commit 1edebb36ea1809c7882a7be9654260adbbfdcb35
author Richard Henderson <richard.henderson@linaro.org> Thu Jan 06 14:57:36 2022 -0800
committer Laurent Vivier <laurent@vivier.eu> Tue Jan 11 18:40:44 2022 +0100
tree df11bf49087672365b695c7101cb505149588caf
parent 08f5f973491b7e575231afbb1fa5c96f39c257b2

linux-user: Map signal number in PR_GET_PDEATHSIG

Convert the host signal number to guest signal number
before returning the value to the guest.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220106225738.103012-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/syscall.c

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index eff107b..b17cfe3 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6444,7 +6444,8 @@
             int deathsig;
             ret = get_errno(prctl(PR_GET_PDEATHSIG, &deathsig,
                                   arg3, arg4, arg5));
-            if (!is_error(ret) && put_user_s32(deathsig, arg2)) {
+            if (!is_error(ret) &&
+                put_user_s32(host_to_target_signal(deathsig), arg2)) {
                 return -TARGET_EFAULT;
             }
             return ret;