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| author | Roland McGrath <mcgrathr@google.com> | 2020-06-15 11:45:02 -0700 |
|---|---|---|
| committer | Roland McGrath <mcgrathr@google.com> | 2020-06-15 11:45:02 -0700 |
| commit | cae64165f47b64898c4f1982d294862cfae89a47 (patch) | |
| tree | d51ade829ba19bebf17822647e08d49506d534b8 /gold/options.h | |
| parent | 669203174311c5be76744a879563c697cd479853 (diff) | |
| download | gdb-cae64165f47b64898c4f1982d294862cfae89a47.zip gdb-cae64165f47b64898c4f1982d294862cfae89a47.tar.gz gdb-cae64165f47b64898c4f1982d294862cfae89a47.tar.bz2 | |
gold, ld: Implement -z start-stop-visibility=... option.
gold/
Implement -z start-stop-visibility=... option.
* options.h (class General_options): Handle -z start-stop-visibility=.
(General_options::start_stop_visibility_enum): New public method.
(General_options::set_start_stop_visibility_enum): New private method.
(General_options::start_stop_visibility_enum_): New private member.
* options.cc (General_options::General_options): Add initializer.
(General_options::finalize): Set this->start_stop_visibility_enum_
from string value.
* layout.cc (Layout::define_section_symbols): Use option setting.
bfd/
* elflink.c (bfd_elf_define_start_stop): Use start_stop_visibility
field of bfd_link_info.
include/
* bfdlink.h (struct bfd_link_info): New field start_stop_visibility.
ld/
* NEWS: Mention -z start-stop-visibility=... option for ELF.
* ld.texi (Options): Document -z start-stop-visibility=... option.
* ldmain.c (main): Initialize link_info.start_stop_visibility.
* emultempl/elf.em (gld${EMULATION_NAME}_handle_option):
Parse -z start-stop-visibility=... option.
Diffstat (limited to 'gold/options.h')
| -rw-r--r-- | gold/options.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gold/options.h b/gold/options.h index b2059d9..f0e9fbd 100644 --- a/gold/options.h +++ b/gold/options.h @@ -1500,6 +1500,11 @@ class General_options N_("Don't mark variables read-only after relocation")); DEFINE_uint64(stack_size, options::DASH_Z, '\0', 0, N_("Set PT_GNU_STACK segment p_memsz to SIZE"), N_("SIZE")); + DEFINE_enum(start_stop_visibility, options::DASH_Z, '\0', "protected", + N_("ELF symbol visibility for synthesized " + "__start_* and __stop_* symbols"), + ("[default,internal,hidden,protected]"), + {"default", "internal", "hidden", "protected"}); DEFINE_bool(text, options::DASH_Z, '\0', false, N_("Do not permit relocations in read-only segments"), N_("Permit relocations in read-only segments")); @@ -1750,6 +1755,10 @@ class General_options orphan_handling_enum() const { return this->orphan_handling_enum_; } + elfcpp::STV + start_stop_visibility_enum() const + { return this->start_stop_visibility_enum_; } + private: // Don't copy this structure. General_options(const General_options&); @@ -1809,6 +1818,10 @@ class General_options set_orphan_handling_enum(Orphan_handling value) { this->orphan_handling_enum_ = value; } + void + set_start_stop_visibility_enum(elfcpp::STV value) + { this->start_stop_visibility_enum_ = value; } + // These are called by finalize() to set up the search-path correctly. void add_to_library_path_with_sysroot(const std::string& arg) @@ -1876,6 +1889,8 @@ class General_options std::vector<Position_dependent_options*> options_stack_; // Orphan handling option, decoded to an enum value. Orphan_handling orphan_handling_enum_; + // Symbol visibility for __start_* / __stop_* magic symbols. + elfcpp::STV start_stop_visibility_enum_; }; // The position-dependent options. We use this to store the state of |