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ELF: Don't generate unused section symbols

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For ELF targets, section symbols are required only for relocations.
With -ffunction-sections -fdata-sections, there can be many unused
section symbols.  Sizes of libstdc++.a on Linux/x86-64 in GCC 11 are

With unused section symbols   : 39411698 bytes
Without unused section symbols: 39227002 bytes

The unused section symbols in libstdc++.a occupy more than 180 KB.

Add BSF_SECTION_SYM_USED to indicate if a section symbol should be
included in the symbol table.  The BSF_SECTION_SYM_USED should be set
if the section symbol is used for relocation or the section symbol is
always included in the symbol table.

Add keep_unused_section_symbols to bfd_target to indicate if unused
section symbols should be kept.  If TARGET_KEEP_UNUSED_SECTION_SYMBOLS
is defined as FALSE, unused ection symbols will be removed.

Tested on Linux/x86.  Other ELF backends need to:

1. Define TARGET_KEEP_UNUSED_SECTION_SYMBOLS to FALSE.
2. Mark used section symbols in assembler backend.
3. Remove unused section symbols from expected assembler and linker
outputs.

bfd/

	PR 27109
	* aix386-core.c (core_aix386_vec): Initialize
	keep_unused_section_symbol to TARGET_KEEP_UNUSED_SECTION_SYMBOLS.
	* aout-target.h (MY (vec)): Likewise.
	* binary.c (binary_vec): Likewise.
	* cisco-core.c (core_cisco_be_vec): Likewise.
	(core_cisco_le_vec): Likewise.
	* coff-alpha.c (alpha_ecoff_le_vec): Likewise.
	* coff-i386.c (TARGET_SYM): Likewise.
	(TARGET_SYM_BIG): Likewise.
	* coff-ia64.c (TARGET_SYM): Likewise.
	* coff-mips.c (mips_ecoff_le_vec): Likewise.
	(mips_ecoff_be_vec): Likewise.
	(mips_ecoff_bele_vec): Likewise.
	* coff-rs6000.c (rs6000_xcoff_vec): Likewise.
	(powerpc_xcoff_vec): Likewise.
	* coff-sh.c (sh_coff_small_vec): Likewise.
	(sh_coff_small_le_vec): Likewise.
	* coff-tic30.c (tic30_coff_vec): Likewise.
	* coff-tic54x.c (tic54x_coff0_vec): Likewise.
	(tic54x_coff0_beh_vec): Likewise.
	(tic54x_coff1_vec): Likewise.
	(tic54x_coff1_beh_vec): Likewise.
	(tic54x_coff2_vec): Likewise.
	(tic54x_coff2_beh_vec): Likewise.
	* coff-x86_64.c (TARGET_SYM): Likewise.
	(TARGET_SYM_BIG): Likewise.
	* coff64-rs6000.c (rs6000_xcoff64_vec): Likewise.
	(rs6000_xcoff64_aix_vec): Likewise.
	* coffcode.h (CREATE_BIG_COFF_TARGET_VEC): Likewise.
	(CREATE_BIGHDR_COFF_TARGET_VEC): Likewise.
	(CREATE_LITTLE_COFF_TARGET_VEC): Likewise.
	* elfxx-target.h (TARGET_BIG_SYM): Likewise.
	(TARGET_LITTLE_SYM): Likewise.
	* hppabsd-core.c (core_hppabsd_vec): Likewise.
	* hpux-core.c (core_hpux_vec): Likewise.
	* i386msdos.c (i386_msdos_vec): Likewise.
	* ihex.c (ihex_vec): Likewise.
	* irix-core.c (core_irix_vec): Likewise.
	* mach-o-target.c (TARGET_NAME): Likewise.
	* mmo.c (mmix_mmo_vec): Likewise.
	* netbsd-core.c (core_netbsd_vec): Likewise.
	* osf-core.c (core_osf_vec): Likewise.
	* pdp11.c (MY (vec)): Likewise.
	* pef.c (pef_vec): Likewise.
	(pef_xlib_vec): Likewise.
	* plugin.c (plugin_vec): Likewise.
	* ppcboot.c (powerpc_boot_vec): Likewise.
	* ptrace-core.c (core_ptrace_vec): Likewise.
	* sco5-core.c (core_sco5_vec): Likewise.
	* som.c (hppa_som_vec): Likewise.
	* srec.c (srec_vec): Likewise.
	(symbolsrec_vec): Likewise.
	* tekhex.c (tekhex_vec): Likewise.
	* trad-core.c (core_trad_vec): Likewise.
	* verilog.c (verilog_vec): Likewise.
	* vms-alpha.c (alpha_vms_vec): Likewise.
	* vms-lib.c (alpha_vms_lib_txt_vec): Likewise.
	* wasm-module.c (wasm_vec): Likewise.
	* xsym.c (sym_vec): Likewise.
	* elf.c (ignore_section_sym): Return TRUE if BSF_SECTION_SYM_USED
	isn't set.
	(elf_map_symbols): Don't include ignored section symbols.
	* elfcode.h (elf_slurp_symbol_table): Also set
	BSF_SECTION_SYM_USED on STT_SECTION symbols.
	* elflink.c (bfd_elf_final_link): Generated section symbols only
	when emitting relocations or reqired.
	* elfxx-x86.h (TARGET_KEEP_UNUSED_SECTION_SYMBOLS): New.
	* syms.c (BSF_SECTION_SYM_USED): New.
	* targets.c (TARGET_KEEP_UNUSED_SECTION_SYMBOLS): New.
	(bfd_target): Add keep_unused_section_symbols.
	(bfd_keep_unused_section_symbols): New.
	* bfd-in2.h: Regenerated.

binutils/

	PR 27109
	* objcopy.c (copy_object): Handle section symbols for
	non-relocatable inputs.
	* testsuite/binutils-all/readelf.exp (readelf_test): Check
	is_elf_unused_section_symbols.
	* testsuite/binutils-all/readelf.s-64: Updated.
	* testsuite/binutils-all/readelf.ss: Likewise.
	* testsuite/binutils-all/readelf.ss-64: Likewise.
	* testsuite/binutils-all/readelf.s-64-unused: New file.
	* testsuite/binutils-all/readelf.ss-64-unused: Likewise.
	* testsuite/binutils-all/readelf.ss-unused: Likewise.
	* testsuite/lib/binutils-common.exp
	(is_elf_unused_section_symbols): New proc.

gas/ChangeLog:

	PR 27109
	* read.c (s_reloc): Call symbol_mark_used_in_reloc on the
	section symbol.
	* subsegs.c (subseg_set_rest): Set BSF_SECTION_SYM_USED if needed.
	* write.c (adjust_reloc_syms): Call symbol_mark_used_in_reloc
	on the section symbol.
	(set_symtab): Don't generate unused section symbols.
	(maybe_generate_build_notes): Call symbol_mark_used_in_reloc
	on the section symbol.
	* config/obj-elf.c (elf_adjust_symtab): Call
	symbol_mark_used_in_reloc on the group signature symbol.
	* testsuite/gas/cfi/cfi-label.d: Remove unused section symbols
	from expected output.
	* testsuite/gas/elf/elf.exp (run_elf_list_test): Check
	is_elf_unused_section_symbols.
	* testsuite/gas/elf/section2.e: Updated.
	* testsuite/gas/elf/section2.e-unused: New file.
	* testsuite/gas/elf/symver.d: Remove unused section symbols.
	* testsuite/gas/i386/ilp32/elf/symver.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-1.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-3.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-size-5.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-unwind.d: Likewise.
	* testsuite/gas/i386/size-1.d: Likewise.
	* testsuite/gas/i386/size-3.d: Likewise.
	* testsuite/gas/i386/svr4.d: Likewise.
	* testsuite/gas/i386/x86-64-size-1.d: Likewise.
	* testsuite/gas/i386/x86-64-size-3.d: Likewise.
	* testsuite/gas/i386/x86-64-size-5.d: Likewise.
	* testsuite/gas/i386/x86-64-unwind.d: Likewise.

ld/

	PR 27109
	* testsuite/ld-elf/export-class.sd: Adjust the expected output.
	* testsuite/ld-elf/loadaddr3b.d: Likewise.
	* testsuite/ld-i386/ibt-plt-1.d: Likewise.
	* testsuite/ld-i386/ibt-plt-2a.d: Likewise.
	* testsuite/ld-i386/ibt-plt-2c.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3a.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3c.d: Likewise.
	* testsuite/ld-i386/pr19636-1d.d: Likewise.
	* testsuite/ld-i386/pr19636-1l.d: Likewise.
	* testsuite/ld-i386/pr19636-2c.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-i386-now.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-local-i386-now.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-local-x86-64-now.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-x86-64-now.d: Likewise.
	* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
	* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
	* testsuite/ld-ifunc/pr17154-i386-now.d: Likewise.
	* testsuite/ld-ifunc/pr17154-i386.d: Likewise.
	* testsuite/ld-ifunc/pr17154-x86-64-now.d: Likewise.
	* testsuite/ld-ifunc/pr17154-x86-64.d: Likewise.
	* testsuite/ld-x86-64/bnd-branch-1-now.d: Likewise.
	* testsuite/ld-x86-64/bnd-ifunc-1-now.d: Likewise.
	* testsuite/ld-x86-64/bnd-ifunc-2-now.d: Likewise.
	* testsuite/ld-x86-64/bnd-ifunc-2.d: Likewise.
	* testsuite/ld-x86-64/bnd-plt-1-now.d: Likewise.
	* testsuite/ld-x86-64/bnd-plt-1.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-1-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-1.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2a.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2c-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2c.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3a-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3a.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3c-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4e.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7d.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2l.d: Likewise.
	* testsuite/ld-x86-64/pr20253-1d.d: Likewise.
	* testsuite/ld-x86-64/pr20253-1h.d: Likewise.
	* testsuite/ld-x86-64/pr21038b-now.d: Likewise.
	* testsuite/ld-x86-64/pr21038b.d: Likewise.
	* testsuite/ld-x86-64/pr21038c-now.d: Likewise.
	* testsuite/ld-x86-64/pr21038c.d: Likewise.
	* testsuite/ld-x86-64/pr23854.d: Likewise.
	* testsuite/ld-x86-64/pr25416-3.d: Likewise.
	* testsuite/ld-x86-64/pr25416-4.d: Likewise.
	* testsuite/ld-i386/plt-pic.pd: Likewise.
	* testsuite/ld-i386/plt-pic2.dd: Likewise.
	* testsuite/ld-i386/plt.pd: Likewise.
	* testsuite/ld-i386/plt2.dd: Likewise.
	* testsuite/ld-i386/tlsbin.rd: Likewise.
	* testsuite/ld-i386/tlsbin2.rd: Likewise.
	* testsuite/ld-i386/tlsbindesc.rd: Likewise.
	* testsuite/ld-i386/tlsdesc.rd: Likewise.
	* testsuite/ld-i386/tlsgdesc.rd: Likewise.
	* testsuite/ld-i386/tlsnopic.rd: Likewise.
	* testsuite/ld-i386/tlspic.rd: Likewise.
	* testsuite/ld-i386/tlspic2.rd: Likewise.
	* testsuite/ld-x86-64/mpx3.dd: Likewise.
	* testsuite/ld-x86-64/mpx3n.dd: Likewise.
	* testsuite/ld-x86-64/mpx4.dd: Likewise.
	* testsuite/ld-x86-64/mpx4n.dd: Likewise.
	* testsuite/ld-x86-64/pe-x86-64-1.od: Likewise.
	* testsuite/ld-x86-64/pe-x86-64-2.od: Likewise.
	* testsuite/ld-x86-64/pe-x86-64-3.od: Likewise.
	* testsuite/ld-x86-64/pe-x86-64-4.od: Likewise.
	* testsuite/ld-x86-64/plt.pd: Likewise.
	* testsuite/ld-x86-64/plt2.dd: Likewise.
	* testsuite/ld-x86-64/tlsbin.rd: Likewise.
	* testsuite/ld-x86-64/tlsbin2.rd: Likewise.
	* testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
	* testsuite/ld-x86-64/tlsdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlsgdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlspic.rd: Likewise.
	* testsuite/ld-x86-64/tlspic2.rd: Likewise.
	* testsuite/ld-elf/sec64k.exp: Check
	is_elf_unused_section_symbols.
This commit is contained in:
H.J. Lu 2021-01-07 06:42:00 -08:00
parent 3b288c8e2e
commit d1bcae833b
162 changed files with 808 additions and 521 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
bfd/ChangeLog
View File

