RepoMirrors
/
openwrt
mirror of git://git.openwrt.org/openwrt/openwrt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
openwrt/tools/elfutils/patches/010-backport-mips-support-r...

2526 lines
79 KiB
Diff
Raw Blame History

From 8d3bb7db9d6f07decfc59d83988cda54e5a8b0cd Mon Sep 17 00:00:00 2001
From: Ying Huang <ying.huang@oss.cipunited.com>
Date: Tue, 5 Mar 2024 17:51:17 +0800
Subject: [PATCH 1/7] Support Mips architecture
* backends/Makefile.am (modules): Add mips.
(mips_SRCS): New var for mips_init.c mips_symbol.c.
(libebl_backends_a_SOURCES): Add mips_SRCS.
* backends/mips_init.c: New file.
* backends/mips_reloc.def: Likewise.
* backends/mips_symbol.c: Likewise.
* libebl/eblopenbackend.c (mips_init): Declare.
(machines): Add mips.
* libelf/libelfP.h: Add ELF64_MIPS_R_TYPE{1,2,3}
Signed-off-by: Ying Huang <ying.huang@oss.cipunited.com>
---
backends/Makefile.am | 6 ++-
backends/mips_init.c | 52 +++++++++++++++++++++++
backends/mips_reloc.def | 93 +++++++++++++++++++++++++++++++++++++++++
backends/mips_symbol.c | 63 ++++++++++++++++++++++++++++
libebl/eblopenbackend.c | 2 +
libelf/libelfP.h | 3 ++
6 files changed, 217 insertions(+), 2 deletions(-)
create mode 100644 backends/mips_init.c
create mode 100644 backends/mips_reloc.def
create mode 100644 backends/mips_symbol.c
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -37,7 +37,7 @@ AM_CPPFLAGS += -I$(top_srcdir)/libebl -I
noinst_LIBRARIES = libebl_backends.a libebl_backends_pic.a
modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \
- m68k bpf riscv csky loongarch arc
+ m68k bpf riscv csky loongarch arc mips
i386_SRCS = i386_init.c i386_symbol.c i386_corenote.c i386_cfi.c \
i386_retval.c i386_regs.c i386_auxv.c \
@@ -102,12 +102,16 @@ loongarch_SRCS = loongarch_init.c loonga
arc_SRCS = arc_init.c arc_symbol.c
+mips_SRCS = mips_init.c mips_symbol.c mips_attrs.c mips_initreg.c \
+ mips_cfi.c mips_unwind.c mips_regs.c mips_retval.c \
+ mips_corenote.c mips64_corenote.c
+
libebl_backends_a_SOURCES = $(i386_SRCS) $(sh_SRCS) $(x86_64_SRCS) \
$(ia64_SRCS) $(alpha_SRCS) $(arm_SRCS) \
$(aarch64_SRCS) $(sparc_SRCS) $(ppc_SRCS) \
$(ppc64_SRCS) $(s390_SRCS) \
$(m68k_SRCS) $(bpf_SRCS) $(riscv_SRCS) $(csky_SRCS) \
- $(loongarch_SRCS) $(arc_SRCS)
+ $(loongarch_SRCS) $(arc_SRCS) $(mips_SRCS)
libebl_backends_pic_a_SOURCES =
am_libebl_backends_pic_a_OBJECTS = $(libebl_backends_a_SOURCES:.c=.os)
--- /dev/null
+++ b/backends/mips_init.c
@@ -0,0 +1,74 @@
+/* Initialization of MIPS specific backend library.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#define BACKEND mips_
+#define RELOC_PREFIX R_MIPS_
+#include "libebl_CPU.h"
+#include "libelfP.h"
+
+#define RELOC_TYPE_ID(type) ((type) & 0xff)
+
+/* This defines the common reloc hooks based on mips_reloc.def. */
+#include "common-reloc.c"
+
+extern __typeof (EBLHOOK (core_note)) mips64_core_note attribute_hidden;
+
+Ebl *
+mips_init (Elf *elf __attribute__ ((unused)),
+ GElf_Half machine __attribute__ ((unused)),
+ Ebl *eh)
+{
+ /* We handle it. */
+ mips_init_reloc (eh);
+ HOOK (eh, reloc_simple_type);
+ HOOK (eh, section_type_name);
+ HOOK (eh, machine_flag_check);
+ HOOK (eh, machine_flag_name);
+ HOOK (eh, machine_section_flag_check);
+ HOOK (eh, segment_type_name);
+ HOOK (eh, dynamic_tag_check);
+ HOOK (eh, dynamic_tag_name);
+ HOOK (eh, check_object_attribute);
+ HOOK (eh, check_special_symbol);
+ HOOK (eh, check_reloc_target_type);
+ HOOK (eh, set_initial_registers_tid);
+ HOOK (eh, abi_cfi);
+ HOOK (eh, unwind);
+ HOOK (eh, register_info);
+ HOOK (eh, return_value_location);
+ if (eh->class == ELFCLASS64)
+ eh->core_note = mips64_core_note;
+ else
+ HOOK (eh, core_note);
+ eh->frame_nregs = 71;
+ return eh;
+}
--- /dev/null
+++ b/backends/mips_reloc.def
@@ -0,0 +1,93 @@
+/* List the relocation types for MIPS. -*- C -*-
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+/* NAME, REL|EXEC|DYN */
+
+
+RELOC_TYPE (NONE, REL|EXEC|DYN)
+RELOC_TYPE (16, REL|EXEC|DYN)
+RELOC_TYPE (32, REL)
+RELOC_TYPE (REL32, REL|EXEC|DYN)
+RELOC_TYPE (26, REL|DYN)
+RELOC_TYPE (HI16, REL)
+RELOC_TYPE (LO16, REL|EXEC|DYN)
+RELOC_TYPE (GPREL16, REL|EXEC|DYN)
+RELOC_TYPE (LITERAL, REL|EXEC|DYN)
+RELOC_TYPE (GOT16, REL|EXEC|DYN)
+RELOC_TYPE (PC16, REL)
+RELOC_TYPE (CALL16, REL)
+RELOC_TYPE (GPREL32, REL)
+RELOC_TYPE (SHIFT5, REL)
+RELOC_TYPE (SHIFT6, REL)
+RELOC_TYPE (64, REL)
+RELOC_TYPE (GOT_DISP, REL)
+RELOC_TYPE (GOT_PAGE, REL)
+RELOC_TYPE (GOT_OFST, REL)
+RELOC_TYPE (GOT_HI16, REL)
+RELOC_TYPE (GOT_LO16, REL)
+RELOC_TYPE (SUB, REL)
+RELOC_TYPE (INSERT_A, REL)
+RELOC_TYPE (INSERT_B, REL)
+RELOC_TYPE (DELETE, REL)
+RELOC_TYPE (HIGHER, REL)
+RELOC_TYPE (HIGHEST, REL)
+RELOC_TYPE (CALL_HI16, REL)
+RELOC_TYPE (CALL_LO16, REL)
+RELOC_TYPE (SCN_DISP, REL)
+RELOC_TYPE (REL16, REL)
+RELOC_TYPE (ADD_IMMEDIATE, REL)
+RELOC_TYPE (PJUMP, REL)
+RELOC_TYPE (RELGOT, REL)
+RELOC_TYPE (JALR, REL)
+RELOC_TYPE (TLS_DTPMOD32, DYN)
+RELOC_TYPE (TLS_DTPREL32, REL)
+RELOC_TYPE (TLS_DTPMOD64, DYN)
+RELOC_TYPE (TLS_DTPREL64, REL)
+RELOC_TYPE (TLS_GD, REL)
+RELOC_TYPE (TLS_LDM, REL)
+RELOC_TYPE (TLS_DTPREL_HI16, REL)
+RELOC_TYPE (TLS_DTPREL_LO16, REL)
+RELOC_TYPE (TLS_GOTTPREL, REL)
+RELOC_TYPE (TLS_TPREL32, REL)
+RELOC_TYPE (TLS_TPREL64, REL)
+RELOC_TYPE (TLS_TPREL_HI16, REL)
+RELOC_TYPE (TLS_TPREL_LO16, REL)
+RELOC_TYPE (GLOB_DAT, REL)
+RELOC_TYPE (PC21_S2, REL)
+RELOC_TYPE (PC26_S2, REL)
+RELOC_TYPE (PC18_S3, REL)
+RELOC_TYPE (PC19_S2, REL)
+RELOC_TYPE (PCHI16, REL)
+RELOC_TYPE (PCLO16, REL)
+RELOC_TYPE (COPY, REL)
+RELOC_TYPE (JUMP_SLOT, REL)
+RELOC_TYPE (PC32, REL)
+RELOC_TYPE (EH, REL)
+RELOC_TYPE (GNU_REL16_S2, REL)
+RELOC_TYPE (GNU_VTINHERIT, REL)
+RELOC_TYPE (GNU_VTENTRY, REL)
--- /dev/null
+++ b/backends/mips_symbol.c
@@ -0,0 +1,671 @@
+/* MIPS specific symbolic name handling.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <system.h>
+
+#include <elf.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+#define BACKEND mips_
+#include "libebl_CPU.h"
+#include "libelfP.h"
+
+/* Check for the simple reloc types. */
+Elf_Type
+mips_reloc_simple_type (Ebl *ebl, int type,
+ int *addsub __attribute__ ((unused)))
+{
+ int typeNew = type;
+ if(ebl->elf->class == ELFCLASS64)
+ typeNew = ELF64_MIPS_R_TYPE1(type);
+ switch (typeNew)
+ {
+ case R_MIPS_64:
+ return ELF_T_XWORD;
+ case R_MIPS_32:
+ return ELF_T_WORD;
+ case R_MIPS_16:
+ return ELF_T_HALF;
+
+ default:
+ return ELF_T_NUM;
+ }
+}
+
+/* copy binutils-2.34/binutils/readelf.c get_mips_section_type_name */
+const char *
+mips_section_type_name (int type,
+ char *buf __attribute__ ((unused)),
+ size_t len __attribute__ ((unused)))
+{
+ switch (type)
+ {
+ case SHT_MIPS_LIBLIST:
+ return "MIPS_LIBLIST";
+ case SHT_MIPS_MSYM:
+ return "MIPS_MSYM";
+ case SHT_MIPS_CONFLICT:
+ return "MIPS_CONFLICT";
+ case SHT_MIPS_GPTAB:
+ return "MIPS_GPTAB";
+ case SHT_MIPS_UCODE:
+ return "MIPS_UCODE";
+ case SHT_MIPS_DEBUG:
+ return "MIPS_DEBUG";
+ case SHT_MIPS_REGINFO:
+ return "MIPS_REGINFO";
+ case SHT_MIPS_PACKAGE:
+ return "MIPS_PACKAGE";
+ case SHT_MIPS_PACKSYM:
+ return "MIPS_PACKSYM";
+ case SHT_MIPS_RELD:
+ return "MIPS_RELD";
+ case SHT_MIPS_IFACE:
+ return "MIPS_IFACE";
+ case SHT_MIPS_CONTENT:
+ return "MIPS_CONTENT";
+ case SHT_MIPS_OPTIONS:
+ return "MIPS_OPTIONS";
+ case SHT_MIPS_SHDR:
+ return "MIPS_SHDR";
+ case SHT_MIPS_FDESC:
+ return "MIPS_FDESC";
+ case SHT_MIPS_EXTSYM:
+ return "MIPS_EXTSYM";
+ case SHT_MIPS_DENSE:
+ return "MIPS_DENSE";
+ case SHT_MIPS_PDESC:
+ return "MIPS_PDESC";
+ case SHT_MIPS_LOCSYM:
+ return "MIPS_LOCSYM";
+ case SHT_MIPS_AUXSYM:
+ return "MIPS_AUXSYM";
+ case SHT_MIPS_OPTSYM:
+ return "MIPS_OPTSYM";
+ case SHT_MIPS_LOCSTR:
+ return "MIPS_LOCSTR";
+ case SHT_MIPS_LINE:
+ return "MIPS_LINE";
+ case SHT_MIPS_RFDESC:
+ return "MIPS_RFDESC";
+ case SHT_MIPS_DELTASYM:
+ return "MIPS_DELTASYM";
