diff options
| -rw-r--r-- | gold/ChangeLog | 30 | ||||
| -rw-r--r-- | gold/gold.cc | 29 | ||||
| -rw-r--r-- | gold/layout.cc | 145 | ||||
| -rw-r--r-- | gold/layout.h | 47 | ||||
| -rw-r--r-- | gold/testsuite/Makefile.am | 8 | ||||
| -rw-r--r-- | gold/testsuite/Makefile.in | 32 |
6 files changed, 194 insertions, 97 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog index 8e08d3b..92be972 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,33 @@ +2015-06-03 Cary Coutant <ccoutant@gmail.com> + + PR gold/17819 + * gold.cc (queue_final_tasks): When --build-id=tree, queue a + separate task to schedule the build id computation. + * layout.cc (Hash_task::Hash_task): Remove build_id_blocker, + add Output_file and offset. + (Hash_task::run): Get and release the input views. + (Hash_task::is_runnable): Always return NULL (always runnable). + (Layout::queue_build_id_tasks): Remove. + (Layout::write_build_id): Add array_of_hashes and size_of_hashes + parameters; use them instead of class members. + (Build_id_task_runner::run): New function. + (Close_task_runner::run): Pass array_of_hashes and size_of_hashes + to write_build_id. + * layout.h (Layout::queue_build_id_tasks): Remove. + (Layout::write_build_id): Add array_of_hashes and size_of_hashes + parameters. + (Layout::array_of_hashes_): Remove. + (Layout::size_of_array_of_hashes_): Remove. + (Layout::input_view_): Remove. + (Build_id_task_runner): New class. + (Close_task_runner::Close_task_runner): Add array_of_hashes and + size_of_hashes parameters. + (Close_task_runner::array_of_hashes_): New data member. + (Close_task_runner::size_of_hashes_): New data member. + * testsuite/Makefile.am + (flagstest_compress_debug_sections_and_build_id_tree): New test. + * testsuite/Makefile.in: Regenerate. + 2015-06-01 Rafael Ávila de Espíndola <rafael.espindola@gmail.com> * merge.cc (get_input_merge_map): Update for data structure change. diff --git a/gold/gold.cc b/gold/gold.cc index 39843c2..18b06b9 100644 --- a/gold/gold.cc +++ b/gold/gold.cc @@ -880,14 +880,27 @@ queue_final_tasks(const General_options& options, } // Create tasks for tree-style build ID computation, if necessary. - final_blocker = layout->queue_build_id_tasks(workqueue, final_blocker, of); - - // Queue a task to close the output file. This will be blocked by - // FINAL_BLOCKER. - workqueue->queue(new Task_function(new Close_task_runner(&options, layout, - of), - final_blocker, - "Task_function Close_task_runner")); + if (strcmp(options.build_id(), "tree") == 0) + { + // Queue a task to compute the build id. This will be blocked by + // FINAL_BLOCKER, and will in turn schedule the task to close + // the output file. + workqueue->queue(new Task_function(new Build_id_task_runner(&options, + layout, + of), + final_blocker, + "Task_function Build_id_task_runner")); + } + else + { + // Queue a task to close the output file. This will be blocked by + // FINAL_BLOCKER. + workqueue->queue(new Task_function(new Close_task_runner(&options, layout, + of, NULL, 0), + final_blocker, + "Task_function Close_task_runner")); + } + } } // End namespace gold. diff --git a/gold/layout.cc b/gold/layout.cc index 14bfda0..8820fe3 100644 --- a/gold/layout.cc +++ b/gold/layout.cc @@ -236,27 +236,31 @@ Free_list::print_stats() } // A Hash_task computes the MD5 checksum of an array of char. -// It has a blocker on either side (i.e., the task cannot run until -// the first is unblocked, and it unblocks the second after running). class Hash_task : public Task { public: - Hash_task(const unsigned char* src, + Hash_task(Output_file* of, + size_t offset, size_t size, unsigned char* dst, - Task_token* build_id_blocker, Task_token* final_blocker) - : src_(src), size_(size), dst_(dst), build_id_blocker_(build_id_blocker), + : of_(of), offset_(offset), size_(size), dst_(dst), final_blocker_(final_blocker) { } void run(Workqueue*) - { md5_buffer(reinterpret_cast<const char*>(src_), size_, dst_); } + { + const unsigned char* iv = + this->of_->get_input_view(this->offset_, this->size_); + md5_buffer(reinterpret_cast<const char*>(iv), this->size_, this->dst_); + this->of_->free_input_view(this->offset_, this->size_, iv); + } Task_token* - is_runnable(); + is_runnable() + { return NULL; } // Unblock FINAL_BLOCKER_ when done. void @@ -268,21 +272,13 @@ class Hash_task : public Task { return "Hash_task"; } private: - const unsigned