#ifndef _BITS_SYSCALLS_H #define _BITS_SYSCALLS_H #ifndef _SYSCALL_H # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." #endif /* The Linux kernel uses different trap numbers on sh-2. */ #if defined __sh2__ || defined __SH2A__ # define __SH_SYSCALL_TRAP_BASE 0x20 #else # define __SH_SYSCALL_TRAP_BASE 0x10 #endif #ifndef __ASSEMBLER__ #include <errno.h> #define SYSCALL_INST_STR(x) "trapa #"__stringify(__SH_SYSCALL_TRAP_BASE + x)"\n\t" #define SYSCALL_INST_STR0 SYSCALL_INST_STR(0) #define SYSCALL_INST_STR1 SYSCALL_INST_STR(1) #define SYSCALL_INST_STR2 SYSCALL_INST_STR(2) #define SYSCALL_INST_STR3 SYSCALL_INST_STR(3) #define SYSCALL_INST_STR4 SYSCALL_INST_STR(4) #define SYSCALL_INST_STR5 SYSCALL_INST_STR(5) #define SYSCALL_INST_STR6 SYSCALL_INST_STR(6) # ifdef NEED_SYSCALL_INST_PAD # define SYSCALL_INST_PAD "\ or r0,r0; or r0,r0; or r0,r0; or r0,r0; or r0,r0" # else # define SYSCALL_INST_PAD # endif #define ASMFMT_0 #define ASMFMT_1 \ , "r" (r4) #define ASMFMT_2 \ , "r" (r4), "r" (r5) #define ASMFMT_3 \ , "r" (r4), "r" (r5), "r" (r6) #define ASMFMT_4 \ , "r" (r4), "r" (r5), "r" (r6), "r" (r7) #define ASMFMT_5 \ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0) #define ASMFMT_6 \ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0), "r" (r1) #define ASMFMT_7 \ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0), "r" (r1), "r" (r2) #define SUBSTITUTE_ARGS_0() #define SUBSTITUTE_ARGS_1(arg1) \ long int _arg1 = (long int) (arg1); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1) #define SUBSTITUTE_ARGS_2(arg1, arg2) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2) #define SUBSTITUTE_ARGS_3(arg1, arg2, arg3) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ long int _arg3 = (long int) (arg3); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \ register long int r6 __asm__ ("%r6") = (long int) (_arg3) #define SUBSTITUTE_ARGS_4(arg1, arg2, arg3, arg4) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ long int _arg3 = (long int) (arg3); \ long int _arg4 = (long int) (arg4); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \ register long int r7 __asm__ ("%r7") = (long int) (_arg4) #define SUBSTITUTE_ARGS_5(arg1, arg2, arg3, arg4, arg5) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ long int _arg3 = (long int) (arg3); \ long int _arg4 = (long int) (arg4); \ long int _arg5 = (long int) (arg5); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \ register long int r0 __asm__ ("%r0") = (long int) (_arg5) #define SUBSTITUTE_ARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ long int _arg3 = (long int) (arg3); \ long int _arg4 = (long int) (arg4); \ long int _arg5 = (long int) (arg5); \ long int _arg6 = (long int) (arg6); \ register long int r4 __asm__ ("%r4") = (long int)(_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \ register long int r0 __asm__ ("%r0") = (long int) (_arg5); \ register long int r1 __asm__ ("%r1") = (long int) (_arg6) #define SUBSTITUTE_ARGS_7(arg1, arg2, arg3, arg4, arg5, arg6, arg7) \ long int _arg1 = (long int) (arg1); \ long int _arg2 = (long int) (arg2); \ long int _arg3 = (long int) (arg3); \ long int _arg4 = (long int) (arg4); \ long int _arg5 = (long int) (arg5); \ long int _arg6 = (long int) (arg6); \ long int _arg7 = (long int) (arg7); \ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \ register long int r0 __asm__ ("%r0") = (long int) (_arg5); \ register long int r1 __asm__ ("%r1") = (long int) (_arg6); \ register long int r2 __asm__ ("%r2") = (long int) (_arg7) /* The _NCS variant allows non-constant syscall numbers. */ #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ ({ \ unsigned long int resultvar; \ register long int r3 __asm__ ("%r3") = (name); \ SUBSTITUTE_ARGS_##nr(args); \ \ __asm__ __volatile__ (SYSCALL_INST_STR##nr SYSCALL_INST_PAD \ : "=z" (resultvar) \ : "r" (r3) ASMFMT_##nr \ : "memory"); \ \ (int) resultvar; }) #define INTERNAL_SYSCALL_ERROR_P(val, err) \ ((unsigned int) (val) >= 0xfffff001u) #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */