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RISC-V: Linux Syscall Interface

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Contains the Linux system call interface, as well as the definitions of
a handful of system calls.

2018-01-29  Palmer Dabbelt  <palmer@sifive.com>

        * sysdeps/riscv/nptl/nptl-sysdep.S: New file.
        * sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
        * sysdeps/unix/sysv/linux/riscv/clone.S: Likewise.
        * sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise.
        * sysdeps/unix/sysv/linux/riscv/pt-vfork.S: Likewise.
        * sysdeps/unix/sysv/linux/riscv/syscall.c: Likewise.
        * sysdeps/unix/sysv/linux/riscv/sysdep.S: Likewise.
        * sysdeps/unix/sysv/linux/riscv/sysdep.h: Likewise.
        * sysdeps/unix/sysv/linux/riscv/vfork.S: Likewise.
This commit is contained in:
Palmer Dabbelt
2018-01-29 10:27:52 -08:00
parent d1c09b2471
commit 36960f0c76
10 changed files with 610 additions and 0 deletions
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sysdeps/unix/sysv/linux/riscv/syscall.c Normal file
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/* system call interface. Linux/RISC-V version.
Copyright (C) 2001-2018 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/>. */
#include <sysdep.h>
long int
syscall (long int syscall_number, long int arg1, long int arg2, long int arg3,
long int arg4, long int arg5, long int arg6, long int arg7)
{
long int ret;
INTERNAL_SYSCALL_DECL (err);
ret = INTERNAL_SYSCALL_NCS (syscall_number, err, 7, arg1, arg2, arg3, arg4,
arg5, arg6, arg7);
if (INTERNAL_SYSCALL_ERROR_P (ret, err))
return __syscall_error (ret);
return ret;
}