configure.ac (__libc_freeres): Look for it.
2006-11-06 Frank Ch. Eigler <fche@redhat.com> * configure.ac (__libc_freeres): Look for it. * mf-impl.h (call_libc_freeres): New configuration flag. * mf-runtime.c (__mf_set_default_options): Set it by default. (__mfu_report): Call it if needed. (__mfu_unregister): Remove "unaccessed registered object" warning. * configure, config.h.in: Regenerated. From-SVN: r118523
This commit is contained in:
Frank Ch. Eigler
Frank Ch. Eigler
parent
8f75f38989
commit
a548d7b753
6 changed files with 143 additions and 2 deletions
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@ -1,3 +1,12 @@
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2006-11-06 Frank Ch. Eigler <fche@redhat.com>
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* configure.ac (__libc_freeres): Look for it.
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* mf-impl.h (call_libc_freeres): New configuration flag.
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* mf-runtime.c (__mf_set_default_options): Set it by default.
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(__mfu_report): Call it if needed.
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(__mfu_unregister): Remove "unaccessed registered object" warning.
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* configure, config.h.in: Regenerated.
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2006-09-18 Tom Tromey <tromey@redhat.com>
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* configure: Rebuilt.
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@ -243,6 +243,9 @@
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/* Define to 1 if you have the `__ctype_toupper_loc' function. */
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#undef HAVE___CTYPE_TOUPPER_LOC
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/* Define to 1 if you have the `__libc_freeres' function. */
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#undef HAVE___LIBC_FREERES
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/* Name of package */
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#undef PACKAGE
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104
libmudflap/configure
vendored
104
libmudflap/configure
vendored
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@ -4940,6 +4940,108 @@ fi
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done
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for ac_func in __libc_freeres
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do
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as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
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echo "$as_me:$LINENO: checking for $ac_func" >&5
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echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
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if eval "test \"\${$as_ac_var+set}\" = set"; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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For example, HP-UX 11i <limits.h> declares gettimeofday. */
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#define $ac_func innocuous_$ac_func
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $ac_func (); below.
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Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
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<limits.h> exists even on freestanding compilers. */
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#ifdef __STDC__
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# include <limits.h>
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#else
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# include <assert.h>
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#endif
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#undef $ac_func
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/* Override any gcc2 internal prototype to avoid an error. */
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* We use char because int might match the return type of a gcc2
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builtin and then its argument prototype would still apply. */
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char $ac_func ();
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/* The GNU C library defines this for functions which it implements
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to always fail with ENOSYS. Some functions are actually named
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something starting with __ and the normal name is an alias. */
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#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
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choke me
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#else
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char (*f) () = $ac_func;
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#endif
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#ifdef __cplusplus
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}
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#endif
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int
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main ()
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{
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return f != $ac_func;
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_c_werror_flag"
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|| test ! -s conftest.err'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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eval "$as_ac_var=yes"
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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eval "$as_ac_var=no"
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fi
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rm -f conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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fi
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echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
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echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
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if test `eval echo '${'$as_ac_var'}'` = yes; then
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cat >>confdefs.h <<_ACEOF
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#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
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_ACEOF
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fi
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done
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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@ -5849,7 +5951,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
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case $host in
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*-*-irix6*)
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# Find out which ABI we are using.
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echo '#line 5852 "configure"' > conftest.$ac_ext
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echo '#line 5954 "configure"' > conftest.$ac_ext
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if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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(eval $ac_compile) 2>&5
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ac_status=$?
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@ -75,6 +75,7 @@ AC_CHECK_FUNCS(getservent getservbyname getservbyport getaddrinfo gai_strerror)
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AC_CHECK_FUNCS(getprotoent getprotobyname getprotobynumber)
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AC_CHECK_FUNCS(getmntent setmntent addmntent)
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AC_CHECK_FUNCS(inet_ntoa mmap munmap)
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AC_CHECK_FUNCS(__libc_freeres)
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/ipc.h>
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@ -134,6 +134,11 @@ struct __mf_options
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/* Print list of leaked heap objects on shutdown. */
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unsigned print_leaks;
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#ifdef HAVE___LIBC_FREERES
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/* Call __libc_freeres before leak analysis. */
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unsigned call_libc_freeres;
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#endif
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/* Detect reads of uninitialized objects. */
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unsigned check_initialization;
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@ -1,5 +1,5 @@
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/* Mudflap: narrow-pointer bounds-checking by tree rewriting.
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Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
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Contributed by Frank Ch. Eigler <fche@redhat.com>
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and Graydon Hoare <graydon@redhat.com>
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Splay Tree code originally by Mark Mitchell <mark@markmitchell.com>,
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@ -300,6 +300,9 @@ __mf_set_default_options ()
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__mf_opts.timestamps = 1;
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__mf_opts.mudflap_mode = mode_check;
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__mf_opts.violation_mode = viol_nop;
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#ifdef HAVE___LIBC_FREERES
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__mf_opts.call_libc_freeres = 1;
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#endif
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__mf_opts.heur_std_data = 1;
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#ifdef LIBMUDFLAPTH
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__mf_opts.thread_stack = 0;
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@ -365,6 +368,11 @@ options [] =
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{"print-leaks",
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"print any memory leaks at program shutdown",
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set_option, 1, &__mf_opts.print_leaks},
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#ifdef HAVE___LIBC_FREERES
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{"libc-freeres",
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"call glibc __libc_freeres at shutdown for better leak data",
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set_option, 1, &__mf_opts.call_libc_freeres},
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#endif
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{"check-initialization",
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"detect uninitialized object reads",
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set_option, 1, &__mf_opts.check_initialization},
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@ -1323,10 +1331,15 @@ __mfu_unregister (void *ptr, size_t sz, int type)
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(old_obj->type == __MF_TYPE_HEAP
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|| old_obj->type == __MF_TYPE_HEAP_I))
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{
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/* The problem with a warning message here is that we may not
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be privy to accesses to such objects that occur within
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uninstrumented libraries. */
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#if 0
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fprintf (stderr,
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"*******\n"
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"mudflap warning: unaccessed registered object:\n");
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__mf_describe_object (old_obj);
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#endif
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}
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}
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@ -1855,6 +1868,14 @@ __mfu_report ()
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/* Free up any remaining alloca()'d blocks. */
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__mf_wrap_alloca_indirect (0);
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#ifdef HAVE___LIBC_FREERES
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if (__mf_opts.call_libc_freeres)
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{
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extern void __libc_freeres (void);
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__libc_freeres ();
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}
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#endif
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__mf_describe_object (NULL); /* Reset description epoch. */
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l = __mf_report_leaks ();
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fprintf (stderr, "number of leaked objects: %u\n", l);
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