diff options
Diffstat (limited to 'test/tsan/debugging.cpp')
-rw-r--r-- | test/tsan/debugging.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/test/tsan/debugging.cpp b/test/tsan/debugging.cpp new file mode 100644 index 000000000..d9c7c6581 --- /dev/null +++ b/test/tsan/debugging.cpp @@ -0,0 +1,109 @@ +// RUN: %clangxx_tsan -O1 %s -o %t +// RUN: %deflake %run %t 2>&1 | FileCheck %s + +#include <pthread.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "test.h" + +extern "C" { +void __tsan_on_report(void *report); +void *__tsan_get_current_report(); +int __tsan_get_report_data(void *report, const char **description, int *count, + int *stack_count, int *mop_count, int *loc_count, + int *mutex_count, int *thread_count, + int *unique_tid_count, void **sleep_trace, + unsigned long trace_size); +int __tsan_get_report_mop(void *report, unsigned long idx, int *tid, + void **addr, int *size, int *write, int *atomic, + void **trace, unsigned long trace_size); +int __tsan_get_report_thread(void *report, unsigned long idx, int *tid, + uint64_t *os_id, int *running, + const char **name, int *parent_tid, void **trace, + unsigned long trace_size); +} + +long my_global; + +void *Thread(void *a) { + barrier_wait(&barrier); + my_global = 42; + return NULL; +} + +int main() { + barrier_init(&barrier, 2); + fprintf(stderr, "&my_global = %p\n", &my_global); + // CHECK: &my_global = [[GLOBAL:0x[0-9a-f]+]] + pthread_t t; + pthread_create(&t, 0, Thread, 0); + my_global = 41; + barrier_wait(&barrier); + pthread_join(t, 0); + fprintf(stderr, "Done.\n"); +} + +void __tsan_on_report(void *report) { + fprintf(stderr, "__tsan_on_report(%p)\n", report); + fprintf(stderr, "__tsan_get_current_report() = %p\n", + __tsan_get_current_report()); + // CHECK: __tsan_on_report([[REPORT:0x[0-9a-f]+]]) + // CHECK: __tsan_get_current_report() = [[REPORT]] + + const char *description; + int count; + int stack_count, mop_count, loc_count, mutex_count, thread_count, + unique_tid_count; + void *sleep_trace[16] = {0}; + __tsan_get_report_data(report, &description, &count, &stack_count, &mop_count, + &loc_count, &mutex_count, &thread_count, + &unique_tid_count, sleep_trace, 16); + fprintf(stderr, "report type = '%s', count = %d\n", description, count); + // CHECK: report type = 'data-race', count = 0 + + fprintf(stderr, "mop_count = %d\n", mop_count); + // CHECK: mop_count = 2 + + int tid; + void *addr; + int size, write, atomic; + void *trace[16] = {0}; + + __tsan_get_report_mop(report, 0, &tid, &addr, &size, &write, &atomic, trace, + 16); + fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", + tid, addr, size, write, atomic); + // CHECK: tid = 1, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 + fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); + // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} + + __tsan_get_report_mop(report, 1, &tid, &addr, &size, &write, &atomic, trace, + 16); + fprintf(stderr, "tid = %d, addr = %p, size = %d, write = %d, atomic = %d\n", + tid, addr, size, write, atomic); + // CHECK: tid = 0, addr = [[GLOBAL]], size = 8, write = 1, atomic = 0 + fprintf(stderr, "trace[0] = %p, trace[1] = %p\n", trace[0], trace[1]); + // CHECK: trace[0] = 0x{{[0-9a-f]+}}, trace[1] = {{0x0|\(nil\)|\(null\)}} + + fprintf(stderr, "thread_count = %d\n", thread_count); + // CHECK: thread_count = 2 + + uint64_t os_id; + int running; + const char *name; + int parent_tid; + + __tsan_get_report_thread(report, 0, &tid, &os_id, &running, &name, &parent_tid, trace, 16); + fprintf(stderr, "tid = %d\n", tid); + // CHECK: tid = 1 + + __tsan_get_report_thread(report, 1, &tid, &os_id, &running, &name, &parent_tid, trace, 16); + fprintf(stderr, "tid = %d\n", tid); + // CHECK: tid = 0 +} + +// CHECK: Done. +// CHECK: ThreadSanitizer: reported 1 warnings |