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LoongArch bfd support

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2021-10-22  Chenghua Xu  <xuchenghua@loongson.cn>
	    Zhensong Liu  <liuzhensong@loongson.cn>
	    Weinan Liu  <liuweinan@loongson.cn>
bfd/
	* Makefile.am: Add LoongArch.
	* archures.c: Likewise.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* cpu-loongarch.c: New.
	* elf-bfd.h: Add LoongArch.
	* elf.c: Add LoongArch elfcore_grok_xxx.
	* elfnn-loongarch.c: New.
	* elfxx-loongarch.c: New.
	* elfxx-loongarch.h: New.
	* reloc.c: Add LoongArch BFD RELOC ENUM.
	* targets.c: Add LoongArch target.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* libbfd.h: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.

include/
	* elf/common.h: Add NT_LARCH_{CPUCFG,CSR,LSX,LASX}.
	* elf/loongarch.h: New.
This commit is contained in:
liuzhensong 2021-10-22 16:42:03 +08:00 committed by Alan Modra
parent e515d93264
commit e214f8db56
20 changed files with 4519 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
bfd/Makefile.am
View File

@ -118,6 +118,7 @@ ALL_MACHINES = \
cpu-ip2k.lo \
cpu-iq2000.lo \
cpu-lm32.lo \
cpu-loongarch.lo \
cpu-m10200.lo \
cpu-m10300.lo \
cpu-m32c.lo \
@ -202,6 +203,7 @@ ALL_MACHINES_CFILES = \
cpu-ip2k.c \
cpu-iq2000.c \
cpu-lm32.c \
cpu-loongarch.c \
cpu-m10200.c \
cpu-m10300.c \
cpu-m32c.c \
@ -548,6 +550,9 @@ BFD64_BACKENDS = \
elf64-ia64.lo \
elf64-ia64-vms.lo \
elfxx-ia64.lo \
elf32-loongarch.lo \
elf64-loongarch.lo \
elfxx-loongarch.lo \
elfn32-mips.lo \
elf64-mips.lo \
elfxx-mips.lo \
@ -601,6 +606,7 @@ BFD64_BACKENDS_CFILES = \
elfn32-mips.c \
elfxx-aarch64.c \
elfxx-ia64.c \
elfxx-loongarch.c \
elfxx-mips.c \
elfxx-riscv.c \
mach-o-aarch64.c \
@ -665,6 +671,7 @@ SOURCE_CFILES = \
BUILD_CFILES = \
elf32-aarch64.c elf64-aarch64.c \
elf32-ia64.c elf64-ia64.c \
elf32-loongarch.c elf64-loongarch.c \
elf32-riscv.c elf64-riscv.c \
peigen.c pepigen.c pex64igen.c
@ -686,7 +693,7 @@ SOURCE_HFILES = \
elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \
elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \
elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \
elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \
elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \
genlink.h go32stub.h \
libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \
libpei.h libxcoff.h \
@ -842,6 +849,14 @@ elf64-ia64.c : elfnn-ia64.c
echo "#line 1 \"elfnn-ia64.c\"" > $@
$(SED) -e s/NN/64/g < $< >> $@
elf32-loongarch.c : elfnn-loongarch.c
echo "#line 1 \"elfnn-loongarch.c\"" > $@
$(SED) -e s/NN/32/g < $< >> $@
elf64-loongarch.c : elfnn-loongarch.c
echo "#line 1 \"elfnn-loongarch.c\"" > $@
$(SED) -e s/NN/64/g < $< >> $@
elf32-riscv.c : elfnn-riscv.c
echo "#line 1 \"elfnn-riscv.c\"" > $@
$(SED) -e s/NN/32/g < $< >> $@

21
bfd/Makefile.in
View File

@ -543,6 +543,7 @@ ALL_MACHINES = \
cpu-ip2k.lo \
cpu-iq2000.lo \
cpu-lm32.lo \
cpu-loongarch.lo \
cpu-m10200.lo \
cpu-m10300.lo \
cpu-m32c.lo \
@ -627,6 +628,7 @@ ALL_MACHINES_CFILES = \
cpu-ip2k.c \
cpu-iq2000.c \
cpu-lm32.c \
cpu-loongarch.c \
cpu-m10200.c \
cpu-m10300.c \
cpu-m32c.c \
@ -975,6 +977,9 @@ BFD64_BACKENDS = \
elf64-ia64.lo \
elf64-ia64-vms.lo \
elfxx-ia64.lo \
elf32-loongarch.lo \
elf64-loongarch.lo \
elfxx-loongarch.lo \
elfn32-mips.lo \
elf64-mips.lo \
elfxx-mips.lo \
@ -1028,6 +1033,7 @@ BFD64_BACKENDS_CFILES = \
elfn32-mips.c \
elfxx-aarch64.c \
elfxx-ia64.c \
elfxx-loongarch.c \
elfxx-mips.c \
elfxx-riscv.c \
mach-o-aarch64.c \
@ -1091,6 +1097,7 @@ SOURCE_CFILES = \
BUILD_CFILES = \
elf32-aarch64.c elf64-aarch64.c \
elf32-ia64.c elf64-ia64.c \
elf32-loongarch.c elf64-loongarch.c \
elf32-riscv.c elf64-riscv.c \
peigen.c pepigen.c pex64igen.c
@ -1109,7 +1116,7 @@ SOURCE_HFILES = \
elf-bfd.h elfcode.h elfcore.h elf-hppa.h elf-linker-x86.h \
elf-linux-core.h elf-nacl.h elf-s390.h elf-vxworks.h \
elfxx-aarch64.h elfxx-ia64.h elfxx-mips.h elfxx-riscv.h \
elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h \
elfxx-sparc.h elfxx-tilegx.h elfxx-x86.h elfxx-loongarch.h \
genlink.h go32stub.h \
libaout.h libbfd.h libcoff.h libecoff.h libhppa.h \
libpei.h libxcoff.h \
@ -1349,6 +1356,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-k1om.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-l1om.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-lm32.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-loongarch.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10200.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m10300.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cpu-m32c.Plo@am__quote@
@ -1442,6 +1450,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-ip2k.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-iq2000.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-lm32.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-loongarch.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32c.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m32r.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf32-m68hc11.Plo@am__quote@
@ -1492,6 +1501,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-hppa.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64-vms.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-ia64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-loongarch.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mips.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-mmix.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elf64-nfp.Plo@am__quote@
@ -1506,6 +1516,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfn32-mips.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-aarch64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-ia64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-loongarch.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-mips.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-riscv.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-sparc.Plo@am__quote@
@ -1972,6 +1983,14 @@ elf64-ia64.c : elfnn-ia64.c
echo "#line 1 \"elfnn-ia64.c\"" > $@
$(SED) -e s/NN/64/g < $< >> $@
elf32-loongarch.c : elfnn-loongarch.c
echo "#line 1 \"elfnn-loongarch.c\"" > $@
$(SED) -e s/NN/32/g < $< >> $@
elf64-loongarch.c : elfnn-loongarch.c
echo "#line 1 \"elfnn-loongarch.c\"" > $@
$(SED) -e s/NN/64/g < $< >> $@
elf32-riscv.c : elfnn-riscv.c
echo "#line 1 \"elfnn-riscv.c\"" > $@
$(SED) -e s/NN/32/g < $< >> $@

