[PATCH ARC 2/8] BINUTILS: new ARC port
Claudiu Zissulescu
claziss@gmail.com
Wed Sep 9 14:10:00 GMT 2015
Hi,
Please find attached a new amended ARC patch for binutils/ folder. I have added extra a NEWS entry, and I have changed the ARC's e_machine flags accordingly to the naming used here: http://www.sco.com/developers/gabi/latest/ch4.eheader.html
The complete proposed ARC patch can be found also here: https://github.com/foss-for-synopsys-dwc-arc-processors/binutils_gdb_upstreaming
Thank you,
Claudiu
binutils/ChangeLog:
2015-09-01 Claudiu Zissulescu <claziss@synopsys.com>
Cupertino Miranda <cmiranda@synopsys.com>
* readelf.c (get_machine_name): Remove A5 reference. Add ARCompact
and ARCv2.
(get_machine_flags): Handle EM_ARCV2 and EM_ARCOMPACT.
(guess_is_rela): Likewise.
(dump_relocations): Likewise.
(is_32bit_abs_reloc): Likewise.
(is_16bit_abs_reloc): Likewise.
(is_none_reloc): Likewise.
* NEWS: Mention the new feature.
-------------- next part --------------
>From 736ecc9f03362ab7db378af1cc1f7f127ccb2a52 Mon Sep 17 00:00:00 2001
From: Cupertino Miranda <Cupertino.Miranda@synopsys.com>
Date: Tue, 1 Sep 2015 12:26:09 +0200
Subject: [PATCH] New ARC port.
Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
---
binutils/NEWS | 2 ++
binutils/readelf.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 75 insertions(+), 1 deletion(-)
diff --git a/binutils/NEWS b/binutils/NEWS
index 36f2c05..8c93216 100644
--- a/binutils/NEWS
+++ b/binutils/NEWS
@@ -1,5 +1,7 @@
-*- text -*-
+* Add support for the ARC EM/HS, and ARC600/700 architectures.
+
* Extend objcopy --compress-debug-sections option to support
--compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] for ELF
targets.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 6298f1e..8efe6a1 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -722,6 +722,9 @@ guess_is_rela (unsigned int e_machine)
case EM_ADAPTEVA_EPIPHANY:
case EM_ALPHA:
case EM_ALTERA_NIOS2:
+ case EM_ARC:
+ case EM_ARC_COMPACT:
+ case EM_ARC_COMPACT2:
case EM_AVR:
case EM_AVR_OLD:
case EM_BLACKFIN:
@@ -1309,6 +1312,8 @@ dump_relocations (FILE * file,
break;
case EM_ARC:
+ case EM_ARC_COMPACT:
+ case EM_ARC_COMPACT2:
rtype = elf_arc_reloc_type (type);
break;
@@ -2109,6 +2114,8 @@ get_machine_name (unsigned e_machine)
case EM_SPARCV9: return "Sparc v9";
case EM_TRICORE: return "Siemens Tricore";
case EM_ARC: return "ARC";
+ case EM_ARC_COMPACT: return "ARCompact";
+ case EM_ARC_COMPACT2: return "ARCv2";
case EM_H8_300: return "Renesas H8/300";
case EM_H8_300H: return "Renesas H8/300H";
case EM_H8S: return "Renesas H8S";
@@ -2176,7 +2183,6 @@ get_machine_name (unsigned e_machine)
case EM_SCORE: return "SUNPLUS S+Core";
case EM_XSTORMY16: return "Sanyo XStormy16 CPU core";
case EM_OR1K: return "OpenRISC 1000";
- case EM_ARC_A5: return "ARC International ARCompact processor";
case EM_CRX: return "National Semiconductor CRX microprocessor";
case EM_ADAPTEVA_EPIPHANY: return "Adapteva EPIPHANY";
case EM_DLX: return "OpenDLX";
@@ -2755,6 +2761,63 @@ get_machine_flags (unsigned e_flags, unsigned e_machine)
default:
break;
+ case EM_ARC_COMPACT2:
+ switch (e_flags & EF_ARC_MACH_MSK)
+ {
+ case EF_ARC_CPU_ARCV2EM:
+ strcat (buf, ", ARC EM");
+ break;
+ case EF_ARC_CPU_ARCV2HS:
+ strcat (buf, ", ARC HS");
+ break;
+ default:
+ strcat (buf, ", unrecognized flag for ARCv2");
+ break;
+ }
+ switch (e_flags & EF_ARC_OSABI_MSK)
+ {
+ /* Only upstream 3.9+ kernels will support ARCv2
+ ISA. */
+ case E_ARC_OSABI_V3:
+ strcat (buf, ", v3 no-legacy-syscalls ABI");
+ break;
+ }
+ break;
+
+ case EM_ARC_COMPACT:
+ switch (e_flags & EF_ARC_MACH_MSK)
+ {
+ case E_ARC_MACH_ARC600:
+ strcat (buf, ", ARC 600");
+ break;
+ case E_ARC_MACH_ARC601:
+ strcat (buf, ", ARC 601");
+ break;
+ case E_ARC_MACH_ARC700:
+ strcat (buf, ", ARC 700");
+ break;
+ default:
+ strcat (buf, ", Generic ARCompact");
+ break;
+ }
+ switch (e_flags & EF_ARC_OSABI_MSK)
+ {
+ case E_ARC_OSABI_ORIG:
+ strcat (buf, ", legacy syscall ABI");
+ break;
+ case E_ARC_OSABI_V2:
+ /* For 3.2+ Linux kernels which use asm-generic
+ hdrs. */
+ strcat (buf, ", v2 syscall ABI");
+ break;
+ case E_ARC_OSABI_V3:
+ /* Upstream 3.9+ kernels which don't use any legacy
+ syscalls. */
+ strcat (buf, ", v3 no-legacy-syscalls ABI");
+ break;
+ }
+ break;
+
case EM_ARM:
decode_ARM_machine_flags (e_flags, buf);
break;
@@ -11267,6 +11330,8 @@ is_32bit_abs_reloc (unsigned int reloc_type)
case EM_ALPHA:
return reloc_type == 1; /* R_ALPHA_REFLONG. */
case EM_ARC:
+ case EM_ARC_COMPACT:
+ case EM_ARC_COMPACT2:
return reloc_type == 1; /* R_ARC_32. */
case EM_ARM:
return reloc_type == 2; /* R_ARM_ABS32 */
@@ -11586,6 +11651,10 @@ is_16bit_abs_reloc (unsigned int reloc_type)
{
switch (elf_header.e_machine)
{
+ case EM_ARC:
+ case EM_ARC_COMPACT:
+ case EM_ARC_COMPACT2:
+ return reloc_type == 2; /* R_ARC_16. */
case EM_AVR_OLD:
case EM_AVR:
return reloc_type == 4; /* R_AVR_16. */
@@ -11656,6 +11725,9 @@ is_none_reloc (unsigned int reloc_type)
case EM_ADAPTEVA_EPIPHANY:
case EM_PPC: /* R_PPC_NONE. */
case EM_PPC64: /* R_PPC64_NONE. */
+ case EM_ARC: /* R_ARC_NONE. */
+ case EM_ARC_COMPACT: /* R_ARC_NONE. */
+ case EM_ARC_COMPACT2: /* R_ARC_NONE. */
case EM_ARM: /* R_ARM_NONE. */
case EM_IA_64: /* R_IA64_NONE. */
case EM_SH: /* R_SH_NONE. */
--
2.5.1
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