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| author | Ian Lance Taylor <ian@airs.com> | 2011-07-02 00:03:25 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 2011-07-02 00:03:25 +0000 |
| commit | 02d7cd4495b617a9dc356b4f5140a74d020df6f5 (patch) | |
| tree | 14729ef21007268b56536b188b055be2987a4ca3 /gold/i386.cc | |
| parent | 3f26b7e8cb3d1e545a1461ded51f24259b1795e7 (diff) | |
| download | gdb-02d7cd4495b617a9dc356b4f5140a74d020df6f5.zip gdb-02d7cd4495b617a9dc356b4f5140a74d020df6f5.tar.gz gdb-02d7cd4495b617a9dc356b4f5140a74d020df6f5.tar.bz2 | |
PR gold/12525
* ehframe.cc (Eh_frame_hdr::get_fde_pc): Handle DW_EH_PE_datarel.
Assert if we see DW_EH_PE_indirect.
* target.h (Target::ehframe_datarel_base): New function.
(Target::do_ehframe_datarel_base): New target function.
* i386.cc (Target_i386::do_ehframe_datarel_base): New function.
* x86_64.cc (Target_x86_64::do_ehframe_datarel_base): New
function.
Diffstat (limited to 'gold/i386.cc')
| -rw-r--r-- | gold/i386.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gold/i386.cc b/gold/i386.cc index 6bec81f..65ff05f 100644 --- a/gold/i386.cc +++ b/gold/i386.cc @@ -295,6 +295,10 @@ class Target_i386 : public Sized_target<32, false> do_can_check_for_function_pointers() const { return true; } + // Return the base for a DW_EH_PE_datarel encoding. + uint64_t + do_ehframe_datarel_base() const; + // Return whether SYM is call to a non-split function. bool do_is_call_to_non_split(const Symbol* sym, unsigned int) const; @@ -3267,6 +3271,21 @@ Target_i386::do_code_fill(section_size_type length) const return std::string(nops[length], length); } +// Return the value to use for the base of a DW_EH_PE_datarel offset +// in an FDE. Solaris and SVR4 use DW_EH_PE_datarel because their +// assembler can not write out the difference between two labels in +// different sections, so instead of using a pc-relative value they +// use an offset from the GOT. + +uint64_t +Target_i386::do_ehframe_datarel_base() const +{ + gold_assert(this->global_offset_table_ != NULL); + Symbol* sym = this->global_offset_table_; + Sized_symbol<32>* ssym = static_cast<Sized_symbol<32>*>(sym); + return ssym->value(); +} + // Return whether SYM should be treated as a call to a non-split // function. We don't want that to be true of a call to a // get_pc_thunk function. |