2007-01-15 Andreas Tobler <a.tobler@schweiz.org>

[pf3gnuchains/gcc-fork.git] / boehm-gc / os_dep.c

diff --git a/boehm-gc/os_dep.c b/boehm-gc/os_dep.c
index fb50a45..de7cdd5 100644 (file)
--- a/boehm-gc/os_dep.c
+++ b/boehm-gc/os_dep.c
@@ -1181,12 +1181,15 @@ void GC_register_data_segments()
        /* This used to be set for gcc, to avoid dealing with           */
        /* the structured exception handling issues.  But we now have   */
        /* assembly code to do that right.                              */
+  GC_bool GC_wnt = FALSE;
+        /* This is a Windows NT derivative, i.e. NT, W2K, XP or later.  */
   
   void GC_init_win32()
   {
     /* if we're running under win32s, assume that no DLLs will be loaded */
     DWORD v = GetVersion();
-    GC_no_win32_dlls |= ((v & 0x80000000) && (v & 0xff) <= 3);
+    GC_wnt = !(v & 0x80000000);
+    GC_no_win32_dlls |= ((!GC_wnt) && (v & 0xff) <= 3);
   }
 
   /* Return the smallest address a such that VirtualQuery              */
@@ -3368,7 +3371,7 @@ GC_bool is_ptrfree;
       1. Apple's mach/xnu documentation
       2. Timothy J. Wood's "Mach Exception Handlers 101" post to the
          omnigroup's macosx-dev list. 
-         www.omnigroup.com/mailman/archive/macosx-dev/2000-June/002030.html
+         www.omnigroup.com/mailman/archive/macosx-dev/2000-June/014178.html
       3. macosx-nat.c from Apple's GDB source code.
 */
    
@@ -3680,7 +3683,7 @@ void GC_dirty_init() {
         mask,
         GC_ports.exception,
         EXCEPTION_DEFAULT,
-        MACHINE_THREAD_STATE
+        GC_MACH_THREAD_STATE
     );
     if(r != KERN_SUCCESS) ABORT("task_set_exception_ports failed");
 
@@ -3799,6 +3802,16 @@ catch_exception_raise(
         mach_msg_type_number_t exc_state_count = PPC_EXCEPTION_STATE64_COUNT;
         ppc_exception_state64_t exc_state;
 #     endif
+#   elif defined(I386) || defined(X86_64)
+#     if CPP_WORDSZ == 32
+       thread_state_flavor_t flavor = x86_EXCEPTION_STATE32;
+       mach_msg_type_number_t exc_state_count = x86_EXCEPTION_STATE32_COUNT;
+       x86_exception_state32_t exc_state;
+#     else
+       thread_state_flavor_t flavor = x86_EXCEPTION_STATE64;
+       mach_msg_type_number_t exc_state_count = x86_EXCEPTION_STATE64_COUNT;
+       x86_exception_state64_t exc_state;
+#     endif
 #   else
 #      error FIXME for non-ppc darwin
 #   endif
@@ -3830,7 +3843,13 @@ catch_exception_raise(
     }
     
     /* This is the address that caused the fault */
+#if defined(POWERPC)
     addr = (char*) exc_state.dar;
+#elif defined (I386) || defined (X86_64)
+    addr = (char*) exc_state.faultvaddr;
+#else
+#   error FIXME for non POWERPC/I386
+#endif
         
     if((HDR(addr)) == 0) {
         /* Ugh... just like the SIGBUS problem above, it seems we get a bogus