CVS: gcc/gcc-3.3 gcc-3.2.3-cygwin.patch,NONE,1.1

Update of /cvsroot/mspgcc/gcc/gcc-3.3
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv18151/gcc/gcc-3.3

Added Files:
	gcc-3.2.3-cygwin.patch 
Log Message:
A patch to work around a memory allocation bug in Cygwin


--- NEW FILE: gcc-3.2.3-cygwin.patch ---
--- gcc-3.2.3.orig/ggc/gcc-page.c       2003-05-06 15:37:04 +0800
+++ gcc-3.2.3/gcc/ggc-page.c       2003-05-06 15:37:54 +0800
@@ -495,28 +495,35 @@
     }
   printf ("NULL\n");
   fflush (stdout);
 }
 
+static char *last_allocated_page = NULL;
+
 #ifdef USING_MMAP
 /* Allocate SIZE bytes of anonymous memory, preferably near PREF,
    (if non-null).  The ifdef structure here is intended to cause a
    compile error unless exactly one of the HAVE_* is defined.  */
 
 static inline char *
 alloc_anon (pref, size)
      char *pref ATTRIBUTE_UNUSED;
      size_t size;
 {
+  char *page;
+
+  do {
 #ifdef HAVE_MMAP_ANON
-  char *page = (char *) mmap (pref, size, PROT_READ | PROT_WRITE,
-			      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  page = (char *) mmap (pref, size, PROT_READ | PROT_WRITE,
+		        MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 #endif
 #ifdef HAVE_MMAP_DEV_ZERO
-  char *page = (char *) mmap (pref, size, PROT_READ | PROT_WRITE,
-			      MAP_PRIVATE, G.dev_zero_fd, 0);
+  page = (char *) mmap (pref, size, PROT_READ | PROT_WRITE,
+	 	        MAP_PRIVATE, G.dev_zero_fd, 0);
 #endif
+  } while (page == last_allocated_page);
+  last_allocated_page = page;
 
   if (page == (char *) MAP_FAILED)
     {
       perror ("virtual memory exhausted");
       exit (FATAL_EXIT_CODE);
--- gcc-3.2.3.orig/gcc/fixinc/gnu-regex.c	2003-05-06 15:37:04 +0800
+++ gcc-3.2.3/gcc/fixinc/gnu-regex.c	2003-05-06 15:37:42 +0800
@@ -5718,11 +5718,11 @@
   if (errbuf_size != 0)
     {
       if (msg_size > errbuf_size)
         {
 #if defined HAVE_MEMPCPY || defined _LIBC
-	  *((char *) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
+	  *((char *) mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
 #else
           memcpy (errbuf, msg, errbuf_size - 1);
           errbuf[errbuf_size - 1] = 0;
 #endif
         }



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