@ -1,3 +1,79 @@
2021-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR 27109
* aix386-core.c (core_aix386_vec): Initialize
keep_unused_section_symbol to TARGET_KEEP_UNUSED_SECTION_SYMBOLS.
* aout-target.h (MY (vec)): Likewise.
* binary.c (binary_vec): Likewise.
* cisco-core.c (core_cisco_be_vec): Likewise.
(core_cisco_le_vec): Likewise.
* coff-alpha.c (alpha_ecoff_le_vec): Likewise.
* coff-i386.c (TARGET_SYM): Likewise.
(TARGET_SYM_BIG): Likewise.
* coff-ia64.c (TARGET_SYM): Likewise.
* coff-mips.c (mips_ecoff_le_vec): Likewise.
(mips_ecoff_be_vec): Likewise.
(mips_ecoff_bele_vec): Likewise.
* coff-rs6000.c (rs6000_xcoff_vec): Likewise.
(powerpc_xcoff_vec): Likewise.
* coff-sh.c (sh_coff_small_vec): Likewise.
(sh_coff_small_le_vec): Likewise.
* coff-tic30.c (tic30_coff_vec): Likewise.
* coff-tic54x.c (tic54x_coff0_vec): Likewise.
(tic54x_coff0_beh_vec): Likewise.
(tic54x_coff1_vec): Likewise.
(tic54x_coff1_beh_vec): Likewise.
(tic54x_coff2_vec): Likewise.
(tic54x_coff2_beh_vec): Likewise.
* coff-x86_64.c (TARGET_SYM): Likewise.
(TARGET_SYM_BIG): Likewise.
* coff64-rs6000.c (rs6000_xcoff64_vec): Likewise.
(rs6000_xcoff64_aix_vec): Likewise.
* coffcode.h (CREATE_BIG_COFF_TARGET_VEC): Likewise.
(CREATE_BIGHDR_COFF_TARGET_VEC): Likewise.
(CREATE_LITTLE_COFF_TARGET_VEC): Likewise.
* elfxx-target.h (TARGET_BIG_SYM): Likewise.
(TARGET_LITTLE_SYM): Likewise.
* hppabsd-core.c (core_hppabsd_vec): Likewise.
* hpux-core.c (core_hpux_vec): Likewise.
* i386msdos.c (i386_msdos_vec): Likewise.
* ihex.c (ihex_vec): Likewise.
* irix-core.c (core_irix_vec): Likewise.
* mach-o-target.c (TARGET_NAME): Likewise.
* mmo.c (mmix_mmo_vec): Likewise.
* netbsd-core.c (core_netbsd_vec): Likewise.
* osf-core.c (core_osf_vec): Likewise.
* pdp11.c (MY (vec)): Likewise.
* pef.c (pef_vec): Likewise.
(pef_xlib_vec): Likewise.
* plugin.c (plugin_vec): Likewise.
* ppcboot.c (powerpc_boot_vec): Likewise.
* ptrace-core.c (core_ptrace_vec): Likewise.
* sco5-core.c (core_sco5_vec): Likewise.
* som.c (hppa_som_vec): Likewise.
* srec.c (srec_vec): Likewise.
(symbolsrec_vec): Likewise.
* tekhex.c (tekhex_vec): Likewise.
* trad-core.c (core_trad_vec): Likewise.
* verilog.c (verilog_vec): Likewise.
* vms-alpha.c (alpha_vms_vec): Likewise.
* vms-lib.c (alpha_vms_lib_txt_vec): Likewise.
* wasm-module.c (wasm_vec): Likewise.
* xsym.c (sym_vec): Likewise.
* elf.c (ignore_section_sym): Return TRUE if BSF_SECTION_SYM_USED
isn't set.
(elf_map_symbols): Don't include ignored section symbols.
* elfcode.h (elf_slurp_symbol_table): Also set
BSF_SECTION_SYM_USED on STT_SECTION symbols.
* elflink.c (bfd_elf_final_link): Generated section symbols only
when emitting relocations or reqired.
* elfxx-x86.h (TARGET_KEEP_UNUSED_SECTION_SYMBOLS): New.
* syms.c (BSF_SECTION_SYM_USED): New.
* targets.c (TARGET_KEEP_UNUSED_SECTION_SYMBOLS): New.
(bfd_target): Add keep_unused_section_symbols.
(bfd_keep_unused_section_symbols): New.
* bfd-in2.h: Regenerated.
2021-01-07 Nick Clifton <nickc@redhat.com>
PR 25713

1
bfd/aix386-core.c
View File

@ -239,6 +239,7 @@ const bfd_target core_aix386_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64,
NO_GET, NO_GETS, NO_PUT,
NO_GET, NO_GETS, NO_PUT, /* data */

1
bfd/aout-target.h
View File

@ -660,6 +660,7 @@ const bfd_target MY (vec) =
AR_PAD_CHAR, /* AR_pad_char. */
15, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
#ifdef TARGET_IS_BIG_ENDIAN_P
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,

17
bfd/bfd-in2.h
View File

@ -6416,6 +6416,9 @@ typedef struct bfd_symbol
with this name and type in use. BSF_OBJECT must also be set. */
#define BSF_GNU_UNIQUE (1 << 23)
/* This section symbol should be included in the symbol table. */
#define BSF_SECTION_SYM_USED (1 << 24)
flagword flags;
/* A pointer to the section to which this symbol is
@ -7291,6 +7294,11 @@ bfd_boolean generic_core_file_matches_executable_p
(bfd_assert (__FILE__,__LINE__), NULL))
#endif
/* Defined to TRUE if unused section symbol should be kept. */
#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS TRUE
#endif
enum bfd_flavour
{
/* N.B. Update bfd_flavour_name if you change this. */
@ -7364,6 +7372,9 @@ typedef struct bfd_target
possible targets when more than one target matches. */
unsigned char match_priority;
/* TRUE if unused section symbols should be kept. */
bfd_boolean keep_unused_section_symbols;
/* Entries for byte swapping for data. These are different from the
other entry points, since they don't take a BFD as the first argument.
Certain other handlers could do the same. */
@ -7794,6 +7805,12 @@ bfd_asymbol_flavour (const asymbol *sy)
return sy->the_bfd->xvec->flavour;
}
static inline bfd_boolean
bfd_keep_unused_section_symbols (const bfd *abfd)
{
return abfd->xvec->keep_unused_section_symbols;
}
bfd_boolean bfd_set_default_target (const char *name);
const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);

1
bfd/binary.c
View File

@ -335,6 +335,7 @@ const bfd_target binary_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
255, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */

2
bfd/cisco-core.c
View File

@ -329,6 +329,7 @@ const bfd_target core_cisco_be_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
@ -384,6 +385,7 @@ const bfd_target core_cisco_le_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match_priority */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

1
bfd/coff-alpha.c
View File

@ -2427,6 +2427,7 @@ const bfd_target alpha_ecoff_le_vec =
' ', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

4
bfd/coff-i386.c
View File

@ -651,6 +651,7 @@ const bfd_target
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
@ -729,6 +730,7 @@ const bfd_target
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
@ -772,4 +774,4 @@ const bfd_target
&bigobj_swap_table
};
#endif
#endif

1
bfd/coff-ia64.c
View File

@ -170,6 +170,7 @@ const bfd_target
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,

3
bfd/coff-mips.c
View File

@ -1446,6 +1446,7 @@ const bfd_target mips_ecoff_le_vec =
' ', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -1504,6 +1505,7 @@ const bfd_target mips_ecoff_be_vec =
' ', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16,
@ -1562,6 +1564,7 @@ const bfd_target mips_ecoff_bele_vec =
' ', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

2
bfd/coff-rs6000.c
View File

@ -4201,6 +4201,7 @@ const bfd_target rs6000_xcoff_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
/* data */
bfd_getb64,
@ -4382,6 +4383,7 @@ const bfd_target powerpc_xcoff_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
/* data */
bfd_getb64,

2
bfd/coff-sh.c
View File

@ -3134,6 +3134,7 @@ const bfd_target sh_coff_small_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
@ -3191,6 +3192,7 @@ const bfd_target sh_coff_small_le_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

1
bfd/coff-tic30.c
View File

@ -192,6 +192,7 @@ const bfd_target tic30_coff_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */

26
bfd/coff-tic54x.c
View File

@ -415,6 +415,7 @@ const bfd_target tic54x_coff0_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -472,6 +473,11 @@ const bfd_target tic54x_coff0_beh_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
#ifdef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
TRUE, /* keep unused section symbols. */
#else
FALSE, /* keep unused section symbols. */
#endif
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -530,6 +536,11 @@ const bfd_target tic54x_coff1_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
#ifdef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
TRUE, /* keep unused section symbols. */
#else
FALSE, /* keep unused section symbols. */
#endif
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -588,6 +599,11 @@ const bfd_target tic54x_coff1_beh_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
#ifdef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
TRUE, /* keep unused section symbols. */
#else
FALSE, /* keep unused section symbols. */
#endif
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -646,6 +662,11 @@ const bfd_target tic54x_coff2_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
#ifdef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
TRUE, /* keep unused section symbols. */
#else
FALSE, /* keep unused section symbols. */
#endif
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
@ -704,6 +725,11 @@ const bfd_target tic54x_coff2_beh_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
#ifdef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
TRUE, /* keep unused section symbols. */
#else
FALSE, /* keep unused section symbols. */
#endif
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
tic54x_getl32, tic54x_getl_signed_32, tic54x_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