5
bfd/archures.c
View File

@ -555,6 +555,9 @@ DESCRIPTION
.#define bfd_mach_ck807 6
.#define bfd_mach_ck810 7
.#define bfd_mach_ck860 8
. bfd_arch_loongarch, {* LoongArch *}
.#define bfd_mach_loongarch32 1
.#define bfd_mach_loongarch64 2
. bfd_arch_last
. };
*/
@ -635,6 +638,7 @@ extern const bfd_arch_info_type bfd_iq2000_arch;
extern const bfd_arch_info_type bfd_k1om_arch;
extern const bfd_arch_info_type bfd_l1om_arch;
extern const bfd_arch_info_type bfd_lm32_arch;
extern const bfd_arch_info_type bfd_loongarch_arch;
extern const bfd_arch_info_type bfd_m32c_arch;
extern const bfd_arch_info_type bfd_m32r_arch;
extern const bfd_arch_info_type bfd_m68hc11_arch;
@ -724,6 +728,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
&bfd_k1om_arch,
&bfd_l1om_arch,
&bfd_lm32_arch,
&bfd_loongarch_arch,
&bfd_m32c_arch,
&bfd_m32r_arch,
&bfd_m68hc11_arch,

48
bfd/bfd-in2.h
View File

@ -1937,6 +1937,9 @@ enum bfd_architecture
#define bfd_mach_ck807 6
#define bfd_mach_ck810 7
#define bfd_mach_ck860 8
bfd_arch_loongarch, /* LoongArch */
#define bfd_mach_loongarch32 1
#define bfd_mach_loongarch64 2
bfd_arch_last
};
@ -6268,6 +6271,51 @@ assembler and not (currently) written to any object files. */
/* S12Z relocations. */
BFD_RELOC_S12Z_OPR,
/* LARCH relocations. */
BFD_RELOC_LARCH_TLS_DTPMOD32,
BFD_RELOC_LARCH_TLS_DTPREL32,
BFD_RELOC_LARCH_TLS_DTPMOD64,
BFD_RELOC_LARCH_TLS_DTPREL64,
BFD_RELOC_LARCH_TLS_TPREL32,
BFD_RELOC_LARCH_TLS_TPREL64,
BFD_RELOC_LARCH_MARK_LA,
BFD_RELOC_LARCH_MARK_PCREL,
BFD_RELOC_LARCH_SOP_PUSH_PCREL,
BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE,
BFD_RELOC_LARCH_SOP_PUSH_DUP,
BFD_RELOC_LARCH_SOP_PUSH_GPREL,
BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL,
BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT,
BFD_RELOC_LARCH_SOP_PUSH_TLS_GD,
BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL,
BFD_RELOC_LARCH_SOP_ASSERT,
BFD_RELOC_LARCH_SOP_NOT,
BFD_RELOC_LARCH_SOP_SUB,
BFD_RELOC_LARCH_SOP_SL,
BFD_RELOC_LARCH_SOP_SR,
BFD_RELOC_LARCH_SOP_ADD,
BFD_RELOC_LARCH_SOP_AND,
BFD_RELOC_LARCH_SOP_IF_ELSE,
BFD_RELOC_LARCH_SOP_POP_32_S_10_5,
BFD_RELOC_LARCH_SOP_POP_32_U_10_12,
BFD_RELOC_LARCH_SOP_POP_32_S_10_12,
BFD_RELOC_LARCH_SOP_POP_32_S_10_16,
BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2,
BFD_RELOC_LARCH_SOP_POP_32_S_5_20,
BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2,
BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2,
BFD_RELOC_LARCH_SOP_POP_32_U,
BFD_RELOC_LARCH_ADD8,
BFD_RELOC_LARCH_ADD16,
BFD_RELOC_LARCH_ADD24,
BFD_RELOC_LARCH_ADD32,
BFD_RELOC_LARCH_ADD64,
BFD_RELOC_LARCH_SUB8,
BFD_RELOC_LARCH_SUB16,
BFD_RELOC_LARCH_SUB24,
BFD_RELOC_LARCH_SUB32,
BFD_RELOC_LARCH_SUB64,
BFD_RELOC_UNUSED };
typedef enum bfd_reloc_code_real bfd_reloc_code_real_type;

