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dump_syms: add a -v flag

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dump_syms generates a lot of warnings.
This CL puts logging behind a command line flag

URL=https://android-review.googlesource.com/181558
BUG=b:25460551
BUG=google-breakpad:441
R=mark@chromium.org

Review URL: https://codereview.chromium.org/1437763002 .
This commit is contained in:
Mike Frysinger 2015-11-11 13:52:03 -05:00
parent f217ae431f
commit dc16e41747
1 changed files with 16 additions and 1 deletions
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17
src/tools/linux/dump_syms/dump_syms.cc
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@ -27,7 +27,9 @@
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <paths.h>
#include <stdio.h>
#include <unistd.h>
#include <cstring>
#include <iostream>
@ -44,6 +46,7 @@ int usage(const char* self) {
fprintf(stderr, "Options:\n");
fprintf(stderr, " -c Do not generate CFI section\n");
fprintf(stderr, " -r Do not handle inter-compilation unit references\n");
fprintf(stderr, " -v Print all warnings to stderr\n");
return 1;
}
@ -53,6 +56,7 @@ int main(int argc, char **argv) {
bool cfi = true;
bool handle_inter_cu_refs = true;
bool log_to_stderr = false;
int arg_index = 1;
while (arg_index < argc && strlen(argv[arg_index]) > 0 &&
argv[arg_index][0] == '-') {
@ -60,6 +64,8 @@ int main(int argc, char **argv) {
cfi = false;
} else if (strcmp("-r", argv[arg_index]) == 0) {
handle_inter_cu_refs = false;
} else if (strcmp("-v", argv[arg_index]) == 0) {
log_to_stderr = true;
} else {
return usage(argv[0]);
}
@ -68,6 +74,15 @@ int main(int argc, char **argv) {
if (arg_index == argc)
return usage(argv[0]);
// Save stderr so it can be used below.
FILE* saved_stderr = fdopen(dup(fileno(stderr)), "w");
if (!log_to_stderr) {
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.
}
}
const char* binary;
std::vector<string> debug_dirs;
binary = argv[arg_index];
@ -80,7 +95,7 @@ int main(int argc, char **argv) {
SymbolData symbol_data = cfi ? ALL_SYMBOL_DATA : NO_CFI;
google_breakpad::DumpOptions options(symbol_data, handle_inter_cu_refs);
if (!WriteSymbolFile(binary, debug_dirs, options, std::cout)) {
fprintf(stderr, "Failed to write symbol file.\n");
fprintf(saved_stderr, "Failed to write symbol file.\n");
return 1;
}