2
bfd/coff-x86_64.c
View File

@ -782,6 +782,7 @@ const bfd_target
'/', /* Ar_pad_char. */
15, /* Ar_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
@ -854,6 +855,7 @@ const bfd_target
'/', /* Ar_pad_char. */
15, /* Ar_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,

2
bfd/coff64-rs6000.c
View File

@ -2665,6 +2665,7 @@ const bfd_target rs6000_xcoff64_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
/* data */
bfd_getb64,
@ -2928,6 +2929,7 @@ const bfd_target rs6000_xcoff64_aix_vec =
'/', /* ar_pad_char */
15, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
/* data */
bfd_getb64,

3
bfd/coffcode.h
View File

@ -5820,6 +5820,7 @@ const bfd_target VAR = \
'/', /* AR_pad_char. */ \
15, /* AR_max_namelen. */ \
0, /* match priority. */ \
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
\
/* Data conversion functions. */ \
bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
@ -5881,6 +5882,7 @@ const bfd_target VAR = \
'/', /* AR_pad_char. */ \
15, /* AR_max_namelen. */ \
0, /* match priority. */ \
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
\
/* Data conversion functions. */ \
bfd_getb64, bfd_getb_signed_64, bfd_putb64, \
@ -5942,6 +5944,7 @@ const bfd_target VAR = \
'/', /* AR_pad_char. */ \
15, /* AR_max_namelen. */ \
0, /* match priority. */ \
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ \
\
/* Data conversion functions. */ \
bfd_getl64, bfd_getl_signed_64, bfd_putl64, \

15
bfd/elf.c
View File

@ -4061,6 +4061,10 @@ ignore_section_sym (bfd *abfd, asymbol *sym)
if ((sym->flags & BSF_SECTION_SYM) == 0)
return FALSE;
/* Ignore the section symbol if it isn't used. */
if ((sym->flags & BSF_SECTION_SYM_USED) == 0)
return TRUE;
if (sym->section == NULL)
return TRUE;
@ -4148,7 +4152,10 @@ elf_map_symbols (bfd *abfd, unsigned int *pnum_locals)
at least in that case. */
for (asect = abfd->sections; asect; asect = asect->next)
{
if (sect_syms[asect->index] == NULL)
asymbol *sym = asect->symbol;
/* Don't include ignored section symbols. */
if (!ignore_section_sym (abfd, sym)
&& sect_syms[asect->index] == NULL)
{
if (!sym_is_global (abfd, asect->symbol))
num_locals++;
@ -4170,6 +4177,7 @@ elf_map_symbols (bfd *abfd, unsigned int *pnum_locals)
if (sym_is_global (abfd, sym))
i = num_locals + num_globals2++;
/* Don't include ignored section symbols. */
else if (!ignore_section_sym (abfd, sym))
i = num_locals2++;
else
@ -4179,9 +4187,10 @@ elf_map_symbols (bfd *abfd, unsigned int *pnum_locals)
}
for (asect = abfd->sections; asect; asect = asect->next)
{
if (sect_syms[asect->index] == NULL)
asymbol *sym = asect->symbol;
if (!ignore_section_sym (abfd, sym)
&& sect_syms[asect->index] == NULL)
{
asymbol *sym = asect->symbol;
unsigned int i;
sect_syms[asect->index] = sym;

8
bfd/elfcode.h
View File

@ -1347,7 +1347,13 @@ elf_slurp_symbol_table (bfd *abfd, asymbol **symptrs, bfd_boolean dynamic)
switch (ELF_ST_TYPE (isym->st_info))
{
case STT_SECTION:
sym->symbol.flags |= BSF_SECTION_SYM | BSF_DEBUGGING;
/* Mark the input section symbol as used since it may be
used for relocation and section group.
NB: BSF_SECTION_SYM_USED is ignored by linker and may
be cleared by objcopy for non-relocatable inputs. */
sym->symbol.flags |= (BSF_SECTION_SYM
| BSF_DEBUGGING
| BSF_SECTION_SYM_USED);
break;
case STT_FILE:
sym->symbol.flags |= BSF_FILE | BSF_DEBUGGING;

59
bfd/elflink.c
View File

@ -12527,9 +12527,6 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
if (info->strip != strip_all || emit_relocs)
{
bfd_boolean name_local_sections;
const char *name;
file_ptr off = elf_next_file_pos (abfd);
_bfd_elf_assign_file_position_for_section (symtab_hdr, off, TRUE);
@ -12550,36 +12547,38 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
bfd_und_section_ptr, NULL) != 1)
goto error_return;
/* Output a symbol for each section. We output these even if we are
discarding local symbols, since they are used for relocs. These
symbols usually have no names. We store the index of each one in
the index field of the section, so that we can find it again when
outputting relocs. */
/* Output a symbol for each section if asked or they are used for
relocs. These symbols usually have no names. We store the
index of each one in the index field of the section, so that
we can find it again when outputting relocs. */
name_local_sections
= (bed->elf_backend_name_local_section_symbols
&& bed->elf_backend_name_local_section_symbols (abfd));
name = NULL;
elfsym.st_size = 0;
elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
elfsym.st_other = 0;
elfsym.st_value = 0;
elfsym.st_target_internal = 0;
for (i = 1; i < elf_numsections (abfd); i++)
if (bfd_keep_unused_section_symbols (abfd) || emit_relocs)
{
o = bfd_section_from_elf_index (abfd, i);
if (o != NULL)
bfd_boolean name_local_sections
= (bed->elf_backend_name_local_section_symbols
&& bed->elf_backend_name_local_section_symbols (abfd));
const char *name = NULL;
elfsym.st_size = 0;
elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
elfsym.st_other = 0;
elfsym.st_value = 0;
elfsym.st_target_internal = 0;
for (i = 1; i < elf_numsections (abfd); i++)
{
o->target_index = bfd_get_symcount (abfd);
elfsym.st_shndx = i;
if (!bfd_link_relocatable (info))
elfsym.st_value = o->vma;
if (name_local_sections)
name = o->name;
if (elf_link_output_symstrtab (&flinfo, name, &elfsym, o,
NULL) != 1)
goto error_return;
o = bfd_section_from_elf_index (abfd, i);
if (o != NULL)
{
o->target_index = bfd_get_symcount (abfd);
elfsym.st_shndx = i;
if (!bfd_link_relocatable (info))
elfsym.st_value = o->vma;
if (name_local_sections)
name = o->name;
if (elf_link_output_symstrtab (&flinfo, name, &elfsym, o,
NULL) != 1)
goto error_return;
}
}
}
}

6
bfd/elfxx-target.h
View File

@ -1007,6 +1007,9 @@ const bfd_target TARGET_BIG_SYM =
elf_match_priority,
/* TRUE if unused section symbols should be kept. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS,
/* Routines to byte-swap various sized integers from the data sections */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
@ -1108,6 +1111,9 @@ const bfd_target TARGET_LITTLE_SYM =
elf_match_priority,
/* TRUE if unused section symbols should be kept. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS,
/* Routines to byte-swap various sized integers from the data sections */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,

3
bfd/elfxx-x86.h
View File

@ -18,6 +18,9 @@
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* Don't generate unused section symbols. */
#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS FALSE
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"

1
bfd/hppabsd-core.c
View File

@ -230,6 +230,7 @@ const bfd_target core_hppabsd_vec =
0, /* symbol prefix */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/hpux-core.c
View File

@ -392,6 +392,7 @@ const bfd_target core_hpux_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/i386msdos.c
View File

@ -279,6 +279,7 @@ const bfd_target i386_msdos_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */

1
bfd/ihex.c
View File

@ -981,6 +981,7 @@ const bfd_target ihex_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

1
bfd/irix-core.c
View File

@ -293,6 +293,7 @@ const bfd_target core_irix_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match_priority */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/mach-o-target.c
View File

@ -136,6 +136,7 @@ const bfd_target TARGET_NAME =
' ', /* ar_pad_char. */
16, /* ar_max_namelen. */
TARGET_PRIORITY, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
#if TARGET_BIG_ENDIAN
bfd_getb64, bfd_getb_signed_64, bfd_putb64,

1
bfd/mmo.c
View File

@ -3344,6 +3344,7 @@ const bfd_target mmix_mmo_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */

1
bfd/netbsd-core.c
View File

@ -276,6 +276,7 @@ const bfd_target core_netbsd_vec =
' ', /* ar_pad_char. */
16, /* ar_max_namelen. */
0, /* Match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data. */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data. */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data. */

1
bfd/osf-core.c
View File

@ -187,6 +187,7 @@ const bfd_target core_osf_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/pdp11.c
View File

@ -4689,6 +4689,7 @@ const bfd_target MY (vec) =
AR_PAD_CHAR, /* AR_pad_char. */
15, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getp32, bfd_getp_signed_32, bfd_putp32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */

2
bfd/pef.c
View File

@ -1015,6 +1015,7 @@ const bfd_target pef_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
@ -1159,6 +1160,7 @@ const bfd_target pef_xlib_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

1
bfd/plugin.c
View File

@ -719,6 +719,7 @@ const bfd_target plugin_vec =
'/', /* ar_pad_char. */
15, /* ar_max_namelen. */
255, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,

1
bfd/ppcboot.c
View File

@ -495,6 +495,7 @@ const bfd_target powerpc_boot_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */

1
bfd/ptrace-core.c
View File

@ -177,6 +177,7 @@ const bfd_target core_ptrace_vec =
0, /* symbol prefix */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/sco5-core.c
View File

@ -358,6 +358,7 @@ const bfd_target core_sco5_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/som.c
View File

@ -6859,6 +6859,7 @@ const bfd_target hppa_som_vec =
'/', /* AR_pad_char. */
14, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

2
bfd/srec.c
View File

@ -1295,6 +1295,7 @@ const bfd_target srec_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
@ -1351,6 +1352,7 @@ const bfd_target symbolsrec_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

3
bfd/syms.c
View File

@ -307,6 +307,9 @@ CODE_FRAGMENT
. with this name and type in use. BSF_OBJECT must also be set. *}
.#define BSF_GNU_UNIQUE (1 << 23)
.
. {* This section symbol should be included in the symbol table. *}
.#define BSF_SECTION_SYM_USED (1 << 24)
.
. flagword flags;
.
. {* A pointer to the section to which this symbol is

14
bfd/targets.c
View File

@ -132,6 +132,11 @@ DESCRIPTION
. (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
. (bfd_assert (__FILE__,__LINE__), NULL))
.#endif
.
.{* Defined to TRUE if unused section symbol should be kept. *}
.#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
.#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS TRUE
.#endif
.
This is the structure which defines the type of BFD this is. The
<<xvec>> member of the struct <<bfd>> itself points here. Each
@ -215,6 +220,9 @@ DESCRIPTION
. possible targets when more than one target matches. *}
. unsigned char match_priority;
.
. {* TRUE if unused section symbols should be kept. *}
. bfd_boolean keep_unused_section_symbols;
.
. {* Entries for byte swapping for data. These are different from the
. other entry points, since they don't take a BFD as the first argument.
. Certain other handlers could do the same. *}
@ -655,6 +663,12 @@ to find an alternative output format that is suitable.
. return sy->the_bfd->xvec->flavour;
.}
.
.static inline bfd_boolean
.bfd_keep_unused_section_symbols (const bfd *abfd)
.{
. return abfd->xvec->keep_unused_section_symbols;
.}
.
*/
/* All known xvecs (even those that don't compile on all systems).

