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| author | Doug Kwan <dougkwan@google.com> | 2009-08-11 17:09:14 +0000 |
|---|---|---|
| committer | Doug Kwan <dougkwan@google.com> | 2009-08-11 17:09:14 +0000 |
| commit | 11af873fca0a3bc4c3476e35ec931a49dce101ee (patch) | |
| tree | 7640dafa4c9d52aebe0cec75f577d29fa7d9fe1f | |
| parent | 6a9adeca2c38bef2ae6554ecf954babda5dc6522 (diff) | |
| download | gdb-11af873fca0a3bc4c3476e35ec931a49dce101ee.zip gdb-11af873fca0a3bc4c3476e35ec931a49dce101ee.tar.gz gdb-11af873fca0a3bc4c3476e35ec931a49dce101ee.tar.bz2 | |
2009-08-11 Doug Kwan <dougkwan@google.com>
* arm.cc: Update comments.
(Target_arm::do_finalize_sections): Add a special PT_ARM_EXIDX
segment to locate the .ARM.exidx section if present.
| -rw-r--r-- | gold/ChangeLog | 6 | ||||
| -rw-r--r-- | gold/arm.cc | 31 |
2 files changed, 29 insertions, 8 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog index b71bc6c..7549382 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,9 @@ +2009-08-11 Doug Kwan <dougkwan@google.com> + + * arm.cc: Update comments. + (Target_arm::do_finalize_sections): Add a special PT_ARM_EXIDX + segment to locate the .ARM.exidx section if present. + 2009-08-09 Doug Kwan <dougkwan@google.com> * dynobj.h (Sized_dynobj::do_section_entsize): Revert the previous diff --git a/gold/arm.cc b/gold/arm.cc index 491f254..0e4a3eb 100644 --- a/gold/arm.cc +++ b/gold/arm.cc @@ -74,18 +74,14 @@ class Output_data_plt_arm; // R_ARM_TARGET1 // R_ARM_PREL31 // -// Coming soon (pending patches): -// - Defining section symbols __exidx_start and __exidx_stop. -// - Support interworking. -// - Mergeing all .ARM.xxx.yyy sections into .ARM.xxx. Currently, they -// are incorrectly merged into an .ARM section. -// // TODOs: -// - Create a PT_ARM_EXIDX program header for a shared object that -// might throw an exception. +// - Generate various branch stubs. +// - Support interworking. +// - Define section symbols __exidx_start and __exidx_stop. // - Support more relocation types as needed. // - Make PLTs more flexible for different architecture features like // Thumb-2 and BE8. +// There are probably a lot more. // Utilities for manipulating integers of up to 32-bits @@ -1463,6 +1459,25 @@ Target_arm<big_endian>::do_finalize_sections(Layout* layout) // relocs. if (this->copy_relocs_.any_saved_relocs()) this->copy_relocs_.emit(this->rel_dyn_section(layout)); + + // For the ARM target, we need to add a PT_ARM_EXIDX segment for + // the .ARM.exidx section. + if (!layout->script_options()->saw_phdrs_clause() + && !parameters->options().relocatable()) + { + Output_section* exidx_section = + layout->find_output_section(".ARM.exidx"); + + if (exidx_section != NULL + && exidx_section->type() == elfcpp::SHT_ARM_EXIDX) + { + gold_assert(layout->find_output_segment(elfcpp::PT_ARM_EXIDX, 0, 0) + == NULL); + Output_segment* exidx_segment = + layout->make_output_segment(elfcpp::PT_ARM_EXIDX, elfcpp::PF_R); + exidx_segment->add_output_section(exidx_section, elfcpp::PF_R); + } + } } // Return whether a direct absolute static relocation needs to be applied. |