char* const src_; + Output_file* of_; + const size_t offset_; const size_t size_; unsigned char* const dst_; - Task_token* const build_id_blocker_; Task_token* const final_blocker_; }; -Task_token* -Hash_task::is_runnable() -{ - if (this->build_id_blocker_->is_blocked()) - return this->build_id_blocker_; - return NULL; -} - // Layout::Relaxation_debug_check methods. // Check that sections and special data are in reset states. @@ -449,9 +445,6 @@ Layout::Layout(int number_of_input_files, Script_options* script_options) eh_frame_hdr_section_(NULL), gdb_index_data_(NULL), build_id_note_(NULL), - array_of_hashes_(NULL), - size_of_array_of_hashes_(0), - input_view_(NULL), debug_abbrev_(NULL), debug_info_(NULL), group_signatures_(), @@ -5388,56 +5381,13 @@ Layout::write_sections_after_input_sections(Output_file* of) this->section_headers_->write(of); } -// Build IDs can be computed as a "flat" sha1 or md5 of a string of bytes, -// or as a "tree" where each chunk of the string is hashed and then those -// hashes are put into a (much smaller) string which is hashed with sha1. -// We compute a checksum over the entire file because that is simplest. - -Task_token* -Layout::queue_build_id_tasks(Workqueue* workqueue, Task_token* build_id_blocker, - Output_file* of) -{ - const size_t filesize = (this->output_file_size() <= 0 ? 0 - : static_cast<size_t>(this->output_file_size())); - if (this->build_id_note_ != NULL - && strcmp(parameters->options().build_id(), "tree") == 0 - && parameters->options().build_id_chunk_size_for_treehash() > 0 - && filesize > 0 - && (filesize >= - parameters->options().build_id_min_file_size_for_treehash())) - { - static const size_t MD5_OUTPUT_SIZE_IN_BYTES = 16; - const size_t chunk_size = - parameters->options().build_id_chunk_size_for_treehash(); - const size_t num_hashes = ((filesize - 1) / chunk_size) + 1; - Task_token* post_hash_tasks_blocker = new Task_token(true); - post_hash_tasks_blocker->add_blockers(num_hashes); - this->size_of_array_of_hashes_ = num_hashes * MD5_OUTPUT_SIZE_IN_BYTES; - const unsigned char* src = of->get_input_view(0, filesize); - this->input_view_ = src; - unsigned char *dst = new unsigned char[this->size_of_array_of_hashes_]; - this->array_of_hashes_ = dst; - for (size_t i = 0, src_offset = 0; i < num_hashes; - i++, dst += MD5_OUTPUT_SIZE_IN_BYTES, src_offset += chunk_size) - { - size_t size = std::min(chunk_size, filesize - src_offset); - workqueue->queue(new Hash_task(src + src_offset, - size, - dst, - build_id_blocker, - post_hash_tasks_blocker)); - } - return post_hash_tasks_blocker; - } - return build_id_blocker; -} - // If a tree-style build ID was requested, the parallel part of that computation // is already done, and the final hash-of-hashes is computed here. For other // types of build IDs, all the work is done here. void -Layout::write_build_id(Output_file* of) const +Layout::write_build_id(Output_file* of, unsigned char* array_of_hashes, + size_t size_of_hashes) const { if (this->build_id_note_ == NULL) return; @@ -5445,7 +5395,7 @@ Layout::write_build_id(Output_file* of) const unsigned char* ov = of->get_output_view(this->build_id_note_->offset(), this->build_id_note_->data_size()); - if (this->array_of_hashes_ == NULL) + if (array_of_hashes == NULL) { const size_t output_file_size = this->output_file_size(); const unsigned char* iv = of->get_input_view(0, output_file_size); @@ -5466,10 +5416,9 @@ Layout::write_build_id(Output_file* of) const { // Non-overlapping substrings of the output file have been hashed. // Compute SHA-1 hash of the hashes. - sha1_buffer(reinterpret_cast<const char*>(this->array_of_hashes_), - this->size_of_array_of_hashes_, ov); - delete[] this->array_of_hashes_; - of->free_input_view(0, this->output_file_size(), this->input_view_); + sha1_buffer(reinterpret_cast<const char*>(array_of_hashes), + size_of_hashes, ov); + delete[] array_of_hashes; } of->write_output_view(this->build_id_note_->offset(), @@ -5668,6 +5617,57 @@ Write_after_input_sections_task::run(Workqueue*) this->layout_->write_sections_after_input_sections(this->of_); } +// Build IDs can be computed as a "flat" sha1 or md5 of a string of bytes, +// or as a "tree" where each chunk of the string is hashed and then those +// hashes are put into a (much smaller) string which is hashed with sha1. +// We compute a checksum over the entire file because that is simplest. + +void +Build_id_task_runner::run(Workqueue* workqueue, const Task*) +{ + Task_token* post_hash_tasks_blocker = new Task_token(true); + const Layout* layout = this->layout_; + Output_file* of = this->of_; + const size_t filesize = (layout->output_file_size() <= 0 ? 