1
bfd/tekhex.c
View File

@ -1008,6 +1008,7 @@ const bfd_target tekhex_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

1
bfd/trad-core.c
View File

@ -279,6 +279,7 @@ const bfd_target core_trad_vec =
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */

1
bfd/verilog.c
View File

@ -405,6 +405,7 @@ const bfd_target verilog_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

1
bfd/vms-alpha.c
View File

@ -9792,6 +9792,7 @@ const bfd_target alpha_vms_vec =
' ', /* ar_pad_char. */
15, /* ar_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,

1
bfd/vms-lib.c
View File

@ -2403,6 +2403,7 @@ const bfd_target alpha_vms_lib_txt_vec =
' ', /* ar_pad_char. */
15, /* ar_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16,

1
bfd/wasm-module.c
View File

@ -794,6 +794,7 @@ const bfd_target wasm_vec =
' ', /* AR_pad_char. */
255, /* AR_max_namelen. */
0, /* Match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
/* Routines to byte-swap various sized integers from the data sections. */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,

1
bfd/xsym.c
View File

@ -2298,6 +2298,7 @@ const bfd_target sym_vec =
' ', /* AR_pad_char. */
16, /* AR_max_namelen. */
0, /* match priority. */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */

16
binutils/ChangeLog
View File

@ -1,3 +1,19 @@
2021-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR 27109
* objcopy.c (copy_object): Handle section symbols for
non-relocatable inputs.
* testsuite/binutils-all/readelf.exp (readelf_test): Check
is_elf_unused_section_symbols.
* testsuite/binutils-all/readelf.s-64: Updated.
* testsuite/binutils-all/readelf.ss: Likewise.
* testsuite/binutils-all/readelf.ss-64: Likewise.
* testsuite/binutils-all/readelf.s-64-unused: New file.
* testsuite/binutils-all/readelf.ss-64-unused: Likewise.
* testsuite/binutils-all/readelf.ss-unused: Likewise.
* testsuite/lib/binutils-common.exp
(is_elf_unused_section_symbols): New proc.
2021-01-06 Reuben Thomas <rrt@sc3d.org>
* binutils/readelf.c: Correct grammar in comment.

24
binutils/objcopy.c
View File

@ -3204,6 +3204,30 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
if (convert_debugging)
dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE);
if ((obfd->flags & (EXEC_P | DYNAMIC)) != 0
&& (obfd->flags & HAS_RELOC) == 0)
{
if (bfd_keep_unused_section_symbols (obfd))
{
/* Non-relocatable inputs may not have the unused section
symbols. Mark all section symbols as used to generate
section symbols. */
asection *asect;
for (asect = obfd->sections; asect != NULL; asect = asect->next)
if (asect->symbol)
asect->symbol->flags |= BSF_SECTION_SYM_USED;
}
else
{
/* Non-relocatable inputs may have the unused section symbols.
Mark all section symbols as unused to excluded them. */
long s;
for (s = 0; s < symcount; s++)
if ((isympp[s]->flags & BSF_SECTION_SYM_USED))
isympp[s]->flags &= ~BSF_SECTION_SYM_USED;
}
}
if (strip_symbols == STRIP_DEBUG
|| strip_symbols == STRIP_ALL
|| strip_symbols == STRIP_UNNEEDED

6
binutils/testsuite/binutils-all/readelf.exp
View File

@ -100,7 +100,11 @@ proc readelf_test { options binary_file regexp_file xfails } {
return
}
set target_machine ""
if { [is_elf_unused_section_symbols ] } {
set target_machine unused
} else {
set target_machine ""
}
if [istarget "mips*-*-*"] then {
if [is_bad_symtab] then {
set target_machine mips

2
binutils/testsuite/binutils-all/readelf.s-64
View File

@ -18,7 +18,7 @@ Section Headers:
+\[ .\] .symtab +SYMTAB +0000000000000000 +0+.*
# aarch64-elf targets have one more data symbol.
# x86 targets may have .note.gnu.property.
+0+.* +0000000000000018 +(6|7) +(6|7) +8
+0+.* +0000000000000018 +(6|7) +(3|4) +8
+\[ .\] .strtab +STRTAB +0000000000000000 +0+.*
+0+.* +0000000000000000 .* +0 +0 +1
+\[ .\] .shstrtab +STRTAB +0000000000000000 +[0-9a-f]+

27
binutils/testsuite/binutils-all/readelf.s-64-unused Normal file
View File

@ -0,0 +1,27 @@
There are .* section headers, starting at offset .*:
Section Headers:
+\[Nr\] Name +Type +Address +Offset
+Size +EntSize +Flags +Link +Info +Align
+\[ 0\] +NULL +0000000000000000 +00000000
+0000000000000000 +0000000000000000 +0 +0 +0
+\[ 1\] .text +PROGBITS +0000000000000000 +00000040
+00000000000000.. +0000000000000000 +AX +0 +0 +.*
+\[ 2\] .rel.+text +REL. +0+ +0+.*
+000000000000001. +000000000000001. +I +. +1 +8
+\[ 3\] .data +PROGBITS +0000000000000000 +000000(48|50)
+000000000000000[48] +0000000000000000 +WA +0 +0 +.*
+\[ 4\] .bss +NOBITS +0000000000000000 +000000(4c|50|54|58)
+0000000000000000 +0000000000000000 +WA +0 +0 +.*
# x86 targets may put .note.gnu.property here.
#...
+\[ .\] .symtab +SYMTAB +0000000000000000 +0+.*
# aarch64-elf targets have one more data symbol.
# x86 targets may have .note.gnu.property.
+0+.* +0000000000000018 +(6|7) +(6|7) +8
+\[ .\] .strtab +STRTAB +0000000000000000 +0+.*
+0+.* +0000000000000000 .* +0 +0 +1
+\[ .\] .shstrtab +STRTAB +0000000000000000 +[0-9a-f]+
+00000000000000.. +0000000000000000 .* +0 +0 +.*
Key to Flags:
#...

5
binutils/testsuite/binutils-all/readelf.ss
View File

@ -2,10 +2,7 @@
Symbol table '.symtab' contains .* entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 00000000 +0 +SECTION +LOCAL +DEFAULT +1
+2: 00000000 +0 +SECTION +LOCAL +DEFAULT +[34]
+3: 00000000 +0 +SECTION +LOCAL +DEFAULT +[45]
+4: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
+1: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
# ARM targets add the $d mapping symbol here...
# NDS32 targets add the $d2 mapping symbol here...
#...

5
binutils/testsuite/binutils-all/readelf.ss-64
View File

@ -2,10 +2,7 @@
Symbol table '.symtab' contains .* entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +1
+2: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +3
+3: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +4
+4: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
+1: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
# aarch64-elf targets add the $d mapping symbol here...
#...
+.: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +3 static_data_symbol

18
binutils/testsuite/binutils-all/readelf.ss-64-unused Normal file
View File

@ -0,0 +1,18 @@
Symbol table '.symtab' contains .* entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +1
+2: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +3
+3: 0000000000000000 +0 +SECTION +LOCAL +DEFAULT +4
+4: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
# aarch64-elf targets add the $d mapping symbol here...
#...
+.: 0000000000000000 +0 +NOTYPE +LOCAL +DEFAULT +3 static_data_symbol
# ... or here ...
#...
.* +.: 0000000000000000 +0 +NOTYPE +GLOBAL +DEFAULT +1 text_symbol
+.: 0000000000000000 +0 +NOTYPE +GLOBAL +DEFAULT +UND external_symbol
+.: 0000000000000000 +0 +NOTYPE +GLOBAL +DEFAULT +3 data_symbol
+[0-9]+: 0000000000000004 +4 +(COMMON|OBJECT) +GLOBAL +DEFAULT +COM common_symbol
#pass

20
binutils/testsuite/binutils-all/readelf.ss-unused Normal file
View File

@ -0,0 +1,20 @@
Symbol table '.symtab' contains .* entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 00000000 +0 +SECTION +LOCAL +DEFAULT +1
+2: 00000000 +0 +SECTION +LOCAL +DEFAULT +[34]
+3: 00000000 +0 +SECTION +LOCAL +DEFAULT +[45]
+4: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +1 static_text_symbol
# ARM targets add the $d mapping symbol here...
# NDS32 targets add the $d2 mapping symbol here...
#...
+.: 00000000 +0 +NOTYPE +LOCAL +DEFAULT +[34] static_data_symbol
# v850 targets include extra SECTION symbols here for the .call_table_data
# and .call_table_text sections.
#...
+[0-9]+: 00000000 +0 +NOTYPE +GLOBAL +DEFAULT +1 text_symbol
+[0-9]+: 00000000 +0 +NOTYPE +GLOBAL +DEFAULT +UND external_symbol
+[0-9]+: 00000000 +0 +NOTYPE +GLOBAL +DEFAULT +[34] data_symbol
+[0-9]+: 00000004 +4 +(COMMON|OBJECT) +GLOBAL +DEFAULT +(COM|ANSI_COM) common_symbol
#...