15
bfd/config.bfd
View File

@ -197,6 +197,7 @@ hppa*) targ_archs=bfd_hppa_arch ;;
i[3-7]86) targ_archs=bfd_i386_arch ;;
ia16) targ_archs=bfd_i386_arch ;;
lm32) targ_archs=bfd_lm32_arch ;;
loongarch*) targ_archs=bfd_loongarch_arch ;;
m6811*|m68hc11*) targ_archs="bfd_m68hc11_arch bfd_m68hc12_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
m6812*|m68hc12*) targ_archs="bfd_m68hc12_arch bfd_m68hc11_arch bfd_m9s12x_arch bfd_m9s12xg_arch" ;;
m68*) targ_archs=bfd_m68k_arch ;;
@ -1458,6 +1459,20 @@ case "${targ}" in
targ_underscore=yes
;;
#ifdef BFD64
loongarch32-*)
targ_defvec=loongarch_elf32_vec
targ_selvecs="loongarch_elf32_vec"
want64=false
;;
loongarch64-*)
targ_defvec=loongarch_elf64_vec
targ_selvecs="loongarch_elf32_vec loongarch_elf64_vec"
want64=true
;;
#endif
# END OF targmatch.h
bpf-*-*)
echo "*** Configuration $targ is not fully supported." >&2

2
bfd/configure vendored
View File

@ -13348,6 +13348,8 @@ do
l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;;
loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;;
m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;

2
bfd/configure.ac
View File

@ -527,6 +527,8 @@ do
l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf64.lo $elf"; target_size=64 ;;
lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
loongarch_elf32_vec) tb="$tb elf32-loongarch.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf" ;;
loongarch_elf64_vec) tb="$tb elf64-loongarch.lo elf64.lo elfxx-loongarch.lo elf32.lo elf-ifunc.lo $elf"; target_size=64 ;;
m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
m32r_elf32_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;
m32r_elf32_le_vec) tb="$tb elf32-m32r.lo elf32.lo $elf" ;;

61
bfd/cpu-loongarch.c Normal file
View File

@ -0,0 +1,61 @@
/* BFD support for LoongArch.
Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Loongson Ltd.
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; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
static const bfd_arch_info_type bfd_loongarch32_arch =
{
32, /* 32 bits in a word. */
32, /* 64 bits in an address. */
8, /* 8 bits in a byte. */
bfd_arch_loongarch, /* Architecture. */
bfd_mach_loongarch32, /* Machine number - 0 for now. */
"loongarch32", /* Architecture name. */
"Loongarch32", /* Printable name. */
3, /* Section align power. */
false, /* This is the default architecture. */
bfd_default_compatible, /* Architecture comparison function. */
bfd_default_scan, /* String to architecture conversion. */
bfd_arch_default_fill, /* Default fill. */
NULL, /* Next in list. */
0,
};
const bfd_arch_info_type bfd_loongarch_arch =
{
32, /* 32 bits in a word. */
64, /* 64 bits in an address. */
8, /* 8 bits in a byte. */
bfd_arch_loongarch, /* Architecture. */
/* Machine number of LoongArch64 is larger
* so that LoongArch64 is compatible to LoongArch32. */
bfd_mach_loongarch64,
"loongarch64", /* Architecture name. */
"Loongarch64", /* Printable name. */
3, /* Section align power. */
true, /* This is the default architecture. */
bfd_default_compatible, /* Architecture comparison function. */
bfd_default_scan, /* String to architecture conversion. */
bfd_arch_default_fill, /* Default fill. */
&bfd_loongarch32_arch, /* Next in list. */
0,
};

9
bfd/elf-bfd.h
View File

@ -508,6 +508,7 @@ enum elf_target_id
I386_ELF_DATA,
IA64_ELF_DATA,
LM32_ELF_DATA,
LARCH_ELF_DATA,
M32R_ELF_DATA,
M68HC11_ELF_DATA,
M68K_ELF_DATA,
@ -2849,6 +2850,14 @@ extern char *elfcore_write_register_note
(bfd *, char *, int *, const char *, const void *, int);
extern char *elfcore_write_file_note
(bfd *, char *, int *, const void*, int);
extern char *elfcore_write_loongarch_cpucfg
(bfd *, char *, int *, const void*, int);
extern char *elfcore_write_loongarch_lbt
(bfd *, char *, int *, const void*, int);
extern char *elfcore_write_loongarch_lsx
(bfd *, char *, int *, const void*, int);
extern char *elfcore_write_loongarch_lasx
(bfd *, char *, int *, const void*, int);
/* Internal structure which holds information to be included in the
PRPSINFO section of Linux core files.

