am 457731f6: Use the timeout stack dump functions. (8d129cbf) · Commits · e / os / android_frameworks_native

cmds/dumpstate/utils.c

+13 −5

Original line number	Diff line number	Diff line
		@@ -619,20 +619,28 @@ const char *dump_traces() {
		if (lseek(fd, 0, SEEK_END) < 0) {
		fprintf(stderr, "lseek: %s\n", strerror(errno));
		} else {
		snprintf(data, sizeof(data), "[dump dalvik stack %d: %.3fs elapsed]\n",
		dprintf(fd, "[dump dalvik stack %d: %.3fs elapsed]\n",
		pid, (float)(nanotime() - start) / NANOS_PER_SEC);
		write(fd, data, strlen(data));
		}
		} else if (should_dump_native_traces(data)) {
		/* dump native process if appropriate */
		if (lseek(fd, 0, SEEK_END) < 0) {
		fprintf(stderr, "lseek: %s\n", strerror(errno));
		} else {
		static uint16_t timeout_failures = 0;
		int64_t start = nanotime();
		dump_backtrace_to_file(pid, fd);
		snprintf(data, sizeof(data), "[dump native stack %d: %.3fs elapsed]\n",

		/* If 3 backtrace dumps fail in a row, consider debuggerd dead. */
		if (timeout_failures == 3) {
		dprintf(fd, "too many stack dump failures, skipping...\n");
		} else if (dump_backtrace_to_file_timeout(pid, fd, 20) == -1) {
		dprintf(fd, "dumping failed, likely due to a timeout\n");
		timeout_failures++;
		} else {
		timeout_failures = 0;
		}
		dprintf(fd, "[dump native stack %d: %.3fs elapsed]\n",
		pid, (float)(nanotime() - start) / NANOS_PER_SEC);
		write(fd, data, strlen(data));
		}
		}
		}