libc
/* $Id$ */
/* Copyright (c) 2012-2017 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
.text
/* FreeBSD, Linux, NetBSD, OpenBSD */
#if defined(__FreeBSD__) || defined(__linux__) || defined(__NetBSD__) \
|| defined(__OpenBSD__)
# if defined(__amd64__)
__syscall:
push %rdi
push %rsi
push %rax
push %rcx
push %rdx
push %r8
push %r9
push %r10
push %r11
mov %rcx, %r8
mov %rdx, %rcx
mov %rsi, %rdx
mov %rdi, %rsi
mov %rax, %rdi
call analyze@PLT
pop %r11
pop %r10
pop %r9
pop %r8
pop %rdx
pop %rcx
pop %rax
pop %rsi
pop %rdi
jmp _syscall@PLT
# define SYSCALL(name) \
.global name; \
.type name,@function; \
name:; \
mov $SYS_ ## name, %rax; \
jmp __syscall@PLT
# elif defined(__i386__)
__syscall:
push %eax
/* FIXME also implement further parameters */
call analyze
pop %eax
jmp _syscall
# define SYSCALL(name) \
.global name; \
.type name,@function; \
name:; \
mov $SYS_ ## name, %eax; \
jmp __syscall
# else
# warning Unsupported architecture
# endif
#else
# warning Unsupported platform
#endif
#include "../src/syscalls.S"
/* platform-specific fixes */
/* NetBSD */
#if defined(__NetBSD__)
# if defined(__amd64__)
/* fstat */
.global __fstat50
.type __fstat50,@function
__fstat50:
mov $SYS_fstat, %rax
jmp __syscall@PLT
/* lstat */
.global __lstat50
.type __lstat50,@function
__lstat50:
mov $SYS_lstat, %rax
jmp __syscall@PLT
/* stat */
.global __stat50
.type __stat50,@function
__stat50:
mov $SYS_stat, %rax
jmp __syscall@PLT
# elif defined(__i386__)
/* fstat */
.global __fstat50
.type __fstat50,@function
__fstat50:
mov $SYS_fstat, %eax
jmp __syscall
/* lstat */
.global __lstat50
.type __lstat50,@function
__lstat50:
mov $SYS_lstat, %eax
jmp __syscall
/* stat */
.global __stat50
.type __stat50,@function
__stat50:
mov $SYS_stat, %eax
jmp __syscall
# endif
#endif