| 1 | #if __LP64__ |
|---|---|
| 2 | # define SANITIZER_WORDSIZE 64 |
| 3 | #else |
| 4 | # define SANITIZER_WORDSIZE 32 |
| 5 | #endif |
| 6 | |
| 7 | // This is a simplified version of GetMaxVirtualAddress function. |
| 8 | unsigned long SystemVMA () { |
| 9 | #if SANITIZER_WORDSIZE == 64 |
| 10 | unsigned long vma = (unsigned long)__builtin_frame_address(0); |
| 11 | return SANITIZER_WORDSIZE - __builtin_clzll(vma); |
| 12 | #else |
| 13 | return SANITIZER_WORDSIZE; |
| 14 | #endif |
| 15 | } |
| 16 |