109
bfd/elf.c
View File

@ -9951,6 +9951,30 @@ elfcore_grok_gdb_tdesc (bfd *abfd, Elf_Internal_Note *note)
return elfcore_make_note_pseudosection (abfd, ".gdb-tdesc", note);
}
static bool
elfcore_grok_loongarch_cpucfg (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-cpucfg", note);
}
static bool
elfcore_grok_loongarch_lbt (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lbt", note);
}
static bool
elfcore_grok_loongarch_lsx (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lsx", note);
}
static bool
elfcore_grok_loongarch_lasx (bfd *abfd, Elf_Internal_Note *note)
{
return elfcore_make_note_pseudosection (abfd, ".reg-loongarch-lasx", note);
}
#if defined (HAVE_PRPSINFO_T)
typedef prpsinfo_t elfcore_psinfo_t;
#if defined (HAVE_PRPSINFO32_T) /* Sparc64 cross Sparc32 */
@ -10630,6 +10654,34 @@ elfcore_grok_note (bfd *abfd, Elf_Internal_Note *note)
else
return true;
case NT_LARCH_CPUCFG:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_loongarch_cpucfg (abfd, note);
else
return true;
case NT_LARCH_LBT:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_loongarch_lbt (abfd, note);
else
return true;
case NT_LARCH_LSX:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_loongarch_lsx (abfd, note);
else
return true;
case NT_LARCH_LASX:
if (note->namesz == 6
&& strcmp (note->namedata, "LINUX") == 0)
return elfcore_grok_loongarch_lasx (abfd, note);
else
return true;
case NT_PRPSINFO:
case NT_PSINFO:
if (bed->elf_backend_grok_psinfo)
@ -12210,6 +12262,55 @@ elfcore_write_arc_v2 (bfd *abfd,
note_name, NT_ARC_V2, arc_v2, size);
}
char *
elfcore_write_loongarch_cpucfg (bfd *abfd,
char *buf,
int *bufsiz,
const void *loongarch_cpucfg,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_LARCH_CPUCFG,
loongarch_cpucfg, size);
}
char *
elfcore_write_loongarch_lbt (bfd *abfd,
char *buf,
int *bufsiz,
const void *loongarch_lbt,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_LARCH_LBT, loongarch_lbt, size);
}
char *
elfcore_write_loongarch_lsx (bfd *abfd,
char *buf,
int *bufsiz,
const void *loongarch_lsx,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_LARCH_LSX, loongarch_lsx, size);
}
char *
elfcore_write_loongarch_lasx (bfd *abfd,
char *buf,
int *bufsiz,
const void *loongarch_lasx,
int size)
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_LARCH_LASX, loongarch_lasx, size);
}
/* Write the buffer of csr values in CSRS (length SIZE) into the note
buffer BUF and update *BUFSIZ. ABFD is the bfd the note is being
written into. Return a pointer to the new start of the note buffer, to
@ -12334,6 +12435,14 @@ elfcore_write_register_note (bfd *abfd,
return elfcore_write_gdb_tdesc (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-riscv-csr") == 0)
return elfcore_write_riscv_csr (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-loongarch-cpucfg") == 0)
return elfcore_write_loongarch_cpucfg (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-loongarch-lbt") == 0)
return elfcore_write_loongarch_lbt (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-loongarch-lsx") == 0)
return elfcore_write_loongarch_lsx (abfd, buf, bufsiz, data, size);
if (strcmp (section, ".reg-loongarch-lasx") == 0)
return elfcore_write_loongarch_lasx (abfd, buf, bufsiz, data, size);
return NULL;
}

