http://sourceware.org/bugzilla/show_bug.cgi?id=14590
Bug #: 14590
Summary: ifunc problem: internal error, aborting at
elf64-x86-64.c line 3175 in
elf_x86_64_relocate_section
Product: binutils
Version: 2.24 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassig...@sourceware.org
ReportedBy: m...@suse.de
Classification: Unclassified
% cat x.c
#include <stdio.h>
int index;
int main() {
index=getchar();
return index;
}
% gcc -fno-builtin -static -g x.c
/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld: BFD
(GNU Binutils; devel:gcc / SLE-11) 2.22 internal error, aborting at
../../bfd/elf64-x86-64.c line 3094 in elf_x86_64_relocate_section
This is a problem also with older binutils. This requires a libc which has
the symbol 'index' defined as weak ifunc:
18: 0000000000000000 41 IFUNC WEAK DEFAULT 1 index
It only happens when linking statically. The abort is this one:
3170 bfd_vma plt_index;
3171 const char *name;
3172
3173 if ((input_section->flags & SEC_ALLOC) == 0
3174 || h->plt.offset == (bfd_vma) -1)
3175 abort ();
The reference this is about is from .debug_info (i.e. !SEC_ALLOC), hence
the abort. I don't know why it things it finds the ifunc definition
first (h->type is STT_GNU_IFUNC here), not the one in the COMMON section.
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