From f37b21b481a7804a13c5806098c19b6119288ba4 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 23 Jun 2020 12:01:24 -0700 Subject: PR 22843: ld, gold: Add --dependency-file option. 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. --- gold/fileread.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'gold/fileread.h') diff --git a/gold/fileread.h b/gold/fileread.h index cf92367..2120135 100644 --- a/gold/fileread.h +++ b/gold/fileread.h @@ -207,6 +207,15 @@ class File_read static void print_stats(); + // Write the dependency file listing all files read. + static void + write_dependency_file(const char* dependency_file_name, + const char* output_file_name); + + // Record that a file was read. File_read::open does this. + static void + record_file_read(const std::string& name); + // Return the open file descriptor (for plugins). int descriptor() @@ -214,7 +223,7 @@ class File_read this->reopen_descriptor(); return this->descriptor_; } - + // Return the file last modification time. Calls gold_fatal if the stat // system call failed. Timespec @@ -247,6 +256,9 @@ class File_read // --stats. static unsigned long long maximum_mapped_bytes; + // Set of names of all files read. + static std::vector files_read; + // A view into the file. class View { -- cgit v1.1