b12bdaf11f
Some syscalls need to access the pt_regs structure, either to copy user register state or to modifiy it. This patch adds stubs to load the address of the pt_regs struct into the %eax register, and changes the syscalls to take the pointer as an argument instead of relying on the assumption that the pt_regs structure overlaps the function arguments. Drop the use of regparm(1) due to concern about gcc bugs, and to move in the direction of the eventual removal of regparm(0) for asmlinkage. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
|
|
* syscalls.h - Linux syscall interfaces (arch-specific)
|
|
*
|
|
* Copyright (c) 2008 Jaswinder Singh
|
|
*
|
|
* This file is released under the GPLv2.
|
|
* See the file COPYING for more details.
|
|
*/
|
|
|
|
#ifndef _ASM_X86_SYSCALLS_H
|
|
#define _ASM_X86_SYSCALLS_H
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/linkage.h>
|
|
#include <linux/types.h>
|
|
#include <linux/signal.h>
|
|
|
|
/* Common in X86_32 and X86_64 */
|
|
/* kernel/ioport.c */
|
|
asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
|
|
|
|
/* kernel/ldt.c */
|
|
asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
|
|
|
|
/* kernel/tls.c */
|
|
asmlinkage int sys_set_thread_area(struct user_desc __user *);
|
|
asmlinkage int sys_get_thread_area(struct user_desc __user *);
|
|
|
|
/* X86_32 only */
|
|
#ifdef CONFIG_X86_32
|
|
/* kernel/process_32.c */
|
|
int sys_fork(struct pt_regs *);
|
|
int sys_clone(struct pt_regs *);
|
|
int sys_vfork(struct pt_regs *);
|
|
int sys_execve(struct pt_regs *);
|
|
|
|
/* kernel/signal_32.c */
|
|
asmlinkage int sys_sigsuspend(int, int, old_sigset_t);
|
|
asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
|
|
struct old_sigaction __user *);
|
|
int sys_sigaltstack(struct pt_regs *);
|
|
unsigned long sys_sigreturn(struct pt_regs *);
|
|
int sys_rt_sigreturn(struct pt_regs *);
|
|
|
|
/* kernel/ioport.c */
|
|
long sys_iopl(struct pt_regs *);
|
|
|
|
/* kernel/sys_i386_32.c */
|
|
asmlinkage long sys_mmap2(unsigned long, unsigned long, unsigned long,
|
|
unsigned long, unsigned long, unsigned long);
|
|
struct mmap_arg_struct;
|
|
asmlinkage int old_mmap(struct mmap_arg_struct __user *);
|
|
struct sel_arg_struct;
|
|
asmlinkage int old_select(struct sel_arg_struct __user *);
|
|
asmlinkage int sys_ipc(uint, int, int, int, void __user *, long);
|
|
struct old_utsname;
|
|
asmlinkage int sys_uname(struct old_utsname __user *);
|
|
struct oldold_utsname;
|
|
asmlinkage int sys_olduname(struct oldold_utsname __user *);
|
|
|
|
/* kernel/vm86_32.c */
|
|
int sys_vm86old(struct pt_regs *);
|
|
int sys_vm86(struct pt_regs *);
|
|
|
|
#else /* CONFIG_X86_32 */
|
|
|
|
/* X86_64 only */
|
|
/* kernel/process_64.c */
|
|
asmlinkage long sys_fork(struct pt_regs *);
|
|
asmlinkage long sys_clone(unsigned long, unsigned long,
|
|
void __user *, void __user *,
|
|
struct pt_regs *);
|
|
asmlinkage long sys_vfork(struct pt_regs *);
|
|
asmlinkage long sys_execve(char __user *, char __user * __user *,
|
|
char __user * __user *,
|
|
struct pt_regs *);
|
|
|
|
/* kernel/ioport.c */
|
|
asmlinkage long sys_iopl(unsigned int, struct pt_regs *);
|
|
|
|
/* kernel/signal_64.c */
|
|
asmlinkage long sys_sigaltstack(const stack_t __user *, stack_t __user *,
|
|
struct pt_regs *);
|
|
asmlinkage long sys_rt_sigreturn(struct pt_regs *);
|
|
|
|
/* kernel/sys_x86_64.c */
|
|
asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
|
|
unsigned long, unsigned long, unsigned long);
|
|
struct new_utsname;
|
|
asmlinkage long sys_uname(struct new_utsname __user *);
|
|
|
|
#endif /* CONFIG_X86_32 */
|
|
#endif /* _ASM_X86_SYSCALLS_H */
|