Linux symbol file dumping

test/AMBuilder

@@ -11,23 +11,48 @@ def BuildEverything():
 
 	compiler = SM.DefaultCompiler()
 
-	compiler['CXXINCLUDES'].append(os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src'))
-
 	if AMBuild.target['platform'] in ['linux']:
+		compiler['POSTLINKFLAGS'].append('-lm')
 		compiler['POSTLINKFLAGS'].append('-lstdc++')
 		compiler['POSTLINKFLAGS'].append('-pthread')
+
+		compiler['CDEFINES'].append('HAVE_CONFIG_H')
+		compiler['CXXINCLUDES'].append(os.path.join(AMBuild.sourceFolder, 'breakpad', 'build', 'src'))
 	elif compiler.cc.name == 'msvc':
 		compiler['POSTLINKFLAGS'].remove('/SUBSYSTEM:WINDOWS')
 		compiler['POSTLINKFLAGS'].append('/SUBSYSTEM:CONSOLE')
 
+	compiler['CXXINCLUDES'].append(os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src'))
+
 	name = 'test-crash-dump-generation'
 	extension = AMBuild.AddJob(name)
 	binary = Cpp.ExecutableBuilder(name, AMBuild, extension, compiler)
 
-	binary.AddSourceFiles('test', [
+        sourceFiles = [
             'test.cpp',
+        ]
+
+        if AMBuild.target['platform'] in ['linux']:
+            sourceFiles.extend([
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf_cfi_to_module.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf_cu_to_module.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf_line_to_module.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'language.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'module.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'path_helper.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'stabs_reader.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'stabs_to_module.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf', 'bytereader.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf', 'dwarf2diehandler.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf', 'dwarf2reader.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'dwarf', 'elf_reader.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'linux', 'crc32.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'linux', 'dump_symbols.cc'),
+                os.path.join(AMBuild.sourceFolder, 'breakpad', 'src', 'src', 'common', 'linux', 'elf_symbols_to_module.cc'),
             ])
 
+	binary.AddSourceFiles('test', sourceFiles);
+
 	if AMBuild.target['platform'] in ['linux']:
 		libs = [
 			('libbreakpad_client.a', os.path.join('breakpad', 'build', 'src', 'client', 'linux', 'libbreakpad_client.a')),

test/test.cpp

@@ -2,16 +2,22 @@
 #include "client/linux/handler/exception_handler.h"
 #include "common/linux/linux_libc_support.h"
 #include "third_party/lss/linux_syscall_support.h"
+#include "common/linux/dump_symbols.h"
+#include "common/path_helper.h"
+
+#include <sstream>
 
 #include <signal.h>
 #include <dirent.h>
 #include <unistd.h>
+#include <paths.h>
 
 #define my_jmp_buf sigjmp_buf
 #define my_setjmp(x) sigsetjmp(x, 0)
 #define my_longjmp siglongjmp
 
 using google_breakpad::MinidumpDescriptor;
+using google_breakpad::WriteSymbolFile;
 
 #elif defined _WINDOWS
 #define _STDINT // ~.~
@@ -174,6 +180,54 @@ int main(int argc, char *argv[])
 		}
 
 		printf("\n");
+
+#if defined _LINUX
+		for (unsigned int moduleIndex = 0; moduleIndex < moduleCount; ++moduleIndex) {
+			auto module = processState.modules()->GetModuleAtIndex(moduleIndex);
+
+			auto debugFile = module->debug_file();
+			if (debugFile[0] != '/') {
+				continue;
+			}
+
+			printf("%s\n", debugFile.c_str());
+
+			auto debugFileDir = google_breakpad::DirName(debugFile);
+			std::vector<string> debug_dirs{
+				debugFileDir,
+			};
+
+			FILE *saved_stderr = fdopen(dup(fileno(stderr)), "w");
+			if (freopen(_PATH_DEVNULL, "w", stderr)) {
+				// If it fails, not a lot we can (or should) do.
+				// Add this brace section to silence gcc warnings.
+			}
+
+			std::ostringstream outputStream;
+			google_breakpad::DumpOptions options(ALL_SYMBOL_DATA, true);
+			if (!WriteSymbolFile(debugFile, debug_dirs, options, outputStream)) {
+				outputStream.str("");
+				outputStream.clear();
+
+				// Try again without debug dirs.
+				if (!WriteSymbolFile(debugFile, {}, options, outputStream)) {
+					// TODO: Something.
+				}
+			}
+
+			fflush(stderr);
+			dup2(fileno(saved_stderr), fileno(stderr));
+			fclose(saved_stderr);
+
+
+			// WriteSymbolFileHeaderOnly would do this for us, but this is just for testing.
+			auto output = outputStream.str();
+			output = output.substr(0, output.find("\n"));
+			fprintf(stdout, "%s\n", output.c_str());
+
+			// break;
+		}
+#endif
 	}
 
 	if (generateCrash) {