Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * syscall_wrapper.h - powerpc specific wrappers to syscall definitions |
| 4 | * |
| 5 | * Based on arch/{x86,arm64}/include/asm/syscall_wrapper.h |
| 6 | */ |
| 7 | |
| 8 | #ifndef __ASM_POWERPC_SYSCALL_WRAPPER_H |
| 9 | #define __ASM_POWERPC_SYSCALL_WRAPPER_H |
| 10 | |
| 11 | struct pt_regs; |
| 12 | |
| 13 | #define SC_POWERPC_REGS_TO_ARGS(x, ...) \ |
| 14 | __MAP(x,__SC_ARGS \ |
| 15 | ,,regs->gpr[3],,regs->gpr[4],,regs->gpr[5] \ |
| 16 | ,,regs->gpr[6],,regs->gpr[7],,regs->gpr[8]) |
| 17 | |
| 18 | #define __SYSCALL_DEFINEx(x, name, ...) \ |
| 19 | long sys##name(const struct pt_regs *regs); \ |
| 20 | ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ |
| 21 | static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ |
| 22 | static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ |
| 23 | long sys##name(const struct pt_regs *regs) \ |
| 24 | { \ |
| 25 | return __se_sys##name(SC_POWERPC_REGS_TO_ARGS(x,__VA_ARGS__)); \ |
| 26 | } \ |
| 27 | static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ |
| 28 | { \ |
| 29 | long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ |
| 30 | __MAP(x,__SC_TEST,__VA_ARGS__); \ |
| 31 | __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ |
| 32 | return ret; \ |
| 33 | } \ |
| 34 | static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) |
| 35 | |
| 36 | #define SYSCALL_DEFINE0(sname) \ |
| 37 | SYSCALL_METADATA(_##sname, 0); \ |
| 38 | long sys_##sname(const struct pt_regs *__unused); \ |
| 39 | ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ |
| 40 | long sys_##sname(const struct pt_regs *__unused) |
| 41 | |
| 42 | #define COND_SYSCALL(name) \ |
| 43 | long sys_##name(const struct pt_regs *regs); \ |
| 44 | long __weak sys_##name(const struct pt_regs *regs) \ |
| 45 | { \ |
| 46 | return sys_ni_syscall(); \ |
| 47 | } |
| 48 | |
| 49 | #endif // __ASM_POWERPC_SYSCALL_WRAPPER_H |
| 50 |
Warning: This file is not a C or C++ file. It does not have highlighting.