diff mbox series

[v2,23/30] linux-user/mips: Use force_sig_fault, force_sigsegv_for_addr

Message ID 20210822035537.283193-24-richard.henderson@linaro.org (mailing list archive)
State New, archived
Headers show
Series linux-user: Clean up siginfo_t handling | expand

Commit Message

Richard Henderson Aug. 22, 2021, 3:55 a.m. UTC 
Use the new functions instead of setting up a target_siginfo_t
and calling queue_signal.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/mips/cpu_loop.c | 45 ++++++++++++--------------------------
 1 file changed, 14 insertions(+), 31 deletions(-)

Comments

Peter Maydell Aug. 24, 2021, 5:04 p.m. UTC | #1 
On Sun, 22 Aug 2021 at 04:55, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Use the new functions instead of setting up a target_siginfo_t
> and calling queue_signal.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  linux-user/mips/cpu_loop.c | 45 ++++++++++++--------------------------
>  1 file changed, 14 insertions(+), 31 deletions(-)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

with the usual caveat about documenting behaviour changes in
the commit message.

thanks
-- PMM
diff mbox series

Patch

diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 797b6bf659..2350ac66e1 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -63,8 +63,7 @@  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;
@@ -157,52 +156,36 @@  done_syscall:
         case EXCP_TLBS:
         case EXCP_AdEL:
         case EXCP_AdES:
-            info.si_signo = TARGET_SIGSEGV;
-            info.si_errno = 0;
-            /* XXX: check env->error_code */
-            info.si_code = TARGET_SEGV_MAPERR;
-            info._sifields._sigfault._addr = env->CP0_BadVAddr;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sigsegv_for_addr(env->CP0_BadVAddr);
             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.
          */