0 + : static_cast<size_t>(layout->output_file_size())); + unsigned char* array_of_hashes = NULL; + size_t size_of_hashes = 0; + + if (strcmp(this->options_->build_id(), "tree") == 0 + && this->options_->build_id_chunk_size_for_treehash() > 0 + && filesize > 0 + && (filesize >= this->options_->build_id_min_file_size_for_treehash())) + { + static const size_t MD5_OUTPUT_SIZE_IN_BYTES = 16; + const size_t chunk_size = + this->options_->build_id_chunk_size_for_treehash(); + const size_t num_hashes = ((filesize - 1) / chunk_size) + 1; + post_hash_tasks_blocker->add_blockers(num_hashes); + size_of_hashes = num_hashes * MD5_OUTPUT_SIZE_IN_BYTES; + array_of_hashes = new unsigned char[size_of_hashes]; + unsigned char *dst = array_of_hashes; + for (size_t i = 0, src_offset = 0; i < num_hashes; + i++, dst += MD5_OUTPUT_SIZE_IN_BYTES, src_offset += chunk_size) + { + size_t size = std::min(chunk_size, filesize - src_offset); + workqueue->queue(new Hash_task(of, + src_offset, + size, + dst, + post_hash_tasks_blocker)); + } + } + + // Queue the final task to write the build id and close the output file. + workqueue->queue(new Task_function(new Close_task_runner(this->options_, + layout, + of, + array_of_hashes, + size_of_hashes), + post_hash_tasks_blocker, + "Task_function Close_task_runner")); +} + // Close_task_runner methods. // Finish up the build ID computation, if necessary, and write a binary file, @@ -5677,8 +5677,9 @@ void Close_task_runner::run(Workqueue*, const Task*) { // At this point the multi-threaded part of the build ID computation, - // if any, is done. See queue_build_id_tasks(). - this->layout_->write_build_id(this->of_); + // if any, is done. See Build_id_task_runner. + this->layout_->write_build_id(this->of_, this->array_of_hashes_, + this->size_of_hashes_); // If we've been asked to create a binary file, we do so here. if (this->options_->oformat_enum() != General_options::OBJECT_FORMAT_ELF) diff --git a/gold/layout.h b/gold/layout.h index 9039ee8..4e29ba8 100644 --- a/gold/layout.h +++ b/gold/layout.h @@ -897,16 +897,9 @@ class Layout const Output_data_reloc_generic* dyn_rel, bool add_debug, bool dynrel_includes_plt); - // If a treehash is necessary to compute the build ID, then queue - // the necessary tasks and return a blocker that will unblock when - // they finish. Otherwise return BUILD_ID_BLOCKER. - Task_token* - queue_build_id_tasks(Workqueue* workqueue, Task_token* build_id_blocker, - Output_file* of); - // Compute and write out the build ID if needed. void - write_build_id(Output_file*) const; + write_build_id(Output_file*, unsigned char*, size_t) const; // Rewrite output file in binary format. void @@ -1380,12 +1373,6 @@ class Layout Gdb_index* gdb_index_data_; // The space for the build ID checksum if there is one. Output_section_data* build_id_note_; - // Temporary storage for tree hash of build ID. - unsigned char* array_of_hashes_; - // Size of array_of_hashes_ (in bytes). - size_t size_of_array_of_hashes_; - // Input view for computing tree hash of build ID. Freed in write_build_id(). - const unsigned char* input_view_; // The output section containing dwarf abbreviations Output_reduced_debug_abbrev_section* debug_abbrev_; // The output section containing the dwarf debug info tree @@ -1602,14 +1589,40 @@ class Write_after_input_sections_task : public Task Task_token* final_blocker_; }; +// This task function handles computation of the build id. +// When using --build-id=tree, it schedules the tasks that +// compute the hashes for each chunk of the file. This task +// cannot run until we have finalized the size of the output +// file, after the completion of Write_after_input_sections_task. + +class Build_id_task_runner : public Task_function_runner +{ + public: + Build_id_task_runner(const General_options* options, const Layout* layout, + Output_file* of) + : options_(options), layout_(layout), of_(of) + { } + + // Run the operation. + void + run(Workqueue*, const Task*); + + private: + const General_options* options_; + const Layout* layout_; + Output_file* of_; +}; + // This task function handles closing