31
binutils/testsuite/lib/binutils-common.exp
View File

@ -248,6 +248,37 @@ proc is_generic { } {
return 0
}
# True if the object format is ELF with unused section symbols.
proc is_elf_unused_section_symbols {} {
global AS ASFLAGS READELF
if {![info exists elf_unused_section_symbols_saved]} {
set elf_unused_section_symbols_saved 1
if { [is_elf_format] } {
set base "empty[pid]"
set src "$base.s"
set obj "$base.obj"
set f [open $src "w"]
close $f
set cmd "$AS $ASFLAGS -o $obj $src"
send_log "$cmd\n"
set cmdret [remote_exec host $cmd]
set cmdret [lindex $cmdret 0]
if { $cmdret == 0 } {
set cmd "$READELF -sW $obj"
send_log "$cmd\n"
set got [remote_exec host $cmd]
if { ![string match "*SECTION*" $got] } {
set elf_unused_section_symbols_saved 0
}
}
file delete $obj
file delete $src
}
}
return $elf_unused_section_symbols_saved
}
# True if the ELF target supports STB_GNU_UNIQUE.
#
# This require ELFOSABI_GNU, and `bfd_elf_final_link'.

33
gas/ChangeLog
View File

@ -1,3 +1,36 @@
2021-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR 27109
* read.c (s_reloc): Call symbol_mark_used_in_reloc on the
section symbol.
* subsegs.c (subseg_set_rest): Set BSF_SECTION_SYM_USED if needed.
* write.c (adjust_reloc_syms): Call symbol_mark_used_in_reloc
on the section symbol.
(set_symtab): Don't generate unused section symbols.
(maybe_generate_build_notes): Call symbol_mark_used_in_reloc
on the section symbol.
* config/obj-elf.c (elf_adjust_symtab): Call
symbol_mark_used_in_reloc on the group signature symbol.
* testsuite/gas/cfi/cfi-label.d: Remove unused section symbols
from expected output.
* testsuite/gas/elf/elf.exp (run_elf_list_test): Check
is_elf_unused_section_symbols.
* testsuite/gas/elf/section2.e: Updated.
* testsuite/gas/elf/section2.e-unused: New file.
* testsuite/gas/elf/symver.d: Remove unused section symbols.
* testsuite/gas/i386/ilp32/elf/symver.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-size-1.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-size-3.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-size-5.d: Likewise.
* testsuite/gas/i386/ilp32/x86-64-unwind.d: Likewise.
* testsuite/gas/i386/size-1.d: Likewise.
* testsuite/gas/i386/size-3.d: Likewise.
* testsuite/gas/i386/svr4.d: Likewise.
* testsuite/gas/i386/x86-64-size-1.d: Likewise.
* testsuite/gas/i386/x86-64-size-3.d: Likewise.
* testsuite/gas/i386/x86-64-size-5.d: Likewise.
* testsuite/gas/i386/x86-64-unwind.d: Likewise.
2021-01-07 Philipp Tomsich <prt@gnu.org>
* config/tc-riscv.c (riscv_multi_subset_supports): Added

3
gas/config/obj-elf.c
View File

@ -2841,6 +2841,9 @@ elf_adjust_symtab (void)
symbol_table_insert (sy);
}
elf_group_id (s) = symbol_get_bfdsym (sy);
/* Mark the group signature symbol as used so that it will be
included in the symbol table. */
symbol_mark_used_in_reloc (sy);
}
}

3
gas/read.c
View File

@ -4207,6 +4207,9 @@ s_reloc (int ignore ATTRIBUTE_UNUSED)
goto err_out;
case O_constant:
exp.X_add_symbol = section_symbol (now_seg);
/* Mark the section symbol used in relocation so that it will be
included in the symbol table. */
symbol_mark_used_in_reloc (exp.X_add_symbol);
exp.X_op = O_symbol;
/* Fallthru */
case O_symbol:

4
gas/subsegs.c
View File

@ -89,6 +89,10 @@ subseg_set_rest (segT seg, subsegT subseg)
seginfo = seg_info (seg);
/* Should the section symbol be kept? */
if (bfd_keep_unused_section_symbols (stdoutput))
seg->symbol->flags |= BSF_SECTION_SYM_USED;
/* Attempt to find or make a frchain for that subsection.
We keep the list sorted by subsection number. */
for (frcP = *(lastPP = &seginfo->frchainP);

4
gas/testsuite/gas/cfi/cfi-label.d
View File

@ -6,11 +6,9 @@
SYMBOL TABLE:
0*00 l d \.text 0*00 \.text
0*00 l d \.data 0*00 \.data
0*00 l d \.bss 0*00 \.bss
#...
0*00 l F \.text 0*04 cfilabel
0*2f l \.eh_frame 0*00 cfi2
0*00 l d \.eh_frame 0*00 \.eh_frame
0*2b g \.eh_frame 0*00 cfi1

6
gas/testsuite/gas/elf/elf.exp
View File

@ -54,7 +54,11 @@ proc run_elf_list_test { name suffix opts readelf_opts readelf_pipe } {
# We're testing bits in obj-elf -- don't run on anything else.
if { [is_elf_format] } then {
set target_machine ""
if { [is_elf_unused_section_symbols ] } {
set target_machine -unused
} else {
set target_machine ""
}
set dump_opts ""
if {[istarget "arc*-*-*"]} {
set target_machine -arc

7
gas/testsuite/gas/elf/section2.e
View File

@ -1,8 +1 @@
Symbol table '.symtab' contains 5 entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 0+0 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 0+0 +0 +SECTION +LOCAL +DEFAULT +1
+2: 0+0 +0 +SECTION +LOCAL +DEFAULT +2
+3: 0+0 +0 +SECTION +LOCAL +DEFAULT +3
+4: 0+0 +0 +SECTION +LOCAL +DEFAULT +4

8
gas/testsuite/gas/elf/section2.e-unused Normal file
View File

@ -0,0 +1,8 @@
Symbol table '.symtab' contains 5 entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+0: 0+0 +0 +NOTYPE +LOCAL +DEFAULT +UND
+1: 0+0 +0 +SECTION +LOCAL +DEFAULT +1
+2: 0+0 +0 +SECTION +LOCAL +DEFAULT +2
+3: 0+0 +0 +SECTION +LOCAL +DEFAULT +3
+4: 0+0 +0 +SECTION +LOCAL +DEFAULT +4

4
gas/testsuite/gas/elf/symver.d
View File

@ -8,10 +8,6 @@
.*: file format .*
SYMBOL TABLE:
0+000 l.*d.*\.text.*0+000.*
0+000 l.*d.*\.data.*0+000.*
0+000 l.*d.*\.bss.*0+000.*
#...
0+000 l.*O.*\.data.*0+004 x
#...

4
gas/testsuite/gas/i386/ilp32/elf/symver.d
View File

@ -9,10 +9,6 @@
.*: file format .*
SYMBOL TABLE:
0+000 l.*d.*\.text.*0+000.*
0+000 l.*d.*\.data.*0+000.*
0+000 l.*d.*\.bss.*0+000.*
#...
0+000 l.*O.*\.data.*0+004 x
#...

24
gas/testsuite/gas/i386/ilp32/x86-64-size-1.d
View File

@ -6,19 +6,19 @@
Relocation section '.rela.text' at offset .* contains 9 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+1 00000420 R_X86_64_SIZE32 00000000 xxx \+ 0
0+6 00000420 R_X86_64_SIZE32 00000000 xxx - 8
0+b 00000420 R_X86_64_SIZE32 00000000 xxx \+ 8
0+10 00000520 R_X86_64_SIZE32 00000000 yyy \+ 0
0+15 00000520 R_X86_64_SIZE32 00000000 yyy - 10
0+1a 00000520 R_X86_64_SIZE32 00000000 yyy \+ 10
0+1f 00000620 R_X86_64_SIZE32 00000020 zzz \+ 0
0+24 00000620 R_X86_64_SIZE32 00000020 zzz - 20
0+29 00000620 R_X86_64_SIZE32 00000020 zzz \+ 20
0+1 00000120 R_X86_64_SIZE32 00000000 xxx \+ 0
0+6 00000120 R_X86_64_SIZE32 00000000 xxx - 8
0+b 00000120 R_X86_64_SIZE32 00000000 xxx \+ 8
0+10 00000220 R_X86_64_SIZE32 00000000 yyy \+ 0
0+15 00000220 R_X86_64_SIZE32 00000000 yyy - 10
0+1a 00000220 R_X86_64_SIZE32 00000000 yyy \+ 10
0+1f 00000320 R_X86_64_SIZE32 00000020 zzz \+ 0
0+24 00000320 R_X86_64_SIZE32 00000020 zzz - 20
0+29 00000320 R_X86_64_SIZE32 00000020 zzz \+ 20
Relocation section '.rela.data' at offset .* contains 3 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+50 00000420 R_X86_64_SIZE32 00000000 xxx - 1
0+54 00000520 R_X86_64_SIZE32 00000000 yyy \+ 2
0+58 00000620 R_X86_64_SIZE32 00000020 zzz \+ 0
0+50 00000120 R_X86_64_SIZE32 00000000 xxx - 1
0+54 00000220 R_X86_64_SIZE32 00000000 yyy \+ 2
0+58 00000320 R_X86_64_SIZE32 00000020 zzz \+ 0
#pass

16
gas/testsuite/gas/i386/ilp32/x86-64-size-3.d
View File

@ -6,15 +6,15 @@
Relocation section '.rela.text' at offset .* contains 6 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+1 00000620 R_X86_64_SIZE32 00000000 xxx \+ 0
0+6 00000620 R_X86_64_SIZE32 00000000 xxx - 8
0+b 00000620 R_X86_64_SIZE32 00000000 xxx \+ 8
0+10 00000720 R_X86_64_SIZE32 00000000 yyy \+ 0
0+15 00000720 R_X86_64_SIZE32 00000000 yyy - 10
0+1a 00000720 R_X86_64_SIZE32 00000000 yyy \+ 10
0+1 00000120 R_X86_64_SIZE32 00000000 xxx \+ 0
0+6 00000120 R_X86_64_SIZE32 00000000 xxx - 8
0+b 00000120 R_X86_64_SIZE32 00000000 xxx \+ 8
0+10 00000220 R_X86_64_SIZE32 00000000 yyy \+ 0
0+15 00000220 R_X86_64_SIZE32 00000000 yyy - 10
0+1a 00000220 R_X86_64_SIZE32 00000000 yyy \+ 10
Relocation section '.rela.tdata' at offset .* contains 2 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+50 00000620 R_X86_64_SIZE32 00000000 xxx - 1
0+54 00000720 R_X86_64_SIZE32 00000000 yyy \+ 2
0+50 00000120 R_X86_64_SIZE32 00000000 xxx - 1
0+54 00000220 R_X86_64_SIZE32 00000000 yyy \+ 2
#pass

