commit 742f07628c0a0bd847b47ee0a0b20c44531e0ba5
author Richard Henderson <richard.henderson@linaro.org> Mon Oct 04 19:39:29 2021 -0700
committer Richard Henderson <richard.henderson@linaro.org> Tue Nov 02 07:00:52 2021 -0400
tree b65c5b3f5682c439d84b5b5b52392303a24bac57
parent 37e891e38fe1e81fc468d8a000912f8e7ee61336

linux-user: Handle BUS_ADRALN in host_signal_handler

Handle BUS_ADRALN via cpu_loop_exit_sigbus, but allow other SIGBUS
si_codes to continue into the host-to-guest signal conversion code.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

linux-user/signal.c

diff --git a/linux-user/signal.c b/linux-user/signal.c
index df2c867..81c45bf 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -860,6 +860,9 @@
             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;