the file. class Close_task_runner : public Task_function_runner { public: Close_task_runner(const General_options* options, const Layout* layout, - Output_file* of) - : options_(options), layout_(layout), of_(of) + Output_file* of, unsigned char* array_of_hashes, + size_t size_of_hashes) + : options_(options), layout_(layout), of_(of), + array_of_hashes_(array_of_hashes), size_of_hashes_(size_of_hashes) { } // Run the operation. @@ -1620,6 +1633,8 @@ class Close_task_runner : public Task_function_runner const General_options* options_; const Layout* layout_; Output_file* of_; + unsigned char* const array_of_hashes_; + const size_t size_of_hashes_; }; // A small helper function to align an address. diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am index e2390eb..fff941e 100644 --- a/gold/testsuite/Makefile.am +++ b/gold/testsuite/Makefile.am @@ -1309,6 +1309,14 @@ flagstest_compress_debug_sections: flagstest_debug.o gcctestdir/ld $(CXXLINK) -Bgcctestdir/ -o $@ $< -Wl,--compress-debug-sections=zlib test -s $@ +# Test --compress-debug-sections with --build-id=tree. +check_PROGRAMS += flagstest_compress_debug_sections_and_build_id_tree +flagstest_compress_debug_sections_and_build_id_tree: flagstest_debug.o gcctestdir/ld + $(CXXLINK) -Bgcctestdir/ -o $@ $< -Wl,--compress-debug-sections=zlib \ + -Wl,--build-id=tree \ + -Wl,--build-id-chunk-size-for-treehash=4096 \ + -Wl,--build-id-min-file-size-for-treehash=0 + test -s $@ # The specialfile output has a tricky case when we also compress debug # sections, because it requires output-file resizing. diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in index fe8da13..ad29bd1 100644 --- a/gold/testsuite/Makefile.in +++ b/gold/testsuite/Makefile.in @@ -228,6 +228,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \ # Test --compress-debug-sections. FIXME: check we actually compress. +# Test --compress-debug-sections with --build-id=tree. + # The specialfile output has a tricky case when we also compress debug # sections, because it requires output-file resizing. @@ -243,6 +245,7 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ initpri2 initpri3a \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_specialfile \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_compress_debug_sections \ +@GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_compress_debug_sections_and_build_id_tree \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_specialfile_and_compress_debug_sections \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_ttext_1 ver_test \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_2 ver_test_6 ver_test_8 \ @@ -896,6 +899,7 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS) @GCC_TRUE@@NATIVE_LINKER_TRUE@ initpri3a$(EXEEXT) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_specialfile$(EXEEXT) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_compress_debug_sections$(EXEEXT) \ +@GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ flagstest_o_ttext_1$(EXEEXT) \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test$(EXEEXT) \ @@ -1175,6 +1179,15 @@ flagstest_compress_debug_sections_DEPENDENCIES = libgoldtest.a \ ../libgold.a ../../libiberty/libiberty.a $(am__DEPENDENCIES_1) \ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ $(am__DEPENDENCIES_1) +flagstest_compress_debug_sections_and_build_id_tree_SOURCES = \ + flagstest_compress_debug_sections_and_build_id_tree.c +flagstest_compress_debug_sections_and_build_id_tree_OBJECTS = \ + flagstest_compress_debug_sections_and_build_id_tree.$(OBJEXT) +flagstest_compress_debug_sections_and_build_id_tree_LDADD = $(LDADD) +flagstest_compress_debug_sections_and_build_id_tree_DEPENDENCIES = \ + libgoldtest.a ../libgold.a ../../libiberty/libiberty.a \ + $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \ + $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) flagstest_o_specialfile_SOURCES = flagstest_o_specialfile.c flagstest_o_specialfile_OBJECTS = flagstest_o_specialfile.