8026385: [macosx] (awt) setjmp/longjmp changes the process signal mask on OS X

Use _setjmp/_longjmp instead

Reviewed-by: prr, anthony

jdk/src/share/native/sun/awt/image/jpeg/imageioJPEG.c

@@ -56,6 +56,12 @@
 #undef MAX
 #define MAX(a,b)        ((a) > (b) ? (a) : (b))
 
+#ifdef __APPLE__
+/* use setjmp/longjmp versions that do not save/restore the signal mask */
+#define setjmp _setjmp
+#define longjmp _longjmp
+#endif
+
 /* Cached Java method ids */
 static jmethodID JPEGImageReader_readInputDataID;
 static jmethodID JPEGImageReader_skipInputBytesID;

jdk/src/share/native/sun/awt/image/jpeg/jpegdecoder.c

@@ -47,6 +47,12 @@
 #include <jpeglib.h>
 #include "jerror.h"
 
+#ifdef __APPLE__
+/* use setjmp/longjmp versions that do not save/restore the signal mask */
+#define setjmp _setjmp
+#define longjmp _longjmp
+#endif
+
 /* The method IDs we cache. Note that the last two belongs to the
  * java.io.InputStream class.
  */

jdk/src/share/native/sun/awt/splashscreen/splashscreen_jpeg.c

@@ -30,6 +30,12 @@
 
 #include <setjmp.h>
 
+#ifdef __APPLE__
+/* use setjmp/longjmp versions that do not save/restore the signal mask */
+#define setjmp _setjmp
+#define longjmp _longjmp
+#endif
+
 /* stream input handling */
 
 typedef struct

jdk/src/share/native/sun/awt/splashscreen/splashscreen_png.c

@@ -71,7 +71,12 @@ SplashDecodePng(Splash * splash, png_rw_ptr read_func, void *io_ptr)
         goto done;
     }
 
+#ifdef __APPLE__
+    /* use setjmp/longjmp versions that do not save/restore the signal mask */
+    if (_setjmp(png_set_longjmp_fn(png_ptr, _longjmp, sizeof(jmp_buf)))) {
+#else
     if (setjmp(png_jmpbuf(png_ptr))) {
+#endif
         goto done;
     }