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| author | Alan Modra <amodra@gmail.com> | 2020-07-10 10:48:45 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-07-10 11:14:38 +0930 |
| commit | d3b10ee787216d304a858246656ed2fdaecdfd93 (patch) | |
| tree | 8a07c8d1aae6020bbf39bbc27fe4f7d309e95433 /ld/emultempl/ppc64elf.em | |
| parent | bf7682fdf7cf8e1efd361063e2a3a01eca953958 (diff) | |
| download | gdb-d3b10ee787216d304a858246656ed2fdaecdfd93.zip gdb-d3b10ee787216d304a858246656ed2fdaecdfd93.tar.gz gdb-d3b10ee787216d304a858246656ed2fdaecdfd93.tar.bz2 | |
PowerPC64 ld --no-power10-stubs
Needed for libraries that use ifuncs or other means to support
cpu-optimized versions of functions, some power10, some not, and those
functions make calls using linkage stubs.
bfd/
* elf64-ppc.h (struct ppc64_elf_params): Add power10_stubs.
* elf64-ppc.c (struct ppc_link_hash_table): Delete
power10_stubs.
(ppc64_elf_check_relocs): Adjust setting of power10_stubs.
(plt_stub_size, ppc_build_one_stub, ppc_size_one_stub): Adjust
uses of power10_stubs.
ld/
* emultempl/ppc64elf.em (params): Init new field.
(enum ppc64_opt): Add OPTION_POWER10_STUBS and OPTION_NO_POWER10_STUBS.
(PARSE_AND_LIST_LONGOPTS): Support --power10-stubs and
--no-power10-stubs.
(PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Likewise.
* testsuite/ld-powerpc/callstub-3.d: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
Diffstat (limited to 'ld/emultempl/ppc64elf.em')
| -rw-r--r-- | ld/emultempl/ppc64elf.em | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/ld/emultempl/ppc64elf.em b/ld/emultempl/ppc64elf.em index a2834c8..4987243 100644 --- a/ld/emultempl/ppc64elf.em +++ b/ld/emultempl/ppc64elf.em @@ -38,7 +38,7 @@ static struct ppc64_elf_params params = { NULL, &ppc_layout_sections_again, 1, -1, -1, 0, ${DEFAULT_PLT_STATIC_CHAIN-0}, -1, 5, - -1, 0, -1, -1, 0}; + -1, -1, 0, -1, -1, 0}; /* Fake input file for stubs. */ static lang_input_statement_type *stub_file; @@ -684,6 +684,8 @@ enum ppc64_opt OPTION_NO_PLT_ALIGN, OPTION_PLT_LOCALENTRY, OPTION_NO_PLT_LOCALENTRY, + OPTION_POWER10_STUBS, + OPTION_NO_POWER10_STUBS, OPTION_STUBSYMS, OPTION_NO_STUBSYMS, OPTION_SAVRES, @@ -714,6 +716,8 @@ PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}' { "no-plt-align", no_argument, NULL, OPTION_NO_PLT_ALIGN }, { "plt-localentry", optional_argument, NULL, OPTION_PLT_LOCALENTRY }, { "no-plt-localentry", no_argument, NULL, OPTION_NO_PLT_LOCALENTRY }, + { "power10-stubs", no_argument, NULL, OPTION_POWER10_STUBS }, + { "no-power10-stubs", no_argument, NULL, OPTION_NO_POWER10_STUBS }, { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS }, { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS }, { "dotsyms", no_argument, NULL, OPTION_DOTSYMS }, @@ -769,6 +773,12 @@ PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}' --no-plt-localentry Don'\''t optimize ELFv2 calls\n" )); fprintf (file, _("\ + --power10-stubs Use Power10 PLT call stubs (default auto)\n" + )); + fprintf (file, _("\ + --no-power10-stubs Don'\''t use Power10 PLT call stubs\n" + )); + fprintf (file, _("\ --emit-stub-syms Label linker stubs with a symbol\n" )); fprintf (file, _("\ @@ -878,6 +888,14 @@ PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}' params.plt_localentry0 = 0; break; + case OPTION_POWER10_STUBS: + params.power10_stubs = 1; + break; + + case OPTION_NO_POWER10_STUBS: + params.power10_stubs = 0; + break; + case OPTION_STUBSYMS: params.emit_stub_syms = 1; break; |