$(OBJEXT) flagstest_o_specialfile_LDADD = $(LDADD) @@ -2011,7 +2024,9 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c basic_pie_test.c \ $(exception_static_test_SOURCES) $(exception_test_SOURCES) \ $(exception_x86_64_bnd_test_SOURCES) \ $(exclude_libs_test_SOURCES) \ - flagstest_compress_debug_sections.c flagstest_o_specialfile.c \ + flagstest_compress_debug_sections.c \ + flagstest_compress_debug_sections_and_build_id_tree.c \ + flagstest_o_specialfile.c \ flagstest_o_specialfile_and_compress_debug_sections.c \ flagstest_o_ttext_1.c icf_virtual_function_folding_test.c \ $(ifuncmain1_SOURCES) ifuncmain1pic.c ifuncmain1picstatic.c \ @@ -3049,6 +3064,12 @@ exclude_libs_test$(EXEEXT): $(exclude_libs_test_OBJECTS) $(exclude_libs_test_DEP @NATIVE_LINKER_FALSE@flagstest_compress_debug_sections$(EXEEXT): $(flagstest_compress_debug_sections_OBJECTS) $(flagstest_compress_debug_sections_DEPENDENCIES) @NATIVE_LINKER_FALSE@ @rm -f flagstest_compress_debug_sections$(EXEEXT) @NATIVE_LINKER_FALSE@ $(LINK) $(flagstest_compress_debug_sections_OBJECTS) $(flagstest_compress_debug_sections_LDADD) $(LIBS) +@GCC_FALSE@flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT): $(flagstest_compress_debug_sections_and_build_id_tree_OBJECTS) $(flagstest_compress_debug_sections_and_build_id_tree_DEPENDENCIES) +@GCC_FALSE@ @rm -f flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT) +@GCC_FALSE@ $(LINK) $(flagstest_compress_debug_sections_and_build_id_tree_OBJECTS) $(flagstest_compress_debug_sections_and_build_id_tree_LDADD) $(LIBS) +@NATIVE_LINKER_FALSE@flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT): $(flagstest_compress_debug_sections_and_build_id_tree_OBJECTS) $(flagstest_compress_debug_sections_and_build_id_tree_DEPENDENCIES) +@NATIVE_LINKER_FALSE@ @rm -f flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT) +@NATIVE_LINKER_FALSE@ $(LINK) $(flagstest_compress_debug_sections_and_build_id_tree_OBJECTS) $(flagstest_compress_debug_sections_and_build_id_tree_LDADD) $(LIBS) @GCC_FALSE@flagstest_o_specialfile$(EXEEXT): $(flagstest_o_specialfile_OBJECTS) $(flagstest_o_specialfile_DEPENDENCIES) @GCC_FALSE@ @rm -f flagstest_o_specialfile$(EXEEXT) @GCC_FALSE@ $(LINK) $(flagstest_o_specialfile_OBJECTS) $(flagstest_o_specialfile_LDADD) $(LIBS) @@ -3787,6 +3808,7 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exception_test_main.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exclude_libs_test.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_compress_debug_sections.Po@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_compress_debug_sections_and_build_id_tree.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_specialfile.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_specialfile_and_compress_debug_sections.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flagstest_o_ttext_1.Po@am__quote@ @@ -4548,6 +4570,8 @@ flagstest_o_specialfile.log: flagstest_o_specialfile$(EXEEXT) @p='flagstest_o_specialfile$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) flagstest_compress_debug_sections.log: flagstest_compress_debug_sections$(EXEEXT) @p='flagstest_compress_debug_sections$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) +flagstest_compress_debug_sections_and_build_id_tree.log: flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT) + @p='flagstest_compress_debug_sections_and_build_id_tree$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) flagstest_o_specialfile_and_compress_debug_sections.log: flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT) @p='flagstest_o_specialfile_and_compress_debug_sections$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post) flagstest_o_ttext_1.log: flagstest_o_ttext_1$(EXEEXT) @@ -5441,6 +5465,12 @@ uninstall-am: @GCC_TRUE@@NATIVE_LINKER_TRUE@flagstest_compress_debug_sections: flagstest_debug.o gcctestdir/ld @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -o $@ $< -Wl,--compress-debug-sections=zlib @GCC_TRUE@@NATIVE_LINKER_TRUE@ test -s $@ +@GCC_TRUE@@NATIVE_LINKER_TRUE@flagstest_compress_debug_sections_and_build_id_tree: flagstest_debug.o gcctestdir/ld +@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -o $@ $< -Wl,--compress-debug-sections=zlib \ +@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,--build-id=tree \ +@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,--build-id-chunk-size-for-treehash=4096 \ +@GCC_TRUE@@NATIVE_LINKER_TRUE@ -Wl,--build-id-min-file-size-for-treehash=0 +@GCC_TRUE@@NATIVE_LINKER_TRUE@ test -s $@ @GCC_TRUE@@NATIVE_LINKER_TRUE@flagstest_o_specialfile_and_compress_debug_sections: flagstest_debug.o \ @GCC_TRUE@@NATIVE_LINKER_TRUE@ gcctestdir/ld @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -o /dev/stdout $< -Wl,--compress-debug-sections=zlib 2>&1 | cat > $@ |