| 1 | #ifndef _BITS_SYSCALLS_H |
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| 2 | #define _BITS_SYSCALLS_H |
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| 3 | #ifndef _SYSCALL_H |
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| 4 | # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." |
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| 5 | #endif |
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| 6 | |
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| 7 | /* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel |
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| 8 | * header files. It also defines the traditional `SYS_<name>' macros for older |
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| 9 | * programs. */ |
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| 10 | #include <bits/sysnum.h> |
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| 11 | |
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| 12 | #ifndef __set_errno |
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| 13 | # define __set_errno(val) (*__errno_location ()) = (val) |
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| 14 | #endif |
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| 15 | #ifndef SYS_ify |
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| 16 | # define SYS_ify(syscall_name) (__NR_##syscall_name) |
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| 17 | #endif |
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| 18 | |
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| 19 | #ifndef __ASSEMBLER__ |
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| 20 | |
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| 21 | #define _syscall0(type,name) \ |
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| 22 | type name(void) \ |
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| 23 | { \ |
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| 24 | long err; \ |
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| 25 | long sys_result; \ |
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| 26 | { \ |
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| 27 | register unsigned long __v0 asm("$2"); \ |
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| 28 | register unsigned long __a3 asm("$7"); \ |
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| 29 | __asm__ volatile ( \ |
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| 30 | ".set noreorder\n\t" \ |
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| 31 | "li $2, %2 # " #name "\n\t" \ |
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| 32 | "syscall\n\t" \ |
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| 33 | ".set reorder" \ |
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| 34 | : "=r" (__v0), "=r" (__a3) \ |
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| 35 | : "i" (SYS_ify(name)) \ |
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| 36 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 37 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 38 | err = __a3; \ |
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| 39 | sys_result = __v0; \ |
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| 40 | } \ |
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| 41 | if (err == 0) \ |
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| 42 | return (type) sys_result; \ |
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| 43 | __set_errno(sys_result); \ |
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| 44 | return (type)-1; \ |
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| 45 | } |
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| 46 | |
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| 47 | #define _syscall1(type,name,atype,a) \ |
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| 48 | type name(atype a) \ |
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| 49 | { \ |
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| 50 | long err; \ |
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| 51 | long sys_result; \ |
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| 52 | { \ |
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| 53 | register unsigned long __v0 asm("$2"); \ |
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| 54 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 55 | register unsigned long __a3 asm("$7"); \ |
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| 56 | __asm__ volatile ( \ |
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| 57 | ".set noreorder\n\t" \ |
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| 58 | "li $2, %3\t\t\t# " #name "\n\t" \ |
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| 59 | "syscall\n\t" \ |
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| 60 | ".set reorder" \ |
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| 61 | : "=r" (__v0), "=r" (__a3) \ |
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| 62 | : "r" (__a0), "i" (SYS_ify(name)) \ |
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| 63 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 64 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 65 | err = __a3; \ |
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| 66 | sys_result = __v0; \ |
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| 67 | } \ |
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| 68 | if (err == 0) \ |
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| 69 | return (type) sys_result; \ |
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| 70 | __set_errno(sys_result); \ |
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| 71 | return (type)-1; \ |
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| 72 | } |
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| 73 | |
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| 74 | #define _syscall2(type,name,atype,a,btype,b) \ |
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| 75 | type name(atype a,btype b) \ |
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| 76 | { \ |
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| 77 | long err; \ |
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| 78 | long sys_result; \ |
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| 79 | { \ |
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| 80 | register unsigned long __v0 asm("$2"); \ |
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| 81 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 82 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 83 | register unsigned long __a3 asm("$7"); \ |
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| 84 | __asm__ volatile ( \ |
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| 85 | ".set noreorder\n\t" \ |
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| 86 | "li $2, %4\t\t\t# " #name "\n\t" \ |
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| 87 | "syscall\n\t" \ |
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| 88 | ".set reorder" \ |
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| 89 | : "=r" (__v0), "=r" (__a3) \ |
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| 90 | : "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \ |
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| 91 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 92 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 93 | err = __a3; \ |
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| 94 | sys_result = __v0; \ |
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| 95 | } \ |
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| 96 | if (err == 0) \ |
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| 97 | return (type) sys_result; \ |
