mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 18:41:00 +07:00
0f78ff1711
asmlinkage is no longer required since the syscall ABI is now fully under x86 architecture control. This makes the 32-bit native syscalls a bit more effecient by passing in regs via EAX instead of on the stack. Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net> Reviewed-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20200313195144.164260-18-brgerst@gmail.com
28 lines
740 B
C
28 lines
740 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* System call table for x86-64. */
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/sys.h>
|
|
#include <linux/cache.h>
|
|
#include <linux/syscalls.h>
|
|
#include <asm/unistd.h>
|
|
#include <asm/syscall.h>
|
|
|
|
#define __SYSCALL_X32(nr, sym)
|
|
#define __SYSCALL_COMMON(nr, sym) __SYSCALL_64(nr, sym)
|
|
|
|
#define __SYSCALL_64(nr, sym) extern long __x64_##sym(const struct pt_regs *);
|
|
#include <asm/syscalls_64.h>
|
|
#undef __SYSCALL_64
|
|
|
|
#define __SYSCALL_64(nr, sym) [nr] = __x64_##sym,
|
|
|
|
asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
|
|
/*
|
|
* Smells like a compiler bug -- it doesn't work
|
|
* when the & below is removed.
|
|
*/
|
|
[0 ... __NR_syscall_max] = &__x64_sys_ni_syscall,
|
|
#include <asm/syscalls_64.h>
|
|
};
|