3265
bfd/elfnn-loongarch.c Normal file
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661
bfd/elfxx-loongarch.c Normal file
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@ -0,0 +1,661 @@
/* LoongArch-specific support for ELF.
Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Loongson Ltd.
Based on RISC-V target.
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; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/loongarch.h"
#include "elfxx-loongarch.h"
#define ALL_ONES (~ (bfd_vma) 0)
/* This does not include any relocation information, but should be
good enough for GDB or objdump to read the file. */
static reloc_howto_type howto_table[] =
{
#define LOONGARCH_HOWTO(r_name) \
HOWTO (R_LARCH_##r_name, 0, 2, 32, false, 0, complain_overflow_signed, \
bfd_elf_generic_reloc, "R_LARCH_" #r_name, false, 0, 0xffffffff, false)
/* No relocation. */
HOWTO (R_LARCH_NONE, /* type (0). */
0, /* rightshift */
3, /* size */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_NONE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* 32 bit relocation. */
HOWTO (R_LARCH_32, /* type (1). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* 64 bit relocation. */
HOWTO (R_LARCH_64, /* type (2). */
0, /* rightshift */
4, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_64", /* name */
false, /* partial_inplace */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_RELATIVE, /* type (3). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_RELATIVE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_COPY, /* type (4). */
0, /* rightshift */
0, /* this one is variable size */
0, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_COPY", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_JUMP_SLOT, /* type (5). */
0, /* rightshift */
4, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_JUMP_SLOT", /* name */
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset */
/* Dynamic TLS relocations. */
HOWTO (R_LARCH_TLS_DTPMOD32, /* type (6). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_DTPMOD32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_TLS_DTPMOD64, /* type (7). */
0, /* rightshift */
4, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_DTPMOD64", /* name */
false, /* partial_inplace */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_TLS_DTPREL32, /* type (8). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_DTPREL32", /* name */
true, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_TLS_DTPREL64, /* type (9). */
0, /* rightshift */
4, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_DTPREL64", /* name */
true, /* partial_inplace */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_TLS_TPREL32, /* type (10). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_TPREL32", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_TLS_TPREL64, /* type (11). */
0, /* rightshift */
4, /* size */
64, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_TLS_TPREL64", /* name */
false, /* partial_inplace */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset */
HOWTO (R_LARCH_IRELATIVE, /* type (12). */
0, /* rightshift */
2, /* size */
32, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_LARCH_IRELATIVE", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
EMPTY_HOWTO(13),
EMPTY_HOWTO(14),
EMPTY_HOWTO(15),
EMPTY_HOWTO(16),
EMPTY_HOWTO(17),
EMPTY_HOWTO(18),
EMPTY_HOWTO(19),
HOWTO (R_LARCH_MARK_LA, /* type (20). */
0, /* rightshift. */
3, /* size. */
0, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_MARK_LA", /* name. */
false, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
false), /* pcrel_offset. */
HOWTO (R_LARCH_MARK_PCREL, /* type (21). */
0, /* rightshift. */
3, /* size. */
0, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_MARK_PCREL", /* name. */
false, /* partial_inplace. */
0, /* src_mask. */
0, /* dst_mask. */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_PUSH_PCREL, /* type (22). */
2, /* rightshift. */
2, /* size. */
32, /* bitsize. */
true /* FIXME: somewhat use this. */, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_PUSH_PCREL", /* name. */
false, /* partial_inplace. */
0x03ffffff, /* src_mask. */
0x03ffffff, /* dst_mask. */
false), /* pcrel_offset. */
/* type 23-37. */
LOONGARCH_HOWTO (SOP_PUSH_ABSOLUTE),
LOONGARCH_HOWTO (SOP_PUSH_DUP),
LOONGARCH_HOWTO (SOP_PUSH_GPREL),
LOONGARCH_HOWTO (SOP_PUSH_TLS_TPREL),
LOONGARCH_HOWTO (SOP_PUSH_TLS_GOT),
LOONGARCH_HOWTO (SOP_PUSH_TLS_GD),
LOONGARCH_HOWTO (SOP_PUSH_PLT_PCREL),
LOONGARCH_HOWTO (SOP_ASSERT),
LOONGARCH_HOWTO (SOP_NOT),
LOONGARCH_HOWTO (SOP_SUB),
LOONGARCH_HOWTO (SOP_SL),
LOONGARCH_HOWTO (SOP_SR),
LOONGARCH_HOWTO (SOP_ADD),
LOONGARCH_HOWTO (SOP_AND),
LOONGARCH_HOWTO (SOP_IF_ELSE),
HOWTO (R_LARCH_SOP_POP_32_S_10_5, /* type (38). */
0, /* rightshift. */
2, /* size. */
5, /* bitsize. */
false, /* pc_relative. */
10, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_10_5", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x7c00, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_U_10_12, /* type (39). */
0, /* rightshift. */
2, /* size. */
12, /* bitsize. */
false, /* pc_relative. */
10, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_U_10_12", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x3ffc00, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_10_12, /* type (40). */
0, /* rightshift. */
2, /* size. */
12, /* bitsize. */
false, /* pc_relative. */
10, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_10_12", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x3ffc00, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_10_16, /* type (41). */
0, /* rightshift. */
2, /* size. */
16, /* bitsize. */
false, /* pc_relative. */
10, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_10_16", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x3fffc00, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_10_16_S2, /* type (42). */
2, /* rightshift. */
2, /* size. */
16, /* bitsize. */
false, /* pc_relative. */
10, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_10_16_S2", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x3fffc00, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_5_20, /* type (43). */
0, /* rightshift. */
2, /* size. */
20, /* bitsize. */
false, /* pc_relative. */
5, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_5_20", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0x1fffe0, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, /* type (44). */
2, /* rightshift. */
2, /* size. */
21, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_0_5_10_16_S2", /* name. */
false, /* partial_inplace. */
0xfc0003e0, /* src_mask */
0xfc0003e0, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, /* type (45). */
2, /* rightshift. */
2, /* size. */
26, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_0_10_10_16_S2", /* name. */
false, /* partial_inplace. */
0xfc000000, /* src_mask */
0xfc000000, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SOP_POP_32_U, /* type (46). */
0, /* rightshift. */
2, /* size. */
32, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SOP_POP_32_S_U", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_ADD8, /* type (47). */
0, /* rightshift. */
2, /* size. */
8, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_ADD8", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_ADD16, /* type (48). */
0, /* rightshift. */
2, /* size. */
16, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_ADD16", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_ADD24, /* type (49). */
0, /* rightshift. */
2, /* size. */
24, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_ADD24", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_ADD32, /* type (50). */
0, /* rightshift. */
2, /* size. */
32, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_ADD32", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_ADD64, /* type (51). */
0, /* rightshift. */
4, /* size. */
64, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_ADD64", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SUB8, /* type (52). */
0, /* rightshift. */
2, /* size. */
8, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SUB8", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SUB16, /* type (53). */
0, /* rightshift. */
2, /* size. */
16, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SUB16", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SUB24, /* type (54). */
0, /* rightshift. */
2, /* size. */
24, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SUB24", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SUB32, /* type (55). */
0, /* rightshift. */
2, /* size. */
32, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SUB32", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
0xffffffff, /* dst_mask */
false), /* pcrel_offset. */
HOWTO (R_LARCH_SUB64, /* type (56). */
0, /* rightshift. */
4, /* size. */
64, /* bitsize. */
false, /* pc_relative. */
0, /* bitpos. */
complain_overflow_signed, /* complain_on_overflow. */
bfd_elf_generic_reloc, /* special_function. */
"R_LARCH_SUB64", /* name. */
false, /* partial_inplace. */
0, /* src_mask */
ALL_ONES, /* dst_mask */
false), /* pcrel_offset. */
};
struct elf_reloc_map
{
bfd_reloc_code_real_type bfd_val;
enum elf_loongarch_reloc_type elf_val;
};
static const struct elf_reloc_map larch_reloc_map[] =
{
{ BFD_RELOC_NONE, R_LARCH_NONE },
{ BFD_RELOC_32, R_LARCH_32 },
{ BFD_RELOC_64, R_LARCH_64 },
#define LOONGARCH_reloc_map(r_name) \
{ \
BFD_RELOC_LARCH_##r_name, R_LARCH_##r_name \
}
LOONGARCH_reloc_map (TLS_DTPMOD32),
LOONGARCH_reloc_map (TLS_DTPMOD64),
LOONGARCH_reloc_map (TLS_DTPREL32),
LOONGARCH_reloc_map (TLS_DTPREL64),
LOONGARCH_reloc_map (TLS_TPREL32),
LOONGARCH_reloc_map (TLS_TPREL64),
LOONGARCH_reloc_map (MARK_LA),
LOONGARCH_reloc_map (MARK_PCREL),
LOONGARCH_reloc_map (SOP_PUSH_PCREL),
LOONGARCH_reloc_map (SOP_PUSH_ABSOLUTE),
LOONGARCH_reloc_map (SOP_PUSH_DUP),
LOONGARCH_reloc_map (SOP_PUSH_GPREL),
LOONGARCH_reloc_map (SOP_PUSH_TLS_TPREL),
LOONGARCH_reloc_map (SOP_PUSH_TLS_GOT),
LOONGARCH_reloc_map (SOP_PUSH_TLS_GD),
LOONGARCH_reloc_map (SOP_PUSH_PLT_PCREL),
LOONGARCH_reloc_map (SOP_ASSERT),
LOONGARCH_reloc_map (SOP_NOT),
LOONGARCH_reloc_map (SOP_SUB),
LOONGARCH_reloc_map (SOP_SL),
LOONGARCH_reloc_map (SOP_SR),
LOONGARCH_reloc_map (SOP_ADD),
LOONGARCH_reloc_map (SOP_AND),
LOONGARCH_reloc_map (SOP_IF_ELSE),
LOONGARCH_reloc_map (SOP_POP_32_S_10_5),
LOONGARCH_reloc_map (SOP_POP_32_U_10_12),
LOONGARCH_reloc_map (SOP_POP_32_S_10_12),
LOONGARCH_reloc_map (SOP_POP_32_S_10_16),
LOONGARCH_reloc_map (SOP_POP_32_S_10_16_S2),
LOONGARCH_reloc_map (SOP_POP_32_S_5_20),
LOONGARCH_reloc_map (SOP_POP_32_S_0_5_10_16_S2),
LOONGARCH_reloc_map (SOP_POP_32_S_0_10_10_16_S2),
LOONGARCH_reloc_map (SOP_POP_32_U),
LOONGARCH_reloc_map (ADD8),
LOONGARCH_reloc_map (ADD16),
LOONGARCH_reloc_map (ADD24),
LOONGARCH_reloc_map (ADD32),
LOONGARCH_reloc_map (ADD64),
LOONGARCH_reloc_map (SUB8),
LOONGARCH_reloc_map (SUB16),
LOONGARCH_reloc_map (SUB24),
LOONGARCH_reloc_map (SUB32),
LOONGARCH_reloc_map (SUB64),
};
reloc_howto_type *
loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type)
{
size_t i;
for (i = 0; i < ARRAY_SIZE (howto_table); i++)
if (howto_table[i].type == r_type)
return &howto_table[i];
(*_bfd_error_handler) (_("%pB: unsupported relocation type %#x"),
abfd, r_type);
bfd_set_error (bfd_error_bad_value);
return NULL;
}
reloc_howto_type *
loongarch_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (larch_reloc_map); i++)
if (larch_reloc_map[i].bfd_val == code)
return loongarch_elf_rtype_to_howto (abfd,
(int) larch_reloc_map[i].elf_val);
return NULL;
}
reloc_howto_type *
loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (howto_table); i++)
if (howto_table[i].name && strcasecmp (howto_table[i].name, r_name) == 0)
return &howto_table[i];
return NULL;
}