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| 98 | __set_errno(sys_result); \ |
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| 99 | return (type)-1; \ |
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| 100 | } |
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| 101 | |
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| 102 | #define _syscall3(type,name,atype,a,btype,b,ctype,c) \ |
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| 103 | type name (atype a, btype b, ctype c) \ |
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| 104 | { \ |
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| 105 | long err; \ |
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| 106 | long sys_result; \ |
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| 107 | { \ |
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| 108 | register unsigned long __v0 asm("$2"); \ |
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| 109 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 110 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 111 | register unsigned long __a2 asm("$6") = (unsigned long) c; \ |
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| 112 | register unsigned long __a3 asm("$7"); \ |
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| 113 | __asm__ volatile ( \ |
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| 114 | ".set noreorder\n\t" \ |
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| 115 | "li $2, %5\t\t\t# " #name "\n\t" \ |
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| 116 | "syscall\n\t" \ |
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| 117 | ".set reorder" \ |
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| 118 | : "=r" (__v0), "=r" (__a3) \ |
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| 119 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \ |
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| 120 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 121 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 122 | err = __a3; \ |
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| 123 | sys_result = __v0; \ |
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| 124 | } \ |
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| 125 | if (err == 0) \ |
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| 126 | return (type) sys_result; \ |
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| 127 | __set_errno(sys_result); \ |
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| 128 | return (type)-1; \ |
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| 129 | } |
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| 130 | |
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| 131 | #define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ |
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| 132 | type name (atype a, btype b, ctype c, dtype d) \ |
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| 133 | { \ |
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| 134 | long err; \ |
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| 135 | long sys_result; \ |
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| 136 | { \ |
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| 137 | register unsigned long __v0 asm("$2"); \ |
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| 138 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 139 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 140 | register unsigned long __a2 asm("$6") = (unsigned long) c; \ |
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| 141 | register unsigned long __a3 asm("$7") = (unsigned long) d; \ |
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| 142 | __asm__ volatile ( \ |
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| 143 | ".set noreorder\n\t" \ |
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| 144 | "li $2, %5\t\t\t# " #name "\n\t" \ |
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| 145 | "syscall\n\t" \ |
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| 146 | ".set reorder" \ |
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| 147 | : "=r" (__v0), "+r" (__a3) \ |
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| 148 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \ |
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| 149 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 150 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 151 | err = __a3; \ |
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| 152 | sys_result = __v0; \ |
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| 153 | } \ |
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| 154 | if (err == 0) \ |
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| 155 | return (type) sys_result; \ |
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| 156 | __set_errno(sys_result); \ |
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| 157 | return (type)-1; \ |
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| 158 | } |
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| 159 | |
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| 160 | #define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \ |
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| 161 | type name (atype a,btype b,ctype c,dtype d,etype e) \ |
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| 162 | { \ |
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| 163 | long err; \ |
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| 164 | long sys_result; \ |
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| 165 | const unsigned long *constE = (void*)(unsigned long) e; \ |
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| 166 | { \ |
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| 167 | register unsigned long __v0 asm("$2"); \ |
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| 168 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 169 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 170 | register unsigned long __a2 asm("$6") = (unsigned long) c; \ |
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| 171 | register unsigned long __a3 asm("$7") = (unsigned long) d; \ |
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| 172 | __asm__ volatile ( \ |
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| 173 | ".set noreorder\n\t" \ |
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| 174 | "lw $2, %6\n\t" \ |
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| 175 | "subu $29, 32\n\t" \ |
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| 176 | "sw $2, 16($29)\n\t" \ |
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| 177 | "li $2, %5\t\t\t# " #name "\n\t" \ |
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| 178 | "syscall\n\t" \ |
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| 179 | "addiu $29, 32\n\t" \ |
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| 180 | ".set reorder" \ |
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| 181 | : "=r" (__v0), "+r" (__a3) \ |
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| 182 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \ |
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| 183 | "m" (constE) \ |
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| 184 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 185 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 186 | err = __a3; \ |
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| 187 | sys_result = __v0; \ |
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| 188 | } \ |
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| 189 | if (err == 0) \ |
