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| author | Ian Lance Taylor <ian@airs.com> | 2008-05-20 04:00:47 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@airs.com> | 2008-05-20 04:00:47 +0000 |
| commit | 9f1d377b33ab688f86e1cc9a454d87f991d65f19 (patch) | |
| tree | c1b3a61a840a01d29858641f0db6b017124501d4 /gold/layout.h | |
| parent | 3285cf2c2fa75927a67ef845d47f5eb81770ac21 (diff) | |
| download | gdb-9f1d377b33ab688f86e1cc9a454d87f991d65f19.zip gdb-9f1d377b33ab688f86e1cc9a454d87f991d65f19.tar.gz gdb-9f1d377b33ab688f86e1cc9a454d87f991d65f19.tar.bz2 | |
* options.h (class General_options): Add -z relro.
* layout.cc (Layout::Layout): Initialize relro_segment_.
(Layout::add_output_section_data): Return the output section.
(Layout::make_output_section): Rcognize relro sections and mark
them appropriately.
(Layout::attach_allocated_section_to_segment): Put relro sections
in a PT_GNU_RELRO segment.
(Layout::create_initial_dynamic_sections): Mark the .dynamic
section as relro.
(Layout::segment_precedes): Sort PT_GNU_RELRO segments after
PT_TLS segments.
(Layout::linkonce_mapping): Map d.rel.ro.local to
.data.rel.ro.local.
(Layout::output_section_name): Us .data.rel.ro.local for any
section which begins with that.
* layout.h (class Layout): Update add_output_section_data
declaration. Add relro_segment_ field.
* output.cc (Output_section::Output_section): Initialize is_relro_
and is_relro_local_ fields.
(Output_segment::add_output_section): Group relro sections.
(Output_segment::is_first_section_relro): New function.
(Output_segment::maximum_alignment): If there is a relro section,
align the segment to the common page size.
(Output_segment::set_section_addresses): Track whether we are
looking at relro sections. If the last section is a relro
section, align to the common page size.
(Output_segment::set_section_list_addresses): Add in_relro
parameter. Change all callers. Align to the page size when
moving from relro to non-relro section.
(Output_segment::set_offset): Align memsz of a PT_GNU_RELRO
segment.
* output.h (class Output_section): Add is_relro_ and
is_relro_local_ fields.
(Output_section::is_relro): New function.
(Output_section::set_is_relro): New function.
(Output_section::is_relro_local): New function.
(Output_section::set_is_relro_local): New function.
(class Output_segment): Update declarations.
* i386.cc (Target_i386::got_section): Mark .got section as relro.
* sparc.cc (Target_sparc::got_section): Likewise.
* x86_64.cc (Target_x86_64::got_section): Likewise.
* testsuite/relro_test_main.cc: New file.
* testsuite/relro_test.cc: New file.
* testsuite/Makefile.am (check_PROGRAMS): Add relro_test.
(relro_test_SOURCES, relro_test_DEPENDENCIES): New variables.
(relro_test_LDFLAGS, relro_test_LDADD): New variables.
(relro_test.so, relro_test_pic.o): New targets.
* testsuite/Makefile.in: Rebuild.
Diffstat (limited to 'gold/layout.h')
| -rw-r--r-- | gold/layout.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gold/layout.h b/gold/layout.h index 2a173d7..ede2604 100644 --- a/gold/layout.h +++ b/gold/layout.h @@ -158,7 +158,7 @@ class Layout // Add an Output_section_data to the layout. This is used for // special sections like the GOT section. - void + Output_section* add_output_section_data(const char* name, elfcpp::Elf_Word type, elfcpp::Elf_Xword flags, Output_section_data*); @@ -636,6 +636,8 @@ class Layout Output_section_headers* section_headers_; // A pointer to the PT_TLS segment if there is one. Output_segment* tls_segment_; + // A pointer to the PT_GNU_RELRO segment if there is one. + Output_segment* relro_segment_; // The SHT_SYMTAB output section. Output_section* symtab_section_; // The SHT_SYMTAB_SHNDX for the regular symbol table if there is one. |