diff mbox series

[v5,32/67] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE

Message ID 20211015041053.2769193-33-richard.henderson@linaro.org
State New
Headers show
Series user-only: Cleanup SIGSEGV and SIGBUS handling | expand

Commit Message

Richard Henderson Oct. 15, 2021, 4:10 a.m. UTC 
The kernel vectors both of these through unhandled_exception, which
results in force_sig(SIGSEGV).  This isn't very useful for userland
when enabling overflow traps or fpu traps, but c'est la vie.

Reviewed-by: Stafford Horne <shorne@gmail.com>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 linux-user/openrisc/cpu_loop.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

-- 
2.25.1
diff mbox series

Patch

diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c
index f6360db47c..de5417a262 100644
--- a/linux-user/openrisc/cpu_loop.c
+++ b/linux-user/openrisc/cpu_loop.c
@@ -56,13 +56,17 @@  void cpu_loop(CPUOpenRISCState *env)
             break;
         case EXCP_DPF:
         case EXCP_IPF:
-        case EXCP_RANGE:
             info.si_signo = TARGET_SIGSEGV;
             info.si_errno = 0;
             info.si_code = TARGET_SEGV_MAPERR;
             info._sifields._sigfault._addr = env->pc;
             queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
             break;
+        case EXCP_RANGE:
+        case EXCP_FPE:
+            /* ??? The kernel vectors both of these to unhandled_exception. */
+            force_sig(TARGET_SIGSEGV);
+            break;
         case EXCP_ALIGN:
             info.si_signo = TARGET_SIGBUS;
             info.si_errno = 0;
@@ -77,13 +81,6 @@  void cpu_loop(CPUOpenRISCState *env)
             info._sifields._sigfault._addr = env->pc;
             queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
             break;
-        case EXCP_FPE:
-            info.si_signo = TARGET_SIGFPE;
-            info.si_errno = 0;
-            info.si_code = 0;
-            info._sifields._sigfault._addr = env->pc;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-            break;
         case EXCP_INTERRUPT:
             /* We processed the pending cpu work above.  */
             break;