Re: [PATCH] uapi: Make __{u,s}64 match {u,}int64_t in userspace
From: Zack Weinberg <hidden>
Date: 2021-12-02 20:48:52
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linux-arch, lkml, ltp
On Thu, Dec 2, 2021, at 10:01 AM, David Howells via Libc-alpha wrote:
Zack Weinberg [off-list ref] wrote:quoted
I could be persuaded otherwise with an example of a program for which changing __s64 from 'long long' to 'long' would break *binary* backward compatibility, or similarly for __u64.C++ could break.
That's too hypothetical to be actionable. I would like to see a _specific program_, and I would like it to be one that already exists in the world and was not written as a test case for this hypothetical ABI break. zw