Ejemplos de debug_cache_init en C++ (Cpp)

Ejemplo n.º 1

Archivo: jvmti_agent.c Proyecto: 020gzh/linux

void *jvmti_open(void)
{
	int pad_cnt;
	char dump_path[PATH_MAX];
	struct jitheader header;
	int fd;
	FILE *fp;

	/*
	 * check if clockid is supported
	 */
	if (!perf_get_timestamp())
		warnx("jvmti: kernel does not support %d clock id", perf_clk_id);

	memset(&header, 0, sizeof(header));

	debug_cache_init();

	/*
	 * jitdump file name
	 */
	snprintf(dump_path, PATH_MAX, "%s/jit-%i.dump", jit_path, getpid());

	fd = open(dump_path, O_CREAT|O_TRUNC|O_RDWR, 0666);
	if (fd == -1)
		return NULL;

	/*
	 * create perf.data maker for the jitdump file
	 */
	if (perf_open_marker_file(fd)) {
		warnx("jvmti: failed to create marker file");
		return NULL;
	}

	fp = fdopen(fd, "w+");
	if (!fp) {
		warn("jvmti: cannot create %s", dump_path);
		close(fd);
		goto error;
	}

	warnx("jvmti: jitdump in %s", dump_path);

	if (get_e_machine(&header)) {
		warn("get_e_machine failed\n");
		goto error;
	}

	header.magic      = JITHEADER_MAGIC;
	header.version    = JITHEADER_VERSION;
	header.total_size = sizeof(header);
	header.pid        = getpid();

	/* calculate amount of padding '\0' */
	pad_cnt = PADDING_8ALIGNED(header.total_size);
	header.total_size += pad_cnt;

	header.timestamp = perf_get_timestamp();

	if (!fwrite(&header, sizeof(header), 1, fp)) {
		warn("jvmti: cannot write dumpfile header");
		goto error;
	}

	/* write padding '\0' if necessary */
	if (pad_cnt && !fwrite(pad_bytes, pad_cnt, 1, fp)) {
		warn("jvmti: cannot write dumpfile header padding");
		goto error;
	}

	return fp;
error:
	fclose(fp);
	return NULL;
}

Ejemplo n.º 2

Archivo: jvmti_agent.c Proyecto: AshishNamdev/linux

void *jvmti_open(void)
{
	char dump_path[PATH_MAX];
	struct jitheader header;
	int fd;
	FILE *fp;

	init_arch_timestamp();

	/*
	 * check if clockid is supported
	 */
	if (!perf_get_timestamp()) {
		if (use_arch_timestamp)
			warnx("jvmti: arch timestamp not supported");
		else
			warnx("jvmti: kernel does not support %d clock id", perf_clk_id);
	}

	memset(&header, 0, sizeof(header));

	debug_cache_init();

	/*
	 * jitdump file name
	 */
	snprintf(dump_path, PATH_MAX, "%s/jit-%i.dump", jit_path, getpid());

	fd = open(dump_path, O_CREAT|O_TRUNC|O_RDWR, 0666);
	if (fd == -1)
		return NULL;

	/*
	 * create perf.data maker for the jitdump file
	 */
	if (perf_open_marker_file(fd)) {
		warnx("jvmti: failed to create marker file");
		return NULL;
	}

	fp = fdopen(fd, "w+");
	if (!fp) {
		warn("jvmti: cannot create %s", dump_path);
		close(fd);
		goto error;
	}

	warnx("jvmti: jitdump in %s", dump_path);

	if (get_e_machine(&header)) {
		warn("get_e_machine failed\n");
		goto error;
	}

	header.magic      = JITHEADER_MAGIC;
	header.version    = JITHEADER_VERSION;
	header.total_size = sizeof(header);
	header.pid        = getpid();

	header.timestamp = perf_get_timestamp();

	if (use_arch_timestamp)
		header.flags |= JITDUMP_FLAGS_ARCH_TIMESTAMP;

	if (!fwrite(&header, sizeof(header), 1, fp)) {
		warn("jvmti: cannot write dumpfile header");
		goto error;
	}
	return fp;
error:
	fclose(fp);
	return NULL;
}