Release 4.14 arch/x86/um/sys_call_table_64.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 <generated/user_constants.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_64(nr, sym, qual) 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, qual) [ 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);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Paolo 'Blaisorblade' Giarrusso
77
54.23%
1
8.33%
Andrew Lutomirski
27
19.01%
3
25.00%
H. Peter Anvin
20
14.08%
2
16.67%
Jeff Dike
11
7.75%
2
16.67%
David Drysdale
4
2.82%
1
8.33%
Denys Vlasenko
1
0.70%
1
8.33%
Daniel Borkmann
1
0.70%
1
8.33%
Greg Kroah-Hartman
1
0.70%
1
8.33%
Total
142
100.00%
12
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Directory: arch/x86/um

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