}
static FILE *jitdump;
+static size_t perf_marker_size;
+static void *perf_marker = MAP_FAILED;
#define JITHEADER_MAGIC 0x4A695444
#define JITHEADER_VERSION 1
{
struct jitheader header;
char jitdump_file[32];
- void *perf_marker;
if (!use_rt_clock) {
warn_report("CLOCK_MONOTONIC is not available, proceeding without jitdump");
* PERF_RECORD_MMAP or PERF_RECORD_MMAP2 event is of the form jit-%d.dump
* and will process it as a jitdump file.
*/
- perf_marker = mmap(NULL, qemu_real_host_page_size(), PROT_READ | PROT_EXEC,
+ perf_marker_size = qemu_real_host_page_size();
+ perf_marker = mmap(NULL, perf_marker_size, PROT_READ | PROT_EXEC,
MAP_PRIVATE, fileno(jitdump), 0);
if (perf_marker == MAP_FAILED) {
warn_report("Could not map %s: %s, proceeding without jitdump",
perfmap = NULL;
}
+ if (perf_marker != MAP_FAILED) {
+ munmap(perf_marker, perf_marker_size);
+ perf_marker = MAP_FAILED;
+ }
+
if (jitdump) {
fclose(jitdump);
jitdump = NULL;