mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
8210efcb15
Add a __SYSCALL_COMMON() macro to the syscall table, which simplifies syscalltbl.sh. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200313195144.164260-12-brgerst@gmail.com
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* System call table for UML/x86-64, copied from arch/x86/kernel/syscall_*.c
|
|
* with some changes for UML.
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/sys.h>
|
|
#include <linux/cache.h>
|
|
#include <asm/unistd.h>
|
|
#include <asm/syscall.h>
|
|
|
|
#define __NO_STUBS
|
|
|
|
/*
|
|
* Below you can see, in terms of #define's, the differences between the x86-64
|
|
* and the UML syscall table.
|
|
*/
|
|
|
|
/* Not going to be implemented by UML, since we have no hardware. */
|
|
#define sys_iopl sys_ni_syscall
|
|
#define sys_ioperm sys_ni_syscall
|
|
|
|
/*
|
|
* The UML TLS problem. Note that x86_64 does not implement this, so the below
|
|
* is needed only for the ia32 compatibility.
|
|
*/
|
|
|
|
/* On UML we call it this way ("old" means it's not mmap2) */
|
|
#define sys_mmap old_mmap
|
|
|
|
#define stub_clone sys_clone
|
|
#define stub_fork sys_fork
|
|
#define stub_vfork sys_vfork
|
|
#define stub_execve sys_execve
|
|
#define stub_execveat sys_execveat
|
|
#define stub_rt_sigreturn sys_rt_sigreturn
|
|
|
|
#define __SYSCALL_X32(nr, sym)
|
|
#define __SYSCALL_COMMON(nr, sym) __SYSCALL_64(nr, sym)
|
|
|
|
#define __SYSCALL_64(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
|
|
#include <asm/syscalls_64.h>
|
|
|
|
#undef __SYSCALL_64
|
|
#define __SYSCALL_64(nr, sym) [ nr ] = sym,
|
|
|
|
extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
|
|
|
|
const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
|
|
/*
|
|
* Smells like a compiler bug -- it doesn't work
|
|
* when the & below is removed.
|
|
*/
|
|
[0 ... __NR_syscall_max] = &sys_ni_syscall,
|
|
#include <asm/syscalls_64.h>
|
|
};
|
|
|
|
int syscall_table_size = sizeof(sys_call_table);
|