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authorAndre Heider <a.heider@gmail.com>2018-11-06 09:27:12 +0100
committerEmil Velikov <emil.l.velikov@gmail.com>2018-11-14 18:53:02 +0000
commit5f137e94b992a62e98dfa604cd43f57c5385e53b (patch)
treeb71223b8b5c51e2fb3252d49d1178182f0259b5f
parentc64a78ec0a5daf862e10d8a4fb931348167b6d3f (diff)
st/nine: fix stack corruption due to ABI mismatch
This fixes various crashes and hangs when using nine's 'thread_submit' feature. On 64bit, the thread function's data argument would just be NULL. On 32bit, the data argument would be garbage depending on the compiler flags (in my case -march>=core2). Fixes: f3fa7e3068512d ("st/nine: Use WINE thread for threadpool") Cc: mesa-stable@lists.freedesktop.org Signed-off-by: Andre Heider <a.heider@gmail.com> Reviewed-by: Axel Davy <davyaxel0@gmail.com> (cherry picked from commit 10598c9667a9c5ea04ac8279549b1df8c026ef51)
-rw-r--r--src/gallium/state_trackers/nine/threadpool.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/gallium/state_trackers/nine/threadpool.c b/src/gallium/state_trackers/nine/threadpool.c
index cc62fd25799..19721aab2dd 100644
--- a/src/gallium/state_trackers/nine/threadpool.c
+++ b/src/gallium/state_trackers/nine/threadpool.c
@@ -37,6 +37,7 @@
#include "os/os_thread.h"
#include "threadpool.h"
+/* POSIX thread function */
static void *
threadpool_worker(void *data)
{
@@ -76,6 +77,15 @@ threadpool_worker(void *data)
return NULL;
}
+/* Windows thread function */
+static DWORD NINE_WINAPI
+wthreadpool_worker(void *data)
+{
+ threadpool_worker(data);
+
+ return 0;
+}
+
struct threadpool *
_mesa_threadpool_create(struct NineSwapChain9 *swapchain)
{
@@ -87,7 +97,9 @@ _mesa_threadpool_create(struct NineSwapChain9 *swapchain)
pthread_mutex_init(&pool->m, NULL);
pthread_cond_init(&pool->new_work, NULL);
- pool->wthread = NineSwapChain9_CreateThread(swapchain, threadpool_worker, pool);
+ /* This uses WINE's CreateThread, so the thread function needs to use
+ * the Windows ABI */
+ pool->wthread = NineSwapChain9_CreateThread(swapchain, wthreadpool_worker, pool);
if (!pool->wthread) {
/* using pthread as fallback */
pthread_create(&pool->pthread, NULL, threadpool_worker, pool);