108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
//===-- test.c ------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Sanity test for Go runtime.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <sys/mman.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
void __tsan_init(void **thr, void **proc, void (*cb)(long, void*));
|
|
void __tsan_fini();
|
|
void __tsan_map_shadow(void *addr, unsigned long size);
|
|
void __tsan_go_start(void *thr, void **chthr, void *pc);
|
|
void __tsan_go_end(void *thr);
|
|
void __tsan_proc_create(void **pproc);
|
|
void __tsan_proc_destroy(void *proc);
|
|
void __tsan_proc_wire(void *proc, void *thr);
|
|
void __tsan_proc_unwire(void *proc, void *thr);
|
|
void __tsan_read(void *thr, void *addr, void *pc);
|
|
void __tsan_write(void *thr, void *addr, void *pc);
|
|
void __tsan_func_enter(void *thr, void *pc);
|
|
void __tsan_func_exit(void *thr);
|
|
void __tsan_malloc(void *thr, void *pc, void *p, unsigned long sz);
|
|
void __tsan_free(void *p, unsigned long sz);
|
|
void __tsan_acquire(void *thr, void *addr);
|
|
void __tsan_release(void *thr, void *addr);
|
|
void __tsan_release_acquire(void *thr, void *addr);
|
|
void __tsan_release_merge(void *thr, void *addr);
|
|
|
|
void *current_proc;
|
|
|
|
void symbolize_cb(long cmd, void *ctx) {
|
|
switch (cmd) {
|
|
case 0:
|
|
if (current_proc == 0)
|
|
abort();
|
|
*(void**)ctx = current_proc;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* See lib/tsan/rtl/tsan_platform.h for details of what the memory layout
|
|
* of Go programs looks like. To prevent running over existing mappings,
|
|
* we pick an address slightly inside the Go heap region.
|
|
*/
|
|
void *go_heap = (void *)0xC011110000;
|
|
char *buf0;
|
|
|
|
void foobar() {}
|
|
void barfoo() {}
|
|
|
|
int main(void) {
|
|
void *thr0 = 0;
|
|
void *proc0 = 0;
|
|
__tsan_init(&thr0, &proc0, symbolize_cb);
|
|
current_proc = proc0;
|
|
|
|
// Allocate something resembling a heap in Go.
|
|
buf0 = mmap(go_heap, 16384, PROT_READ | PROT_WRITE,
|
|
MAP_PRIVATE | MAP_FIXED | MAP_ANON, -1, 0);
|
|
if (buf0 == MAP_FAILED) {
|
|
fprintf(stderr, "failed to allocate Go-like heap at %p; errno %d\n",
|
|
go_heap, errno);
|
|
return 1;
|
|
}
|
|
char *buf = (char*)((unsigned long)buf0 + (64<<10) - 1 & ~((64<<10) - 1));
|
|
__tsan_map_shadow(buf, 4096);
|
|
__tsan_malloc(thr0, (char*)&barfoo + 1, buf, 10);
|
|
__tsan_free(buf, 10);
|
|
__tsan_func_enter(thr0, (char*)&main + 1);
|
|
__tsan_malloc(thr0, (char*)&barfoo + 1, buf, 10);
|
|
__tsan_release(thr0, buf);
|
|
__tsan_release_acquire(thr0, buf);
|
|
__tsan_release_merge(thr0, buf);
|
|
void *thr1 = 0;
|
|
__tsan_go_start(thr0, &thr1, (char*)&barfoo + 1);
|
|
void *thr2 = 0;
|
|
__tsan_go_start(thr0, &thr2, (char*)&barfoo + 1);
|
|
__tsan_func_exit(thr0);
|
|
__tsan_func_enter(thr1, (char*)&foobar + 1);
|
|
__tsan_func_enter(thr1, (char*)&foobar + 1);
|
|
__tsan_write(thr1, buf, (char*)&barfoo + 1);
|
|
__tsan_acquire(thr1, buf);
|
|
__tsan_func_exit(thr1);
|
|
__tsan_func_exit(thr1);
|
|
__tsan_go_end(thr1);
|
|
void *proc1 = 0;
|
|
__tsan_proc_create(&proc1);
|
|
current_proc = proc1;
|
|
__tsan_func_enter(thr2, (char*)&foobar + 1);
|
|
__tsan_read(thr2, buf, (char*)&barfoo + 1);
|
|
__tsan_free(buf, 10);
|
|
__tsan_func_exit(thr2);
|
|
__tsan_go_end(thr2);
|
|
__tsan_proc_destroy(proc1);
|
|
current_proc = proc0;
|
|
__tsan_fini();
|
|
return 0;
|
|
}
|