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| author | Cary Coutant <ccoutant@gmail.com> | 2018-06-22 09:27:39 -0700 |
|---|---|---|
| committer | Cary Coutant <ccoutant@gmail.com> | 2018-06-22 09:52:00 -0700 |
| commit | 6c04fd9b2fb4396c0189cb414ce598161ac8673e (patch) | |
| tree | 8b3630b03edb8d663a592b472cae1292aad05e7c /gold/target.h | |
| parent | 8e7767e3f782c46451a548d708f5582669d7a6d7 (diff) | |
| download | gdb-6c04fd9b2fb4396c0189cb414ce598161ac8673e.zip gdb-6c04fd9b2fb4396c0189cb414ce598161ac8673e.tar.gz gdb-6c04fd9b2fb4396c0189cb414ce598161ac8673e.tar.bz2 | |
Add support for .note.gnu.property sections.
elfcpp/
PR gold/22914
* elfcpp.h (NT_GNU_PROPERTY_TYPE_0): New note type.
(GNU_PROPERTY_*): New Gnu property types.
* x86_64.h (GNU_PROPERTY_X86_FEATURE_1_IBT)
(GNU_PROPERTY_X86_FEATURE_1_SHSTK): New x86 feature bits.
gold/
PR gold/22914
* layout.cc (Layout::Layout): Initialize gnu_properties_.
(read_sized_value, write_sized_value): New functions.
(Layout::layout_gnu_property): New method.
(Layout::create_notes): Call create_gnu_properties_note.
(Layout::create_gnu_properties_note): New method.
* layout.h (Layout::layout_gnu_property): New method.
(Layout::create_gnu_properties_note): New method.
(Layout::Gnu_property, Layout::Gnu_properties): New types.
(Layout::gnu_properties_): New data member.
* object.cc (Sized_relobj_file::layout_gnu_property_section): New
method.
(Sized_relobj_file::do_layout): Handle .note.gnu.property sections.
* object.h (Sized_relobj_file::layout_gnu_property_section): New
method.
* target.h (Target::merge_gnu_property): New method.
(Target::do_merge_gnu_property): New virtual method.
* x86_64.cc (Target_x86_64::do_merge_gnu_property): New method.
* testsuite/Makefile.am (gnu_property_test): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/gnu_property_a.S: New source file.
* testsuite/gnu_property_b.S: New source file.
* testsuite/gnu_property_c.S: New source file.
* testsuite/gnu_property_main.c: New source file.
* testsuite/gnu_property_test.sh: New test script.
Diffstat (limited to 'gold/target.h')
| -rw-r--r-- | gold/target.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gold/target.h b/gold/target.h index da2f6bb..1f8f757 100644 --- a/gold/target.h +++ b/gold/target.h @@ -509,6 +509,23 @@ class Target should_include_section(elfcpp::Elf_Word sh_type) const { return this->do_should_include_section(sh_type); } + // Merge a target-specific program property in the .note.gnu.properties + // section. + void + merge_gnu_property(int note_type, + int pr_type, + size_t new_pr_datasz, + const unsigned char* new_pr_data, + size_t old_pr_datasz, + unsigned char* old_pr_data, + const Object* object) const + { + return this->do_merge_gnu_property(note_type, pr_type, + new_pr_datasz, new_pr_data, + old_pr_datasz, old_pr_data, + object); + } + protected: // This struct holds the constant information for a child class. We // use a struct to avoid the overhead of virtual function calls for @@ -815,6 +832,13 @@ class Target do_should_include_section(elfcpp::Elf_Word) const { return true; } + // Merge a target-specific program property in the .note.gnu.properties + // section. + virtual void + do_merge_gnu_property(int, int, size_t, const unsigned char*, + size_t, unsigned char*, const Object*) const + { } + private: // The implementations of the four do_make_elf_object virtual functions are // almost identical except for their sizes and endianness. We use a template. |