glibc/sysdeps/unix/sysv/linux/tile/bits/libc-vdso.h
Chris Metcalf 7ea793f39c tile: check error properly for vDSO calls
The tile vDSO vsyscalls were not properly setting the error value.
Conventionally, tile returns the same "non-negative success, negative
errno" value that x86 does (in r0), but it also returns "zero or positive
errno" in r1, which is what the regular syscall code checks.  This change
uses that convention for the vDSO calls as well.
2015-01-05 12:06:15 -05:00

41 lines
1.3 KiB
C

/* Resolve function pointers to VDSO functions.
Copyright (C) 2012-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _LIBC_VDSO_H
#define _LIBC_VDSO_H
#ifdef SHARED
struct syscall_return_value
{
long int value;
long int error;
};
extern struct syscall_return_value (*__vdso_gettimeofday) (struct timeval *,
void *)
attribute_hidden;
extern struct syscall_return_value (*__vdso_clock_gettime) (clockid_t,
struct timespec *);
#endif
#endif /* _LIBC_VDSO_H */