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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2017-08-17 14:48:03 +0100 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2017-08-17 14:48:03 +0100 |
| commit | 545bc2b377db80aa6edd0cf00cde6f963735f8d1 (patch) | |
| tree | 89e99808be23a54adbc6807f6782886deba5bb3a | |
| parent | 12601963cf4de26be1db45ee58ac3e282936aca5 (diff) | |
| download | gdb-545bc2b377db80aa6edd0cf00cde6f963735f8d1.zip gdb-545bc2b377db80aa6edd0cf00cde6f963735f8d1.tar.gz gdb-545bc2b377db80aa6edd0cf00cde6f963735f8d1.tar.bz2 | |
[AArch64] Skip IFUNC relocations in debug sections
Skip IFUNC relocations in debug sections ignored by ld.so.
Fixes the following ld test failures on aarch64:
FAIL: Build libpr18808.so
FAIL: Build libpr18808.so_2
FAIL: Run pr18808
aborting at bfd/elfnn-aarch64.c:4986 in elf64_aarch64_final_link_relocate.
bfd/
PR ld/18808
* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Skip IFUNC
relocations in debug sections, change abort to _bfd_error_handler.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elfnn-aarch64.c | 25 |
2 files changed, 28 insertions, 3 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 914c10d..e1985a4 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2017-08-17 Szabolcs Nagy <szabolcs.nagy@arm.com> + + PR ld/18808 + * elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Skip IFUNC + relocations in debug sections, change abort to _bfd_error_handler. + 2017-08-14 Nick Clifton <nickc@redhat.com> PR 21957 diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c index 0d8332e..796fe1f 100644 --- a/bfd/elfnn-aarch64.c +++ b/bfd/elfnn-aarch64.c @@ -4981,9 +4981,27 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, const char *name; bfd_vma addend = 0; - if ((input_section->flags & SEC_ALLOC) == 0 - || h->plt.offset == (bfd_vma) -1) - abort (); + if ((input_section->flags & SEC_ALLOC) == 0) + { + /* Dynamic relocs are not propagated for SEC_DEBUGGING + sections because such sections are not SEC_ALLOC and + thus ld.so will not process them. */ + if ((input_section->flags & SEC_DEBUGGING) != 0) + return bfd_reloc_ok; + + if (h->root.root.string) + name = h->root.root.string; + else + name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, NULL); + _bfd_error_handler + /* xgettext:c-format */ + (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"), + input_bfd, input_section, rel->r_offset, howto->name, name); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + else if (h->plt.offset == (bfd_vma) -1) + goto bad_ifunc_reloc; /* STT_GNU_IFUNC symbol must go through PLT. */ plt = globals->root.splt ? globals->root.splt : globals->root.iplt; @@ -4992,6 +5010,7 @@ elfNN_aarch64_final_link_relocate (reloc_howto_type *howto, switch (bfd_r_type) { default: +bad_ifunc_reloc: if (h->root.root.string) name = h->root.root.string; else |