9c1eeaca80
Summary:
Changes:
* Add initial msan stub support.
* Handle NetBSD specific pthread_setname_np(3).
* NetBSD supports __attribute__((tls_model("initial-exec"))),
define it in SANITIZER_TLS_INITIAL_EXEC_ATTRIBUTE.
* Add ReExec() specific bits for NetBSD.
* Simplify code and add syscall64 and syscall_ptr for !NetBSD.
* Correct bunch of syscall wrappers for NetBSD.
* Disable test/tsan/map32bit on NetBSD as not applicable.
* Port test/tsan/strerror_r to a POSIX-compliant OSes.
* Disable __libc_stack_end on NetBSD.
* Disable ReadNullSepFileToArray() on NetBSD.
* Define struct_ElfW_Phdr_sz, detected missing symbol by msan.
* Change type of __sanitizer_FILE from void to char. This helps
to reuse this type as an array. Long term it will be properly
implemented along with SANITIZER_HAS_STRUCT_FILE setting to 1.
* Add initial NetBSD support in lib/tsan/go/buildgo.sh.
* Correct referencing stdout and stderr in tsan_interceptors.cc
on NetBSD.
* Document NetBSD x86_64 specific virtual memory layout in
tsan_platform.h.
* Port tests/rtl/tsan_test_util_posix.cc to NetBSD.
* Enable NetBSD tests in test/msan/lit.cfg.
* Enable NetBSD tests in test/tsan/lit.cfg.
Sponsored by <The NetBSD Foundation>
Reviewers: joerg, vitalybuka, eugenis, kcc, dvyukov
Reviewed By: dvyukov
Subscribers: #sanitizers, llvm-commits, kubamracek
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D39124
llvm-svn: 316591
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
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#include "test.h"
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#include <stdint.h>
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#include <errno.h>
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#include <sys/mman.h>
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// Test for issue:
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// https://github.com/google/sanitizers/issues/412
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// MAP_32BIT flag for mmap is supported only for x86_64.
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// XFAIL: mips
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// XFAIL: aarch64
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// XFAIL: powerpc64
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// MAP_32BIT doesn't exist on OS X and NetBSD.
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// UNSUPPORTED: darwin,netbsd
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void *Thread(void *ptr) {
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*(int*)ptr = 42;
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barrier_wait(&barrier);
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return 0;
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}
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int main() {
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barrier_init(&barrier, 2);
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void *ptr = mmap(0, 128 << 10, PROT_READ|PROT_WRITE,
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MAP_32BIT|MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
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fprintf(stderr, "ptr=%p\n", ptr);
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if (ptr == MAP_FAILED) {
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fprintf(stderr, "mmap failed: %d\n", errno);
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return 1;
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}
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if ((uintptr_t)ptr >= (1ull << 32)) {
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fprintf(stderr, "ptr is too high\n");
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return 1;
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}
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pthread_t t;
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pthread_create(&t, 0, Thread, ptr);
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barrier_wait(&barrier);
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*(int*)ptr = 42;
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pthread_join(t, 0);
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munmap(ptr, 128 << 10);
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fprintf(stderr, "DONE\n");
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: DONE
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