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[PATCH v3 03/23] linux-user/alpha: Use force_sig_fault


From: Richard Henderson
Subject: [PATCH v3 03/23] linux-user/alpha: Use force_sig_fault
Date: Wed, 3 Nov 2021 10:08:27 -0400

Use the new function instead of setting up a target_siginfo_t
and calling queue_signal.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/alpha/cpu_loop.c | 61 ++++++++++++-------------------------
 1 file changed, 19 insertions(+), 42 deletions(-)

diff --git a/linux-user/alpha/cpu_loop.c b/linux-user/alpha/cpu_loop.c
index 92de2a4424..0e4c2db462 100644
--- a/linux-user/alpha/cpu_loop.c
+++ b/linux-user/alpha/cpu_loop.c
@@ -27,8 +27,7 @@
 void cpu_loop(CPUAlphaState *env)
 {
     CPUState *cs = env_cpu(env);
-    int trapnr;
-    target_siginfo_t info;
+    int trapnr, si_code;
     abi_long sysret;
 
     while (1) {
@@ -56,18 +55,10 @@ void cpu_loop(CPUAlphaState *env)
             break;
         case EXCP_OPCDEC:
         do_sigill:
-            info.si_signo = TARGET_SIGILL;
-            info.si_errno = 0;
-            info.si_code = TARGET_ILL_ILLOPC;
-            info._sifields._sigfault._addr = env->pc;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC, env->pc);
             break;
         case EXCP_ARITH:
-            info.si_signo = TARGET_SIGFPE;
-            info.si_errno = 0;
-            info.si_code = TARGET_FPE_FLTINV;
-            info._sifields._sigfault._addr = env->pc;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGFPE, TARGET_FPE_FLTINV, env->pc);
             break;
         case EXCP_FEN:
             /* No-op.  Linux simply re-enables the FPU.  */
@@ -76,20 +67,10 @@ void cpu_loop(CPUAlphaState *env)
             switch (env->error_code) {
             case 0x80:
                 /* BPT */
-                info.si_signo = TARGET_SIGTRAP;
-                info.si_errno = 0;
-                info.si_code = TARGET_TRAP_BRKPT;
-                info._sifields._sigfault._addr = env->pc;
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-                break;
+                goto do_sigtrap_brkpt;
             case 0x81:
                 /* BUGCHK */
-                info.si_signo = TARGET_SIGTRAP;
-                info.si_errno = 0;
-                info.si_code = TARGET_TRAP_UNK;
-                info._sifields._sigfault._addr = env->pc;
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-                break;
+                goto do_sigtrap_unk;
             case 0x83:
                 /* CALLSYS */
                 trapnr = env->ir[IR_V0];
@@ -130,47 +111,43 @@ void cpu_loop(CPUAlphaState *env)
                 abort();
             case 0xAA:
                 /* GENTRAP */
-                info.si_signo = TARGET_SIGFPE;
                 switch (env->ir[IR_A0]) {
                 case TARGET_GEN_INTOVF:
-                    info.si_code = TARGET_FPE_INTOVF;
+                    si_code = TARGET_FPE_INTOVF;
                     break;
                 case TARGET_GEN_INTDIV:
-                    info.si_code = TARGET_FPE_INTDIV;
+                    si_code = TARGET_FPE_INTDIV;
                     break;
                 case TARGET_GEN_FLTOVF:
-                    info.si_code = TARGET_FPE_FLTOVF;
+                    si_code = TARGET_FPE_FLTOVF;
                     break;
                 case TARGET_GEN_FLTUND:
-                    info.si_code = TARGET_FPE_FLTUND;
+                    si_code = TARGET_FPE_FLTUND;
                     break;
                 case TARGET_GEN_FLTINV:
-                    info.si_code = TARGET_FPE_FLTINV;
+                    si_code = TARGET_FPE_FLTINV;
                     break;
                 case TARGET_GEN_FLTINE:
-                    info.si_code = TARGET_FPE_FLTRES;
+                    si_code = TARGET_FPE_FLTRES;
                     break;
                 case TARGET_GEN_ROPRAND:
-                    info.si_code = TARGET_FPE_FLTUNK;
+                    si_code = TARGET_FPE_FLTUNK;
                     break;
                 default:
-                    info.si_signo = TARGET_SIGTRAP;
-                    info.si_code = TARGET_TRAP_UNK;
-                    break;
+                    goto do_sigtrap_unk;
                 }
-                info.si_errno = 0;
-                info._sifields._sigfault._addr = env->pc;
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+                force_sig_fault(TARGET_SIGFPE, si_code, env->pc);
                 break;
             default:
                 goto do_sigill;
             }
             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);
+        do_sigtrap_brkpt:
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
+            break;
+        do_sigtrap_unk:
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_UNK, env->pc);
             break;
         case EXCP_INTERRUPT:
             /* Just indicate that signals should be handled asap.  */
-- 
2.25.1




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