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Re: PATCH: Check __x86_64__ instead of __WORDSIZE in bits/setjmp.h
- From: Roland McGrath <roland at hack dot frob dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Mon, 19 Mar 2012 15:38:13 -0700 (PDT)
- Subject: Re: PATCH: Check __x86_64__ instead of __WORDSIZE in bits/setjmp.h
- References: <20120319221337.GA13873@intel.com>
> -typedef long int __jmp_buf[8];
> +# if __x86_64__
ifdef
> +typedef long long int __jmp_buf[8];
We need to be very sure this cannot perturb anyone's ABI,
e.g. mangled names and the like.
I'm not aware of any such issue with __jmp_buf in particular, but
we must be circumspect.
Thanks,
Roland