+ case SHT_MIPS_DELTAINST:
+ return "MIPS_DELTAINST";
+ case SHT_MIPS_DELTACLASS:
+ return "MIPS_DELTACLASS";
+ case SHT_MIPS_DWARF:
+ return "MIPS_DWARF";
+ case SHT_MIPS_DELTADECL:
+ return "MIPS_DELTADECL";
+ case SHT_MIPS_SYMBOL_LIB:
+ return "MIPS_SYMBOL_LIB";
+ case SHT_MIPS_EVENTS:
+ return "MIPS_EVENTS";
+ case SHT_MIPS_TRANSLATE:
+ return "MIPS_TRANSLATE";
+ case SHT_MIPS_PIXIE:
+ return "MIPS_PIXIE";
+ case SHT_MIPS_XLATE:
+ return "MIPS_XLATE";
+ case SHT_MIPS_XLATE_DEBUG:
+ return "MIPS_XLATE_DEBUG";
+ case SHT_MIPS_WHIRL:
+ return "MIPS_WHIRL";
+ case SHT_MIPS_EH_REGION:
+ return "MIPS_EH_REGION";
+ case SHT_MIPS_XLATE_OLD:
+ return "MIPS_XLATE_OLD";
+ case SHT_MIPS_PDR_EXCEPTION:
+ return "MIPS_PDR_EXCEPTION";
+ case SHT_MIPS_ABIFLAGS:
+ return "MIPS_ABIFLAGS";
+ case SHT_MIPS_XHASH:
+ return "MIPS_XHASH";
+ default:
+ break;
+ }
+ return NULL;
+}
+
+bool
+mips_check_reloc_target_type (Ebl *ebl __attribute__ ((unused)), Elf64_Word sh_type)
+{
+ return (sh_type == SHT_MIPS_DWARF);
+}
+
+/* Check whether given symbol's st_value and st_size are OK despite failing
+ normal checks. */
+bool
+mips_check_special_symbol (Elf *elf,
+ const GElf_Sym *sym __attribute__ ((unused)),
+ const char *name __attribute__ ((unused)),
+ const GElf_Shdr *destshdr)
+{
+ size_t shstrndx;
+ if (elf_getshdrstrndx (elf, &shstrndx) != 0)
+ return false;
+ const char *sname = elf_strptr (elf, shstrndx, destshdr->sh_name);
+ if (sname == NULL)
+ return false;
+ return (strcmp (sname, ".got") == 0 || strcmp (sname, ".bss") == 0);
+}
+
+/* Check whether SHF_MASKPROC flags are valid. */
+bool
+mips_machine_section_flag_check (GElf_Xword sh_flags)
+{
+ return ((sh_flags &~ (SHF_MIPS_GPREL |
+ SHF_MIPS_MERGE |
+ SHF_MIPS_ADDR |
+ SHF_MIPS_STRINGS |
+ SHF_MIPS_NOSTRIP |
+ SHF_MIPS_LOCAL |
+ SHF_MIPS_NAMES |
+ SHF_MIPS_NODUPE)) == 0);
+}
+
+/* Check whether machine flags are valid. */
+bool
+mips_machine_flag_check (GElf_Word flags)
+{
+ if ((flags &~ (EF_MIPS_NOREORDER |
+ EF_MIPS_PIC |
+ EF_MIPS_CPIC |
+ EF_MIPS_UCODE |
+ EF_MIPS_ABI2 |
+ EF_MIPS_OPTIONS_FIRST |
+ EF_MIPS_32BITMODE |
+ EF_MIPS_NAN2008 |
+ EF_MIPS_FP64 |
+ EF_MIPS_ARCH_ASE_MDMX |
+ EF_MIPS_ARCH_ASE_M16 |
+ EF_MIPS_ARCH_ASE_MICROMIPS)) == 0)
+ return false;
+
+ switch(flags & EF_MIPS_MACH)
+ {
+ case EF_MIPS_MACH_3900:
+ case EF_MIPS_MACH_4010:
+ case EF_MIPS_MACH_4100:
+ case EF_MIPS_MACH_4111:
+ case EF_MIPS_MACH_4120:
+ case EF_MIPS_MACH_4650:
+ case EF_MIPS_MACH_5400:
+ case EF_MIPS_MACH_5500:
+ case EF_MIPS_MACH_5900:
+ case EF_MIPS_MACH_SB1:
+ case EF_MIPS_MACH_9000:
+ case EF_MIPS_MACH_LS2E:
+ case EF_MIPS_MACH_LS2F:
+ case EF_MIPS_MACH_GS464:
+ case EF_MIPS_MACH_GS464E:
+ case EF_MIPS_MACH_GS264E:
+ case EF_MIPS_MACH_OCTEON:
+ case EF_MIPS_MACH_OCTEON2:
+ case EF_MIPS_MACH_OCTEON3:
+ case EF_MIPS_MACH_XLR:
+ case EF_MIPS_MACH_IAMR2:
+ case 0:
+ break;
+ default:
+ return false;
+ }
+
+ switch ((flags & EF_MIPS_ABI))
+ {
+ case EF_MIPS_ABI_O32:
+ case EF_MIPS_ABI_O64:
+ case EF_MIPS_ABI_EABI32:
+ case EF_MIPS_ABI_EABI64:
+ case 0:
+ break;
+ default:
+ return false;
+ }
+
+ switch ((flags & EF_MIPS_ARCH))
+ {
+ case EF_MIPS_ARCH_1:
+ case EF_MIPS_ARCH_2:
+ case EF_MIPS_ARCH_3:
+ case EF_MIPS_ARCH_4:
+ case EF_MIPS_ARCH_5:
+ case EF_MIPS_ARCH_32:
+ case EF_MIPS_ARCH_32R2:
+ case EF_MIPS_ARCH_32R6:
+ case EF_MIPS_ARCH_64:
+ case EF_MIPS_ARCH_64R2:
+ case EF_MIPS_ARCH_64R6:
+ return true;
+ default:
+ return false;
+ }
+ return false;
+}
+
+/* copy binutils-2.34/binutils/readelf.c get_machine_flags */
+const char *
+mips_machine_flag_name (Elf64_Word orig __attribute__ ((unused)), Elf64_Word *flagref)
+{
+ if (*flagref & EF_MIPS_NOREORDER)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_NOREORDER);
+ return "noreorder";
+ }
+
+ if (*flagref & EF_MIPS_PIC)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_PIC);
+ return "pic";
+ }
+
+ if (*flagref & EF_MIPS_CPIC)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_CPIC);
+ return "cpic";
+ }
+
+ if (*flagref & EF_MIPS_UCODE)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_UCODE);
+ return "ugen_reserved";
+ }
+
+ if (*flagref & EF_MIPS_ABI2)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI2);
+ return "abi2";
+ }
+
+ if (*flagref & EF_MIPS_OPTIONS_FIRST)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_OPTIONS_FIRST);
+ return "odk first";
+ }
+
+ if (*flagref & EF_MIPS_32BITMODE)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_32BITMODE);
+ return "32bitmode";
+ }
+
+ if (*flagref & EF_MIPS_NAN2008)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_NAN2008);
+ return "nan2008";
+ }
+
+ if (*flagref & EF_MIPS_FP64)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_FP64);
+ return "fp64";
+ }
+
+ switch (*flagref & EF_MIPS_MACH)
+ {
+ case EF_MIPS_MACH_3900:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_3900);
+ return "3900";
+ case EF_MIPS_MACH_4010:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_4010);
+ return "4010";
+ case EF_MIPS_MACH_4100:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_4100);
+ return "4100";
+ case EF_MIPS_MACH_4111:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_4111);
+ return "4111";
+ case EF_MIPS_MACH_4120:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_4120);
+ return "4120";
+ case EF_MIPS_MACH_4650:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_4650);
+ return "4650";
+ case EF_MIPS_MACH_5400:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_5400);
+ return "5400";
+ case EF_MIPS_MACH_5500:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_5500);
+ return "5500";
+ case EF_MIPS_MACH_5900:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_5900);
+ return "5900";
+ case EF_MIPS_MACH_SB1:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_SB1);
+ return "sb1";
+ case EF_MIPS_MACH_9000:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_9000);
+ return "9000";
+ case EF_MIPS_MACH_LS2E:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_LS2E);
+ return "loongson-2e";
+ case EF_MIPS_MACH_LS2F:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_LS2F);
+ return "loongson-2f";
+ case EF_MIPS_MACH_GS464:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_GS464);
+ return "gs464";
+ case EF_MIPS_MACH_GS464E:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_GS464E);
+ return "gs464e";
+ case EF_MIPS_MACH_GS264E:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_GS264E);
+ return "gs264e";
+ case EF_MIPS_MACH_OCTEON:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_OCTEON);
+ return "octeon";
+ case EF_MIPS_MACH_OCTEON2:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_OCTEON2);
+ return "octeon2";
+ case EF_MIPS_MACH_OCTEON3:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_OCTEON3);
+ return "octeon3";
+ case EF_MIPS_MACH_XLR:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_XLR);
+ return "xlr";
+ case EF_MIPS_MACH_IAMR2:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH_IAMR2);
+ return "interaptiv-mr2";
+ case 0:
+ /* We simply ignore the field in this case to avoid confusion:
+ MIPS ELF does not specify EF_MIPS_MACH, it is a GNU
+ extension. */
+ break;
+ default:
+ *flagref &= ~((Elf64_Word) EF_MIPS_MACH);
+ return "unknown CPU";
+ }
+ switch (*flagref & EF_MIPS_ABI)
+ {
+ case EF_MIPS_ABI_O32:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI_O32);
+ return "o32";
+ case EF_MIPS_ABI_O64:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI_O64);
+ return "o64";
+ case EF_MIPS_ABI_EABI32:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI_EABI32);
+ return "eabi32";
+ case EF_MIPS_ABI_EABI64:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI_EABI64);
+ return "eabi64";
+ case 0:
+ /* We simply ignore the field in this case to avoid confusion:
+ MIPS ELF does not specify EF_MIPS_ABI, it is a GNU extension.