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| 190 | return (type) sys_result; \ |
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| 191 | __set_errno(sys_result); \ |
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| 192 | return (type)-1; \ |
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| 193 | } |
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| 194 | |
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| 195 | #define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ |
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| 196 | type name (atype a,btype b,ctype c,dtype d,etype e,ftype f) \ |
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| 197 | { \ |
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| 198 | long err; \ |
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| 199 | long sys_result; \ |
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| 200 | const unsigned long *constE = (void*)(unsigned long) e; \ |
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| 201 | const unsigned long *constF = (void*)(unsigned long) f; \ |
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| 202 | { \ |
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| 203 | register unsigned long __v0 asm("$2"); \ |
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| 204 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 205 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 206 | register unsigned long __a2 asm("$6") = (unsigned long) c; \ |
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| 207 | register unsigned long __a3 asm("$7") = (unsigned long) d; \ |
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| 208 | __asm__ volatile ( \ |
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| 209 | ".set noreorder\n\t" \ |
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| 210 | "lw $2, %6\n\t" \ |
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| 211 | "lw $8, %7\n\t" \ |
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| 212 | "subu $29, 32\n\t" \ |
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| 213 | "sw $2, 16($29)\n\t" \ |
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| 214 | "sw $8, 20($29)\n\t" \ |
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| 215 | "li $2, %5\t\t\t# " #name "\n\t" \ |
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| 216 | "syscall\n\t" \ |
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| 217 | "addiu $29, 32\n\t" \ |
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| 218 | ".set reorder" \ |
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| 219 | : "=r" (__v0), "+r" (__a3) \ |
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| 220 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \ |
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| 221 | "m" (constE), "m" (constF) \ |
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| 222 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 223 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 224 | err = __a3; \ |
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| 225 | sys_result = __v0; \ |
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| 226 | } \ |
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| 227 | if (err == 0) \ |
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| 228 | return (type) sys_result; \ |
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| 229 | __set_errno(sys_result); \ |
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| 230 | return (type)-1; \ |
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| 231 | } |
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| 232 | |
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| 233 | #define _syscall7(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f,gtype,g) \ |
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| 234 | type name (atype a,btype b,ctype c,dtype d,etype e,ftype f,gtype g) \ |
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| 235 | { \ |
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| 236 | long err; \ |
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| 237 | long sys_result; \ |
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| 238 | const unsigned long *constE = (void*)(unsigned long) e; \ |
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| 239 | const unsigned long *constF = (void*)(unsigned long) f; \ |
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| 240 | const unsigned long *constG = (void*)(unsigned long) g; \ |
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| 241 | { \ |
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| 242 | register unsigned long __v0 asm("$2"); \ |
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| 243 | register unsigned long __a0 asm("$4") = (unsigned long) a; \ |
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| 244 | register unsigned long __a1 asm("$5") = (unsigned long) b; \ |
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| 245 | register unsigned long __a2 asm("$6") = (unsigned long) c; \ |
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| 246 | register unsigned long __a3 asm("$7") = (unsigned long) d; \ |
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| 247 | __asm__ volatile ( \ |
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| 248 | ".set noreorder\n\t" \ |
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| 249 | "lw $2, %6\n\t" \ |
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| 250 | "lw $8, %7\n\t" \ |
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| 251 | "lw $9, %8\n\t" \ |
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| 252 | "subu $29, 32\n\t" \ |
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| 253 | "sw $2, 16($29)\n\t" \ |
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| 254 | "sw $8, 20($29)\n\t" \ |
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| 255 | "sw $9, 24($29)\n\t" \ |
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| 256 | "li $2, %5\t\t\t# " #name "\n\t" \ |
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| 257 | "syscall\n\t" \ |
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| 258 | "addiu $29, 32\n\t" \ |
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| 259 | ".set reorder" \ |
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| 260 | : "=r" (__v0), "+r" (__a3) \ |
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| 261 | : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \ |
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| 262 | "m" (constE), "m" (constF), "m" (constG) \ |
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| 263 | : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \ |
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| 264 | "$14", "$15", "$24", "$25", "memory"); \ |
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| 265 | err = __a3; \ |
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| 266 | sys_result = __v0; \ |
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| 267 | } \ |
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| 268 | if (err == 0) \ |
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| 269 | return (type) sys_result; \ |
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| 270 | __set_errno(sys_result); \ |
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| 271 | return (type)-1; \ |
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| 272 | } |
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| 273 | |
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| 274 | #endif /* __ASSEMBLER__ */ |
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| 275 | #endif /* _BITS_SYSCALLS_H */ |
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