diff options
Diffstat (limited to 'arch/x86/um/sys_call_table_32.c')
-rw-r--r-- | arch/x86/um/sys_call_table_32.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c new file mode 100644 index 0000000000..89df5d89d6 --- /dev/null +++ b/arch/x86/um/sys_call_table_32.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 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 <asm/syscall.h> + +/* + * 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 __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native) + +#define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); +#include <asm/syscalls_32.h> + +#undef __SYSCALL +#define __SYSCALL(nr, sym) 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 = { +#include <asm/syscalls_32.h> +}; + +int syscall_table_size = sizeof(sys_call_table); |