+ This means it is likely to be an o32 file, but not for
+ sure. */
+ break;
+ default:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ABI);
+ return "unknown ABI";
+ }
+
+ if (*flagref & EF_MIPS_ARCH_ASE_MDMX)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_ASE_MDMX);
+ return "mdmx";
+ }
+
+ if (*flagref & EF_MIPS_ARCH_ASE_M16)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_ASE_M16);
+ return "mips16";
+ }
+
+ if (*flagref & EF_MIPS_ARCH_ASE_MICROMIPS)
+ {
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_ASE_MICROMIPS);
+ return "micromips";
+ }
+
+ switch (*flagref & EF_MIPS_ARCH)
+ {
+ case EF_MIPS_ARCH_1:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_1);
+ return "mips1";
+ case EF_MIPS_ARCH_2:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_2);
+ return "mips2";
+ case EF_MIPS_ARCH_3:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_3);
+ return "mips3";
+ case EF_MIPS_ARCH_4:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_4);
+ return "mips4";
+ case EF_MIPS_ARCH_5:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_5);
+ return "mips5";
+ case EF_MIPS_ARCH_32:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_32);
+ return "mips32";
+ case EF_MIPS_ARCH_32R2:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_32R2);
+ return "mips32r2";
+ case EF_MIPS_ARCH_32R6:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_32R6);
+ return "mips32r6";
+ case EF_MIPS_ARCH_64:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_64);
+ return "mips64";
+ case EF_MIPS_ARCH_64R2:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_64R2);
+ return "mips64r2";
+ case EF_MIPS_ARCH_64R6:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH_64R6);
+ return "mips64r6";
+ default:
+ *flagref &= ~((Elf64_Word) EF_MIPS_ARCH);
+ return "unknown ISA";
+ }
+ return NULL;
+}
+
+/* copy binutils-2.34/binutils/readelf.c get_mips_segment_type */
+const char *
+mips_segment_type_name (int segment, char *buf __attribute__ ((unused)),
+ size_t len __attribute__ ((unused)))
+{
+ switch (segment)
+ {
+ case PT_MIPS_REGINFO:
+ return "REGINFO";
+ case PT_MIPS_RTPROC:
+ return "RTPROC";
+ case PT_MIPS_OPTIONS:
+ return "OPTIONS";
+ case PT_MIPS_ABIFLAGS:
+ return "ABIFLAGS";
+ default:
+ return NULL;
+ }
+}
+
+bool
+mips_dynamic_tag_check (int64_t tag)
+{
+ return ((tag &~ (DT_MIPS_RLD_VERSION
+ | DT_MIPS_TIME_STAMP
+ | DT_MIPS_ICHECKSUM
+ | DT_MIPS_IVERSION
+ | DT_MIPS_FLAGS
+ | DT_MIPS_BASE_ADDRESS
+ | DT_MIPS_MSYM
+ | DT_MIPS_CONFLICT
+ | DT_MIPS_LIBLIST
+ | DT_MIPS_LOCAL_GOTNO
+ | DT_MIPS_CONFLICTNO
+ | DT_MIPS_LIBLISTNO
+ | DT_MIPS_SYMTABNO
+ | DT_MIPS_UNREFEXTNO
+ | DT_MIPS_GOTSYM
+ | DT_MIPS_HIPAGENO
+ | DT_MIPS_RLD_MAP
+ | DT_MIPS_DELTA_CLASS
+ | DT_MIPS_DELTA_CLASS_NO
+ | DT_MIPS_DELTA_INSTANCE
+ | DT_MIPS_DELTA_INSTANCE_NO
+ | DT_MIPS_DELTA_RELOC
+ | DT_MIPS_DELTA_RELOC_NO
+ | DT_MIPS_DELTA_SYM
+ | DT_MIPS_DELTA_SYM_NO
+ | DT_MIPS_DELTA_CLASSSYM
+ | DT_MIPS_DELTA_CLASSSYM_NO
+ | DT_MIPS_CXX_FLAGS
+ | DT_MIPS_PIXIE_INIT
+ | DT_MIPS_SYMBOL_LIB
+ | DT_MIPS_LOCALPAGE_GOTIDX
+ | DT_MIPS_LOCAL_GOTIDX
+ | DT_MIPS_HIDDEN_GOTIDX
+ | DT_MIPS_PROTECTED_GOTIDX
+ | DT_MIPS_OPTIONS
+ | DT_MIPS_INTERFACE
+ | DT_MIPS_DYNSTR_ALIGN
+ | DT_MIPS_INTERFACE_SIZE
+ | DT_MIPS_RLD_TEXT_RESOLVE_ADDR
+ | DT_MIPS_PERF_SUFFIX
+ | DT_MIPS_COMPACT_SIZE
+ | DT_MIPS_GP_VALUE
+ | DT_MIPS_AUX_DYNAMIC
+ | DT_MIPS_PLTGOT
+ | DT_MIPS_RWPLT
+ | DT_MIPS_RLD_MAP_REL
+ | DT_MIPS_XHASH)) == 0);
+}
+
+/* copy binutils-2.34/binutils/readelf.c get_mips_dynamic_type*/
+const char *
+mips_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
+ size_t len __attribute__ ((unused)))
+{
+ switch (tag)
+ {
+ case DT_MIPS_RLD_VERSION:
+ return "MIPS_RLD_VERSION";
+ case DT_MIPS_TIME_STAMP:
+ return "MIPS_TIME_STAMP";
+ case DT_MIPS_ICHECKSUM:
+ return "MIPS_ICHECKSUM";
+ case DT_MIPS_IVERSION:
+ return "MIPS_IVERSION";
+ case DT_MIPS_FLAGS:
+ return "MIPS_FLAGS";
+ case DT_MIPS_BASE_ADDRESS:
+ return "MIPS_BASE_ADDRESS";
+ case DT_MIPS_MSYM:
+ return "MIPS_MSYM";
+ case DT_MIPS_CONFLICT:
+ return "MIPS_CONFLICT";
+ case DT_MIPS_LIBLIST:
+ return "MIPS_LIBLIST";
+ case DT_MIPS_LOCAL_GOTNO:
+ return "MIPS_LOCAL_GOTNO";
+ case DT_MIPS_CONFLICTNO:
+ return "MIPS_CONFLICTNO";
+ case DT_MIPS_LIBLISTNO:
+ return "MIPS_LIBLISTNO";
+ case DT_MIPS_SYMTABNO:
+ return "MIPS_SYMTABNO";
+ case DT_MIPS_UNREFEXTNO:
+ return "MIPS_UNREFEXTNO";
+ case DT_MIPS_GOTSYM:
+ return "MIPS_GOTSYM";
+ case DT_MIPS_HIPAGENO:
+ return "MIPS_HIPAGENO";
+ case DT_MIPS_RLD_MAP:
+ return "MIPS_RLD_MAP";
+ case DT_MIPS_RLD_MAP_REL:
+ return "MIPS_RLD_MAP_REL";
+ case DT_MIPS_DELTA_CLASS:
+ return "MIPS_DELTA_CLASS";
+ case DT_MIPS_DELTA_CLASS_NO:
+ return "MIPS_DELTA_CLASS_NO";
+ case DT_MIPS_DELTA_INSTANCE:
+ return "MIPS_DELTA_INSTANCE";
+ case DT_MIPS_DELTA_INSTANCE_NO:
+ return "MIPS_DELTA_INSTANCE_NO";
+ case DT_MIPS_DELTA_RELOC:
+ return "MIPS_DELTA_RELOC";
+ case DT_MIPS_DELTA_RELOC_NO:
+ return "MIPS_DELTA_RELOC_NO";
+ case DT_MIPS_DELTA_SYM:
+ return "MIPS_DELTA_SYM";
+ case DT_MIPS_DELTA_SYM_NO:
+ return "MIPS_DELTA_SYM_NO";
+ case DT_MIPS_DELTA_CLASSSYM:
+ return "MIPS_DELTA_CLASSSYM";
+ case DT_MIPS_DELTA_CLASSSYM_NO:
+ return "MIPS_DELTA_CLASSSYM_NO";
+ case DT_MIPS_CXX_FLAGS:
+ return "MIPS_CXX_FLAGS";
+ case DT_MIPS_PIXIE_INIT:
+ return "MIPS_PIXIE_INIT";
+ case DT_MIPS_SYMBOL_LIB:
+ return "MIPS_SYMBOL_LIB";
+ case DT_MIPS_LOCALPAGE_GOTIDX:
+ return "MIPS_LOCALPAGE_GOTIDX";
+ case DT_MIPS_LOCAL_GOTIDX:
+ return "MIPS_LOCAL_GOTIDX";
+ case DT_MIPS_HIDDEN_GOTIDX:
+ return "MIPS_HIDDEN_GOTIDX";
+ case DT_MIPS_PROTECTED_GOTIDX:
+ return "MIPS_PROTECTED_GOTIDX";
+ case DT_MIPS_OPTIONS:
+ return "MIPS_OPTIONS";
+ case DT_MIPS_INTERFACE:
+ return "MIPS_INTERFACE";
+ case DT_MIPS_DYNSTR_ALIGN:
+ return "MIPS_DYNSTR_ALIGN";
+ case DT_MIPS_INTERFACE_SIZE:
+ return "MIPS_INTERFACE_SIZE";
+ case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
+ return "MIPS_RLD_TEXT_RESOLVE_ADDR";
+ case DT_MIPS_PERF_SUFFIX:
+ return "MIPS_PERF_SUFFIX";
+ case DT_MIPS_COMPACT_SIZE:
+ return "MIPS_COMPACT_SIZE";
+ case DT_MIPS_GP_VALUE:
+ return "MIPS_GP_VALUE";
+ case DT_MIPS_AUX_DYNAMIC:
+ return "MIPS_AUX_DYNAMIC";
+ case DT_MIPS_PLTGOT:
+ return "MIPS_PLTGOT";
+ case DT_MIPS_RWPLT:
+ return "MIPS_RWPLT";
+ case DT_MIPS_XHASH:
+ return "MIPS_XHASH";
+ default:
+ return NULL;
+ }
+ return NULL;
+}
--- a/libebl/eblopenbackend.c
+++ b/libebl/eblopenbackend.c
@@ -57,6 +57,7 @@ Ebl *riscv_init (Elf *, GElf_Half, Ebl *
Ebl *csky_init (Elf *, GElf_Half, Ebl *);
Ebl *loongarch_init (Elf *, GElf_Half, Ebl *);
Ebl *arc_init (Elf *, GElf_Half, Ebl *);
+Ebl *mips_init (Elf *, GElf_Half, Ebl *);
/* This table should contain the complete list of architectures as far
as the ELF specification is concerned. */
@@ -154,6 +155,7 @@ static const struct
{ csky_init, "elf_csky", "csky", 4, EM_CSKY, ELFCLASS32, ELFDATA2LSB },
{ loongarch_init, "elf_loongarch", "loongarch", 9, EM_LOONGARCH, ELFCLASS64, ELFDATA2LSB },
{ arc_init, "elf_arc", "arc", 3, EM_ARCV2, ELFCLASS32, ELFDATA2LSB },
+ { mips_init, "elf_mips", "mips", 4, EM_MIPS, 0, 0 },
};
#define nmachines (sizeof (machines) / sizeof (machines[0]))
--- a/libelf/libelfP.h
+++ b/libelf/libelfP.h
@@ -617,4 +617,8 @@ extern void __libelf_reset_rawdata (Elf_
#define INVALID_NDX(ndx, type, data) \
unlikely ((data)->d_size / sizeof (type) <= (unsigned int) (ndx))
+#define ELF64_MIPS_R_TYPE1(i) ((i) & 0xff)
+#define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff)
+#define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff)
+#define is_debug_section_type(type) (type == SHT_PROGBITS || type == SHT_MIPS_DWARF)
#endif /* libelfP.h */
--- /dev/null
+++ b/backends/mips_cfi.c
@@ -0,0 +1,68 @@
+/* MIPS ABI-specified defaults for DWARF CFI.
