2012-11-19 17:32:37 +00:00
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See http://sourceware.org/bugzilla/show_bug.cgi?id=13990 for details.
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---
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2013-02-26 16:40:12 +00:00
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--- a/bfd/elf32-arm.c
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+++ b/bfd/elf32-arm.c
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@@ -12046,8 +12046,19 @@ elf32_arm_gc_sweep_hook (bfd *
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2012-11-19 17:32:37 +00:00
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if (may_need_local_target_p
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&& elf32_arm_get_plt_info (abfd, eh, r_symndx, &root_plt, &arm_plt))
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{
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- BFD_ASSERT (root_plt->refcount > 0);
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- root_plt->refcount -= 1;
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+ /* If PLT refcount book-keeping is wrong and too low, we'll
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+ see a zero value (going to -1) for the root PLT reference
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+ count. */
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+ if (root_plt->refcount >= 0)
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+ {
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+ BFD_ASSERT (root_plt->refcount != 0);
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+ root_plt->refcount -= 1;
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+ }
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+ else
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+ /* A value of -1 means the symbol has become local, forced
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+ or seeing a hidden definition. Any other negative value
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+ is an error. */
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+ BFD_ASSERT (root_plt->refcount == -1);
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if (!call_reloc_p)
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arm_plt->noncall_refcount--;
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