[Bug libmudflap/14588] New: -fmudflap doesn't define MREMAP_MAYMOVE

["wcohen at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Have the following example code:

/* replicate problem observed in
   oprofiles libdb/db_manage.c
   gcc-ssa  -fmudflap -c mudflapx.c
*/
 
#define _GNU_SOURCE
 
#include <unistd.h>
#include <sys/mman.h>
 
 
void *odb_hash_add_node(void *old_address, size_t old_file_size,
                        size_t new_file_size)
{
        void *new_map;
 
        new_map = mremap(old_address, old_file_size, new_file_size, MREMAP_MAYMOVE);
        return new_map;
}


On Red Hat Linux 9 and RHEL 3 the current FSF tree-ssa compiler
(tree-ssa-20020619-branch checked out 2004-03-15) it compiles successfully
without the "-fmudflap", but it fails when compiled with the the "-lmudflap" option:

/home/wcohen/gcc/tree-ssa-20020619-branch/inst/bin/gcc mudflapx.c -fmudflap -c
mudflapx.c: In function `odb_hash_add_node':
mudflapx.c:17: error: `MREMAP_MAYMOVE' undeclared (first use in this function)
mudflapx.c:17: error: (Each undeclared identifier is reported only once
mudflapx.c:17: error: for each function it appears in.)

-- 
           Summary: -fmudflap doesn't define MREMAP_MAYMOVE
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libmudflap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wcohen at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14588