50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* syscall_wrapper.h - powerpc specific wrappers to syscall definitions
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*
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* Based on arch/{x86,arm64}/include/asm/syscall_wrapper.h
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*/
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#ifndef __ASM_POWERPC_SYSCALL_WRAPPER_H
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#define __ASM_POWERPC_SYSCALL_WRAPPER_H
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struct pt_regs;
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#define SC_POWERPC_REGS_TO_ARGS(x, ...) \
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__MAP(x,__SC_ARGS \
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,,regs->gpr[3],,regs->gpr[4],,regs->gpr[5] \
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,,regs->gpr[6],,regs->gpr[7],,regs->gpr[8])
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#define __SYSCALL_DEFINEx(x, name, ...) \
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long sys##name(const struct pt_regs *regs); \
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ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
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static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
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static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
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long sys##name(const struct pt_regs *regs) \
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{ \
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return __se_sys##name(SC_POWERPC_REGS_TO_ARGS(x,__VA_ARGS__)); \
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} \
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static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
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{ \
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long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
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__MAP(x,__SC_TEST,__VA_ARGS__); \
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__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
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return ret; \
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} \
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static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
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#define SYSCALL_DEFINE0(sname) \
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SYSCALL_METADATA(_##sname, 0); \
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long sys_##sname(const struct pt_regs *__unused); \
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ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
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long sys_##sname(const struct pt_regs *__unused)
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#define COND_SYSCALL(name) \
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long sys_##name(const struct pt_regs *regs); \
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long __weak sys_##name(const struct pt_regs *regs) \
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{ \
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return sys_ni_syscall(); \
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}
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#endif // __ASM_POWERPC_SYSCALL_WRAPPER_H
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