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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-06-07 21:18:01 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-06-08 03:53:43 -0700 |
| commit | 6322e5c5cb7ffe1c26c50f117765503717b0431c (patch) | |
| tree | 278fe5c87998fc591d6c4c8c81f7c74cc0f1101e /bfd/elf32-i386.c | |
| parent | 51fa2693add9ead8288f475d380f4aec7372fe5a (diff) | |
| download | gdb-6322e5c5cb7ffe1c26c50f117765503717b0431c.zip gdb-6322e5c5cb7ffe1c26c50f117765503717b0431c.tar.gz gdb-6322e5c5cb7ffe1c26c50f117765503717b0431c.tar.bz2 | |
x86: Dump local IFUNC functions in the map file
Dump local IFUNC functions in the map file when generating IRELATIVE
relocations if -Map is used.
bfd/
* elf32-i386.c (elf_i386_check_relocs): Set local IFUNC symbol
name. Use local IFUNC symbol name string to report unsupported
non-PIC call to IFUNC function.
(elf_i386_relocate_section): Dump local IFUNC name with minfo
when generating R_386_IRELATIVE relocation.
(elf_i386_finish_dynamic_symbol): Likewise.
* elf_x86_64_check_relocs (elf_x86_64_check_relocs): Set local
IFUNC symbol name.
(elf_x86_64_relocate_section): Dump local IFUNC name with minfo
when generating R_X86_64_IRELATIVE relocation.
(elf_x86_64_finish_dynamic_symbol): Likewise.
ld/
* testsuite/ld-ifunc/ifunc-1-local-x86.d: Pass
"-Map tmpdir/ifunc-1-local-x86.map" to ld and check
ifunc-1-local-x86.map.
* testsuite/ld-ifunc/ifunc-1-x86.d: Pass
"-Map tmpdir/ifunc-1-x86.map" to ld and check ifunc-1-x86.map.
* testsuite/ld-ifunc/ifunc-1-local-x86.map: New file.
* testsuite/ld-ifunc/ifunc-1-x86.map: Likewise.
Diffstat (limited to 'bfd/elf32-i386.c')
| -rw-r--r-- | bfd/elf32-i386.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 1fdc06c..e447e3d 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -1945,6 +1945,8 @@ elf_i386_check_relocs (bfd *abfd, goto error_return; /* Fake a STT_GNU_IFUNC symbol. */ + h->root.root.string = bfd_elf_sym_name (abfd, symtab_hdr, + isym, NULL); h->type = STT_GNU_IFUNC; h->def_regular = 1; h->ref_regular = 1; @@ -2181,15 +2183,10 @@ do_relocation: else if (h->type == STT_GNU_IFUNC && bfd_link_pic (info)) { - if (isym == NULL) - name = h->root.root.string; - else - name = bfd_elf_sym_name (abfd, symtab_hdr, isym, - NULL); - _bfd_error_handler - /* xgettext:c-format */ - (_("%B: unsupported non-PIC call to IFUNC `%s'"), - abfd, name); + _bfd_error_handler + /* xgettext:c-format */ + (_("%B: unsupported non-PIC call to IFUNC `%s'"), + abfd, h->root.root.string); bfd_set_error (bfd_error_bad_value); goto error_return; } @@ -4081,6 +4078,10 @@ do_ifunc_pointer: || h->forced_local || bfd_link_executable (info)) { + info->callbacks->minfo (_("Local IFUNC function `%s' in %B\n"), + h->root.root.string, + h->root.u.def.section->owner); + /* This symbol is resolved locally. */ outrel.r_info = ELF32_R_INFO (0, R_386_IRELATIVE); bfd_put_32 (output_bfd, @@ -5413,6 +5414,10 @@ elf_i386_finish_dynamic_symbol (bfd *output_bfd, && h->def_regular && h->type == STT_GNU_IFUNC)) { + info->callbacks->minfo (_("Local IFUNC function `%s' in %B\n"), + h->root.root.string, + h->root.u.def.section->owner); + /* If an STT_GNU_IFUNC symbol is locally defined, generate R_386_IRELATIVE instead of R_386_JUMP_SLOT. Store addend in the .got.plt section. */ @@ -5548,6 +5553,10 @@ elf_i386_finish_dynamic_symbol (bfd *output_bfd, } if (SYMBOL_REFERENCES_LOCAL (info, h)) { + info->callbacks->minfo (_("Local IFUNC function `%s' in %B\n"), + h->root.root.string, + h->root.u.def.section->owner); + bfd_put_32 (output_bfd, (h->root.u.def.value + h->root.u.def.section->output_section->vma |