+ Copyright (C) 2009 Red Hat, Inc.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <dwarf.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+int
+mips_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
+{
+ static const uint8_t abi_cfi[] =
+ {
+ DW_CFA_def_cfa, ULEB128_7 (31), ULEB128_7 (0),
+ /* Callee-saved regs. */
+ DW_CFA_same_value, ULEB128_7 (16), /* s0 */
+ DW_CFA_same_value, ULEB128_7 (17), /* s1 */
+ DW_CFA_same_value, ULEB128_7 (18), /* s2 */
+ DW_CFA_same_value, ULEB128_7 (19), /* s3 */
+ DW_CFA_same_value, ULEB128_7 (20), /* s4 */
+ DW_CFA_same_value, ULEB128_7 (21), /* s5 */
+ DW_CFA_same_value, ULEB128_7 (22), /* s6 */
+ DW_CFA_same_value, ULEB128_7 (23), /* s7 */
+ DW_CFA_same_value, ULEB128_7 (28), /* gp */
+ DW_CFA_same_value, ULEB128_7 (29), /* sp */
+ DW_CFA_same_value, ULEB128_7 (30), /* fp */
+
+ DW_CFA_val_offset, ULEB128_7 (29), ULEB128_7 (0),
+ };
+
+ abi_info->initial_instructions = abi_cfi;
+ abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
+ abi_info->data_alignment_factor = 8;
+
+ abi_info->return_address_register = 31; /* %ra */
+
+ return 0;
+}
--- /dev/null
+++ b/backends/mips_initreg.c
@@ -0,0 +1,61 @@
+/* Fetch live process registers from TID.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#if (defined(mips) || defined(__mips) || defined(__mips__) || defined(MIPS) || defined(__MIPS__)) && defined(__linux__)
+# include <sys/user.h>
+# include <sys/ptrace.h>
+#include <asm/ptrace.h>
+#endif
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+
+bool
+mips_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
+ ebl_tid_registers_t *setfunc __attribute__ ((unused)),
+ void *arg __attribute__ ((unused)))
+{
+#if (!defined(mips) && !defined(__mips) && !defined(__mips__) && !defined(MIPS) && !defined(__MIPS__)) || !defined(__linux__)
+ return false;
+#else /* __mips__ */
+/* For PTRACE_GETREGS */
+
+ struct pt_regs gregs;
+ if (ptrace (PTRACE_GETREGS, tid, 0, &gregs) != 0)
+ return false;
+ if (! setfunc (-1, 1, (Dwarf_Word *) &gregs.cp0_epc, arg))
+ return false;
+ return setfunc (0, 32, (Dwarf_Word *) &gregs.regs[0], arg);
+#endif /* __mips__ */
+}
--- /dev/null
+++ b/backends/mips_unwind.c
@@ -0,0 +1,84 @@
+/* Get previous frame state for an existing frame state.
+ Copyright (C) 2016 The Qt Company Ltd.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#define BACKEND mips_
+#define SP_REG 29
+#define FP_REG 30
+#define LR_REG 31
+#define FP_OFFSET 0
+#define LR_OFFSET 8
+#define SP_OFFSET 16
+
+#include "libebl_CPU.h"
+
+/* There was no CFI. Maybe we happen to have a frame pointer and can unwind from that? */
+
+bool
+EBLHOOK(unwind) (Ebl *ebl __attribute__ ((unused)), Dwarf_Addr pc __attribute__ ((unused)),
+ ebl_tid_registers_t *setfunc, ebl_tid_registers_get_t *getfunc,
+ ebl_pid_memory_read_t *readfunc, void *arg,
+ bool *signal_framep __attribute__ ((unused)))
+{
+ Dwarf_Word fp, lr, sp;
+
+ if (!getfunc(LR_REG, 1, &lr, arg))
+ return false;
+
+ if (lr == 0 || !setfunc(-1, 1, &lr, arg))
+ return false;
+
+ if (!getfunc(FP_REG, 1, &fp, arg))
+ fp = 0;
+
+ if (!getfunc(SP_REG, 1, &sp, arg))
+ sp = 0;
+
+ Dwarf_Word newLr, newFp, newSp;
+
+ if (!readfunc(fp + LR_OFFSET, &newLr, arg))
+ newLr = 0;
+
+ if (!readfunc(fp + FP_OFFSET, &newFp, arg))
+ newFp = 0;
+
+ newSp = fp + SP_OFFSET;
+
+ // These are not fatal if they don't work. They will just prevent unwinding at the next frame.
+ setfunc(LR_REG, 1, &newLr, arg);
+ setfunc(FP_REG, 1, &newFp, arg);
+ setfunc(SP_REG, 1, &newSp, arg);
+
+ // If the fp is invalid, we might still have a valid lr.
+ // But if the fp is valid, then the stack should be moving in the right direction.
+ return fp == 0 || newSp > sp;
+}
--- /dev/null
+++ b/backends/mips_corenote.c
@@ -0,0 +1,104 @@
+/* MIPS specific core note handling.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <elf.h>
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <sys/time.h>
+#include "libebl_CPU.h"
+
+#ifndef BITS
+# define BITS 32
+#define BACKEND mips_
+#else
+# define BITS 64
+# define BACKEND mips64_
+#endif
+
+#define PRSTATUS_REGS_SIZE (45 * (BITS / 8))
+static const Ebl_Register_Location prstatus_regs[] =
+ {
+ { .offset = 0, .regno = 0, .count = (BITS == 32 ? 40 : 34), .bits = BITS },
+ { .offset = BITS/8 * (BITS == 32 ? 41 : 35), .regno = (BITS == 32 ? 41 : 35), .count = (BITS == 32 ? 4 : 10), .bits = BITS },
+ };
+
+#define PRSTATUS_REGSET_ITEMS \
+ { \
+ .name = "pc", .type = ELF_T_ADDR, .format = 'x', \
+ .offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + ((BITS/8) * (BITS == 32 ? 40 : 34)), \
+ .group = "register", \
+ .pc_register = true \
+ }
+
+static const Ebl_Register_Location mips_fpregset_regs[] =
+ {
+ { .offset = 0, .regno = 38, .count = 32, .bits = 64 }, /* fp0-fp31 */
+ };
+
+static const Ebl_Core_Item mips_fpregset_items[] =
+ {
+ {
+ .name = "fcs", .type = ELF_T_WORD, .format = 'x',
+ .offset = 32 * 8, .group = "register"
+ },
+ {
+ .name = "fir", .type = ELF_T_WORD, .format = 'x',
+ .offset = 32 * 8 + 4, .group = "register"
+ }
+ };
+
+#if BITS == 32
+# define ULONG uint32_t
+# define ALIGN_ULONG 4
+# define TYPE_ULONG ELF_T_WORD
+#define TYPE_LONG ELF_T_SWORD
+#else
+#define ULONG uint64_t
+#define ALIGN_ULONG 8
+#define TYPE_ULONG ELF_T_XWORD
+#define TYPE_LONG ELF_T_SXWORD
+#endif
+#define PID_T int32_t
+#define UID_T uint32_t
+#define GID_T uint32_t
+#define ALIGN_PID_T 4
+#define ALIGN_UID_T 4
+#define ALIGN_GID_T 4
+#define TYPE_PID_T ELF_T_SWORD
+#define TYPE_UID_T ELF_T_WORD
+#define TYPE_GID_T ELF_T_WORD
+
+#define EXTRA_NOTES \
+ EXTRA_REGSET_ITEMS (NT_FPREGSET, 32 * 8 + 4 * 2, mips_fpregset_regs, mips_fpregset_items)
+
+#include "linux-core-note.c"
--- /dev/null
+++ b/backends/mips_regs.c
@@ -0,0 +1,135 @@
+/* Register names and numbers for mips DWARF.
+ Copyright (C) 2006 Red Hat, Inc.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <dwarf.h>
+#include <string.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+#include <system.h>
+ssize_t
+mips_register_info (Ebl *ebl __attribute__ ((unused)),
+ int regno, char *name, size_t namelen,
+ const char **prefix, const char **setname,
+ int *bits, int *type)
+{
+ if (name == NULL)
+ return 72;
+
+ if (regno < 0 || regno > 71 || namelen < 4)
+ return -1;
+
+ *prefix = "$";
+ if (regno < 38)
+ {
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ }
+ else
+ {
+ *setname = "FPU";
+ *type = DW_ATE_float;
+ *bits = 64;
+ }
+
+ if (regno < 32)
+ {
+ if (regno < 10)
+ {
+ name[0] = regno + '0';
+ namelen = 1;
+ }
+ else
+ {
+ name[0] = (regno / 10) + '0';
+ name[1] = (regno % 10) + '0';
+ namelen = 2;
+ }
+ if (regno == 28 || regno == 29 || regno == 31)
+ *type = DW_ATE_address;
+ }
+ else if (regno == 32)
+ {
+ return stpcpy (name, "lo") + 1 - name;
+ }
+ else if (regno == 33)
+ {
+ return stpcpy (name, "hi") + 1 - name;
+ }
+ else if (regno == 34)
+ {
+ return stpcpy (name, "pc") + 1 - name;
+ }
+ else if (regno == 35)
+ {
+ *type = DW_ATE_address;
+ return stpcpy (name, "bad") + 1 - name;
+ }
+ else if (regno == 36)
+ {
+ return stpcpy (name, "sr") + 1 - name;
+ }
+ else if (regno == 37)
+ {
+ *type = DW_ATE_address;
+ return stpcpy (name, "cause") + 1 - name;
+ }
+ else if (regno < 70)
+ {
+ name[0] = 'f';
+ if (regno < 38 + 10)
+ {
+ name[1] = (regno - 38) + '0';
+ namelen = 2;
+ }
+ else
+ {
+ name[1] = (regno - 38) / 10 + '0';
+ name[2] = (regno - 38) % 10 + '0';
+ namelen = 3;
+ }
+ }
+ else if (regno == 70)
+ {
+ return stpcpy (name, "fsr") + 1 - name;
+ }
+ else if (regno == 71)
+ {
+ return stpcpy (name, "fir") + 1 - name;
+ }
+
+ name[namelen++] = '\0';
+ return namelen;
+}
--- /dev/null
+++ b/backends/mips_retval.c
@@ -0,0 +1,196 @@
+/* Function return value location for Linux/mips ABI.
