91244924cb
Summary: This commit adds symbolize_vs_style=false to every instance of ASAN_OPTIONS in the asan tests and sets ASAN_OPTIONS=symbolize_vs_style=false in lit, for tests which don't set it. This way we don't need to make the tests be able to deal with both symbolize styles. This is the first patch in the series. I will eventually submit for the other sanitizers too. We need this change (or another way to deal with the different outputs) in order to be able to default to symbolize_vs_style=true on some platforms. Adding to this change, I'm also adding "env " before any command line which sets environment variables. That way the test works on other host shells, like we have if the host is running Windows. Reviewers: samsonov, kcc, rnk Subscribers: tberghammer, llvm-commits Differential Revision: http://reviews.llvm.org/D10294 llvm-svn: 239754
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
// Test ASan detection of stack-overflow condition.
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// RUN: %clangxx_asan -O0 %s -DSMALL_FRAME -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -DSMALL_FRAME -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O0 %s -DSAVE_ALL_THE_REGISTERS -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -DSAVE_ALL_THE_REGISTERS -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O0 %s -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O0 %s -DTHREAD -DSMALL_FRAME -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -DTHREAD -DSMALL_FRAME -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O0 %s -DTHREAD -DSAVE_ALL_THE_REGISTERS -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -DTHREAD -DSAVE_ALL_THE_REGISTERS -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O0 %s -DTHREAD -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: %clangxx_asan -O3 %s -DTHREAD -pthread -o %t && env ASAN_OPTIONS=$ASAN_OPTIONS:use_sigaltstack=1 not %run %t 2>&1 | FileCheck %s
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// RUN: not %run %t 2>&1 | FileCheck %s
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// REQUIRES: stable-runtime
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#include <assert.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sanitizer/asan_interface.h>
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const int BS = 1024;
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volatile char x;
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volatile int y = 1;
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volatile int z0, z1, z2, z3, z4, z5, z6, z7, z8, z9, z10, z11, z12, z13;
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void recursive_func(char *p) {
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#if defined(SMALL_FRAME)
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char *buf = 0;
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#elif defined(SAVE_ALL_THE_REGISTERS)
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char *buf = 0;
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int t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13;
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t0 = z0;
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t1 = z1;
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t2 = z2;
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t3 = z3;
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t4 = z4;
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t5 = z5;
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t6 = z6;
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t7 = z7;
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t8 = z8;
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t9 = z9;
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t10 = z10;
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t11 = z11;
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t12 = z12;
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t13 = z13;
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z0 = t0;
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z1 = t1;
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z2 = t2;
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z3 = t3;
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z4 = t4;
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z5 = t5;
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z6 = t6;
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z7 = t7;
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z8 = t8;
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z9 = t9;
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z10 = t10;
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z11 = t11;
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z12 = t12;
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z13 = t13;
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#else
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char buf[BS];
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// Check that the stack grows in the righ direction, unless we use fake stack.
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if (p && !__asan_get_current_fake_stack())
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assert(p - buf >= BS);
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buf[rand() % BS] = 1;
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buf[rand() % BS] = 2;
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x = buf[rand() % BS];
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#endif
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if (y)
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recursive_func(buf);
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x = 1; // prevent tail call optimization
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// CHECK: {{stack-overflow on address 0x.* \(pc 0x.* bp 0x.* sp 0x.* T.*\)}}
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// If stack overflow happens during function prologue, stack trace may be
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// corrupted. Unwind tables are not always 100% exact there.
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// For this reason, we don't do any further checks.
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}
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void *ThreadFn(void* unused) {
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recursive_func(0);
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return 0;
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}
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void LimitStackAndReexec(int argc, char **argv) {
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struct rlimit rlim;
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int res = getrlimit(RLIMIT_STACK, &rlim);
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assert(res == 0);
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if (rlim.rlim_cur == RLIM_INFINITY) {
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rlim.rlim_cur = 256 * 1024;
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res = setrlimit(RLIMIT_STACK, &rlim);
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assert(res == 0);
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execv(argv[0], argv);
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assert(0 && "unreachable");
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}
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}
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int main(int argc, char **argv) {
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LimitStackAndReexec(argc, argv);
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#ifdef THREAD
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pthread_t t;
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pthread_create(&t, 0, ThreadFn, 0);
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pthread_join(t, 0);
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#else
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recursive_func(0);
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#endif
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return 0;
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}
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