Index: contrib/gcc/config/sparc/freebsd.h
===================================================================
RCS file: /home/ncvs/src/contrib/gcc/config/sparc/freebsd.h,v
retrieving revision 1.2
diff -u -r1.2 freebsd.h
--- contrib/gcc/config/sparc/freebsd.h	12 Sep 2002 17:19:09 -0000	1.2
+++ contrib/gcc/config/sparc/freebsd.h	29 Oct 2002 03:12:48 -0000
@@ -160,3 +160,34 @@
 /* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
 #undef CTORS_SECTION_ASM_OP
 #undef DTORS_SECTION_ASM_OP
+
+#define TRANSFER_FROM_TRAMPOLINE					\
+static int need_enable_exec_stack;					\
+									\
+static void check_enabling(void) __attribute__ ((constructor));		\
+static void check_enabling(void)					\
+{									\
+  extern int sysctlbyname(const char *, void *, size_t *, void *, size_t);\
+  size_t len;								\
+  int prot;								\
+									\
+  prot = 0;								\
+  len = sizeof(prot);							\
+  sysctlbyname ("kern.stackprot", &prot, &len, NULL, 0);		\
+  if (prot != 7)							\
+    need_enable_exec_stack = 1;						\
+}									\
+									\
+extern void __enable_execute_stack (void *);				\
+void									\
+__enable_execute_stack (addr)						\
+     void *addr;							\
+{									\
+  if (!need_enable_exec_stack)						\
+    return;								\
+  else {								\
+    /* 7 is PROT_READ | PROT_WRITE | PROT_EXEC */ 			\
+    if (mprotect (addr, TRAMPOLINE_SIZE, 7) < 0)			\
+      perror ("mprotect of trampoline code");				\
+  }									\
+}