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Don't segfault on discarded section dynsyms

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We get lots of errors before we get to this code, but let's not
segfault.

	* elflink.c (bfd_elf_final_link): Don't segfault on local dynsyms
	defined in excluded sections.
This commit is contained in:
Alan Modra
2020-07-29 17:34:18 +09:30
parent 5987401fcb
commit 4d68fd750f
2 changed files with 9 additions and 1 deletions
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5
bfd/elflink.c
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@ -12599,10 +12599,13 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
the original st_name with the dynstr_index. */
sym = e->isym;
sym.st_other &= ~ELF_ST_VISIBILITY (-1);
sym.st_shndx = SHN_UNDEF;
s = bfd_section_from_elf_index (e->input_bfd,
e->isym.st_shndx);
if (s != NULL)
if (s != NULL
&& s->output_section != NULL
&& elf_section_data (s->output_section) != NULL)
{
sym.st_shndx =
elf_section_data (s->output_section)->this_idx;