Issue running 32bit code on 64bit system

[db_404]

I have been investigating a glibc emerge issue I am having http://forums.gentoo.org/viewtopic-t-74 ... ight-.html.

However this now seems to be a more general issue with the system. Some simple core

Code: Select all

#include <stdio.h>

int main(int argc,char *argv[]){
	printf("%d\n",sizeof(long double));
}

When compiled 64bit will run OK, but when compiled as 32 bit code (with -m32) I get a segfault upon running.

Any ideas what could cause this? The kernel has 32 bit support built in.

[richard.scott]

Hi,

I think your issue will be the sys-libs/glibc-2.8 installation on 64bit.

I'm having no end of compile issues since upgrading it.

Do you have a 64bit system available with the older glibc-2.6 installed to test?

Rich.

[db_404]

Actually this is an install (upgrade) from a stock 2008 stage 3 (which I think is 2.6.1).

[avendesora]

Using -Wall when you compile your code is always a good idea. You have a format string problem
on 64bit, and you're supposed to return a value from main. Both these issues can cause random behavior I think