tests/tcg/ppc64le: change signal_save_restore_xer to use SIGTRAP

Now that linux-user delivers the signal on tw, we can change
signal_save_restore_xer to use SIGTRAP instead of SIGILL.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220113170456.1796911-3-matheus.ferst@eldorado.org.br>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Matheus Ferst 2022-01-13 14:04:55 -03:00 committed by Laurent Vivier
parent 083fe9a12d
commit 62089c849d

View File

@ -11,7 +11,7 @@
uint64_t saved;
void sigill_handler(int sig, siginfo_t *si, void *ucontext)
void sigtrap_handler(int sig, siginfo_t *si, void *ucontext)
{
ucontext_t *uc = ucontext;
uc->uc_mcontext.regs->nip += 4;
@ -23,14 +23,14 @@ int main(void)
{
uint64_t initial = XER_CA | XER_CA32, restored;
struct sigaction sa = {
.sa_sigaction = sigill_handler,
.sa_sigaction = sigtrap_handler,
.sa_flags = SA_SIGINFO
};
sigaction(SIGILL, &sa, NULL);
sigaction(SIGTRAP, &sa, NULL);
asm("mtspr 1, %1\n\t"
".long 0x0\n\t"
"trap\n\t"
"mfspr %0, 1\n\t"
: "=r" (restored)
: "r" (initial));