[Bug libc/779] New: no ptmalloc_init in public_mTRIm

[Bug libc/779] New: no ptmalloc_init in public_mTRIm

[mwdalton at stanford dot edu]

public_mTRIm()erroneously contains no code for initializing malloc's 
data structures if it is the first malloc-related function called.  A 
simple test wherein malloc_trim() is called before any other memory 
allocation function should verify that this causes a program crash. 
The proper fix would appear to be just adding a simple 
if(__malloc_initialized < 0) ptmalloc_init (); 
at the beginning of public_mTRIm(). I'm not sure if these functions are
supported, but public_iCOMALLOc and public_iCALLOc also have the
same bug. Thanks for your help

Mike

-- 
           Summary: no ptmalloc_init in public_mTRIm
           Product: glibc
           Version: 2.3.3
            Status: NEW
          Severity: minor
          Priority: P2
         Component: libc
        AssignedTo: gotom at debian dot or dot jp
        ReportedBy: mwdalton at stanford dot edu
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: linux/i386
  GCC host triplet: linux/i386
GCC target triplet: linux/i386


http://sources.redhat.com/bugzilla/show_bug.cgi?id=779

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/779] no ptmalloc_init in public_mTRIm

[mwdalton at stanford dot edu]

------- Additional Comments From mwdalton at stanford dot edu  2005-03-06 09:46 -------
Created an attachment (id=430)
 --> (http://sources.redhat.com/bugzilla/attachment.cgi?id=430&action=view)
Test case demonstrating mtrim bug

Swap the malloc and the mtrim and the program works fine

-- 


http://sources.redhat.com/bugzilla/show_bug.cgi?id=779

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/779] no ptmalloc_init in public_mTRIm

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-18 02:46 -------
Subject: Bug 779

CVSROOT:	/cvs/glibc
Module name:	libc
Branch: 	glibc-2_3-branch
Changes by:	roland@sources.redhat.com	2005-07-18 02:46:04

Modified files:
	malloc         : malloc.c 

Log message:
	2005-03-15  Jakub Jelinek  <jakub@redhat.com>
	
	[BZ #779]
	* malloc/malloc.c (public_mTRIm): Initialize malloc if not yet
	initialized.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/malloc/malloc.c.diff?cvsroot=glibc&only_with_tag=glibc-2_3-branch&r1=1.142&r2=1.142.2.1



-- 


http://sources.redhat.com/bugzilla/show_bug.cgi?id=779

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.

[Bug libc/779] no ptmalloc_init in public_mTRIm

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2005-09-27 01:47 -------
Also fixed on the branch.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=779

------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.