From: Richard Henderson <richard.henderson@linaro.org>
Date: Thu, 6 Jan 2022 22:57:36 +0000 (-0800)
Subject: linux-user: Map signal number in PR_GET_PDEATHSIG
X-Git-Tag: v7.0.0-rc0~94^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1edebb36ea1809c7882a7be9654260adbbfdcb35;p=thirdparty%2Fqemu.git

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>
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index eff107b8bcf..b17cfe31c8b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6444,7 +6444,8 @@ static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
             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;