31
bfd/elfxx-loongarch.h Normal file
View File

@ -0,0 +1,31 @@
/* LoongArch-specific backend routines.
Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Loongson Ltd.
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; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#include "elf/common.h"
#include "elf/internal.h"
extern reloc_howto_type *
loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type);
extern reloc_howto_type *
loongarch_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code);
extern reloc_howto_type *
loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name);

43
bfd/libbfd.h
View File

@ -3416,6 +3416,49 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4",
"BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4",
"BFD_RELOC_S12Z_OPR",
"BFD_RELOC_LARCH_TLS_DTPMOD32",
"BFD_RELOC_LARCH_TLS_DTPREL32",
"BFD_RELOC_LARCH_TLS_DTPMOD64",
"BFD_RELOC_LARCH_TLS_DTPREL64",
"BFD_RELOC_LARCH_TLS_TPREL32",
"BFD_RELOC_LARCH_TLS_TPREL64",
"BFD_RELOC_LARCH_MARK_LA",
"BFD_RELOC_LARCH_MARK_PCREL",
"BFD_RELOC_LARCH_SOP_PUSH_PCREL",
"BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE",
"BFD_RELOC_LARCH_SOP_PUSH_DUP",
"BFD_RELOC_LARCH_SOP_PUSH_GPREL",
"BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL",
"BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT",
"BFD_RELOC_LARCH_SOP_PUSH_TLS_GD",
"BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL",
"BFD_RELOC_LARCH_SOP_ASSERT",
"BFD_RELOC_LARCH_SOP_NOT",
"BFD_RELOC_LARCH_SOP_SUB",
"BFD_RELOC_LARCH_SOP_SL",
"BFD_RELOC_LARCH_SOP_SR",
"BFD_RELOC_LARCH_SOP_ADD",
"BFD_RELOC_LARCH_SOP_AND",
"BFD_RELOC_LARCH_SOP_IF_ELSE",
"BFD_RELOC_LARCH_SOP_POP_32_S_10_5",
"BFD_RELOC_LARCH_SOP_POP_32_U_10_12",
"BFD_RELOC_LARCH_SOP_POP_32_S_10_12",
"BFD_RELOC_LARCH_SOP_POP_32_S_10_16",
"BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2",
"BFD_RELOC_LARCH_SOP_POP_32_S_5_20",
"BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2",
"BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2",
"BFD_RELOC_LARCH_SOP_POP_32_U",
"BFD_RELOC_LARCH_ADD8",
"BFD_RELOC_LARCH_ADD16",
"BFD_RELOC_LARCH_ADD24",
"BFD_RELOC_LARCH_ADD32",
"BFD_RELOC_LARCH_ADD64",
"BFD_RELOC_LARCH_SUB8",
"BFD_RELOC_LARCH_SUB16",
"BFD_RELOC_LARCH_SUB24",
"BFD_RELOC_LARCH_SUB32",
"BFD_RELOC_LARCH_SUB64",
"@@overflow: BFD_RELOC_UNUSED@@",
};
#endif

