Commit | Line | Data |
---|---|---|
95906b24 | 1 | /* |
45db1c61 | 2 | * System call table for UML/x86-64, copied from arch/x86/kernel/syscall_*.c |
95906b24 JD |
3 | * with some changes for UML. |
4 | */ | |
80f95078 PBG |
5 | |
6 | #include <linux/linkage.h> | |
7 | #include <linux/sys.h> | |
8 | #include <linux/cache.h> | |
45db1c61 | 9 | #include <generated/user_constants.h> |
034042cc | 10 | #include <asm/syscall.h> |
80f95078 PBG |
11 | |
12 | #define __NO_STUBS | |
13 | ||
95906b24 JD |
14 | /* |
15 | * Below you can see, in terms of #define's, the differences between the x86-64 | |
16 | * and the UML syscall table. | |
17 | */ | |
80f95078 PBG |
18 | |
19 | /* Not going to be implemented by UML, since we have no hardware. */ | |
616ab249 | 20 | #define sys_iopl sys_ni_syscall |
80f95078 PBG |
21 | #define sys_ioperm sys_ni_syscall |
22 | ||
95906b24 JD |
23 | /* |
24 | * The UML TLS problem. Note that x86_64 does not implement this, so the below | |
25 | * is needed only for the ia32 compatibility. | |
26 | */ | |
80f95078 | 27 | |
80f95078 PBG |
28 | /* On UML we call it this way ("old" means it's not mmap2) */ |
29 | #define sys_mmap old_mmap | |
80f95078 PBG |
30 | |
31 | #define stub_clone sys_clone | |
32 | #define stub_fork sys_fork | |
33 | #define stub_vfork sys_vfork | |
34 | #define stub_execve sys_execve | |
27d6ec7a | 35 | #define stub_execveat sys_execveat |
80f95078 PBG |
36 | #define stub_rt_sigreturn sys_rt_sigreturn |
37 | ||
cfcbadb4 | 38 | #define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; |
45db1c61 | 39 | #include <asm/syscalls_64.h> |
80f95078 | 40 | |
45db1c61 | 41 | #undef __SYSCALL_64 |
cfcbadb4 | 42 | #define __SYSCALL_64(nr, sym, qual) [ nr ] = sym, |
80f95078 | 43 | |
eb974c62 | 44 | extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); |
80f95078 | 45 | |
b485342b | 46 | const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = { |
45db1c61 PA |
47 | /* |
48 | * Smells like a compiler bug -- it doesn't work | |
49 | * when the & below is removed. | |
50 | */ | |
51 | [0 ... __NR_syscall_max] = &sys_ni_syscall, | |
52 | #include <asm/syscalls_64.h> | |
80f95078 | 53 | }; |
f87ea91d JD |
54 | |
55 | int syscall_table_size = sizeof(sys_call_table); |