Re: [Mspgcc-users] Steve, cc1: Segmentation fault win98 path?

[Steve Underwood]

Yvan Castilloux wrote:

Hey Steve,

You mentioned that you developped a patch that fixes the c...(Segmentation fault) on Win98.... Yet, I don't see it anywhere on this site... Is it available anywhere?

Thank you,

Yvan

This is the patch I used.

Regards,
Steve


--- 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

        }