2
bfd/po/BLD-POTFILES.in
View File

@ -1,10 +1,12 @@
bfdver.h
elf32-aarch64.c
elf32-ia64.c
elf32-loongarch.c
elf32-riscv.c
elf32-target.h
elf64-aarch64.c
elf64-ia64.c
elf64-loongarch.c
elf64-riscv.c
elf64-target.h
peigen.c

3
bfd/po/SRC-POTFILES.in
View File

@ -72,6 +72,7 @@ cpu-iq2000.c
cpu-k1om.c
cpu-l1om.c
cpu-lm32.c
cpu-loongarch.c
cpu-m10200.c
cpu-m10300.c
cpu-m32c.c
@ -262,6 +263,8 @@ elfxx-aarch64.c
elfxx-aarch64.h
elfxx-ia64.c
elfxx-ia64.h
elfxx-loongarch.c
elfxx-loongarch.h
elfxx-mips.c
elfxx-mips.h
elfxx-riscv.c

89
bfd/reloc.c
View File

@ -8171,6 +8171,95 @@ ENUM
ENUMDOC
S12Z relocations.
ENUM
BFD_RELOC_LARCH_TLS_DTPMOD32
ENUMX
BFD_RELOC_LARCH_TLS_DTPREL32
ENUMX
BFD_RELOC_LARCH_TLS_DTPMOD64
ENUMX
BFD_RELOC_LARCH_TLS_DTPREL64
ENUMX
BFD_RELOC_LARCH_TLS_TPREL32
ENUMX
BFD_RELOC_LARCH_TLS_TPREL64
ENUMX
BFD_RELOC_LARCH_MARK_LA
ENUMX
BFD_RELOC_LARCH_MARK_PCREL
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_PCREL
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_ABSOLUTE
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_DUP
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_GPREL
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_TLS_TPREL
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_TLS_GOT
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_TLS_GD
ENUMX
BFD_RELOC_LARCH_SOP_PUSH_PLT_PCREL
ENUMX
BFD_RELOC_LARCH_SOP_ASSERT
ENUMX
BFD_RELOC_LARCH_SOP_NOT
ENUMX
BFD_RELOC_LARCH_SOP_SUB
ENUMX
BFD_RELOC_LARCH_SOP_SL
ENUMX
BFD_RELOC_LARCH_SOP_SR
ENUMX
BFD_RELOC_LARCH_SOP_ADD
ENUMX
BFD_RELOC_LARCH_SOP_AND
ENUMX
BFD_RELOC_LARCH_SOP_IF_ELSE
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_10_5
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_U_10_12
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_10_12
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_10_16
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_10_16_S2
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_5_20
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_0_5_10_16_S2
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_S_0_10_10_16_S2
ENUMX
BFD_RELOC_LARCH_SOP_POP_32_U
ENUMX
BFD_RELOC_LARCH_ADD8
ENUMX
BFD_RELOC_LARCH_ADD16
ENUMX
BFD_RELOC_LARCH_ADD24
ENUMX
BFD_RELOC_LARCH_ADD32
ENUMX
BFD_RELOC_LARCH_ADD64
ENUMX
BFD_RELOC_LARCH_SUB8
ENUMX
BFD_RELOC_LARCH_SUB16
ENUMX
BFD_RELOC_LARCH_SUB24
ENUMX
BFD_RELOC_LARCH_SUB32
ENUMX
BFD_RELOC_LARCH_SUB64
ENUMDOC
LARCH relocations.
ENDSENUM
BFD_RELOC_UNUSED
CODE_FRAGMENT

8
bfd/targets.c
View File

@ -768,6 +768,8 @@ extern const bfd_target l1om_elf64_vec;
extern const bfd_target l1om_elf64_fbsd_vec;
extern const bfd_target lm32_elf32_vec;
extern const bfd_target lm32_elf32_fdpic_vec;
extern const bfd_target loongarch_elf64_vec;
extern const bfd_target loongarch_elf32_vec;
extern const bfd_target m32c_elf32_vec;
extern const bfd_target m32r_elf32_vec;
extern const bfd_target m32r_elf32_le_vec;
@ -1359,6 +1361,12 @@ static const bfd_target * const _bfd_target_vector[] =
&z80_elf32_vec,
&z8k_coff_vec,
#ifdef BFD64
&loongarch_elf32_vec,
&loongarch_elf64_vec,
#endif
#endif /* not SELECT_VECS */
/* Always support S-records, for convenience. */

12
include/elf/common.h
View File

@ -686,8 +686,18 @@
/* note name must be "LINUX". */
#define NT_ARC_V2 0x600 /* ARC HS accumulator/extra registers. */
/* note name must be "LINUX". */
#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */
#define NT_LARCH_CPUCFG 0xa00 /* LoongArch CPU config registers */
/* note name must be "LINUX". */
#define NT_LARCH_CSR 0xa01 /* LoongArch Control State Registers */
/* note name must be "LINUX". */
#define NT_LARCH_LSX 0xa02 /* LoongArch SIMD eXtension registers */
/* note name must be "LINUX". */
#define NT_LARCH_LASX 0xa03 /* LoongArch Advanced SIMD eXtension registers */
/* note name must be "LINUX". */
#define NT_LARCH_LBT 0xa04 /* LoongArch Binary Translation registers */
/* note name must be "CORE". */
#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */
/* note name must be "LINUX". */
#define NT_SIGINFO 0x53494749 /* Fields of siginfo_t. */
#define NT_FILE 0x46494c45 /* Description of mapped files. */