12
gas/testsuite/gas/i386/ilp32/x86-64-size-5.d
View File

@ -6,13 +6,13 @@
Relocation section '.rela.text' at offset .* contains 3 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+2 00000421 R_X86_64_SIZE64 00000000 xxx \+ 0
0+c 00000421 R_X86_64_SIZE64 00000000 xxx - 8
0+16 00000421 R_X86_64_SIZE64 00000000 xxx \+ 8
0+2 00000121 R_X86_64_SIZE64 00000000 xxx \+ 0
0+c 00000121 R_X86_64_SIZE64 00000000 xxx - 8
0+16 00000121 R_X86_64_SIZE64 00000000 xxx \+ 8
Relocation section '.rela.data' at offset .* contains 3 entries:
Offset Info Type Sym.Value Sym. Name \+ Addend
0+50 00000421 R_X86_64_SIZE64 00000000 xxx - 1
0+58 00000621 R_X86_64_SIZE64 00000000 yyy \+ c8
0+60 00000521 R_X86_64_SIZE64 00000020 zzz \+ 0
0+50 00000121 R_X86_64_SIZE64 00000000 xxx - 1
0+58 00000321 R_X86_64_SIZE64 00000000 yyy \+ c8
0+60 00000221 R_X86_64_SIZE64 00000020 zzz \+ 0
#pass

6
gas/testsuite/gas/i386/ilp32/x86-64-unwind.d
View File

@ -3,7 +3,7 @@
#readelf: -S
#name: x86-64 (ILP32) unwind
There are 8 section headers, starting at offset 0x[0-9a-f]+:
There are 6 section headers, starting at offset 0x[0-9a-f]+:
Section Headers:
\[Nr\] Name Type Addr Off Size ES Flg Lk Inf Al
@ -12,8 +12,6 @@ Section Headers:
\[ 2\] .data PROGBITS 00000000 000034 000000 00 WA 0 0 1
\[ 3\] .bss NOBITS 00000000 000034 000000 00 WA 0 0 1
\[ 4\] .eh_frame X86_64_UNWIND 00000000 000034 000008 00 A 0 0 1
\[ 5\] .symtab SYMTAB 00000000 [0-9a-f]+ 000050 10 6 5 4
\[ 6\] .strtab STRTAB 00000000 [0-9a-f]+ 000001 00 . 0 0 1
\[ 7\] .shstrtab STRTAB 00000000 [0-9a-f]+ 000036 00 . 0 0 1
\[ 5\] .shstrtab STRTAB 00000000 [0-9a-f]+ 000026 00 . 0 0 1
Key to Flags:
#pass

24
gas/testsuite/gas/i386/size-1.d
View File

@ -5,19 +5,19 @@
Relocation section '.rel.text' at offset .* contains 9 entries:
Offset Info Type Sym.Value Sym. Name
0+1 00000426 R_386_SIZE32 00000000 xxx
0+6 00000426 R_386_SIZE32 00000000 xxx
0+b 00000426 R_386_SIZE32 00000000 xxx
0+10 00000526 R_386_SIZE32 00000000 yyy
0+15 00000526 R_386_SIZE32 00000000 yyy
0+1a 00000526 R_386_SIZE32 00000000 yyy
0+1f 00000626 R_386_SIZE32 00000020 zzz
0+24 00000626 R_386_SIZE32 00000020 zzz
0+29 00000626 R_386_SIZE32 00000020 zzz
0+1 00000126 R_386_SIZE32 00000000 xxx
0+6 00000126 R_386_SIZE32 00000000 xxx
0+b 00000126 R_386_SIZE32 00000000 xxx
0+10 00000226 R_386_SIZE32 00000000 yyy
0+15 00000226 R_386_SIZE32 00000000 yyy
0+1a 00000226 R_386_SIZE32 00000000 yyy
0+1f 00000326 R_386_SIZE32 00000020 zzz
0+24 00000326 R_386_SIZE32 00000020 zzz
0+29 00000326 R_386_SIZE32 00000020 zzz
Relocation section '.rel.data' at offset .* contains 3 entries:
Offset Info Type Sym.Value Sym. Name
0+50 00000426 R_386_SIZE32 00000000 xxx
0+54 00000526 R_386_SIZE32 00000000 yyy
0+58 00000626 R_386_SIZE32 00000020 zzz
0+50 00000126 R_386_SIZE32 00000000 xxx
0+54 00000226 R_386_SIZE32 00000000 yyy
0+58 00000326 R_386_SIZE32 00000020 zzz
#pass

16
gas/testsuite/gas/i386/size-3.d
View File

@ -5,15 +5,15 @@
Relocation section '.rel.text' at offset .* contains 6 entries:
Offset Info Type Sym.Value Sym. Name
0+1 00000626 R_386_SIZE32 00000000 xxx
0+6 00000626 R_386_SIZE32 00000000 xxx
0+b 00000626 R_386_SIZE32 00000000 xxx
0+10 00000726 R_386_SIZE32 00000000 yyy
0+15 00000726 R_386_SIZE32 00000000 yyy
0+1a 00000726 R_386_SIZE32 00000000 yyy
0+1 00000126 R_386_SIZE32 00000000 xxx
0+6 00000126 R_386_SIZE32 00000000 xxx
0+b 00000126 R_386_SIZE32 00000000 xxx
0+10 00000226 R_386_SIZE32 00000000 yyy
0+15 00000226 R_386_SIZE32 00000000 yyy
0+1a 00000226 R_386_SIZE32 00000000 yyy
Relocation section '.rel.tdata' at offset .* contains 2 entries:
Offset Info Type Sym.Value Sym. Name
0+50 00000626 R_386_SIZE32 00000000 xxx
0+54 00000726 R_386_SIZE32 00000000 yyy
0+50 00000126 R_386_SIZE32 00000000 xxx
0+54 00000226 R_386_SIZE32 00000000 yyy
#pass

3
gas/testsuite/gas/i386/svr4.d
View File

@ -4,9 +4,6 @@
.*: +file format .*
SYMBOL TABLE:
0+00 .* \.text[ ]+0+ \.text
0+00 .* \.data[ ]+0+ \.data
0+00 .* \.bss[ ]+0+ \.bss
0+00 .* \.text[ ]+0+ svr4
0+04 .* \*ABS\*[ ]+0+ a
0+03 .* \*ABS\*[ ]+0+ b

24
gas/testsuite/gas/i386/x86-64-size-1.d
View File

@ -6,19 +6,19 @@
Relocation section '.rela.text' at offset .* contains 9 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+1 000400000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 0
0+6 000400000020 R_X86_64_SIZE32 0000000000000000 xxx - 8
0+b 000400000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 8
0+10 000500000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 0
0+15 000500000020 R_X86_64_SIZE32 0000000000000000 yyy - 10
0+1a 000500000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 10
0+1f 000600000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 0
0+24 000600000020 R_X86_64_SIZE32 0000000000000020 zzz - 20
0+29 000600000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 20
0+1 000100000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 0
0+6 000100000020 R_X86_64_SIZE32 0000000000000000 xxx - 8
0+b 000100000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 8
0+10 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 0
0+15 000200000020 R_X86_64_SIZE32 0000000000000000 yyy - 10
0+1a 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 10
0+1f 000300000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 0
0+24 000300000020 R_X86_64_SIZE32 0000000000000020 zzz - 20
0+29 000300000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 20
Relocation section '.rela.data' at offset .* contains 3 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+50 000400000020 R_X86_64_SIZE32 0000000000000000 xxx - 1
0+54 000500000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 2
0+58 000600000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 0
0+50 000100000020 R_X86_64_SIZE32 0000000000000000 xxx - 1
0+54 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 2
0+58 000300000020 R_X86_64_SIZE32 0000000000000020 zzz \+ 0
#pass

16
gas/testsuite/gas/i386/x86-64-size-3.d
View File

@ -6,15 +6,15 @@
Relocation section '.rela.text' at offset .* contains 6 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+1 000600000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 0
0+6 000600000020 R_X86_64_SIZE32 0000000000000000 xxx - 8
0+b 000600000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 8
0+10 000700000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 0
0+15 000700000020 R_X86_64_SIZE32 0000000000000000 yyy - 10
0+1a 000700000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 10
0+1 000100000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 0
0+6 000100000020 R_X86_64_SIZE32 0000000000000000 xxx - 8
0+b 000100000020 R_X86_64_SIZE32 0000000000000000 xxx \+ 8
0+10 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 0
0+15 000200000020 R_X86_64_SIZE32 0000000000000000 yyy - 10
0+1a 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 10
Relocation section '.rela.tdata' at offset .* contains 2 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+50 000600000020 R_X86_64_SIZE32 0000000000000000 xxx - 1
0+54 000700000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 2
0+50 000100000020 R_X86_64_SIZE32 0000000000000000 xxx - 1
0+54 000200000020 R_X86_64_SIZE32 0000000000000000 yyy \+ 2
#pass

12
gas/testsuite/gas/i386/x86-64-size-5.d
View File

@ -5,13 +5,13 @@
Relocation section '.rela.text' at offset .* contains 3 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+2 000400000021 R_X86_64_SIZE64 0000000000000000 xxx \+ 0
0+c 000400000021 R_X86_64_SIZE64 0000000000000000 xxx - 8
0+16 000400000021 R_X86_64_SIZE64 0000000000000000 xxx \+ 8
0+2 000100000021 R_X86_64_SIZE64 0000000000000000 xxx \+ 0
0+c 000100000021 R_X86_64_SIZE64 0000000000000000 xxx - 8
0+16 000100000021 R_X86_64_SIZE64 0000000000000000 xxx \+ 8
Relocation section '.rela.data' at offset .* contains 3 entries:
Offset Info Type Sym. Value Sym. Name \+ Addend
0+50 000400000021 R_X86_64_SIZE64 0000000000000000 xxx - 1
0+58 000600000021 R_X86_64_SIZE64 0000000000000000 yyy \+ c8
0+60 000500000021 R_X86_64_SIZE64 0000000000000020 zzz \+ 0
0+50 000100000021 R_X86_64_SIZE64 0000000000000000 xxx - 1
0+58 000300000021 R_X86_64_SIZE64 0000000000000000 yyy \+ c8
0+60 000200000021 R_X86_64_SIZE64 0000000000000020 zzz \+ 0
#pass

10
gas/testsuite/gas/i386/x86-64-unwind.d
View File

@ -2,7 +2,7 @@
#readelf: -S
#name: x86-64 unwind
There are 8 section headers, starting at offset 0x[0-9a-f]+:
There are 6 section headers, starting at offset 0x[0-9a-f]+:
Section Headers:
\[Nr\] Name Type Address Offset
@ -17,11 +17,7 @@ Section Headers:
0000000000000000 0000000000000000 WA 0 0 1
\[ 4\] \.eh_frame X86_64_UNWIND 0000000000000000 00000040
0000000000000008 0000000000000000 A 0 0 1
\[ 5\] \.symtab SYMTAB 0000000000000000 [0-9a-f]+
0000000000000078 0000000000000018 6 5 8
\[ 6\] \.strtab STRTAB 0000000000000000 [0-9a-f]+
0000000000000001 0000000000000000 . 0 0 1
\[ 7\] \.shstrtab STRTAB 0000000000000000 [0-9a-f]+
0000000000000036 0000000000000000 . 0 0 1
\[ 5\] \.shstrtab STRTAB 0000000000000000 [0-9a-f]+
0000000000000026 0000000000000000 . 0 0 1
Key to Flags:
#...

