mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 05:51:10 +00:00
bc2eb9321e
With all Linux ABIs using the expected Linux kABI to indicate syscalls errors, the INTERNAL_SYSCALL_DECL is an empty declaration on all ports. This patch removes the 'err' argument on INTERNAL_SYSCALL* macro and remove the INTERNAL_SYSCALL_DECL usage. Checked with a build against all affected ABIs.
57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/* vDSO common definition for Linux.
|
|
Copyright (C) 2015-2020 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef SYSDEP_VDSO_LINUX_H
|
|
# define SYSDEP_VDSO_LINUX_H
|
|
|
|
#include <ldsodefs.h>
|
|
|
|
#ifndef INTERNAL_VSYSCALL_CALL
|
|
# define INTERNAL_VSYSCALL_CALL(funcptr, nr, args...) \
|
|
funcptr (args)
|
|
#endif
|
|
|
|
#define INLINE_VSYSCALL(name, nr, args...) \
|
|
({ \
|
|
__label__ out; \
|
|
__label__ iserr; \
|
|
long int sc_ret; \
|
|
\
|
|
__typeof (GLRO(dl_vdso_##name)) vdsop = GLRO(dl_vdso_##name); \
|
|
if (vdsop != NULL) \
|
|
{ \
|
|
sc_ret = INTERNAL_VSYSCALL_CALL (vdsop, nr, ##args); \
|
|
if (!INTERNAL_SYSCALL_ERROR_P (sc_ret)) \
|
|
goto out; \
|
|
if (INTERNAL_SYSCALL_ERRNO (sc_ret) != ENOSYS) \
|
|
goto iserr; \
|
|
} \
|
|
\
|
|
sc_ret = INTERNAL_SYSCALL_CALL (name, ##args); \
|
|
if (INTERNAL_SYSCALL_ERROR_P (sc_ret)) \
|
|
{ \
|
|
iserr: \
|
|
__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret)); \
|
|
sc_ret = -1L; \
|
|
} \
|
|
out: \
|
|
sc_ret; \
|
|
})
|
|
|
|
#endif /* SYSDEP_VDSO_LINUX_H */
|