| 1 | // RUN: %clang_hwasan %s -o %t |
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| 2 | // RUN: %run %t 0 |
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| 3 | // RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s |
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| 4 | // RUN: not %env_hwasan_opts=symbolize=0 %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RNOSYM %s |
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| 5 | // RUN: not %run %t -1 2>&1 | FileCheck --check-prefixes=CHECK,LSYM %s |
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| 6 | // RUN: not %env_hwasan_opts=symbolize=0 %run %t -1 2>&1 | FileCheck --check-prefixes=CHECK,LNOSYM %s |
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| 7 | |
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| 8 | // Test with and without optimizations, with and without PIC, since different |
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| 9 | // backend passes run depending on these flags. |
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| 10 | // RUN: %clang_hwasan -fno-pic %s -o %t |
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| 11 | // RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s |
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| 12 | // RUN: %clang_hwasan -fno-pic -O2 %s -o %t |
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| 13 | // RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s |
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| 14 | // RUN: %clang_hwasan -O2 %s -o %t |
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| 15 | // RUN: not %run %t 1 2>&1 | FileCheck --check-prefixes=CHECK,RSYM %s |
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| 16 | |
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| 17 | // RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t && %run %t 0 |
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| 18 | // RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t && %run %t 1 |
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| 19 | // RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -fno-pic && %run %t 1 |
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| 20 | // RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -O2 && %run %t 1 |
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| 21 | // RUN: %clang_hwasan -DUSE_NOSANITIZE %s -o %t -fno-pic -O2 && %run %t 1 |
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| 22 | |
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| 23 | // REQUIRES: pointer-tagging |
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| 24 | |
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| 25 | #include <stdlib.h> |
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| 26 | |
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| 27 | // GlobalOpt may replace the current GV with a new boolean-typed GV. Previously, |
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| 28 | // this resulted in the "nosanitize" getting dropped because while the data/code |
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| 29 | // references to the GV were updated, the old metadata references weren't. |
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| 30 | int* f() { |
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| 31 | #ifdef USE_NOSANITIZE |
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| 32 | __attribute__((no_sanitize("hwaddress" ))) static int x = 1; |
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| 33 | #else // USE_NOSANITIZE |
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| 34 | static int x = 1; |
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| 35 | #endif // USE_NOSANITIZE |
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| 36 | if (x == 1) x = 0; |
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| 37 | return &x; |
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| 38 | } |
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| 39 | |
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| 40 | int main(int argc, char **argv) { |
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| 41 | // CHECK: Cause: global-overflow |
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| 42 | // RSYM: is located 0 bytes after a 4-byte global variable f.x {{.*}} in {{.*}}global-with-reduction.c.tmp |
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| 43 | // RNOSYM: is located after a 4-byte global variable in |
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| 44 | // RNOSYM-NEXT: #0 0x{{.*}} ({{.*}}global-with-reduction.c.tmp+{{.*}}) |
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| 45 | // LSYM: is located 4 bytes before a 4-byte global variable f.x {{.*}} in {{.*}}global-with-reduction.c.tmp |
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| 46 | // LNOSYM: is located before a 4-byte global variable in |
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| 47 | // LNOSYM-NEXT: #0 0x{{.*}} ({{.*}}global-with-reduction.c.tmp+{{.*}}) |
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| 48 | // CHECK-NOT: can not describe |
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| 49 | f()[atoi(nptr: argv[1])] = 1; |
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| 50 | } |
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| 51 | |
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