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PR 22843: ld, gold: Add --dependency-file option.

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gold/
	* options.h (class General_options): Add --dependency-file option.
	* fileread.cc (File_read::files_read): New static variable.
	(File_read::open): Add the file to the files_read list.
	(File_read::record_file_read): New static member function.
	(File_read::write_dependency_file): New static member function.
	* fileread.h (class File_read): Declare them.
	* layout.cc (Layout::read_layout_from_file): Call record_file_read.
	(Close_task_runner::run): Call write_dependency_file if
	--dependency-file was passed.

ld/
	* NEWS: Note --dependency-file.
	* ld.texi (Options): Document --dependency-file.
	* ldlex.h (enum option_values): Add OPTION_DEPENDENCY_FILE.
	* ld.h (ld_config_type): New member dependency_file.
	* lexsup.c (ld_options, parse_args): Parse --dependency-file.
	* ldmain.c (struct dependency_file): New type.
	(dependency_files, dependency_files_tail): New static variables.
	(track_dependency_files): New function.
	(write_dependency_file): New function.
	(main): Call it when --dependency-file was passed.
	* ldfile.c (ldfile_try_open_bfd): Call track_dependency_files.
	(ldfile_open_command_file_1): Likewise.
	* ldelf.c (ldelf_try_needed): Likewise.
	* pe-dll.c (pe_implied_import_dll): Likewise.
This commit is contained in:
Roland McGrath
2020-06-23 12:01:24 -07:00
parent 236ef0346d
commit f37b21b481
16 changed files with 230 additions and 60 deletions
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14
gold/options.h
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@@ -472,7 +472,7 @@ struct Struct_special : public Struct_var
options::String_set::const_iterator \
varname__##_end() const \
{ return this->varname__##_.value.end(); } \
\
\
options::String_set::size_type \
varname__##_size() const \
{ return this->varname__##_.value.size(); } \
@@ -800,6 +800,10 @@ class General_options
N_("Do not demangle C++ symbols in log messages"),
NULL);
DEFINE_string(dependency_file, options::TWO_DASHES, '\0', NULL,
N_("Write a dependency file listing all files read"),
N_("FILE"));
DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false,
N_("Look for violations of the C++ One Definition Rule"),
N_("Do not look for violations of the C++ One Definition Rule"));
@@ -1501,10 +1505,10 @@ class General_options
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"});
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"));