1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c 4 * with some changes for UML. 5 */ 6 7 #include <linux/linkage.h> 8 #include <linux/sys.h> 9 #include <linux/cache.h> 10 #include <asm/unistd.h> 11 #include <asm/syscall.h> 12 13 #define __NO_STUBS 14 15 /* 16 * Below you can see, in terms of #define's, the differences between the x86-64 17 * and the UML syscall table. 18 */ 19 20 /* Not going to be implemented by UML, since we have no hardware. */ 21 #define sys_iopl sys_ni_syscall 22 #define sys_ioperm sys_ni_syscall 23 24 #define sys_vm86old sys_ni_syscall 25 #define sys_vm86 sys_ni_syscall 26 27 #define old_mmap sys_old_mmap 28 29 #define __SYSCALL_I386(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; 30 #include <asm/syscalls_32.h> 31 32 #undef __SYSCALL_I386 33 #define __SYSCALL_I386(nr, sym) [ nr ] = sym, 34 35 extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); 36 37 const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = { 38 /* 39 * Smells like a compiler bug -- it doesn't work 40 * when the & below is removed. 41 */ 42 [0 ... __NR_syscall_max] = &sys_ni_syscall, 43 #include <asm/syscalls_32.h> 44 }; 45 46 int syscall_table_size = sizeof(sys_call_table); 47