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| author | Alan Modra <amodra@gmail.com> | 2019-09-11 13:22:42 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-09-28 16:47:52 +0930 |
| commit | ea8e302e12bd155a3acd79290ec87d7dda2cce61 (patch) | |
| tree | e853d2a083965ab1b5895d1b5597883a4051fb0c | |
| parent | cd5f43ff5db7b67009404aee4606eee603fb3f68 (diff) | |
| download | gdb-ea8e302e12bd155a3acd79290ec87d7dda2cce61.zip gdb-ea8e302e12bd155a3acd79290ec87d7dda2cce61.tar.gz gdb-ea8e302e12bd155a3acd79290ec87d7dda2cce61.tar.bz2 | |
PR16794, gold ignores R_386_GOTOFF addend
An R_386_GOTOFF relocation has an addend, typically used when a
symbol can be replaced by its section symbol plus an offset.
psymval->value(object,0) is quite wrong then, fix it.
PR 16794
* i386.cc (Target_i386::Relocate::relocate <R_386_GOTOFF>): Don't
ignore addend, apply using pcrel32.
* x86_64.cc (Target_x86_64::Relocate::relocate <R_X86_64_GOTOFF64>):
Similarly use pcrel64.
| -rw-r--r-- | gold/ChangeLog | 8 | ||||
| -rw-r--r-- | gold/i386.cc | 7 | ||||
| -rw-r--r-- | gold/x86_64.cc | 7 |
3 files changed, 14 insertions, 8 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog index 964b7d7..c2acb20 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,11 @@ +2019-09-28 Alan Modra <amodra@gmail.com> + + PR 16794 + * i386.cc (Target_i386::Relocate::relocate <R_386_GOTOFF>): Don't + ignore addend, apply using pcrel32. + * x86_64.cc (Target_x86_64::Relocate::relocate <R_X86_64_GOTOFF64>): + Similarly use pcrel64. + 2019-09-24 Nick Clifton <nickc@redhat.com> * descriptors.cc: Include <string> diff --git a/gold/i386.cc b/gold/i386.cc index dd0b268..2d3db7c 100644 --- a/gold/i386.cc +++ b/gold/i386.cc @@ -2957,10 +2957,9 @@ Target_i386::Relocate::relocate(const Relocate_info<32, false>* relinfo, case elfcpp::R_386_GOTOFF: { - elfcpp::Elf_types<32>::Elf_Addr value; - value = (psymval->value(object, 0) - - target->got_plt_section()->address()); - Relocate_functions<32, false>::rel32(view, value); + elfcpp::Elf_types<32>::Elf_Addr reladdr; + reladdr = target->got_plt_section()->address(); + Relocate_functions<32, false>::pcrel32(view, object, psymval, reladdr); } break; diff --git a/gold/x86_64.cc b/gold/x86_64.cc index c06a282..bafd90e 100644 --- a/gold/x86_64.cc +++ b/gold/x86_64.cc @@ -4852,10 +4852,9 @@ Target_x86_64<size>::Relocate::relocate( case elfcpp::R_X86_64_GOTOFF64: { - typename elfcpp::Elf_types<size>::Elf_Addr value; - value = (psymval->value(object, 0) - - target->got_plt_section()->address()); - Reloc_funcs::rela64(view, value, addend); + typename elfcpp::Elf_types<size>::Elf_Addr reladdr; + reladdr = target->got_plt_section()->address(); + Reloc_funcs::pcrela64(view, object, psymval, addend, reladdr); } break; |