43
gas/write.c
View File

@ -848,7 +848,12 @@ adjust_reloc_syms (bfd *abfd ATTRIBUTE_UNUSED,
/* Since we're reducing to section symbols, don't attempt to reduce
anything that's already using one. */
if (symbol_section_p (sym))
continue;
{
/* Mark the section symbol used in relocation so that it will
be included in the symbol table. */
symbol_mark_used_in_reloc (sym);
continue;
}
symsec = S_GET_SEGMENT (sym);
if (symsec == NULL)
@ -1747,10 +1752,13 @@ set_symtab (void)
/* Count symbols. We can't rely on a count made by the loop in
write_object_file, because *_frob_file may add a new symbol or
two. */
two. Generate unused section symbols only if needed. */
nsyms = 0;
for (symp = symbol_rootP; symp; symp = symbol_next (symp))
nsyms++;
if (bfd_keep_unused_section_symbols (stdoutput)
|| !symbol_section_p (symp)
|| symbol_used_in_reloc_p (symp))
nsyms++;
if (nsyms)
{
@ -1759,15 +1767,22 @@ set_symtab (void)
asympp = (asymbol **) bfd_alloc (stdoutput, amt);
symp = symbol_rootP;
for (i = 0; i < nsyms; i++, symp = symbol_next (symp))
{
asympp[i] = symbol_get_bfdsym (symp);
if (asympp[i]->flags != BSF_SECTION_SYM
|| !(bfd_is_const_section (asympp[i]->section)
&& asympp[i]->section->symbol == asympp[i]))
asympp[i]->flags |= BSF_KEEP;
symbol_mark_written (symp);
}
for (i = 0; i < nsyms; symp = symbol_next (symp))
if (bfd_keep_unused_section_symbols (stdoutput)
|| !symbol_section_p (symp)
|| symbol_used_in_reloc_p (symp))
{
asympp[i] = symbol_get_bfdsym (symp);
if (asympp[i]->flags != BSF_SECTION_SYM
|| !(bfd_is_const_section (asympp[i]->section)
&& asympp[i]->section->symbol == asympp[i]))
asympp[i]->flags |= BSF_KEEP;
symbol_mark_written (symp);
/* Include this section symbol in the symbol table. */
if (symbol_section_p (symp))
asympp[i]->flags |= BSF_SECTION_SYM_USED;
i++;
}
}
else
asympp = 0;
@ -2058,6 +2073,10 @@ maybe_generate_build_notes (void)
bfd_section_size (bsym->section),
note);
/* Mark the section symbol used in relocation so that it will be
included in the symbol table. */
symbol_mark_used_in_reloc (sym);
total_size += note_size;
/* FIXME: Maybe add a note recording the assembler command line and version ? */
}

86
ld/ChangeLog
View File

@ -1,3 +1,89 @@
2021-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR 27109
* testsuite/ld-elf/export-class.sd: Adjust the expected output.
* testsuite/ld-elf/loadaddr3b.d: Likewise.
* testsuite/ld-i386/ibt-plt-1.d: Likewise.
* testsuite/ld-i386/ibt-plt-2a.d: Likewise.
* testsuite/ld-i386/ibt-plt-2c.d: Likewise.
* testsuite/ld-i386/ibt-plt-3a.d: Likewise.
* testsuite/ld-i386/ibt-plt-3c.d: Likewise.
* testsuite/ld-i386/pr19636-1d.d: Likewise.
* testsuite/ld-i386/pr19636-1l.d: Likewise.
* testsuite/ld-i386/pr19636-2c.d: Likewise.
* testsuite/ld-ifunc/ifunc-2-i386-now.d: Likewise.
* testsuite/ld-ifunc/ifunc-2-local-i386-now.d: Likewise.
* testsuite/ld-ifunc/ifunc-2-local-x86-64-now.d: Likewise.
* testsuite/ld-ifunc/ifunc-2-x86-64-now.d: Likewise.
* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
* testsuite/ld-ifunc/pr17154-i386-now.d: Likewise.
* testsuite/ld-ifunc/pr17154-i386.d: Likewise.
* testsuite/ld-ifunc/pr17154-x86-64-now.d: Likewise.
* testsuite/ld-ifunc/pr17154-x86-64.d: Likewise.
* testsuite/ld-x86-64/bnd-branch-1-now.d: Likewise.
* testsuite/ld-x86-64/bnd-ifunc-1-now.d: Likewise.
* testsuite/ld-x86-64/bnd-ifunc-2-now.d: Likewise.
* testsuite/ld-x86-64/bnd-ifunc-2.d: Likewise.
* testsuite/ld-x86-64/bnd-plt-1-now.d: Likewise.
* testsuite/ld-x86-64/bnd-plt-1.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-1-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-1.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2a.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2c-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-2c.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-3a-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-3a.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-3c-x32.d: Likewise.
* testsuite/ld-x86-64/ibt-plt-3c.d: Likewise.
* testsuite/ld-x86-64/pr19609-4e.d: Likewise.
* testsuite/ld-x86-64/pr19609-6a.d: Likewise.
* testsuite/ld-x86-64/pr19609-6b.d: Likewise.
* testsuite/ld-x86-64/pr19609-7b.d: Likewise.
* testsuite/ld-x86-64/pr19609-7d.d: Likewise.
* testsuite/ld-x86-64/pr19636-2l.d: Likewise.
* testsuite/ld-x86-64/pr20253-1d.d: Likewise.
* testsuite/ld-x86-64/pr20253-1h.d: Likewise.
* testsuite/ld-x86-64/pr21038b-now.d: Likewise.
* testsuite/ld-x86-64/pr21038b.d: Likewise.
* testsuite/ld-x86-64/pr21038c-now.d: Likewise.
* testsuite/ld-x86-64/pr21038c.d: Likewise.
* testsuite/ld-x86-64/pr23854.d: Likewise.
* testsuite/ld-x86-64/pr25416-3.d: Likewise.
* testsuite/ld-x86-64/pr25416-4.d: Likewise.
* testsuite/ld-i386/plt-pic.pd: Likewise.
* testsuite/ld-i386/plt-pic2.dd: Likewise.
* testsuite/ld-i386/plt.pd: Likewise.
* testsuite/ld-i386/plt2.dd: Likewise.
* testsuite/ld-i386/tlsbin.rd: Likewise.
* testsuite/ld-i386/tlsbin2.rd: Likewise.
* testsuite/ld-i386/tlsbindesc.rd: Likewise.
* testsuite/ld-i386/tlsdesc.rd: Likewise.
* testsuite/ld-i386/tlsgdesc.rd: Likewise.
* testsuite/ld-i386/tlsnopic.rd: Likewise.
* testsuite/ld-i386/tlspic.rd: Likewise.
* testsuite/ld-i386/tlspic2.rd: Likewise.
* testsuite/ld-x86-64/mpx3.dd: Likewise.
* testsuite/ld-x86-64/mpx3n.dd: Likewise.
* testsuite/ld-x86-64/mpx4.dd: Likewise.
* testsuite/ld-x86-64/mpx4n.dd: Likewise.
* testsuite/ld-x86-64/pe-x86-64-1.od: Likewise.
* testsuite/ld-x86-64/pe-x86-64-2.od: Likewise.
* testsuite/ld-x86-64/pe-x86-64-3.od: Likewise.
* testsuite/ld-x86-64/pe-x86-64-4.od: Likewise.
* testsuite/ld-x86-64/plt.pd: Likewise.
* testsuite/ld-x86-64/plt2.dd: Likewise.
* testsuite/ld-x86-64/tlsbin.rd: Likewise.
* testsuite/ld-x86-64/tlsbin2.rd: Likewise.
* testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
* testsuite/ld-x86-64/tlsdesc.rd: Likewise.
* testsuite/ld-x86-64/tlsgdesc.rd: Likewise.
* testsuite/ld-x86-64/tlspic.rd: Likewise.
* testsuite/ld-x86-64/tlspic2.rd: Likewise.
* testsuite/ld-elf/sec64k.exp: Check
is_elf_unused_section_symbols.
2021-01-07 Alan Modra <amodra@gmail.com>
* testsuite/ld-scripts/fill.d: Skip sh-*-pe rather than xfail.

2
ld/testsuite/ld-elf/export-class.sd
View File

@ -9,8 +9,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
#...
Symbol table '\.symtab' contains [0-9]+ entries:
* Num: * Value * Size * Type * Bind * Vis * Ndx * Name
#...
* [0-9a-f]+: * 0*12340000 * 0 * SECTION * LOCAL * DEFAULT * [0-9]+ *
#...
* [0-9a-f]+: * 0*123400a0 * 0 * NOTYPE * LOCAL * DEFAULT * [0-9]+ * hidden_foo
#...

3
ld/testsuite/ld-elf/loadaddr3b.d
View File

@ -3,9 +3,6 @@
#objdump: -t
#target: *-*-linux* *-*-gnu* arm*-*-uclinuxfdpiceabi
#...
0+0000100 l d .text 0+0000000 .text
0+0000200 l d .data 0+0000000 .data
#...
0+0000110 g \*ABS\* 0+0000000 data_load
#...

