Re: dl-load.c (ld.so) bug??

At 00:52 22.06.99 , Troy Benjegerdes wrote:

testcase:

#include <stdio.h>
int main(void){
        char * ptr;
        printf("hello world\n");
        fflush(stdout);
        ptr = (char *)malloc(100);
        free(ptr);
}


compile this with:
gcc test.c -lefence -g -static

On a PPC glibc-2.1 box, this segfaults in dl-load.c:564

On a x86 Red Hat 6.0 system, it works fine (
[troybenj@mos6 troybenj]$ ./a.out

  Electric Fence 2.0.5 Copyright (C) 1987-1998 Bruce Perens.
hello world
[troybenj@mos6 troybenj]$


Either dl-load.c has a serious bug, or ElectricFence is broken on PPC.
I suspect it's the former, and if so, this would explain the weird
segfaults I've been seeing.

Can someone that knows glibc better please confirm or deny this for me?

This bug is fixed already in cvs-glibc. I've put up mostly untested RPMS for a newer glibc under <ftp://dev.linuxppc.org/users/fsirl/R5>.

It might be that the new IP of dev is still not fully propagated, so use 169.207.1.122 directly in that case.

Franz.


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