1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c 4*4882a593Smuzhiyun * with some changes for UML. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <linux/linkage.h> 8*4882a593Smuzhiyun #include <linux/sys.h> 9*4882a593Smuzhiyun #include <linux/cache.h> 10*4882a593Smuzhiyun #include <asm/unistd.h> 11*4882a593Smuzhiyun #include <asm/syscall.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define __NO_STUBS 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * Below you can see, in terms of #define's, the differences between the x86-64 17*4882a593Smuzhiyun * and the UML syscall table. 18*4882a593Smuzhiyun */ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* Not going to be implemented by UML, since we have no hardware. */ 21*4882a593Smuzhiyun #define sys_iopl sys_ni_syscall 22*4882a593Smuzhiyun #define sys_ioperm sys_ni_syscall 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define sys_vm86old sys_ni_syscall 25*4882a593Smuzhiyun #define sys_vm86 sys_ni_syscall 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #define old_mmap sys_old_mmap 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #define __SYSCALL_I386(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; 30*4882a593Smuzhiyun #include <asm/syscalls_32.h> 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #undef __SYSCALL_I386 33*4882a593Smuzhiyun #define __SYSCALL_I386(nr, sym) [ nr ] = sym, 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = { 38*4882a593Smuzhiyun /* 39*4882a593Smuzhiyun * Smells like a compiler bug -- it doesn't work 40*4882a593Smuzhiyun * when the & below is removed. 41*4882a593Smuzhiyun */ 42*4882a593Smuzhiyun [0 ... __NR_syscall_max] = &sys_ni_syscall, 43*4882a593Smuzhiyun #include <asm/syscalls_32.h> 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun int syscall_table_size = sizeof(sys_call_table); 47