14
ld/testsuite/ld-elf/sec64k.exp
View File

@ -198,11 +198,15 @@ if { ![istarget "d10v-*-*"]
puts $ofd " \\\[65279\\\] \\.foo\\.\[0-9\]+ .*"
puts $ofd " \\\[65280\\\] \\.foo\\.\[0-9\]+ .*"
puts $ofd "#..."
puts $ofd " 660..: \[0-9a-f\]+\[ \]+0\[ \]+SECTION\[ \]+LOCAL\[ \]+DEFAULT\[ \]+660.. "
puts $ofd "#..."
puts $ofd " 660..: \[0-9a-f\]+\[ \]+0\[ \]+NOTYPE\[ \]+LOCAL\[ \]+DEFAULT\[ \]+\[0-9\] bar_1$"
puts $ofd "#..."
puts $ofd ".* bar_66000$"
if { [is_elf_unused_section_symbols ] } {
puts $ofd " 660..: \[0-9a-f\]+\[ \]+0\[ \]+SECTION\[ \]+LOCAL\[ \]+DEFAULT\[ \]+660.. "
puts $ofd "#..."
puts $ofd " 660..: \[0-9a-f\]+\[ \]+0\[ \]+NOTYPE\[ \]+LOCAL\[ \]+DEFAULT\[ \]+\[0-9\] bar_1$"
puts $ofd "#..."
puts $ofd ".* bar_66000$"
} else {
puts $ofd " 66...: \[0-9a-f\]+\[ \]+0\[ \]+NOTYPE\[ \]+LOCAL\[ \]+DEFAULT\[ \]+660.. bar_66000$"
}
puts $ofd "#..."
# Global symbols are not in "alphanumeric" order, so we just check
# that the first and the last are present in any order (assuming no

4
ld/testsuite/ld-i386/ibt-plt-1.d
View File

@ -13,11 +13,11 @@ Disassembly of section .plt:
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\)
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: e9 e2 ff ff ff jmp [a-f0-9]+ <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: e9 d2 ff ff ff jmp [a-f0-9]+ <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:

4
ld/testsuite/ld-i386/ibt-plt-2a.d
View File

@ -14,11 +14,11 @@ Disassembly of section .plt:
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\)
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:

4
ld/testsuite/ld-i386/ibt-plt-2c.d
View File

@ -14,11 +14,11 @@ Disassembly of section .plt:
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\)
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: e9 e2 ff ff ff jmp [a-f0-9]+ <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: e9 d2 ff ff ff jmp [a-f0-9]+ <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:

4
ld/testsuite/ld-i386/ibt-plt-3a.d
View File

@ -14,11 +14,11 @@ Disassembly of section .plt:
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\)
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:

4
ld/testsuite/ld-i386/ibt-plt-3c.d
View File

@ -14,11 +14,11 @@ Disassembly of section .plt:
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\)
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 e2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fb endbr32
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <.plt>
+[a-f0-9]+: e9 d2 ff ff ff jmp 140 <bar1@plt-0x30>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:

6
ld/testsuite/ld-i386/plt-pic.pd
View File

@ -8,7 +8,7 @@
Disassembly of section .plt:
[0-9a-f]+ <.plt>:
[0-9a-f]+ <fn1@plt-0x10>:
+[0-9a-f]+: ff b3 04 00 00 00 push 0x4\(%ebx\)
+[0-9a-f]+: ff a3 08 00 00 00 jmp \*0x8\(%ebx\)
#...
@ -16,9 +16,9 @@ Disassembly of section .plt:
[0-9a-f]+ <fn1@plt>:
+[0-9a-f]+: ff a3 ([0-9a-f]{2} ){4} * jmp \*0x[0-9a-f]+\(%ebx\)
+[0-9a-f]+: 68 00 00 00 00 push \$0x0
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <.plt>
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <fn1@plt-0x10>
[0-9a-f]+ <fn2@plt>:
+[0-9a-f]+: ff a3 ([0-9a-f]{2} ){4} * jmp \*0x[0-9a-f]+\(%ebx\)
+[0-9a-f]+: 68 08 00 00 00 push \$0x8
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <.plt>
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <fn1@plt-0x10>

6
ld/testsuite/ld-i386/plt-pic2.dd
View File

@ -9,7 +9,7 @@
Disassembly of section .plt:
.* <.plt>:
.* <fn1@plt-0x10>:
+[a-f0-9]+: ff b3 04 00 00 00 push 0x4\(%ebx\)
+[a-f0-9]+: ff a3 08 00 00 00 jmp \*0x8\(%ebx\)
+[a-f0-9]+: 00 00 add %al,\(%eax\)
@ -18,12 +18,12 @@ Disassembly of section .plt:
.* <fn1@plt>:
+[a-f0-9]+: ff a3 0c 00 00 00 jmp \*0xc\(%ebx\)
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e0 ff ff ff jmp .* <.plt>
+[a-f0-9]+: e9 e0 ff ff ff jmp .* <fn1@plt-0x10>
.* <fn2@plt>:
+[a-f0-9]+: ff a3 10 00 00 00 jmp \*0x10\(%ebx\)
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d0 ff ff ff jmp .* <.plt>
+[a-f0-9]+: e9 d0 ff ff ff jmp .* <fn1@plt-0x10>
Disassembly of section .text:

6
ld/testsuite/ld-i386/plt.pd
View File

@ -8,7 +8,7 @@
Disassembly of section .plt:
[0-9a-f]+ <.plt>:
[0-9a-f]+ <fn1@plt-0x10>:
+[0-9a-f]+: ff 35 ([0-9a-f]{2} ){4} * push 0x[0-9a-f]+
+[0-9a-f]+: ff 25 ([0-9a-f]{2} ){4} * jmp \*0x[0-9a-f]+
#...
@ -16,9 +16,9 @@ Disassembly of section .plt:
[0-9a-f]+ <fn1@plt>:
+[0-9a-f]+: ff 25 ([0-9a-f]{2} ){4} * jmp \*0x[0-9a-f]+
+[0-9a-f]+: 68 00 00 00 00 push \$0x0
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <.plt>
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <fn1@plt-0x10>
[0-9a-f]+ <fn2@plt>:
+[0-9a-f]+: ff 25 ([0-9a-f]{2} ){4} * jmp \*0x[0-9a-f]+
+[0-9a-f]+: 68 08 00 00 00 push \$0x8
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <.plt>
+[0-9a-f]+: e9 ([0-9a-f]{2} ){4} * jmp [0-9a-f]+ <fn1@plt-0x10>

6
ld/testsuite/ld-i386/plt2.dd
View File

@ -9,7 +9,7 @@
Disassembly of section .plt:
0+8048160 <.plt>:
0+8048160 <fn1@plt-0x10>:
+[a-f0-9]+: ff 35 40 92 04 08 push 0x8049240
+[a-f0-9]+: ff 25 44 92 04 08 jmp \*0x8049244
+[a-f0-9]+: 00 00 add %al,\(%eax\)
@ -18,12 +18,12 @@ Disassembly of section .plt:
0+8048170 <fn1@plt>:
+[a-f0-9]+: ff 25 48 92 04 08 jmp \*0x8049248
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e0 ff ff ff jmp 8048160 <.plt>
+[a-f0-9]+: e9 e0 ff ff ff jmp 8048160 <fn1@plt-0x10>
0+8048180 <fn2@plt>:
+[a-f0-9]+: ff 25 4c 92 04 08 jmp \*0x804924c
+[a-f0-9]+: 68 08 00 00 00 push \$0x8
+[a-f0-9]+: e9 d0 ff ff ff jmp 8048160 <.plt>
+[a-f0-9]+: e9 d0 ff ff ff jmp 8048160 <fn1@plt-0x10>
Disassembly of section .text:

2
ld/testsuite/ld-i386/pr19636-1d.d
View File

@ -22,4 +22,4 @@ Disassembly of section .text:
.* <_start>:
[ ]*[a-f0-9]+: 3b 80 f8 ff ff ff cmp -0x8\(%eax\),%eax
[ ]*[a-f0-9]+: ff a0 fc ff ff ff jmp \*-0x4\(%eax\)
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <\.plt\+0x10>
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <_start-0x10>

2
ld/testsuite/ld-i386/pr19636-1l.d
View File

@ -23,4 +23,4 @@ Disassembly of section .text:
.* <_start>:
[ ]*[a-f0-9]+: 3b 80 f8 ff ff ff cmp -0x8\(%eax\),%eax
[ ]*[a-f0-9]+: ff a0 fc ff ff ff jmp \*-0x4\(%eax\)
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <\.plt\+0x10>
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <_start-0x10>

2
ld/testsuite/ld-i386/pr19636-2c.d
View File

@ -22,6 +22,6 @@ Disassembly of section .text:
.* <_start>:
[ ]*[a-f0-9]+: 3b 80 fc ff ff ff cmp -0x4\(%eax\),%eax
[ ]*[a-f0-9]+: ff a0 fc ff ff ff jmp \*-0x4\(%eax\)
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <\.plt\+0x10>
[ ]*[a-f0-9]+: e8 df ff ff ff call .* <_start-0x10>
[ ]*[a-f0-9]+: 3d 00 00 00 00 cmp \$0x0,%eax
[ ]*[a-f0-9]+: e8 fc ff ff ff call .* <_start\+0x17>

13
ld/testsuite/ld-i386/tlsbin.rd
View File

@ -84,19 +84,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
Symbol table '\.symtab' contains [0-9]+ entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+[0-9]+: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +1 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +2 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +3 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +4 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +5 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +6 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +7 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +8 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +9 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +10 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +11 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +12 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +13 *
.* FILE +LOCAL +DEFAULT +ABS .*tlsbinpic.o
+[0-9]+: 00000020 +0 +TLS +LOCAL +DEFAULT +9 sl1
+[0-9]+: 00000024 +0 +TLS +LOCAL +DEFAULT +9 sl2

11
ld/testsuite/ld-i386/tlsbin2.rd
View File

@ -79,17 +79,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
Symbol table '\.symtab' contains [0-9]+ entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+[0-9]+: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +1 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +2 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +3 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +4 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +5 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +6 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +7 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +8 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +9 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +10 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +11 *
.* FILE +LOCAL +DEFAULT +ABS .*tlsbinpic2.o
+[0-9]+: 00000020 +0 +TLS +LOCAL +DEFAULT +7 sl1
+[0-9]+: 00000024 +0 +TLS +LOCAL +DEFAULT +7 sl2

11
ld/testsuite/ld-i386/tlsbindesc.rd
View File

@ -77,17 +77,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
Symbol table '\.symtab' contains [0-9]+ entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+[0-9]+: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +1 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +2 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +3 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +4 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +5 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +6 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +7 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +8 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +9 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +10 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +11 *
.* FILE +LOCAL +DEFAULT +ABS .*tlsbindesc.o
+[0-9]+: 00000020 +0 +TLS +LOCAL +DEFAULT +7 sl1
+[0-9]+: 00000024 +0 +TLS +LOCAL +DEFAULT +7 sl2

11
ld/testsuite/ld-i386/tlsdesc.rd
View File

@ -92,17 +92,6 @@ Symbol table '\.dynsym' contains [0-9]+ entries:
Symbol table '\.symtab' contains [0-9]+ entries:
+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
+[0-9]+: 0+ +0 +NOTYPE +LOCAL +DEFAULT +UND *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +1 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +2 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +3 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +4 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +5 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +6 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +7 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +8 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +9 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +10 *
+[0-9]+: [0-9a-f]+ +0 +SECTION +LOCAL +DEFAULT +11 *
.* FILE +LOCAL +DEFAULT +ABS .*tlsdesc.o
+[0-9]+: 0+20 +0 +TLS +LOCAL +DEFAULT +7 sl1
+[0-9]+: 0+24 +0 +TLS +LOCAL +DEFAULT +7 sl2

Some files were not shown because too many files have changed in this diff Show More