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-rw-r--r--gcc/ada/tracebak.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/gcc/ada/tracebak.c b/gcc/ada/tracebak.c
index a8a200d..ea7bbfe 100644
--- a/gcc/ada/tracebak.c
+++ b/gcc/ada/tracebak.c
@@ -203,9 +203,23 @@ extern void (*Unlock_Task) (void);
*/
-/*--------------------------- PPC AIX/Darwin ----------------------------*/
+/*------------------- Darwin 8 (OSX 10.4) or newer ----------------------*/
+#if defined (__APPLE__) \
+ && defined (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) \
+ && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1040
+
+#define USE_GCC_UNWINDER
+
+#if defined (__i386__) || defined (__x86_64__)
+#define PC_ADJUST -2
+#elif defined (__ppc__) || defined (__ppc64__)
+#define PC_ADJUST -4
+#else
+#error Unhandled darwin architecture.
+#endif
-#if ((defined (_POWER) && defined (_AIX)) || \
+/*------------------------ PPC AIX/Older Darwin -------------------------*/
+#elif ((defined (_POWER) && defined (_AIX)) || \
(defined (__ppc__) && defined (__APPLE__)))
#define USE_GENERIC_UNWINDER