[PATCH v3 02/25] linux-user/aarch64: Use force_sig_fault()

[Richard Henderson]

From: Peter Maydell <peter.maydell@linaro.org>

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

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210813131809.28655-8-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/aarch64/cpu_loop.c | 34 +++++++++-------------------------
 1 file changed, 9 insertions(+), 25 deletions(-)

diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index 5d8675944d..11e34cb100 100644
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -21,6 +21,7 @@
 #include "qemu-common.h"
 #include "qemu.h"
 #include "cpu_loop-common.h"
+#include "signal-common.h"
 #include "qemu/guest-random.h"
 #include "semihosting/common-semi.h"
 #include "target/arm/syndrome.h"
@@ -77,9 +78,8 @@
 void cpu_loop(CPUARMState *env)
 {
     CPUState *cs = env_cpu(env);
-    int trapnr, ec, fsc;
+    int trapnr, ec, fsc, si_code;
     abi_long ret;
-    target_siginfo_t info;
 
     for (;;) {
         cpu_exec_start(cs);
@@ -108,18 +108,10 @@ void cpu_loop(CPUARMState *env)
             /* just indicate that signals should be handled asap */
             break;
         case EXCP_UDEF:
-            info.si_signo = TARGET_SIGILL;
-            info.si_errno = 0;
-            info.si_code = TARGET_ILL_ILLOPN;
-            info._sifields._sigfault._addr = env->pc;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPN, env->pc);
             break;
         case EXCP_PREFETCH_ABORT:
         case EXCP_DATA_ABORT:
-            info.si_signo = TARGET_SIGSEGV;
-            info.si_errno = 0;
-            info._sifields._sigfault._addr = env->exception.vaddress;
-
             /* We should only arrive here with EC in {DATAABORT, INSNABORT}. */
             ec = syn_get_ec(env->exception.syndrome);
             assert(ec == EC_DATAABORT || ec == EC_INSNABORT);
@@ -128,28 +120,24 @@ void cpu_loop(CPUARMState *env)
             fsc = extract32(env->exception.syndrome, 0, 6);
             switch (fsc) {
             case 0x04 ... 0x07: /* Translation fault, level {0-3} */
-                info.si_code = TARGET_SEGV_MAPERR;
+                si_code = TARGET_SEGV_MAPERR;
                 break;
             case 0x09 ... 0x0b: /* Access flag fault, level {1-3} */
             case 0x0d ... 0x0f: /* Permission fault, level {1-3} */
-                info.si_code = TARGET_SEGV_ACCERR;
+                si_code = TARGET_SEGV_ACCERR;
                 break;
             case 0x11: /* Synchronous Tag Check Fault */
-                info.si_code = TARGET_SEGV_MTESERR;
+                si_code = TARGET_SEGV_MTESERR;
                 break;
             default:
                 g_assert_not_reached();
             }
 
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGSEGV, si_code, env->exception.vaddress);
             break;
         case EXCP_DEBUG:
         case EXCP_BKPT:
-            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);
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
             break;
         case EXCP_SEMIHOST:
             env->xregs[0] = do_common_semihosting(cs);
@@ -169,11 +157,7 @@ void cpu_loop(CPUARMState *env)
         /* Check for MTE asynchronous faults */
         if (unlikely(env->cp15.tfsr_el[0])) {
             env->cp15.tfsr_el[0] = 0;
-            info.si_signo = TARGET_SIGSEGV;
-            info.si_errno = 0;
-            info._sifields._sigfault._addr = 0;
-            info.si_code = TARGET_SEGV_MTEAERR;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGSEGV, TARGET_SEGV_MTEAERR, 0);
         }
 
         process_pending_signals(env);
-- 
2.25.1