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

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 <[e-mail]>
---
 linux-user/xtensa/cpu_loop.c | 34 ++++++++++++----------------------
 1 file changed, 12 insertions(+), 22 deletions(-)

Comments

Peter Maydell Aug. 24, 2021, 5:26 p.m. UTC | #1

On Sun, 22 Aug 2021 at 04:55, Richard Henderson
<[e-mail]> wrote:
>
> Use the new functions instead of setting up a target_siginfo_t
> and calling queue_signal.
>
> Signed-off-by: Richard Henderson <[e-mail]>
> ---
>  linux-user/xtensa/cpu_loop.c | 34 ++++++++++++----------------------
>  1 file changed, 12 insertions(+), 22 deletions(-)
>

Reviewed-by: Peter Maydell <[e-mail]>

thanks
-- PMM

Patch

diff --git a/linux-user/xtensa/cpu_loop.c b/linux-user/xtensa/cpu_loop.c
index 64831c9199..869a8501b8 100644
--- a/linux-user/xtensa/cpu_loop.c
+++ b/linux-user/xtensa/cpu_loop.c
@@ -20,6 +20,8 @@ 
 #include "qemu/osdep.h"
 #include "qemu.h"
 #include "cpu_loop-common.h"
+#include "signal-common.h"
+
 
 static void xtensa_rfw(CPUXtensaState *env)
 {
@@ -124,7 +126,6 @@  static void xtensa_underflow12(CPUXtensaState *env)
 void cpu_loop(CPUXtensaState *env)
 {
     CPUState *cs = env_cpu(env);
-    target_siginfo_t info;
     abi_ulong ret;
     int trapnr;
 
@@ -161,14 +162,12 @@  void cpu_loop(CPUXtensaState *env)
         case EXC_USER:
             switch (env->sregs[EXCCAUSE]) {
             case ILLEGAL_INSTRUCTION_CAUSE:
+                force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC,
+                                env->sregs[EPC1]);
+                break;
             case PRIVILEGED_CAUSE:
-                info.si_signo = TARGET_SIGILL;
-                info.si_errno = 0;
-                info.si_code =
-                    env->sregs[EXCCAUSE] == ILLEGAL_INSTRUCTION_CAUSE ?
-                    TARGET_ILL_ILLOPC : TARGET_ILL_PRVOPC;
-                info._sifields._sigfault._addr = env->sregs[EPC1];
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+                force_sig_fault(TARGET_SIGILL, TARGET_ILL_PRVOPC,
+                                env->sregs[EPC1]);
                 break;
 
             case SYSCALL_CAUSE:
@@ -217,20 +216,13 @@  void cpu_loop(CPUXtensaState *env)
                 break;
 
             case INTEGER_DIVIDE_BY_ZERO_CAUSE:
-                info.si_signo = TARGET_SIGFPE;
-                info.si_errno = 0;
-                info.si_code = TARGET_FPE_INTDIV;
-                info._sifields._sigfault._addr = env->sregs[EPC1];
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+                force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTDIV,
+                                env->sregs[EPC1]);
                 break;
 
             case LOAD_PROHIBITED_CAUSE:
             case STORE_PROHIBITED_CAUSE:
-                info.si_signo = TARGET_SIGSEGV;
-                info.si_errno = 0;
-                info.si_code = TARGET_SEGV_ACCERR;
-                info._sifields._sigfault._addr = env->sregs[EXCVADDR];
-                queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+                force_sigsegv_for_addr(env->sregs[EXCVADDR]);
                 break;
 
             default:
@@ -239,10 +231,8 @@  void cpu_loop(CPUXtensaState *env)
             }
             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);
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT,
+                            env->sregs[EPC1]);
             break;
         case EXC_DEBUG:
         default: