| 1 |
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| 2 | |
| 3 | * syscall_wrapper.h - s390 specific wrappers to syscall definitions
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| 4 | *
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| 5 |
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| 6 |
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| 7 | #ifndef _ASM_S390_SYSCALL_WRAPPER_H
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| 8 | #define _ASM_S390_SYSCALL_WRAPPER_H
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| 9 |
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| 10 |
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| 11 | #define SC_S390_REGS_TO_ARGS(x, ...) \
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| 12 | __MAP(x, __SC_ARGS \
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| 13 | ,, regs->orig_gpr2,, regs->gprs[3],, regs->gprs[4] \
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| 14 | ,, regs->gprs[5],, regs->gprs[6],, regs->gprs[7])
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| 15 |
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| 16 | #define SYSCALL_DEFINE0(sname) \
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| 17 | SYSCALL_METADATA(_##sname, 0); \
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| 18 | long __s390x_sys_##sname(struct pt_regs *__unused); \
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| 19 | ALLOW_ERROR_INJECTION(__s390x_sys_##sname, ERRNO); \
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| 20 | static inline long __do_sys_##sname(void); \
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| 21 | long __s390x_sys_##sname(struct pt_regs *__unused) \
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| 22 | { \
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| 23 | return __do_sys_##sname(); \
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| 24 | } \
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| 25 | static inline long __do_sys_##sname(void)
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| 26 |
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| 27 | #define COND_SYSCALL(name) \
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| 28 | cond_syscall(__s390x_sys_##name)
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| 29 |
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| 30 | #define __S390_SYS_STUBx(x, fullname, name, ...)
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| 31 |
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| 32 | #define __SYSCALL_DEFINEx(x, name, ...) \
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| 33 | long __s390x_sys##name(struct pt_regs *regs); \
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| 34 | ALLOW_ERROR_INJECTION(__s390x_sys##name, ERRNO); \
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| 35 | static inline long __se_sys##name(__MAP(x, __SC_LONG, __VA_ARGS__)); \
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| 36 | static inline long __do_sys##name(__MAP(x, __SC_DECL, __VA_ARGS__)); \
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| 37 | __S390_SYS_STUBx(x, name, __VA_ARGS__); \
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| 38 | long __s390x_sys##name(struct pt_regs *regs) \
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| 39 | { \
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| 40 | return __se_sys##name(SC_S390_REGS_TO_ARGS(x, __VA_ARGS__)); \
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| 41 | } \
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| 42 | static inline long __se_sys##name(__MAP(x, __SC_LONG, __VA_ARGS__)) \
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| 43 | { \
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| 44 | __MAP(x, __SC_TEST, __VA_ARGS__); \
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| 45 | return __do_sys##name(__MAP(x, __SC_CAST, __VA_ARGS__)); \
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| 46 | } \
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| 47 | static inline long __do_sys##name(__MAP(x, __SC_DECL, __VA_ARGS__))
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| 48 |
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| 49 | #endif
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