Fix FreeBSD failure with recursive malloc call.

* mf-hooks1.c (malloc, calloc, realloc, free,
__mf_wrap_alloca_indirect): Call BEGIN_MALLOC_PROTECT before calling
the real routines, and END_MALLOC_PROTECT afterwards.
* mf-impl.h (enum __mf_state_enum): Expand comment.  Add in_malloc.
(BEGIN_PROTECT): Handle in_malloc state.
(BEGIN_MALLOC_PROTECT, END_MALLOC_PROTECT): New.
* testsuite/libmudflap.c/hook2-allocstuff.c: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@103256 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 0 deletions

diff --git a/libmudflap/testsuite/libmudflap.c/hook2-allocstuff.c b/libmudflap/testsuite/libmudflap.c/hook2-allocstuff.c
new file mode 100644
index 00000000000..d8fbec4676d
--- /dev/null
+++ b/libmudflap/testsuite/libmudflap.c/hook2-allocstuff.c
@@ -0,0 +1,9 @@
+/* Generates recursive malloc call on i386-freebsd4.10 with -fmudflap.  */
+#include <stdlib.h>
+
+int
+main (void)
+{
+  char *p = malloc (1<<24);
+  return 0;
+}