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6766a3d |
--- binutils.orig/binutils/objdump.c 2018-03-05 17:04:19.901619738 +0000
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+++ binutils-2.29/binutils/objdump.c 2018-03-05 17:10:08.334643096 +0000
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@@ -664,9 +664,7 @@ slurp_dynamic_symtab (bfd *abfd)
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static bfd_boolean
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is_significant_symbol_name (const char * name)
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{
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- return strcmp (name, ".plt") == 0
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- || strcmp (name, ".got") == 0
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- || strcmp (name, ".plt.got") == 0;
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+ return strncmp (name, ".plt", 4) == 0 || strcmp (name, ".got") == 0;
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}
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/* Filter out (in place) symbols that are useless for disassembly.
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@@ -937,6 +935,7 @@ find_symbol_for_address (bfd_vma vma,
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asection *sec;
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unsigned int opb;
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bfd_boolean want_section;
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+ long rel_count;
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if (sorted_symcount < 1)
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return NULL;
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6766a3d |
@@ -1065,33 +1064,59 @@ find_symbol_for_address (bfd_vma vma,
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and we have dynamic relocations available, then we can produce
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a better result by matching a relocation to the address and
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using the symbol associated with that relocation. */
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+ rel_count = aux->dynrelcount;
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if (!want_section
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- && aux->dynrelbuf != NULL
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&& sorted_syms[thisplace]->value != vma
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+ && rel_count > 0
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+ && aux->dynrelbuf != NULL
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+ && aux->dynrelbuf[0]->address <= vma
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+ && aux->dynrelbuf[rel_count - 1]->address >= vma
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/* If we have matched a synthetic symbol, then stick with that. */
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&& (sorted_syms[thisplace]->flags & BSF_SYNTHETIC) == 0)
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{
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- long rel_count;
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- arelent ** rel_pp;
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+ arelent ** rel_low;
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+ arelent ** rel_high;
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- for (rel_count = aux->dynrelcount, rel_pp = aux->dynrelbuf;
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- rel_count--;)
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+ rel_low = aux->dynrelbuf;
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+ rel_high = rel_low + rel_count - 1;
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+ while (rel_low <= rel_high)
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{
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- arelent * rel = rel_pp[rel_count];
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+ arelent ** rel_mid = &rel_low[(rel_high - rel_low) / 2];
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+ arelent * rel = *rel_mid;
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- if (rel->address == vma
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- && rel->sym_ptr_ptr != NULL
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- /* Absolute relocations do not provide a more helpful symbolic address. */
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- && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section))
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+ if (rel->address == vma)
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{
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- if (place != NULL)
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- * place = thisplace;
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- return * rel->sym_ptr_ptr;
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+ /* Absolute relocations do not provide a more helpful
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+ symbolic address. Find a non-absolute relocation
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+ with the same address. */
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+
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+ arelent **rel_vma = rel_mid;
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+
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+ for (rel_mid--;
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+ rel_mid >= rel_low && rel_mid[0]->address == vma;
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+ rel_mid--)
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+ rel_vma = rel_mid;
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+
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+ for (; rel_vma <= rel_high && rel_vma[0]->address == vma;
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+ rel_vma++)
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+ {
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+ rel = *rel_vma;
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+ if (rel->sym_ptr_ptr != NULL
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+ && ! bfd_is_abs_section ((* rel->sym_ptr_ptr)->section))
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+ {
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+ if (place != NULL)
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+ * place = thisplace;
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+ return * rel->sym_ptr_ptr;
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+ }
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+ }
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+ break;
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}
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6766a3d |
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- /* We are scanning backwards, so if we go below the target address
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- we have failed. */
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- if (rel_pp[rel_count]->address < vma)
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+ if (vma < rel->address)
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+ rel_high = rel_mid;
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+ else if (vma >= rel_mid[1]->address)
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+ rel_low = rel_mid + 1;
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+ else
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break;
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}
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}
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