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Adjust linkonce symbol name algorithm to work for

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.gnu.linkonce.t.__i686.get_pc_thunk.bx.
This commit is contained in:
Ian Lance Taylor 2007-10-14 07:27:10 +00:00
parent d20222a1e7
commit ad435a2465
1 changed files with 14 additions and 1 deletions
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15
gold/object.cc
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@ -383,7 +383,20 @@ Sized_relobj<size, big_endian>::include_linkonce_section(
const char* name,
const elfcpp::Shdr<size, big_endian>&)
{
const char* symname = strrchr(name, '.') + 1;
// In general the symbol name we want will be the string following
// the last '.'. However, we have to handle the case of
// .gnu.linkonce.t.__i686.get_pc_thunk.bx, which was generated by
// some versions of gcc. So we use a heuristic: if the name starts
// with ".gnu.linkonce.t.", we use everything after that. Otherwise
// we look for the last '.'. We can't always simply skip
// ".gnu.linkonce.X", because we have to deal with cases like
// ".gnu.linkonce.d.rel.ro.local".
const char* const linkonce_t = ".gnu.linkonce.t.";
const char* symname;
if (strncmp(name, linkonce_t, strlen(linkonce_t)) == 0)
symname = name + strlen(linkonce_t);
else
symname = strrchr(name, '.') + 1;
bool include1 = layout->add_comdat(symname, false);
bool include2 = layout->add_comdat(name, true);
return include1 && include2;