segfault with static programs that don't use stdio functions

Rob Landley rob at
Thu Dec 11 02:10:51 UTC 2008

On Wednesday 10 December 2008 08:57:30 Tino Keitel wrote:
> Hi,
> as the bug tracker is down, I try it here.
> I discovered that all statically linked programs without stdio usage
> segfault with uclibc 0.9.29 and later. Here is the example program I
> I got this segfault with uclibc 0.9.29 and gcc 4.1 first. It happens on
> i386, but not on big endian ARM. Here is the procedure how I tracked
> this down with buildroot from latest git, using uclibc 0.9.30 and gcc
> 4.3.2:

I haven't seen it in 0.9.30, but then I'm using gcc 4.1 not 4.3.

The patch I used to fix it for 0.9.29 with 4.1 is attached.  (The gcc 
./configure step creates a "void main(void) {}" and compiles and runs it as a 
sanity test for the compiler, which segfaulted with stock uClibc 0.9.29 but 
works fine for me out of the box with 0.9.30.)

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