1 files changed, 0 insertions, 125 deletions
diff --git a/libsigsegv/m4/fault.m4 b/libsigsegv/m4/fault.m4
deleted file mode 100644
index 2dd89f83..00000000
--- a/libsigsegv/m4/fault.m4
+++ /dev/null
@@ -1,125 +0,0 @@
-# fault.m4 serial 5 (libsigsegv-2.2)
-dnl Copyright (C) 2002-2003 Bruno Haible <bruno@clisp.org>
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl How to write a SIGSEGV handler with access to the fault address.
-dnl SV_TRY_FAULT(KIND, CACHESYMBOL, KNOWN-SYSTEMS,
-dnl              INCLUDES, FAULT_HANDLER_ARGLIST, FAULT_ADDRESS, [INSTALLCODE])
-AC_DEFUN([SV_TRY_FAULT], [
-  AC_REQUIRE([AC_PROG_CC])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-
-  AC_CACHE_CHECK([whether a fault handler according to $1 works], [$2], [
-    AC_RUN_IFELSE([
-      AC_LANG_SOURCE([[
-#include <stdlib.h>
-#include <signal.h>
-#if HAVE_SYS_SIGNAL_H
-# include <sys/signal.h>
-#endif
-$4
-#include <sys/types.h>
-#include <sys/mman.h>
-#if HAVE_MMAP_DEVZERO
-# include <fcntl.h>
-# ifndef MAP_FILE
-#  define MAP_FILE 0
-# endif
-#endif
-#ifndef PROT_NONE
-# define PROT_NONE 0
-#endif
-#if HAVE_MMAP_ANON
-# define zero_fd -1
-# define map_flags MAP_ANON | MAP_PRIVATE
-#elif HAVE_MMAP_ANONYMOUS
-# define zero_fd -1
-# define map_flags MAP_ANONYMOUS | MAP_PRIVATE
-#elif HAVE_MMAP_DEVZERO
-static int zero_fd;
-# define map_flags MAP_FILE | MAP_PRIVATE
-#endif
-unsigned long page;
-int handler_called = 0;
-void sigsegv_handler ($5)
-{
-  void *fault_address = (void *) ($6);
-  handler_called++;
-  if (handler_called == 10)
-    exit (4);
-  if (fault_address != (void*)(page + 0x678))
-    exit (3);
-  if (mprotect ((void *) page, 0x10000, PROT_READ | PROT_WRITE) < 0)
-    exit (2);
-}
-void crasher (unsigned long p)
-{
-  *(int *) (p + 0x678) = 42;
-}
-int main ()
-{
-  void *p;
-  struct sigaction action;
-  /* Preparations.  */
-#if !HAVE_MMAP_ANON && !HAVE_MMAP_ANONYMOUS && HAVE_MMAP_DEVZERO
-  zero_fd = open ("/dev/zero", O_RDONLY, 0644);
-#endif
-  /* Setup some mmaped memory.  */
-#ifdef __hpux
-  /* HP-UX 10 mmap() often fails when given a hint.  So give the OS complete
-     freedom about the address range.  */
-  p = mmap ((void *) 0,          0x10000, PROT_READ | PROT_WRITE, map_flags, zero_fd, 0);
-#else
-  p = mmap ((void *) 0x12340000, 0x10000, PROT_READ | PROT_WRITE, map_flags, zero_fd, 0);
-#endif
-  if (p == (void *)(-1))
-    exit (2);
-  page = (unsigned long) p;
-  /* Make it read-only.  */
-  if (mprotect ((void *) page, 0x10000, PROT_READ) < 0)
-    exit (2);
-  /* Install the SIGSEGV handler.  */
-  sigemptyset(&action.sa_mask);
-]m4_if([$7], [], [
-  action.sa_handler = (void (*) (int)) &sigsegv_handler;
-  action.sa_flags = 0;
-], [$7])[
-  sigaction (SIGSEGV, &action, (struct sigaction *) NULL);
-  sigaction (SIGBUS, &action, (struct sigaction *) NULL);
-  /* The first write access should invoke the handler and then complete.  */
-  crasher (page);
-  /* The second write access should not invoke the handler.  */
-  crasher (page);
-  /* Check that the handler was called only once.  */
-  if (handler_called != 1)
-    exit (1);
-  /* Test passed!  */
-  return 0;
-}]])],
-      [$2=yes],
-      [$2=no],
-      [case "$host" in
-         m4_if([$3], [], [], [[$3]) $2=yes ;;])
-         *)
-           AC_LINK_IFELSE([
-             AC_LANG_PROGRAM([[
-#include <signal.h>
-$4
-void sigsegv_handler ($5)
-{
-  void *fault_address = (void *) ($6);
-}
-]],
-               [[struct sigaction action;
-$7]])],
-             [$2="guessing no"],
-             [$2=no])
-           ;;
-       esac
-      ])
-  ])
-])