mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 17:54:13 +08:00
2061f7beaa
Currently we have sys_sigpending and sys_old_getrlimit defined to use
COMPAT_SYS() in systbl.h, but then both are #defined to sys_ni_syscall
in systbl.S.
This seems to have been done when ppc and ppc64 were merged, in commit
9994a33 "Introduce entry_{32,64}.S, misc_{32,64}.S, systbl.S".
AFAICS there's no longer (or never was) any need for this, we can just
use SYSX() for both and remove the #defines to sys_ni_syscall.
The expansion before was:
#define COMPAT_SYS(func) .llong .sys_##func,.compat_sys_##func
#define sys_old_getrlimit sys_ni_syscall
COMPAT_SYS(old_getrlimit)
=>
.llong .sys_old_getrlimit,.compat_sys_old_getrlimit
=>
.llong .sys_ni_syscall,.compat_sys_old_getrlimit
After is:
#define SYSX(f, f3264, f32) .llong .f,.f3264
SYSX(sys_ni_syscall, compat_sys_old_getrlimit, sys_old_getrlimit)
=>
.llong .sys_ni_syscall,.compat_sys_old_getrlimit
ie. they are equivalent.
Finally both COMPAT_SYS() and SYSX() evaluate to sys_ni_syscall in the
Cell SPU code.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
49 lines
1.6 KiB
ArmAsm
49 lines
1.6 KiB
ArmAsm
/*
|
|
* This file contains the table of syscall-handling functions.
|
|
* Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
|
|
*
|
|
* Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
|
|
* and Paul Mackerras.
|
|
*
|
|
* Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
|
|
* PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <asm/ppc_asm.h>
|
|
|
|
#ifdef CONFIG_PPC64
|
|
#define SYSCALL(func) .llong DOTSYM(sys_##func),DOTSYM(sys_##func)
|
|
#define COMPAT_SYS(func) .llong DOTSYM(sys_##func),DOTSYM(compat_sys_##func)
|
|
#define PPC_SYS(func) .llong DOTSYM(ppc_##func),DOTSYM(ppc_##func)
|
|
#define OLDSYS(func) .llong DOTSYM(sys_ni_syscall),DOTSYM(sys_ni_syscall)
|
|
#define SYS32ONLY(func) .llong DOTSYM(sys_ni_syscall),DOTSYM(compat_sys_##func)
|
|
#define SYSX(f, f3264, f32) .llong DOTSYM(f),DOTSYM(f3264)
|
|
#else
|
|
#define SYSCALL(func) .long sys_##func
|
|
#define COMPAT_SYS(func) .long sys_##func
|
|
#define PPC_SYS(func) .long ppc_##func
|
|
#define OLDSYS(func) .long sys_##func
|
|
#define SYS32ONLY(func) .long sys_##func
|
|
#define SYSX(f, f3264, f32) .long f32
|
|
#endif
|
|
#define SYSCALL_SPU(func) SYSCALL(func)
|
|
#define COMPAT_SYS_SPU(func) COMPAT_SYS(func)
|
|
#define PPC_SYS_SPU(func) PPC_SYS(func)
|
|
#define SYSX_SPU(f, f3264, f32) SYSX(f, f3264, f32)
|
|
|
|
.section .rodata,"a"
|
|
|
|
#ifdef CONFIG_PPC64
|
|
.p2align 3
|
|
#endif
|
|
|
|
.globl sys_call_table
|
|
sys_call_table:
|
|
|
|
#include <asm/systbl.h>
|