50 lines
2.2 KiB
C
50 lines
2.2 KiB
C
// RUN: %clang_hwasan %s -o %t
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// RUN: %run %t 0
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// RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s
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// RUN: not %env_hwasan_opts=symbolize=0 %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RNOSYM %s
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// RUN: not %run %t -1 2>&1 | FileCheck --check-prefixes=CHECK,LSYM %s
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// RUN: not %env_hwasan_opts=symbolize=0 %run %t -1 2>&1 | FileCheck --check-prefixes=CHECK,LNOSYM %s
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// Test with and without optimizations, with and without PIC, since different
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// backend passes run depending on these flags.
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// RUN: %clang_hwasan -fno-pic %s -o %t
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// RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s
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// RUN: %clang_hwasan -fno-pic -O2 %s -o %t
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// RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s
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// RUN: %clang_hwasan -O2 %s -o %t
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// RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s
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// RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t && %run %t 0
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// RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t && %run %t 1
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// RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -fno-pic && %run %t 1
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// RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -O2 && %run %t 1
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// RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -fno-pic -O2 && %run %t 1
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// REQUIRES: pointer-tagging
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#include <stdlib.h>
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// GlobalOpt may replace the current GV with a new boolean-typed GV. Previously,
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// this resulted in the "nosanitize" getting dropped because while the data/code
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// references to the GV were updated, the old metadata references weren't.
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int* f() {
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#ifdef USE_NOSANITIZE
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__attribute__((no_sanitize("hwaddress"))) static int x = 1;
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#else // USE_NOSANITIZE
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static int x = 1;
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#endif // USE_NOSANITIZE
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if (x == 1) x = 0;
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return &x;
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}
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int main(int argc, char **argv) {
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// CHECK: Cause: global-overflow
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// RSYM: is located 0 bytes after a 4-byte global variable f.x {{.*}} in {{.*}}global-with-reduction.c.tmp
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// RNOSYM: is located after a 4-byte global variable in
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// RNOSYM-NEXT: #0 0x{{.*}} ({{.*}}global-with-reduction.c.tmp+{{.*}})
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// LSYM: is located 4 bytes before a 4-byte global variable f.x {{.*}} in {{.*}}global-with-reduction.c.tmp
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// LNOSYM: is located before a 4-byte global variable in
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// LNOSYM-NEXT: #0 0x{{.*}} ({{.*}}global-with-reduction.c.tmp+{{.*}})
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// CHECK-NOT: can not describe
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f()[atoi(argv[1])] = 1;
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}
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