119
include/elf/loongarch.h Normal file
View File

@ -0,0 +1,119 @@
/* Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Loongson Ltd.
This file is part of GNU Binutils.
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; see the file COPYING3. If not,
see <http://www.gnu.org/licenses/>. */
#ifndef _ELF_LOONGARCH_H
#define _ELF_LOONGARCH_H
#include "elf/reloc-macros.h"
#include "libiberty.h"
START_RELOC_NUMBERS (elf_loongarch_reloc_type)
/* Used by the dynamic linker. */
RELOC_NUMBER (R_LARCH_NONE, 0)
RELOC_NUMBER (R_LARCH_32, 1)
RELOC_NUMBER (R_LARCH_64, 2)
RELOC_NUMBER (R_LARCH_RELATIVE, 3)
RELOC_NUMBER (R_LARCH_COPY, 4)
RELOC_NUMBER (R_LARCH_JUMP_SLOT, 5)
RELOC_NUMBER (R_LARCH_TLS_DTPMOD32, 6)
RELOC_NUMBER (R_LARCH_TLS_DTPMOD64, 7)
RELOC_NUMBER (R_LARCH_TLS_DTPREL32, 8)
RELOC_NUMBER (R_LARCH_TLS_DTPREL64, 9)
RELOC_NUMBER (R_LARCH_TLS_TPREL32, 10)
RELOC_NUMBER (R_LARCH_TLS_TPREL64, 11)
RELOC_NUMBER (R_LARCH_IRELATIVE, 12)
/* Reserved for future relocs that the dynamic linker must understand. */
/* Used by the static linker for relocating .text. */
RELOC_NUMBER (R_LARCH_MARK_LA, 20)
RELOC_NUMBER (R_LARCH_MARK_PCREL, 21)
RELOC_NUMBER (R_LARCH_SOP_PUSH_PCREL, 22)
RELOC_NUMBER (R_LARCH_SOP_PUSH_ABSOLUTE, 23)
RELOC_NUMBER (R_LARCH_SOP_PUSH_DUP, 24)
RELOC_NUMBER (R_LARCH_SOP_PUSH_GPREL, 25)
RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_TPREL, 26)
RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GOT, 27)
RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GD, 28)
RELOC_NUMBER (R_LARCH_SOP_PUSH_PLT_PCREL, 29)
RELOC_NUMBER (R_LARCH_SOP_ASSERT, 30)
RELOC_NUMBER (R_LARCH_SOP_NOT, 31)
RELOC_NUMBER (R_LARCH_SOP_SUB, 32)
RELOC_NUMBER (R_LARCH_SOP_SL, 33)
RELOC_NUMBER (R_LARCH_SOP_SR, 34)
RELOC_NUMBER (R_LARCH_SOP_ADD, 35)
RELOC_NUMBER (R_LARCH_SOP_AND, 36)
RELOC_NUMBER (R_LARCH_SOP_IF_ELSE, 37)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_5, 38)
RELOC_NUMBER (R_LARCH_SOP_POP_32_U_10_12, 39)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_12, 40)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16, 41)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16_S2, 42)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_5_20, 43)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, 44)
RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, 45)
RELOC_NUMBER (R_LARCH_SOP_POP_32_U, 46)
/* Used by the static linker for relocating non .text. */
RELOC_NUMBER (R_LARCH_ADD8, 47)
RELOC_NUMBER (R_LARCH_ADD16, 48)
RELOC_NUMBER (R_LARCH_ADD24, 49)
RELOC_NUMBER (R_LARCH_ADD32, 50)
RELOC_NUMBER (R_LARCH_ADD64, 51)
RELOC_NUMBER (R_LARCH_SUB8, 52)
RELOC_NUMBER (R_LARCH_SUB16, 53)
RELOC_NUMBER (R_LARCH_SUB24, 54)
RELOC_NUMBER (R_LARCH_SUB32, 55)
RELOC_NUMBER (R_LARCH_SUB64, 56)
/* I don't know what it is. Existing in almost all other arch. */
RELOC_NUMBER (R_LARCH_GNU_VTINHERIT, 57)
RELOC_NUMBER (R_LARCH_GNU_VTENTRY, 58)
END_RELOC_NUMBERS (R_LARCH_count)
/* Processor specific flags for the ELF header e_flags field. */
#define EF_LOONGARCH_ABI_ILP32 0b01
#define EF_LOONGARCH_ABI_LP64 0b11
#define EF_LOONGARCH_ABI_MASK 0b11
#define EF_LOONGARCH_FLOAT_ABI_SOFT 0b001100
#define EF_LOONGARCH_FLOAT_ABI_SINGLE 0b001000
#define EF_LOONGARCH_FLOAT_ABI_DOUBLE 0b000000
#define EF_LOONGARCH_FLOAT_ABI_MASK 0b111100
#define EF_LOONGARCH_IS_LP64(abi) \
((abi & EF_LOONGARCH_ABI_MASK) == EF_LOONGARCH_ABI_LP64)
#define EF_LOONGARCH_IS_ILP32(abi) \
((abi & EF_LOONGARCH_ABI_MASK) == EF_LOONGARCH_ABI_ILP32)
#define EF_LOONGARCH_IS_SOFT_FLOAT(abi) \
((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_SOFT)
#define EF_LOONGARCH_IS_SINGLE_FLOAT(abi) \
((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_SINGLE)
#define EF_LOONGARCH_IS_DOUBLE_FLOAT(abi) \
((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_DOUBLE)
#define EF_LOONGARCH_ABI (EF_LOONGARCH_ABI_MASK | EF_LOONGARCH_FLOAT_ABI_MASK)
#endif /* _ELF_LOONGARCH_H */