+ Copyright (C) 2005 Red Hat, Inc.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <dwarf.h>
+#include <string.h>
+#include <elf.h>
+#include <stdio.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+#include "libdwP.h"
+#include <stdio.h>
+
+/* $v0 or pair $v0, $v1 */
+static const Dwarf_Op loc_intreg_o32[] =
+ {
+ { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 },
+ };
+
+static const Dwarf_Op loc_intreg[] =
+ {
+ { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 8 },
+ { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 8 },
+ };
+#define nloc_intreg 1
+#define nloc_intregpair 4
+
+/* $f0 (float), or pair $f0, $f1 (double).
+ * f2/f3 are used for COMPLEX (= 2 doubles) returns in Fortran */
+static const Dwarf_Op loc_fpreg_o32[] =
+ {
+ { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 35 }, { .atom = DW_OP_piece, .number = 4 },
+ };
+
+/* $f0, or pair $f0, $f2. */
+static const Dwarf_Op loc_fpreg[] =
+ {
+ { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 8 },
+ { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 8 },
+ };
+#define nloc_fpreg 1
+#define nloc_fpregpair 4
+#define nloc_fpregquad 8
+
+/* The return value is a structure and is actually stored in stack space
+ passed in a hidden argument by the caller. But, the compiler
+ helpfully returns the address of that space in $v0. */
+static const Dwarf_Op loc_aggregate[] =
+ {
+ { .atom = DW_OP_breg2, .number = 0 }
+ };
+#define nloc_aggregate 1
+
+int
+mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+{
+ unsigned int regsize = (gelf_getclass (functypedie->cu->dbg->elf) == ELFCLASS32 ) ? 4 : 8;
+ if (!regsize)
+ return -2;
+
+ /* Start with the function's type, and get the DW_AT_type attribute,
+ which is the type of the return value. */
+
+ Dwarf_Attribute attr_mem;
+ Dwarf_Attribute *attr = dwarf_attr_integrate (functypedie, DW_AT_type, &attr_mem);
+ if (attr == NULL)
+ /* The function has no return value, like a `void' function in C. */
+ return 0;
+
+ Dwarf_Die die_mem;
+ Dwarf_Die *typedie = dwarf_formref_die (attr, &die_mem);
+ int tag = dwarf_tag (typedie);
+
+ /* Follow typedefs and qualifiers to get to the actual type. */
+ while (tag == DW_TAG_typedef
+ || tag == DW_TAG_const_type || tag == DW_TAG_volatile_type
+ || tag == DW_TAG_restrict_type)
+ {
+ attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
+ typedie = dwarf_formref_die (attr, &die_mem);
+ tag = dwarf_tag (typedie);
+ }
+
+ switch (tag)
+ {
+ case -1:
+ return -1;
+
+ case DW_TAG_subrange_type:
+ if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
+ {
+ attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
+ typedie = dwarf_formref_die (attr, &die_mem);
+ tag = dwarf_tag (typedie);
+ }
+ /* Fall through. */
+ FALLTHROUGH;
+
+ case DW_TAG_base_type:
+ case DW_TAG_enumeration_type:
+ CASE_POINTER:
+ {
+ Dwarf_Word size;
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
+ &attr_mem), &size) != 0)
+ {
+ if (dwarf_is_pointer (tag))
+ size = regsize;
+ else
+ return -1;
+ }
+ if (tag == DW_TAG_base_type)
+ {
+ Dwarf_Word encoding;
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
+ &attr_mem), &encoding) != 0)
+ return -1;
+
+#define ARCH_LOC(loc, regsize) ((regsize) == 4 ? (loc ## _o32) : (loc))
+
+ if (encoding == DW_ATE_float)
+ {
+ *locp = ARCH_LOC(loc_fpreg, regsize);
+ if (size <= regsize)
+ return nloc_fpreg;
+
+ if (size <= 2*regsize)
+ return nloc_fpregpair;
+
+ if (size <= 4*regsize)
+ return nloc_fpregquad;
+
+ goto aggregate;
+ }
+ }
+ *locp = ARCH_LOC(loc_intreg, regsize);
+ if (size <= regsize)
+ return nloc_intreg;
+ if (size <= 2*regsize)
+ return nloc_intregpair;
+
+ /* Else fall through. Shouldn't happen though (at least with gcc) */
+ }
+ FALLTHROUGH;
+
+ case DW_TAG_structure_type:
+ case DW_TAG_class_type:
+ case DW_TAG_union_type:
+ case DW_TAG_array_type:
+ aggregate:
+ *locp = loc_aggregate;
+ return nloc_aggregate;
+ case DW_TAG_unspecified_type:
+ return 0;
+ }
+
+ /* XXX We don't have a good way to return specific errors from ebl calls.
+ This value means we do not understand the type, but it is well-formed
+ DWARF and might be valid. */
+ return -2;
+}
--- a/libelf/elf_getdata.c
+++ b/libelf/elf_getdata.c
@@ -135,6 +135,119 @@ __libelf_data_type (GElf_Ehdr *ehdr, int
/* Convert the data in the current section. */
static void
+convert_data_for_mips64el (Elf_Scn *scn, int eclass,
+ int data, size_t size, Elf_Type type)
+{
+ /* Do we need to convert the data and/or adjust for alignment? */
+ if (data == MY_ELFDATA || type == ELF_T_BYTE)
+ {
+ /* In order to adapt macro GELF_R_SYM and GELF_R_TYPE on mips64, need to convert
+ relocation info(raw data). Some eu-utils use read-mmap method to map file, so
+ we need to malloc and memcpy raw data to avoid segment fault. After modification,
+ the correct value are saved in the malloced memory not in process address space. */
+ scn->data_base = malloc (size);
+ if (scn->data_base == NULL)
+ {
+ __libelf_seterrno (ELF_E_NOMEM);
+ return;
+ }
+
+ /* The copy will be appropriately aligned for direct access. */
+ memcpy (scn->data_base, scn->rawdata_base, size);
+ }
+ else
+ {
+ xfct_t fp;
+
+ scn->data_base = malloc (size);
+ if (scn->data_base == NULL)
+ {
+ __libelf_seterrno (ELF_E_NOMEM);
+ return;
+ }
+
+ /* Make sure the source is correctly aligned for the conversion
+ function to directly access the data elements. */
+ char *rawdata_source;
+ /* In order to adapt macro GELF_R_SYM and GELF_R_TYPE on mips64, need to convert
+ relocation info(raw data). Some eu-utils use read-mmap method to map file, so
+ we need to malloc and memcpy raw data to avoid segment fault. After modification,
+ the correct value are saved in the malloced memory not in process address space. */
+ rawdata_source = malloc (size);
+ if (rawdata_source == NULL)
+ {
+ __libelf_seterrno (ELF_E_NOMEM);
+ return;
+ }
+
+ /* The copy will be appropriately aligned for direct access. */
+ memcpy (rawdata_source, scn->rawdata_base, size);
+
+ /* Get the conversion function. */
+ fp = __elf_xfctstom[eclass - 1][type];
+
+ fp (scn->data_base, rawdata_source, size, 0);
+
+ if (rawdata_source != scn->rawdata_base)
+ free (rawdata_source);
+ }
+
+ scn->data_list.data.d.d_buf = scn->data_base;
+ scn->data_list.data.d.d_size = size;
+ scn->data_list.data.d.d_type = type;
+ scn->data_list.data.d.d_off = scn->rawdata.d.d_off;
+ scn->data_list.data.d.d_align = scn->rawdata.d.d_align;
+ scn->data_list.data.d.d_version = scn->rawdata.d.d_version;
+
+ scn->data_list.data.s = scn;
+
+ /* In mips64 little-endian, r_info consists of four byte fields(contains
+ three reloc types) and a 32-bit symbol index. In order to adapt
+ GELF_R_SYM and GELF_R_TYPE, need to convert r_info to get correct symbol
+ index and type. */
+ /* references:
+ https://www.linux-mips.org/pub/linux/mips/doc/ABI/elf64-2.4.pdf
+ Page40 && Page41 */
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+ if (shdr->sh_type == SHT_REL)
+ {
+ size_t sh_entsize = gelf_fsize (scn->elf, ELF_T_REL, 1, EV_CURRENT);
+ int nentries = shdr->sh_size / sh_entsize;
+ for (int cnt = 0; cnt < nentries; ++cnt)
+ {
+ Elf_Data_Scn *data_scn = (Elf_Data_Scn *) &scn->data_list.data.d;
+ Elf64_Rel *value = &((Elf64_Rel *) data_scn->d.d_buf)[cnt];
+ Elf64_Xword info = value->r_info;
+ value->r_info = (((info & 0xffffffff) << 32)
+ | ((info >> 56) & 0xff)
+ | ((info >> 40) & 0xff00)
+ | ((info >> 24) & 0xff0000)
+ | ((info >> 8) & 0xff000000));
+ ((Elf64_Rel *) data_scn->d.d_buf)[cnt] = *value;
+ }
+ }
+ else if (shdr->sh_type == SHT_RELA)
+ {
+ size_t sh_entsize = gelf_fsize (scn->elf, ELF_T_RELA, 1, EV_CURRENT);
+ int nentries = shdr->sh_size / sh_entsize;
+ for (int cnt = 0; cnt < nentries; cnt++)
+ {
+ Elf_Data_Scn *data_scn = (Elf_Data_Scn *) &scn->data_list.data.d;
+ Elf64_Rela *value = &((Elf64_Rela *) data_scn->d.d_buf)[cnt];
+ Elf64_Xword info = value->r_info;
+ value->r_info = (((info & 0xffffffff) << 32)
+ | ((info >> 56) & 0xff)
+ | ((info >> 40) & 0xff00)
+ | ((info >> 24) & 0xff0000)
+ | ((info >> 8) & 0xff000000));
+ ((Elf64_Rela *) data_scn->d.d_buf)[cnt] = *value;
+ }
+ }
+}
+
+/* Convert the data in the current section. */
+static void
convert_data (Elf_Scn *scn, int eclass,
int data, size_t size, Elf_Type type)
{
@@ -451,8 +564,23 @@ __libelf_set_data_list_rdlock (Elf_Scn *
return;
}
- /* Convert according to the version and the type. */
- convert_data (scn, elf->class,
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr = gelf_getehdr (scn->elf, &ehdr_mem);
+ if (shdr != NULL && (shdr->sh_type == SHT_RELA || shdr->sh_type == SHT_REL) &&
+ scn->elf->class == ELFCLASS64 && ehdr != NULL &&
+ ehdr->e_machine == EM_MIPS && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
+ convert_data_for_mips64el (scn, elf->class,
+ (elf->class == ELFCLASS32
+ || (offsetof (struct Elf, state.elf32.ehdr)
+ == offsetof (struct Elf, state.elf64.ehdr))
+ ? elf->state.elf32.ehdr->e_ident[EI_DATA]
+ : elf->state.elf64.ehdr->e_ident[EI_DATA]),
+ scn->rawdata.d.d_size, scn->rawdata.d.d_type);
+ else
+ /* Convert according to the version and the type. */
+ convert_data (scn, elf->class,
(elf->class == ELFCLASS32
|| (offsetof (struct Elf, state.elf32.ehdr)
== offsetof (struct Elf, state.elf64.ehdr))
--- a/libelf/elf_update.c
+++ b/libelf/elf_update.c
@@ -228,7 +228,60 @@ elf_update (Elf *elf, Elf_Cmd cmd)
size = -1;
}
else
+ {
+ /* Because we converted the relocation info in mips order when we call elf_getdata.c,
+ so we need to convert the modified data in original order bits before writing the
+ data to the file. */
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr = gelf_getehdr (scn->elf, &ehdr_mem);
+ if (shdr != NULL && (shdr->sh_type == SHT_RELA || shdr->sh_type == SHT_REL) &&
+ scn->elf->class == ELFCLASS64 &&
+ ehdr != NULL && ehdr->e_machine == EM_MIPS && ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
+ {
+ Elf_Data *d = elf_getdata (scn, NULL);
+ if (shdr->sh_type == SHT_REL)
+ {
+ size_t sh_entsize = gelf_fsize (scn->elf, ELF_T_REL, 1, EV_CURRENT);
+ int nentries = shdr->sh_size / sh_entsize;
+ for (int cnt = 0; cnt < nentries; ++cnt)
+ {
+ Elf_Data_Scn *data_scn = (Elf_Data_Scn *) d;
+ Elf64_Rel *value = &((Elf64_Rel *) data_scn->d.d_buf)[cnt];
+ Elf64_Xword info = value->r_info;
+ value->r_info = (info >> 32
+ | ((info << 56) & 0xff00000000000000)
+ | ((info << 40) & 0xff000000000000)
+ | ((info << 24) & 0xff0000000000)
+ | ((info << 8) & 0xff00000000));
+ ((Elf64_Rel *) data_scn->d.d_buf)[cnt] = *value;
+ }
+ }
+ else if (shdr->sh_type == SHT_RELA)
+ {
+ size_t sh_entsize = gelf_fsize (scn->elf, ELF_T_RELA, 1, EV_CURRENT);
+ int nentries = shdr->sh_size / sh_entsize;
+ for (int cnt = 0; cnt < nentries; cnt++)
+ {
+ Elf_Data_Scn *data_scn = (Elf_Data_Scn *) d;
+ Elf64_Rela *value = &((Elf64_Rela *) data_scn->d.d_buf)[cnt];
+ Elf64_Xword info = value->r_info;
+ value->r_info = (info >> 32
+ | ((info << 56) & 0xff00000000000000)
+ | ((info << 40) & 0xff000000000000)
+ | ((info << 24) & 0xff0000000000)
+ | ((info << 8) & 0xff00000000));
+ ((Elf64_Rela *) data_scn->d.d_buf)[cnt] = *value;
+ }
+ }
+ }
+ }
size = write_file (elf, size, change_bo, shnum);
+ }
}
out:
--- /dev/null
+++ b/backends/mips_attrs.c
@@ -0,0 +1,140 @@
+/* Object attribute tags for MIPS.
