aboutsummaryrefslogtreecommitdiff
path: root/linux-user
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2022-01-07 13:32:34 -0800
committerLaurent Vivier <laurent@vivier.eu>2022-01-11 18:40:44 +0100
commit73c0aa6a85253d1d5df6a7dfa14c7568e084cf96 (patch)
tree8d031b930a57d83971c1af49ee5ed00ec480434e /linux-user
parentbf19bdb8f39a3aeb1353d412669b958c2b6cece8 (diff)
downloadqemu-73c0aa6a85253d1d5df6a7dfa14c7568e084cf96.zip
qemu-73c0aa6a85253d1d5df6a7dfa14c7568e084cf96.tar.gz
qemu-73c0aa6a85253d1d5df6a7dfa14c7568e084cf96.tar.bz2
linux-user/mips: Use force_sig_fault
Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fill in the missing PC for SIGTRAP and SIGFPE; use force_sig (SI_KERNEL) for EXCP_DSPDIS. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/mips/cpu_loop.c38
1 files changed, 13 insertions, 25 deletions
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 4fa24cc..1286fbc 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -64,8 +64,7 @@ static void do_tr_or_bp(CPUMIPSState *env, unsigned int code, bool trap)
void cpu_loop(CPUMIPSState *env)
{
CPUState *cs = env_cpu(env);
- target_siginfo_t info;
- int trapnr;
+ int trapnr, si_code;
abi_long ret;
# ifdef TARGET_ABI_MIPSO32
unsigned int syscall_num;
@@ -156,43 +155,32 @@ done_syscall:
break;
case EXCP_CpU:
case EXCP_RI:
- info.si_signo = TARGET_SIGILL;
- info.si_errno = 0;
- info.si_code = 0;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+ case EXCP_DSPDIS:
+ force_sig(TARGET_SIGILL);
break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
case EXCP_DEBUG:
- info.si_signo = TARGET_SIGTRAP;
- info.si_errno = 0;
- info.si_code = TARGET_TRAP_BRKPT;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
- break;
- case EXCP_DSPDIS:
- info.si_signo = TARGET_SIGILL;
- info.si_errno = 0;
- info.si_code = TARGET_ILL_ILLOPC;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+ force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT,
+ env->active_tc.PC);
break;
case EXCP_FPE:
- info.si_signo = TARGET_SIGFPE;
- info.si_errno = 0;
- info.si_code = TARGET_FPE_FLTUNK;
+ si_code = TARGET_FPE_FLTUNK;
if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) {
- info.si_code = TARGET_FPE_FLTINV;
+ si_code = TARGET_FPE_FLTINV;
} else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_DIV0) {
- info.si_code = TARGET_FPE_FLTDIV;
+ si_code = TARGET_FPE_FLTDIV;
} else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_OVERFLOW) {
- info.si_code = TARGET_FPE_FLTOVF;
+ si_code = TARGET_FPE_FLTOVF;
} else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_UNDERFLOW) {
- info.si_code = TARGET_FPE_FLTUND;
+ si_code = TARGET_FPE_FLTUND;
} else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INEXACT) {
- info.si_code = TARGET_FPE_FLTRES;
+ si_code = TARGET_FPE_FLTRES;
}
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+ force_sig_fault(TARGET_SIGFPE, si_code, env->active_tc.PC);
break;
+
/* The code below was inspired by the MIPS Linux kernel trap
* handling code in arch/mips/kernel/traps.c.
*/