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Re: [PATCH] [BZ #19363] Use INTERNAL_SYSCALL_TIMES for Linux times
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Andreas Schwab <schwab at suse dot de>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Tue, 15 Dec 2015 07:48:38 -0800
- Subject: Re: [PATCH] [BZ #19363] Use INTERNAL_SYSCALL_TIMES for Linux times
- Authentication-results: sourceware.org; auth=none
- References: <20151215032733 dot GA14426 at gmail dot com> <mvm37v49itj dot fsf at hawking dot suse dot de> <20151215150001 dot GT11489 at vapier dot lan> <mvmtwnj7ni7 dot fsf at hawking dot suse dot de>
On Tue, Dec 15, 2015 at 7:14 AM, Andreas Schwab <firstname.lastname@example.org> wrote:
> Mike Frysinger <email@example.com> writes:
>> On 15 Dec 2015 10:12, Andreas Schwab wrote:
>>> I think the correct fix is to make all *_SYSCALL macros operate on long
>>> long when handling the syscall return value.
>> i think the concern is about the opposite behavior -- code relying on the
>> value being truncated/extended in most places to 32bits.
> All x86_64 and x32 syscalls return a 64-bit value.
For x86_64 and x32, many, if not most, of system calls return int.
Some returns long. Only 3, lseek, time and times, returns long long.