+ Copyright (C) 2024 CIP United Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+#include <dwarf.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+#define KNOWN_VALUES(...) do \
+ { \
+ static const char *table[] = { __VA_ARGS__ }; \
+ if (value < sizeof table / sizeof table[0]) \
+ *value_name = table[value]; \
+ } while (0)
+
+//copy gnu attr tags from binutils-2.34/elfcpp/mips.h
+/* Object attribute tags. */
+enum
+{
+ /* 0-3 are generic. */
+
+ /* Floating-point ABI used by this object file. */
+ Tag_GNU_MIPS_ABI_FP = 4,
+
+ /* MSA ABI used by this object file. */
+ Tag_GNU_MIPS_ABI_MSA = 8,
+};
+
+/* Object attribute values. */
+enum
+{
+ /* Values defined for Tag_GNU_MIPS_ABI_MSA. */
+
+ /* Not tagged or not using any ABIs affected by the differences. */
+ Val_GNU_MIPS_ABI_MSA_ANY = 0,
+
+ /* Using 128-bit MSA. */
+ Val_GNU_MIPS_ABI_MSA_128 = 1,
+};
+
+/* Object attribute values. */
+enum
+{
+ /* This is reserved for backward-compatibility with an earlier
+ implementation of the MIPS NaN2008 functionality. */
+ Val_GNU_MIPS_ABI_FP_NAN2008 = 8,
+};
+
+/* copy binutils-2.34/binutils/readelf.c display_mips_gnu_attribute */
+bool
+mips_check_object_attribute (Ebl *ebl __attribute__ ((unused)),
+ const char *vendor, int tag, uint64_t value,
+ const char **tag_name, const char **value_name)
+{
+ if (!strcmp (vendor, "gnu"))
+ switch (tag)
+ {
+ case Tag_GNU_MIPS_ABI_FP:
+ *tag_name = "Tag_GNU_MIPS_ABI_FP";
+ switch (value)
+ {
+ case Val_GNU_MIPS_ABI_FP_ANY:
+ *value_name = "Hard or soft float";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_DOUBLE:
+ *value_name = "Hard float (double precision)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_SINGLE:
+ *value_name = "Hard float (single precision)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_SOFT:
+ *value_name = "Soft float";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_OLD_64:
+ *value_name = "Hard float (MIPS32r2 64-bit FPU 12 callee-saved)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_XX:
+ *value_name = "Hard float (32-bit CPU, Any FPU)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_64:
+ *value_name = "Hard float (32-bit CPU, 64-bit FPU)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_64A:
+ *value_name = "Hard float compat (32-bit CPU, 64-bit FPU)";
+ return true;
+ case Val_GNU_MIPS_ABI_FP_NAN2008:
+ *value_name = "NaN 2008 compatibility";
+ return true;
+ default:
+ return true;
+ }
+ return true;
+ case Tag_GNU_MIPS_ABI_MSA:
+ *tag_name = "Tag_GNU_MIPS_ABI_MSA";
+ switch (value)
+ {
+ case Val_GNU_MIPS_ABI_MSA_ANY:
+ *value_name = "Any MSA or not";
+ return true;
+ case Val_GNU_MIPS_ABI_MSA_128:
+ *value_name = "128-bit MSA";
+ return true;
+ default:
+ return true;
+ }
+ return true;
+ }
+
+ return false;
+}
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -2219,17 +2219,41 @@ handle_relocs_rel (Ebl *ebl, GElf_Ehdr *
(long int) GELF_R_SYM (rel->r_info));
}
else if (GELF_ST_TYPE (sym->st_info) != STT_SECTION)
- printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n",
- class == ELFCLASS32 ? 10 : 18, rel->r_offset,
- likely (ebl_reloc_type_check (ebl,
- GELF_R_TYPE (rel->r_info)))
- /* Avoid the leading R_ which isn't carrying any
- information. */
- ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
- buf, sizeof (buf)) + 2
- : _("<INVALID RELOC>"),
- class == ELFCLASS32 ? 10 : 18, sym->st_value,
- elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name));
+ {
+ unsigned long inf = rel->r_info;
+ printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n",
+ class == ELFCLASS32 ? 10 : 18, rel->r_offset,
+ likely (ebl_reloc_type_check (ebl,
+ GELF_R_TYPE (rel->r_info)))
+ /* Avoid the leading R_ which isn't carrying any
+ information. */
+ ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
+ buf, sizeof (buf)) + 2
+ : _("<INVALID RELOC>"),
+ class == ELFCLASS32 ? 10 : 18, sym->st_value,
+ elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name));
+
+ /* copy binutils-2.34/binutils/readelf.c dump_relocations+1753 */
+ if(ebl->elf->class == ELFCLASS64 && ebl->elf->state.elf64.ehdr->e_machine == EM_MIPS)
+ {
+ unsigned int type2 = ELF64_MIPS_R_TYPE2 (inf);
+ unsigned int type3 = ELF64_MIPS_R_TYPE3 (inf);
+ const char * rtype2 = ebl_reloc_type_name (ebl, type2, buf, sizeof (buf)) + 2;
+ const char * rtype3 = ebl_reloc_type_name (ebl, type3, buf, sizeof (buf)) + 2;
+ printf(" Type2: ");
+ if (rtype2 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type2 & 0xffffffff);
+ else
+ printf ("%s", rtype2);
+
+ printf ("\n Type3: ");
+ if (rtype3 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type3 & 0xffffffff);
+ else
+ printf ("%s", rtype3);
+ printf("\n");
+ }
+ }
else
{
/* This is a relocation against a STT_SECTION symbol. */
@@ -2253,16 +2277,40 @@ handle_relocs_rel (Ebl *ebl, GElf_Ehdr *
(long int) (sym->st_shndx == SHN_XINDEX
? xndx : sym->st_shndx));
else
- printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n",
- class == ELFCLASS32 ? 10 : 18, rel->r_offset,
- ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info))
- /* Avoid the leading R_ which isn't carrying any
- information. */
- ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
- buf, sizeof (buf)) + 2
- : _("<INVALID RELOC>"),
- class == ELFCLASS32 ? 10 : 18, sym->st_value,
- elf_strptr (ebl->elf, shstrndx, secshdr->sh_name));
+ {
+ unsigned long inf = rel->r_info;
+ printf (" %#0*" PRIx64 " %-20s %#0*" PRIx64 " %s\n",
+ class == ELFCLASS32 ? 10 : 18, rel->r_offset,
+ ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info))
+ /* Avoid the leading R_ which isn't carrying any
+ information. */
+ ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
+ buf, sizeof (buf)) + 2
+ : _("<INVALID RELOC>"),
+ class == ELFCLASS32 ? 10 : 18, sym->st_value,
+ elf_strptr (ebl->elf, shstrndx, secshdr->sh_name));
+
+ /* copy binutils-2.34/binutils/readelf.c dump_relocations+1753 */
+ if(ebl->elf->class == ELFCLASS64 && ebl->elf->state.elf64.ehdr->e_machine == EM_MIPS)
+ {
+ unsigned int type2 = ELF64_MIPS_R_TYPE2 (inf);
+ unsigned int type3 = ELF64_MIPS_R_TYPE3 (inf);
+ const char * rtype2 = ebl_reloc_type_name (ebl, type2, buf, sizeof (buf)) + 2;
+ const char * rtype3 = ebl_reloc_type_name (ebl, type3, buf, sizeof (buf)) + 2;
+ printf(" Type2: ");
+ if (rtype2 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type2 & 0xffffffff);
+ else
+ printf ("%s", rtype2);
+
+ printf ("\n Type3: ");
+ if (rtype3 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type3 & 0xffffffff);
+ else
+ printf ("%s", rtype3);
+ printf("\n");
+ }
+ }
}
}
}
@@ -2410,19 +2458,43 @@ handle_relocs_rela (Ebl *ebl, GElf_Ehdr
(long int) GELF_R_SYM (rel->r_info));
}
else if (GELF_ST_TYPE (sym->st_info) != STT_SECTION)
- printf ("\
+ {
+ unsigned long inf = rel->r_info;
+ printf ("\
%#0*" PRIx64 " %-15s %#0*" PRIx64 " %+6" PRId64 " %s\n",
- class == ELFCLASS32 ? 10 : 18, rel->r_offset,
- likely (ebl_reloc_type_check (ebl,
- GELF_R_TYPE (rel->r_info)))
- /* Avoid the leading R_ which isn't carrying any
- information. */
- ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
- buf, sizeof (buf)) + 2
- : _("<INVALID RELOC>"),
- class == ELFCLASS32 ? 10 : 18, sym->st_value,
- rel->r_addend,
- elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name));
+ class == ELFCLASS32 ? 10 : 18, rel->r_offset,
+ likely (ebl_reloc_type_check (ebl,
+ GELF_R_TYPE (rel->r_info)))
+ /* Avoid the leading R_ which isn't carrying any
+ information. */
+ ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
+ buf, sizeof (buf)) + 2
+ : _("<INVALID RELOC>"),
+ class == ELFCLASS32 ? 10 : 18, sym->st_value,
+ rel->r_addend,
+ elf_strptr (ebl->elf, symshdr->sh_link, sym->st_name));
+
+ /* copy binutils-2.34/binutils/readelf.c dump_relocations+1753 */
+ if(ebl->elf->class == ELFCLASS64 && ebl->elf->state.elf64.ehdr->e_machine == EM_MIPS)
+ {
