diff mbox series

[v5,61/67] linux-user: Handle BUS_ADRALN in host_signal_handler

Message ID 20211015041053.2769193-62-richard.henderson@linaro.org
State Superseded
Headers show
Series user-only: Cleanup SIGSEGV and SIGBUS handling | expand

Commit Message

Richard Henderson Oct. 15, 2021, 4:10 a.m. UTC 
Handle BUS_ADRALN via cpu_loop_exit_sigbus, but allow other SIGBUS
si_codes to continue into the host-to-guest signal coversion code.

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

---
 linux-user/signal.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.25.1

Comments

Philippe Mathieu-Daudé Oct. 29, 2021, 11:46 p.m. UTC | #1 
On 10/15/21 06:10, Richard Henderson wrote:
> Handle BUS_ADRALN via cpu_loop_exit_sigbus, but allow other SIGBUS

> si_codes to continue into the host-to-guest signal coversion code.


Typo "conversion".

> 

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

> ---

>  linux-user/signal.c | 3 +++

>  1 file changed, 3 insertions(+)

> 

> diff --git a/linux-user/signal.c b/linux-user/signal.c

> index df2c8678d0..81c45bfce9 100644

> --- a/linux-user/signal.c

> +++ b/linux-user/signal.c

> @@ -860,6 +860,9 @@ static void host_signal_handler(int host_sig, siginfo_t *info, void *puc)

>              cpu_loop_exit_sigsegv(cpu, guest_addr, access_type, maperr, pc);

>          } else {

>              sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);

> +            if (info->si_code == BUS_ADRALN) {

> +                cpu_loop_exit_sigbus(cpu, guest_addr, access_type, pc);

> +            }

>          }


To the best of my knowledge,
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/linux-user/signal.c b/linux-user/signal.c
index df2c8678d0..81c45bfce9 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -860,6 +860,9 @@  static void host_signal_handler(int host_sig, siginfo_t *info, void *puc)
             cpu_loop_exit_sigsegv(cpu, guest_addr, access_type, maperr, pc);
         } else {
             sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);
+            if (info->si_code == BUS_ADRALN) {
+                cpu_loop_exit_sigbus(cpu, guest_addr, access_type, pc);
+            }
         }
 
         sync_sig = true;