define EM_res146 146 /* Reserved */
#define EM_res147 147 /* Reserved */
diff --git a/include/elf/pru.h b/include/elf/pru.h
new file mode 100644
index 0000000000..84501562ac
--- /dev/null
+++ b/include/elf/pru.h
@@ -0,0 +1,55 @@
+/* TI PRU ELF support for BFD.
+ Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+
+ 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. */
+
+
+/* This file holds definitions specific to the TI PRU ELF ABI. Note
+ that most of this is not actually implemented by BFD. */
+
+#ifndef _ELF_PRU_H
+#define _ELF_PRU_H
+
+#include "elf/reloc-macros.h"
+
+START_RELOC_NUMBERS (elf_pru_reloc_type)
+ RELOC_NUMBER (R_PRU_NONE, 0)
+ RELOC_NUMBER (R_PRU_16_PMEM, 5)
+ RELOC_NUMBER (R_PRU_U16_PMEMIMM, 6)
+ RELOC_NUMBER (R_PRU_BFD_RELOC_16, 8)
+ RELOC_NUMBER (R_PRU_U16, 9)
+ RELOC_NUMBER (R_PRU_32_PMEM, 10)
+ RELOC_NUMBER (R_PRU_BFD_RELOC_32, 11)
+ RELOC_NUMBER (R_PRU_S10_PCREL, 14)
+ RELOC_NUMBER (R_PRU_U8_PCREL, 15)
+ RELOC_NUMBER (R_PRU_LDI32, 18)
+
+ /* Extensions required by GCC, or simply nice to have. */
+ RELOC_NUMBER (R_PRU_GNU_BFD_RELOC_8, 64)
+ RELOC_NUMBER (R_PRU_GNU_DIFF8, 65)
+ RELOC_NUMBER (R_PRU_GNU_DIFF16, 66)
+ RELOC_NUMBER (R_PRU_GNU_DIFF32, 67)
+ RELOC_NUMBER (R_PRU_GNU_DIFF16_PMEM, 68)
+ RELOC_NUMBER (R_PRU_GNU_DIFF32_PMEM, 69)
+ RELOC_NUMBER (R_PRU_ILLEGAL, 70)
+END_RELOC_NUMBERS (R_PRU_maxext)
+
+/* Processor-specific section flags. */
+
+#endif /* _ELF_PRU_H */
--
2.11.0