+ unsigned int type2 = ELF64_MIPS_R_TYPE2 (inf);
+ unsigned int type3 = ELF64_MIPS_R_TYPE3 (inf);
+ const char * rtype2 = ebl_reloc_type_name (ebl, type2, buf, sizeof (buf)) + 2;
+ const char * rtype3 = ebl_reloc_type_name (ebl, type3, buf, sizeof (buf)) + 2;
+ printf(" Type2: ");
+ if (rtype2 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type2 & 0xffffffff);
+ else
+ printf ("%s", rtype2);
+
+ printf ("\n Type3: ");
+ if (rtype3 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type3 & 0xffffffff);
+ else
+ printf ("%s", rtype3);
+ printf("\n");
+ }
+ }
else
{
/* This is a relocation against a STT_SECTION symbol. */
@@ -2446,18 +2518,42 @@ handle_relocs_rela (Ebl *ebl, GElf_Ehdr
(long int) (sym->st_shndx == SHN_XINDEX
? xndx : sym->st_shndx));
else
- printf ("\
+ {
+ unsigned long inf = rel->r_info;
+ printf ("\
%#0*" PRIx64 " %-15s %#0*" PRIx64 " %+6" PRId64 " %s\n",
- class == ELFCLASS32 ? 10 : 18, rel->r_offset,
- ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info))
- /* Avoid the leading R_ which isn't carrying any
- information. */
- ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
- buf, sizeof (buf)) + 2
- : _("<INVALID RELOC>"),
- class == ELFCLASS32 ? 10 : 18, sym->st_value,
- rel->r_addend,
- elf_strptr (ebl->elf, shstrndx, secshdr->sh_name));
+ class == ELFCLASS32 ? 10 : 18, rel->r_offset,
+ ebl_reloc_type_check (ebl, GELF_R_TYPE (rel->r_info))
+ /* Avoid the leading R_ which isn't carrying any
+ information. */
+ ? ebl_reloc_type_name (ebl, GELF_R_TYPE (rel->r_info),
+ buf, sizeof (buf)) + 2
+ : _("<INVALID RELOC>"),
+ class == ELFCLASS32 ? 10 : 18, sym->st_value,
+ rel->r_addend,
+ elf_strptr (ebl->elf, shstrndx, secshdr->sh_name));
+
+ /* copy binutils-2.34/binutils/readelf.c dump_relocations+1753 */
+ if(ebl->elf->class == ELFCLASS64 && ebl->elf->state.elf64.ehdr->e_machine == EM_MIPS)
+ {
+ unsigned int type2 = ELF64_MIPS_R_TYPE2 (inf);
+ unsigned int type3 = ELF64_MIPS_R_TYPE3 (inf);
+ const char * rtype2 = ebl_reloc_type_name (ebl, type2, buf, sizeof (buf)) + 2;
+ const char * rtype3 = ebl_reloc_type_name (ebl, type3, buf, sizeof (buf)) + 2;
+ printf(" Type2: ");
+ if (rtype2 == NULL)
+ printf (_("unrecognized: %-7lx"), (unsigned long) type2 & 0xffffffff);
+ else
+ printf ("%s", rtype2);
+
+ printf ("\n Type3: ");
+ if (rtype3 == NULL)
+ printf (_("unrecognized: %lx"), (unsigned long) type3 & 0xffffffff);
+ else
+ printf ("%s", rtype3);
+ printf("\n");
+ }
+ }
}
}
}
@@ -12043,7 +12139,7 @@ print_debug (Dwfl_Module *dwflmod, Ebl *
GElf_Shdr shdr_mem;
GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
- if (shdr != NULL && shdr->sh_type == SHT_PROGBITS)
+ if (shdr != NULL && is_debug_section_type(shdr->sh_type))
{
const char *name = elf_strptr (ebl->elf, shstrndx,
shdr->sh_name);
@@ -12073,7 +12169,7 @@ print_debug (Dwfl_Module *dwflmod, Ebl *
GElf_Shdr shdr_mem;
GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
- if (shdr != NULL && shdr->sh_type == SHT_PROGBITS)
+ if (shdr != NULL && is_debug_section_type(shdr->sh_type))
{
static const struct
{
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -214,7 +214,7 @@ TESTS = run-arextract.sh run-arsymtest.s
run-nvidia-extended-linemap-libdw.sh run-nvidia-extended-linemap-readelf.sh \
run-readelf-dw-form-indirect.sh run-strip-largealign.sh \
run-readelf-Dd.sh run-dwfl-core-noncontig.sh run-cu-dwp-section-info.sh \
- run-declfiles.sh
+ run-declfiles.sh run-readelf-reloc.sh
if !BIARCH
export ELFUTILS_DISABLE_BIARCH = 1
@@ -646,7 +646,8 @@ EXTRA_DIST = run-arextract.sh run-arsymt
testfile-dwp-5-cu-index-overflow.dwp.bz2 \
testfile-dwp-4-cu-index-overflow.bz2 \
testfile-dwp-4-cu-index-overflow.dwp.bz2 \
- testfile-dwp-cu-index-overflow.source
+ testfile-dwp-cu-index-overflow.source \
+ run-readelf-reloc.sh
if USE_VALGRIND
--- /dev/null
+++ b/tests/run-readelf-reloc.sh
@@ -0,0 +1,42 @@
+#! /bin/bash
+# Copyright (C) 2024 CIP United Inc.
+# This file is part of elfutils.
+#
+# This file 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.
+#
+# elfutils 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, see <http://www.gnu.org/licenses/>.
+
+. $srcdir/test-subr.sh
+
+tempfiles test-readelf-h.txt test-readelf-reloc.txt
+testrun ${abs_top_builddir}/src/readelf -h ${abs_top_builddir}/src/strip.o > test-readelf-h.txt
+machine=`cat test-readelf-h.txt | grep Machine`
+class=`cat test-readelf-h.txt | grep Class`
+endian=`cat test-readelf-h.txt | grep Data`
+if [[ "$machine" == *MIPS* && "$class" == *ELF64 && "$endian" == *little* ]]; then
+testrun ${abs_top_builddir}/src/readelf -r ${abs_top_builddir}/src/strip.o | head -n 12 | tail -n 10 > test-readelf-reloc.txt
+
+testrun_compare cat test-readelf-reloc.txt << EOF
+ Offset Type Value Addend Name
+ 0x0000000000000008 MIPS_GPREL16 000000000000000000 +0 .text
+ Type2: MIPS_SUB
+ Type3: MIPS_HI16
+ 0x0000000000000010 MIPS_GPREL16 000000000000000000 +0 .text
+ Type2: MIPS_SUB
+ Type3: MIPS_LO16
+ 0x0000000000000014 MIPS_CALL16 000000000000000000 +0 gelf_getehdr
+ Type2: MIPS_NONE
+ Type3: MIPS_NONE
+EOF
+fi
+
+exit 0
--- a/src/elflint.c
+++ b/src/elflint.c
@@ -936,7 +936,9 @@ section [%2d] '%s': symbol %zu (%s): non
}
if (GELF_ST_TYPE (sym->st_info) == STT_SECTION
- && GELF_ST_BIND (sym->st_info) != STB_LOCAL)
+ && GELF_ST_BIND (sym->st_info) != STB_LOCAL
+ && ehdr->e_machine != EM_MIPS
+ && strcmp (name, "_DYNAMIC_LINKING") != 0)
ERROR (_("\
section [%2d] '%s': symbol %zu (%s): non-local section symbol\n"),
idx, section_name (ebl, idx), cnt, name);
@@ -3828,6 +3830,10 @@ cannot get section header for section [%
&& ebl_bss_plt_p (ebl))
good_type = SHT_NOBITS;
+ if (ehdr->e_machine == EM_MIPS
+ && (strstr(special_sections[s].name, ".debug") != NULL))
+ good_type = SHT_MIPS_DWARF;
+
/* In a debuginfo file, any normal section can be SHT_NOBITS.
This is only invalid for DWARF sections and .shstrtab. */
if (shdr->sh_type != good_type
@@ -3988,12 +3994,21 @@ section [%2zu] '%s': size not multiple o
ERROR (_("section [%2zu] '%s'"
" contains invalid processor-specific flag(s)"
" %#" PRIx64 "\n"),
- cnt, section_name (ebl, cnt), sh_flags & SHF_MASKPROC);
+ cnt, section_name (ebl, cnt), sh_flags & SHF_MASKPROC);
sh_flags &= ~(GElf_Xword) SHF_MASKPROC;
}
if (sh_flags & SHF_MASKOS)
- if (gnuld)
- sh_flags &= ~(GElf_Xword) SHF_GNU_RETAIN;
+ {
+ if (gnuld)
+ sh_flags &= ~(GElf_Xword) SHF_GNU_RETAIN;
+ if (!ebl_machine_section_flag_check (ebl,
+ sh_flags & SHF_MASKOS))
+ ERROR (_("section [%2zu] '%s'"
+ " contains invalid os-specific flag(s)"
+ " %#" PRIx64 "\n"),
+ cnt, section_name (ebl, cnt), sh_flags & SHF_MASKOS);
+ sh_flags &= ~(GElf_Xword) SHF_MASKOS;
+ }
if (sh_flags != 0)
ERROR (_("section [%2zu] '%s' contains unknown flag(s)"
" %#" PRIx64 "\n"),
@@ -4059,6 +4074,7 @@ section [%2zu] '%s': merge flag set but
switch (shdr->sh_type)
{
case SHT_PROGBITS:
+ case SHT_MIPS_DWARF:
break;
case SHT_NOBITS:
@@ -4716,7 +4732,7 @@ program header offset in ELF header and
if (shdr != NULL
&& ((is_debuginfo && shdr->sh_type == SHT_NOBITS)
|| (! is_debuginfo
- && (shdr->sh_type == SHT_PROGBITS
+ && (is_debug_section_type(shdr->sh_type)
|| shdr->sh_type == SHT_X86_64_UNWIND)))
&& elf_strptr (ebl->elf, shstrndx, shdr->sh_name) != NULL
&& ! strcmp (".eh_frame_hdr",
--- /dev/null
+++ b/backends/mips64_corenote.c
@@ -0,0 +1,2 @@
+#define BITS 64
+#include "mips_corenote.c"
--- a/libebl/eblcorenotetypename.c
+++ b/libebl/eblcorenotetypename.c
@@ -94,6 +94,8 @@ ebl_core_note_type_name (Ebl *ebl, uint3
KNOWNSTYPE (ARM_SYSTEM_CALL);
KNOWNSTYPE (SIGINFO);
KNOWNSTYPE (FILE);
+ KNOWNSTYPE (MIPS_FP_MODE);
+ KNOWNSTYPE (MIPS_MSA);
#undef KNOWNSTYPE
default:
--- a/tests/run-allregs.sh
+++ b/tests/run-allregs.sh
@@ -2904,4 +2904,83 @@ FPU registers:
62: ft10 (ft10), float 64 bits
63: ft11 (ft11), float 64 bits
EOF
+
+# See run-readelf-mixed-corenote.sh for instructions to regenerate
+# this core file.
