diff options
Diffstat (limited to 'tests/tcg/aarch64/mte-6.c')
-rw-r--r-- | tests/tcg/aarch64/mte-6.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/tcg/aarch64/mte-6.c b/tests/tcg/aarch64/mte-6.c new file mode 100644 index 0000000000..60d51d18be --- /dev/null +++ b/tests/tcg/aarch64/mte-6.c @@ -0,0 +1,43 @@ +#include "mte.h" + +void pass(int sig, siginfo_t *info, void *uc) +{ + assert(info->si_code == SEGV_MTESERR); + exit(0); +} + +int main(void) +{ + enable_mte(PR_MTE_TCF_SYNC); + + void *brk = sbrk(16); + if (brk == (void *)-1) { + perror("sbrk"); + return 2; + } + + if (mprotect(brk, 16, PROT_READ | PROT_WRITE | PROT_MTE)) { + perror("mprotect"); + return 2; + } + + int *p1, *p2; + long excl = 1; + + asm("irg %0,%1,%2" : "=r"(p1) : "r"(brk), "r"(excl)); + asm("gmi %0,%1,%0" : "+r"(excl) : "r"(p1)); + asm("irg %0,%1,%2" : "=r"(p2) : "r"(brk), "r"(excl)); + asm("stg %0,[%0]" : : "r"(p1)); + + *p1 = 0; + + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = pass; + sa.sa_flags = SA_SIGINFO; + sigaction(SIGSEGV, &sa, NULL); + + *p2 = 0; + + abort(); +} |