cregit-Linux how code gets into the kernel

Release 4.11 arch/x86/um/sys_call_table_32.c

Directory: arch/x86/um
/*
 * System call table for UML/i386, 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


#define sys_vm86old sys_ni_syscall

#define sys_vm86 sys_ni_syscall


#define old_mmap sys_old_mmap


#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
#include <asm/syscalls_32.h>


#undef __SYSCALL_I386

#define __SYSCALL_I386(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_32.h>
};


int syscall_table_size = sizeof(sys_call_table);

Overall Contributors

PersonTokensPropCommitsCommitProp
H. Peter Anvin9577.24%337.50%
Andrew Lutomirski2621.14%337.50%
Martin Pelikan10.81%112.50%
Daniel Borkmann10.81%112.50%
Total123100.00%8100.00%
Directory: arch/x86/um
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