From bf03a1b30409e2294987cc9664bd6f41e8861b00 Mon Sep 17 00:00:00 2001
From: Pete Delaney <piet@mips.com>
Date: Fri, 5 Oct 2012 00:23:50 -0700
Subject: [PATCH] [MIPS] Add support for waitpid.

Change-Id: I7b3b90f9a64d40c5aa72c74cac6881f1189c1462
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Pete Delaney  <piet@mips.com>
---
 ndk/sources/android/libportable/Android.mk    |  3 +-
 .../android/libportable/arch-mips/waitpid.c   | 44 +++++++++++++++++++
 2 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 ndk/sources/android/libportable/arch-mips/waitpid.c

diff --git a/ndk/sources/android/libportable/Android.mk b/ndk/sources/android/libportable/Android.mk
index 1f691cd80..19501e89c 100644
--- a/ndk/sources/android/libportable/Android.mk
+++ b/ndk/sources/android/libportable/Android.mk
@@ -46,7 +46,8 @@ libportable_arch_src_files += \
 			arch-mips/stat.c \
 			arch-mips/statfs.c \
 			arch-mips/syscall.c \
-			arch-mips/timer.c
+			arch-mips/timer.c \
+			arch-mips/waitpid.c
 endif
 
 ifeq ($(TARGET_ARCH),arm)
diff --git a/ndk/sources/android/libportable/arch-mips/waitpid.c b/ndk/sources/android/libportable/arch-mips/waitpid.c
new file mode 100644
index 000000000..5b4168efe
--- /dev/null
+++ b/ndk/sources/android/libportable/arch-mips/waitpid.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <signal_portable.h>
+#include <stdio.h>
+#include <sys/wait.h>
+
+#define PORTABLE_TAG            "waitpid_portable"
+#include <log_portable.h>
+
+pid_t waitpid_portable(pid_t pid, int *status, int options)
+{
+    pid_t ret;
+
+    ret = waitpid(pid, status, options);
+    if (status && ret > 0) {
+        /*
+         * Status layout is identical so just the signal
+         * number needs to be changed.
+         */
+        if (WIFSIGNALED(*status))
+            *status = (*status & ~0x7f) | map_mips_signum_to_portable(WTERMSIG(*status));
+        else if (WIFSTOPPED(*status))
+            *status = (*status & ~0xff00) | (map_mips_signum_to_portable(WSTOPSIG(*status)) << 8);
+    }
+
+    return ret;
+}