* posix/regcomp.c (re_comp): Call __regfree on re_comp_buf.

	(free_mem): New function.
	* posix/Makefile (tests): Add bug-regex14.  Add bug-regex14-mem
	if not cross compiling.
	(generated): Add bug-regex14-mem and bug-regex14.mtrace.
	(bug-regex14-ENV): Set.
	(bug-regex14-mem): New target.
	* posix/bug-regex14.c: New file.

	* elf/Makefile ($(objpfx)librtld.map): Use temporary file for output
	target, so we don't touch it when the link fails.

3 files changed, 85 insertions, 4 deletions

diff --git a/posix/Makefile b/posix/Makefile
index 0062d982fb..37f6eccd19 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -75,7 +75,7 @@ tests		:= tstgetopt testfnm runtests runptests	     \
 		   tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \
 		   tst-gnuglob tst-regex bug-regex5 bug-regex6 bug-regex7 \
 		   bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \
-		   bug-regex13
+		   bug-regex13 bug-regex14
 ifeq (yes,$(build-shared))
 test-srcs	:= globtest
 tests           += wordexp-test tst-exec tst-spawn
@@ -89,7 +89,8 @@ before-compile	:= testcases.h ptestcases.h
 # So they get cleaned up.
 generated := $(addprefix wordexp-test-result, 1 2 3 4 5 6 7 8 9 10) \
 	     annexc annexc.out wordexp-tst.out bug-regex2-mem \
-	     bug-regex2.mtrace tst-getconf.out
+	     bug-regex2.mtrace bug-regex14-mem bug-regex14.mtrace \
+	     tst-getconf.out
 
 include ../Rules
 
@@ -149,7 +150,7 @@ endif
 # XXX Please note that for now we ignore the result of this test.
 tests: $(objpfx)annexc.out
 ifeq (no,$(cross-compiling))
-tests:$(objpfx)bug-regex2-mem $(objpfx)tst-getconf.out
+tests:$(objpfx)bug-regex2-mem $(objpfx)bug-regex14-mem $(objpfx)tst-getconf.out
 endif
 
 $(objpfx)annexc.out: $(objpfx)annexc
@@ -165,6 +166,11 @@ bug-regex2-ENV = MALLOC_TRACE=$(objpfx)bug-regex2.mtrace
 $(objpfx)bug-regex2-mem: $(objpfx)bug-regex2.out
 	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex2.mtrace > $@
 
+bug-regex14-ENV = MALLOC_TRACE=$(objpfx)bug-regex14.mtrace
+
+$(objpfx)bug-regex14-mem: $(objpfx)bug-regex14.out
+	$(common-objpfx)malloc/mtrace $(objpfx)bug-regex14.mtrace > $@
+
 $(objpfx)tst-getconf.out: tst-getconf.sh $(objpfx)getconf
 	$(SHELL) -e $< $(common-objpfx) $(elf-objpfx) $(rtld-installed-name)
 
diff --git a/posix/bug-regex14.c b/posix/bug-regex14.c
new file mode 100644
index 0000000000..91ff32a747
--- /dev/null
+++ b/posix/bug-regex14.c
@@ -0,0 +1,54 @@
+/* Tests re_comp and re_exec.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define _REGEX_RE_COMP
+#include <sys/types.h>
+#include <mcheck.h>
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main (void)
+{
+  const char *err;
+  size_t i;
+  int ret = 0;
+
+  mtrace ();
+
+  for (i = 0; i < 100; ++i)
+    {
+      err = re_comp ("a t.st");
+      if (err)
+	{
+	  printf ("re_comp failed: %s\n", err);
+	  ret = 1;
+	}
+
+      if (! re_exec ("This is a test."))
+	{
+	  printf ("re_exec failed\n");
+	  ret = 1;
+	}
+    }
+
+  return ret;
+}
diff --git a/posix/regcomp.c b/posix/regcomp.c
index 497d1301df..9bb06aa7bf 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -653,6 +653,7 @@ re_comp (s)
      const char *s;
 {
   reg_errcode_t ret;
+  char *fastmap;
 
   if (!s)
     {
@@ -661,7 +662,17 @@ re_comp (s)
       return 0;
     }
 
-  if (!re_comp_buf.buffer)
+  if (re_comp_buf.buffer)
+    {
+      fastmap = re_comp_buf.fastmap;
+      re_comp_buf.fastmap = NULL;
+      __regfree (&re_comp_buf);
+      re_comp_buf.buffer = NULL;
+      re_comp_buf.allocated = 0;
+      re_comp_buf.fastmap = fastmap;
+    }
+
+  if (re_comp_buf.fastmap == NULL)
     {
       re_comp_buf.fastmap = (char *) malloc (SBC_MAX);
       if (re_comp_buf.fastmap == NULL)
@@ -683,6 +694,16 @@ re_comp (s)
   /* Yes, we're discarding `const' here if !HAVE_LIBINTL.  */
   return (char *) gettext (__re_error_msgid + __re_error_msgid_idx[(int) ret]);
 }
+
+#ifdef _LIBC
+static void __attribute__ ((unused))
+free_mem (void)
+{
+  __regfree (&re_comp_buf);
+}
+text_set_element (__libc_subfreeres, free_mem);
+#endif
+
 #endif /* _REGEX_RE_COMP */
 
 /* Internal entry point.