2004-10-12 Frank Ch. Eigler <fche@redhat.com>

	* configure.ac: Check for more headers, functions.
	* mf-hooks2.c (mkbuffer, unmkbuffer): New helper functions for
	tracking overridden FILE buffers.
	(fopen, setvbuf): New/revised hook functions for buffer overriding.
	(setbuf,setlinebuf,fdopen,freopen,fopen64,freopen64,fclose): Ditto.
	(fflush): Accept given NULL stream (means "all streams").
	* mf-runtime.h.in:
	* mf-runtime.c (__mfu_check): Accept accesses that span adjacent
	HEAP/GUESS objects.
	(LOOKUP_CACHE_SIZE_MAX): Raise to 64K entries tentatively.
	(__mf_adapt_cache): Use them all.
	* testsuite/libmudflap.c/pass35-frag.c: Update warning message.
	* testsuite/libmudflap.c++/ctors.exp: Ditto.
	* testsuite/libmudflap.c/{pass51,pass52}-frag.c: New tests.
	* configure, config.h.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88996 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 113 insertions, 4 deletions

diff --git a/libmudflap/configure b/libmudflap/configure
index 9b838d941af..0b51fe5ae5d 100755
--- a/libmudflap/configure
+++ b/libmudflap/configure
@@ -3597,9 +3597,10 @@ done
 
 
 
+
 for ac_header in stdint.h execinfo.h signal.h dlfcn.h dirent.h pwd.h grp.h \
   netdb.h sys/ipc.h sys/sem.h sys/shm.h sys/wait.h ctype.h mntent.h \
-  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h
+  sys/socket.h netinet/in.h arpa/inet.h dlfcn.h sys/mman.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
@@ -3858,7 +3859,113 @@ done
 
 
 
-for ac_func in fopen64 fseeko64 ftello64 stat64
+
+for ac_func in fopen64 fseeko64 ftello64 stat64 freopen64
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+
+
+
+for ac_func in setbuf setbuffer setlinebuf setvbuf
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -4699,7 +4806,9 @@ fi
 done
 
 
-for ac_func in inet_ntoa
+
+
+for ac_func in inet_ntoa mmap munmap
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -5656,7 +5765,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5659 "configure"' > conftest.$ac_ext
+  echo '#line 5768 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?