| /* { dg-do run } */ |
| /* { dg-require-effective-target hwaddress_exec } */ |
| /* { dg-shouldfail "hwasan" } */ |
| |
| /* Ensure that hwasan instruments bitfield accesses. */ |
| struct A |
| { |
| /* Ensure the offset from the start of this struct to the bitfield we access |
| is large enough to be in a different tag. */ |
| char base[16]; |
| int : 4; |
| long x : 7; |
| }; |
| |
| int __attribute__ ((noinline, noclone)) |
| f (void *p) { |
| return ((struct A *)p)->x; |
| } |
| |
| int |
| main () |
| { |
| char a = 0; |
| return f (&a); |
| } |
| |
| /* { dg-output "HWAddressSanitizer: tag-mismatch on address 0x\[0-9a-f\]*.*" } */ |
| /* { dg-output "READ of size 2 at 0x\[0-9a-f\]* tags: \[\[:xdigit:\]\]\[\[:xdigit:\]\]/00 \\(ptr/mem\\) in thread T0.*" } */ |
| /* { dg-output "Address 0x\[0-9a-f\]* is located in stack of thread T0.*" } */ |
| /* { dg-output "SUMMARY: HWAddressSanitizer: tag-mismatch \[^\n\]*.*" } */ |
