From: Petar Jovanovic <petar.jovanovic@imgtec.com>
Date: Mon, 3 Mar 2014 14:07:41 +0000 (+0100)
Subject: linux-user: translate signal number on return from sigtimedwait
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~1008^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=974a196d7fc9f2f5553589b0022226b877e5c9b1;p=sdk%2Femulator%2Fqemu.git

linux-user: translate signal number on return from sigtimedwait

On success, sigtimedwait() returns a signal number that needs to be
translated from a host value to a target value.

This change also fixes issues with sigwait (that is implemented using
sigtimedwait()).

Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 1f64867..e2c10cc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6185,11 +6185,17 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
                 puts = NULL;
             }
             ret = get_errno(sigtimedwait(&set, &uinfo, puts));
-            if (!is_error(ret) && arg2) {
-                if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
-                    goto efault;
-                host_to_target_siginfo(p, &uinfo);
-                unlock_user(p, arg2, sizeof(target_siginfo_t));
+            if (!is_error(ret)) {
+                if (arg2) {
+                    p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
+                                  0);
+                    if (!p) {
+                        goto efault;
+                    }
+                    host_to_target_siginfo(p, &uinfo);
+                    unlock_user(p, arg2, sizeof(target_siginfo_t));
+                }
+                ret = host_to_target_signal(ret);
             }
         }
         break;