2003-07-29 Geoffrey Keating <geoffk@apple.com>

	* c-common.c (allow_pch): Remove.
	* c-common.h (allow_pch): Remove.
	(c_common_no_more_pch): Declare.
	* c-lex.c (c_lex): Call c_common_no_more_pch when appropriate.
	* c-pch.c: Include hosthooks.h.
	(c_common_valid_pch): Don't check allow_pch.
	(c_common_read_pch): Clear valid_pch to prevent reading PCH files.
	(c_common_no_more_pch): New.
	* ggc-common.c: Include hosthooks.h.
	(gt_pch_save): Call gt_pch_get_address.
	(gt_pch_restore): Call gt_pch_use_address.
	* hooks.c (hook_voidp_size_t_null): New.
	(hook_bool_voidp_size_t_false): New.
	* hooks.h (hook_voidp_size_t_null): New.
	(hook_bool_voidp_size_t_false): New.
	* hosthooks-def.h (HOST_HOOKS_GT_PCH_GET_ADDRESS): New.
	(HOST_HOOKS_GT_PCH_USE_ADDRESS): New.
	(HOST_HOOKS_INITIALIZER): Add HOST_HOOKS_GT_PCH_GET_ADDRESS,
	HOST_HOOKS_GT_PCH_USE_ADDRESS.
	* hosthooks.h (struct host_hooks): Add gt_pch_get_address,
	gt_pch_use_address.
	* doc/hostconfig.texi (Host Common): Document
	HOST_HOOKS_GT_PCH_GET_ADDRESS, HOST_HOOKS_GT_PCH_USE_ADDRESS.
	* Makefile.in (c-pch.o): Depend on hosthooks.h.
	(ggc-common.o): Likewise.

	* config/rs6000/host-darwin.c (HOST_HOOKS_GT_PCH_GET_ADDRESS): Define.
	(HOST_HOOKS_GT_PCH_USE_ADDRESS): Define.
	(pch_address_space): New.
	(darwin_rs6000_gt_pch_get_address): New.
	(darwin_rs6000_gt_pch_use_address): New.

Index: cp/ChangeLog
2003-07-29  Geoffrey Keating  <geoffk@apple.com>

	* parser.c (cp_lexer_new_main): Use c_common_no_more_pch instead
	of setting valid_pch by hand.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69944 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 4 deletions

diff --git a/gcc/c-pch.c b/gcc/c-pch.c
index 2cd9b9d1a2d..23ab0f8454a 100644
--- a/gcc/c-pch.c
+++ b/gcc/c-pch.c
@@ -31,6 +31,7 @@ Boston, MA 02111-1307, USA.  */
 #include "c-pragma.h"
 #include "ggc.h"
 #include "langhooks.h"
+#include "hosthooks.h"
 
 struct c_pch_validity
 {
@@ -164,9 +165,6 @@ c_common_valid_pch (cpp_reader *pfile, const char *name, int fd)
   const char *pch_ident;
   struct c_pch_validity v;
 
-  if (! allow_pch)
-    return 2;
-
   /* Perform a quick test of whether this is a valid
      precompiled header for the current language.  */
 
@@ -244,7 +242,7 @@ c_common_read_pch (cpp_reader *pfile, const char *name,
       return;
     }
 
-  allow_pch = 0;
+  cpp_get_callbacks (parse_in)->valid_pch = NULL;
 
   if (fread (&h, sizeof (h), 1, f) != 1)
     {
@@ -274,3 +272,15 @@ c_common_read_pch (cpp_reader *pfile, const char *name,
 
   fclose (f);
 }
+
+/* Indicate that no more PCH files should be read.  */
+
+void
+c_common_no_more_pch (void)
+{
+  if (cpp_get_callbacks (parse_in)->valid_pch)
+    {
+      cpp_get_callbacks (parse_in)->valid_pch = NULL;
+      host_hooks.gt_pch_use_address (NULL, 0);
+    }
+}