+regs_test testfile-mips64-core <<\EOF
+integer registers:
+ 0: $0 (0), signed 32 bits
+ 1: $1 (1), signed 32 bits
+ 2: $2 (2), signed 32 bits
+ 3: $3 (3), signed 32 bits
+ 4: $4 (4), signed 32 bits
+ 5: $5 (5), signed 32 bits
+ 6: $6 (6), signed 32 bits
+ 7: $7 (7), signed 32 bits
+ 8: $8 (8), signed 32 bits
+ 9: $9 (9), signed 32 bits
+ 10: $10 (10), signed 32 bits
+ 11: $11 (11), signed 32 bits
+ 12: $12 (12), signed 32 bits
+ 13: $13 (13), signed 32 bits
+ 14: $14 (14), signed 32 bits
+ 15: $15 (15), signed 32 bits
+ 16: $16 (16), signed 32 bits
+ 17: $17 (17), signed 32 bits
+ 18: $18 (18), signed 32 bits
+ 19: $19 (19), signed 32 bits
+ 20: $20 (20), signed 32 bits
+ 21: $21 (21), signed 32 bits
+ 22: $22 (22), signed 32 bits
+ 23: $23 (23), signed 32 bits
+ 24: $24 (24), signed 32 bits
+ 25: $25 (25), signed 32 bits
+ 26: $26 (26), signed 32 bits
+ 27: $27 (27), signed 32 bits
+ 28: $28 (28), address 32 bits
+ 29: $29 (29), address 32 bits
+ 30: $30 (30), signed 32 bits
+ 31: $31 (31), address 32 bits
+ 32: $lo (lo), signed 32 bits
+ 33: $hi (hi), signed 32 bits
+ 34: $pc (pc), signed 32 bits
+ 35: $bad (bad), address 32 bits
+ 36: $sr (sr), signed 32 bits
+ 37: $cause (cause), address 32 bits
+FPU registers:
+ 38: $f0 (f0), float 64 bits
+ 39: $f1 (f1), float 64 bits
+ 40: $f2 (f2), float 64 bits
+ 41: $f3 (f3), float 64 bits
+ 42: $f4 (f4), float 64 bits
+ 43: $f5 (f5), float 64 bits
+ 44: $f6 (f6), float 64 bits
+ 45: $f7 (f7), float 64 bits
+ 46: $f8 (f8), float 64 bits
+ 47: $f9 (f9), float 64 bits
+ 48: $f10 (f10), float 64 bits
+ 49: $f11 (f11), float 64 bits
+ 50: $f12 (f12), float 64 bits
+ 51: $f13 (f13), float 64 bits
+ 52: $f14 (f14), float 64 bits
+ 53: $f15 (f15), float 64 bits
+ 54: $f16 (f16), float 64 bits
+ 55: $f17 (f17), float 64 bits
+ 56: $f18 (f18), float 64 bits
+ 57: $f19 (f19), float 64 bits
+ 58: $f20 (f20), float 64 bits
+ 59: $f21 (f21), float 64 bits
+ 60: $f22 (f22), float 64 bits
+ 61: $f23 (f23), float 64 bits
+ 62: $f24 (f24), float 64 bits
+ 63: $f25 (f25), float 64 bits
+ 64: $f26 (f26), float 64 bits
+ 65: $f27 (f27), float 64 bits
+ 66: $f28 (f28), float 64 bits
+ 67: $f29 (f29), float 64 bits
+ 68: $f30 (f30), float 64 bits
+ 69: $f31 (f31), float 64 bits
+ 70: $fsr (fsr), float 64 bits
+ 71: $fir (fir), float 64 bits
+EOF
exit 0
--- a/tests/run-readelf-mixed-corenote.sh
+++ b/tests/run-readelf-mixed-corenote.sh
@@ -716,4 +716,101 @@ Note segment of 1408 bytes at offset 0x3
2000155000-2000157000 00122000 8192 /lib64/libc-2.27.so
EOF
+# To reproduce this core dump, do this on a mips machine:
+# $ gcc -x c <(echo 'int main () { return *(int *)0x12345678; }')
+# $ ./a.out
+testfiles testfile-mips64-core
+testrun_compare ${abs_top_builddir}/src/readelf -n testfile-mips64-core <<\EOF
+
+Note segment of 2572 bytes at offset 0x3c0:
+ Owner Data size Type
+ CORE 480 PRSTATUS
+ info.si_signo: 11, info.si_code: 0, info.si_errno: 0, cursig: 11
+ sigpend: <>
+ sighold: <>
+ pid: 1660204, ppid: 1457483, pgrp: 1660204, sid: 1457483
+ utime: 0.000000, stime: 0.012000, cutime: 0.000000, cstime: 0.000000
+ pc: 0x000000aaacce0a64, fpvalid: 1
+ bad: 0x12345678 sr: 0 cause: 0x0400ccf3
+ f0: 0x1000000800000000 f1: 0x0000000000000000 f2: 0x0000000000000000
+ f3: 0x0000000000000000 f4: 0x0000000000000000 f5: 0x0000000000000000
+ f6: 0x0000000000000000
+ 0: 0 1: 0 2: 1
+ 3: 0 4: 305419896 5: 0
+ 6: -73593800 7: 255 8: 1
+ 9: 0 10: -73593464 11: 255
+ 12: -73593448 13: 255 14: 0
+ 15: 0 16: -244869184 17: 255
+ 18: -244886336 19: 255 20: -73593472
+ 21: 255 22: -1 23: -1
+ 24: 3 25: 0 26: 3167716
+ 27: 0 28: 0x00000024 29: 0x00000000
+ 30: 49495 31: 0x00000000 lo: -73593464
+ hi: 255 bad: 0x12345678 sr: 0
+ cause: 0x0400ccf3 f0: 0x1000000800000000
+ f1: 0x0000000000000000 f2: 0x0000000000000000
+ f3: 0x0000000000000000 f4: 0x0000000000000000
+ f5: 0x0000000000000000 f6: 0x0000000000000000
+ CORE 136 PRPSINFO
+ state: 0, sname: R, zomb: 0, nice: 0, flag: 0x0000000000402600
+ uid: 1014, gid: 100, pid: 1660204, ppid: 1457483, pgrp: 1660204
+ sid: 1457483
+ fname: a.out, psargs: ./a.out
+ CORE 128 SIGINFO
+ si_signo: 11, si_errno: 1, si_code: 0
+ sender PID: 305419896, sender UID: 0
+ CORE 320 AUXV
+ SYSINFO_EHDR: 0xffff14c000
+ HWCAP: 0x7806
+ PAGESZ: 16384
+ CLKTCK: 100
+ PHDR: 0xaaacce0040
+ PHENT: 56
+ PHNUM: 9
+ BASE: 0xfff1694000
+ FLAGS: 0
+ ENTRY: 0xaaacce08d0
+ UID: 1014
+ EUID: 1014
+ GID: 100
+ EGID: 100
+ SECURE: 0
+ RANDOM: 0xfffb9d0f9c
+ EXECFN: 0xfffb9d3ff0
+ PLATFORM: 0xfffb9d0fb5
+ BASE_PLATFORM: 0xfffb9d0fac
+ NULL
+ CORE 549 FILE
+ 9 files:
+ aaacce0000-aaacce4000 00000000 16384 /tmp/a.out
+ aaaccf0000-aaaccf4000 00000000 16384 /tmp/a.out
+ fff1470000-fff165c000 00000000 2015232 /usr/lib/mips64el-linux-gnuabi64/libc.so.6
+ fff165c000-fff1668000 001ec000 49152 /usr/lib/mips64el-linux-gnuabi64/libc.so.6
+ fff1668000-fff1670000 001e8000 32768 /usr/lib/mips64el-linux-gnuabi64/libc.so.6
+ fff1670000-fff1678000 001f0000 32768 /usr/lib/mips64el-linux-gnuabi64/libc.so.6
+ fff1694000-fff16c4000 00000000 196608 /usr/lib/mips64el-linux-gnuabi64/ld.so.1
+ fff16d0000-fff16d4000 0002c000 16384 /usr/lib/mips64el-linux-gnuabi64/ld.so.1
+ fff16d4000-fff16d8000 00030000 16384 /usr/lib/mips64el-linux-gnuabi64/ld.so.1
+ CORE 264 FPREGSET
+ fcs: 0x000c0000, fir: 0x00f70501
+ f0: 0xffffffffffffffff f1: 0xffffffffffffffff
+ f2: 0xffffffffffffffff f3: 0xffffffffffffffff
+ f4: 0xffffffffffffffff f5: 0xffffffffffffffff
+ f6: 0xffffffffffffffff f7: 0xffffffffffffffff
+ f8: 0xffffffffffffffff f9: 0xffffffffffffffff
+ f10: 0xffffffffffffffff f11: 0xffffffffffffffff
+ f12: 0xffffffffffffffff f13: 0xffffffffffffffff
+ f14: 0xffffffffffffffff f15: 0xffffffffffffffff
+ f16: 0xffffffffffffffff f17: 0xffffffffffffffff
+ f18: 0xffffffffffffffff f19: 0xffffffffffffffff
+ f20: 0xffffffffffffffff f21: 0xffffffffffffffff
+ f22: 0xffffffffffffffff f23: 0xffffffffffffffff
+ f24: 0xffffffffffffffff f25: 0xffffffffffffffff
+ f26: 0xffffffffffffffff f27: 0xffffffffffffffff
+ f28: 0xffffffffffffffff f29: 0xffffffffffffffff
+ f30: 0xffffffffffffffff f31: 0xffffffffffffffff
+ LINUX 4 MIPS_FP_MODE
+ LINUX 528 MIPS_MSA
+EOF
+
exit 0
Reference in New Issue View Git Blame Copy Permalink