[PULL 20/30] linux-user/riscv: Use force_sig_fault

[Laurent Vivier]

From: Richard Henderson <richard.henderson@linaro.org>

Use the new function instead of setting up a target_siginfo_t
and calling queue_signal.  Fix missing PC from EXCP_DEBUG by
merging the case with EXCP_BREAKPOINT.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220107213243.212806-21-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/riscv/cpu_loop.c | 31 +++++--------------------------
 1 file changed, 5 insertions(+), 26 deletions(-)

diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c
index 0cd8985cb854..26d446f32379 100644
--- a/linux-user/riscv/cpu_loop.c
+++ b/linux-user/riscv/cpu_loop.c
@@ -30,8 +30,7 @@
 void cpu_loop(CPURISCVState *env)
 {
     CPUState *cs = env_cpu(env);
-    int trapnr, signum, sigcode;
-    target_ulong sigaddr;
+    int trapnr;
     target_ulong ret;
 
     for (;;) {
@@ -40,10 +39,6 @@ void cpu_loop(CPURISCVState *env)
         cpu_exec_end(cs);
         process_queued_cpu_work(cs);
 
-        signum = 0;
-        sigcode = 0;
-        sigaddr = 0;
-
         switch (trapnr) {
         case EXCP_INTERRUPT:
             /* just indicate that signals should be handled asap */
@@ -79,39 +74,23 @@ void cpu_loop(CPURISCVState *env)
             }
             break;
         case RISCV_EXCP_ILLEGAL_INST:
-            signum = TARGET_SIGILL;
-            sigcode = TARGET_ILL_ILLOPC;
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC, env->pc);
             break;
         case RISCV_EXCP_BREAKPOINT:
-            signum = TARGET_SIGTRAP;
-            sigcode = TARGET_TRAP_BRKPT;
-            sigaddr = env->pc;
+        case EXCP_DEBUG:
+        gdbstep:
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
             break;
         case RISCV_EXCP_SEMIHOST:
             env->gpr[xA0] = do_common_semihosting(cs);
             env->pc += 4;
             break;
-        case EXCP_DEBUG:
-        gdbstep:
-            signum = TARGET_SIGTRAP;
-            sigcode = TARGET_TRAP_BRKPT;
-            break;
         default:
             EXCP_DUMP(env, "\nqemu: unhandled CPU exception %#x - aborting\n",
                      trapnr);
             exit(EXIT_FAILURE);
         }
 
-        if (signum) {
-            target_siginfo_t info = {
-                .si_signo = signum,
-                .si_errno = 0,
-                .si_code = sigcode,
-                ._sifields._sigfault._addr = sigaddr
-            };
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-        }
-
         process_pending_signals(env);
     }
 }
-- 
2.33.1