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gold: Handle DW_AT_high_pc as offset from DW_AT_low_pc in gdb-index.cc.

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* dwarf_reader.cc (Dwarf_die::address_attribute): New function.
        * dwarf_reader.h (Dwarf_die::address_attribute): Likewise.
        * gdb-index.cc (Gdb_index_info_reader::record_cu_ranges): Handle
        DW_AT_high_pc as offset from DW_AT_low_pc.

        * testsuite/Makefile.am (gdb_index_test_3.sh): New test case.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/gdb_index_test_3.c: New test source file.
        * testsuite/gdb_index_test_3.sh: New test source file.
This commit is contained in:
Mark Wielaard
2012-05-01 19:12:21 +00:00
parent 57402f1e31
commit 57923f48a1
6 changed files with 82 additions and 24 deletions
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12
gold/gdb-index.cc
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@@ -823,9 +823,15 @@ Gdb_index_info_reader::record_cu_ranges(Dwarf_die* die)
return;
}
off_t low_pc = die->ref_attribute(elfcpp::DW_AT_low_pc, &shndx);
off_t high_pc = die->ref_attribute(elfcpp::DW_AT_high_pc, &shndx2);
if ((low_pc != 0 || high_pc != 0) && low_pc != -1 && high_pc != -1)
off_t low_pc = die->address_attribute(elfcpp::DW_AT_low_pc, &shndx);
off_t high_pc = die->address_attribute(elfcpp::DW_AT_high_pc, &shndx2);
if (high_pc == -1)
{
high_pc = die->uint_attribute(elfcpp::DW_AT_high_pc);
high_pc += low_pc;
shndx2 = shndx;
}
if ((low_pc != 0 || high_pc != 0) && low_pc != -1)
{
if (shndx != shndx2)
{