2 * arch/ia64/include/klibc/archsys.h
4 * Architecture-specific syscall definitions
7 #ifndef _KLIBC_ARCHSYS_H
8 #define _KLIBC_ARCHSYS_H
10 #define __IA64_BREAK "break 0x100000;;\n\t"
12 #define _syscall0(type,name) \
16 register long _r8 asm ("r8"); \
17 register long _r10 asm ("r10"); \
18 register long _r15 asm ("r15") = __NR_##name; \
20 __asm __volatile (__IA64_BREAK \
21 : "=r" (_r8), "=r" (_r10), "=r" (_r15) \
22 : "2" (_r15) ASM_ARGS_0 \
23 : "memory" ASM_CLOBBERS_0); \
29 return (type)_retval; \
32 #define _syscall1(type,name,type1,arg1) \
36 register long _r8 asm ("r8"); \
37 register long _r10 asm ("r10"); \
38 register long _r15 asm ("r15") = __NR_##name; \
41 __asm __volatile (__IA64_BREAK \
42 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
44 : "2" (_r15) ASM_ARGS_1 \
45 : "memory" ASM_CLOBBERS_1); \
51 return (type)_retval; \
54 #define _syscall2(type,name,type1,arg1,type2,arg2) \
56 name (type1 arg1, type2 arg2) \
58 register long _r8 asm ("r8"); \
59 register long _r10 asm ("r10"); \
60 register long _r15 asm ("r15") = __NR_##name; \
62 LOAD_ARGS_2(arg1, arg2); \
63 __asm __volatile (__IA64_BREAK \
64 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
66 : "2" (_r15) ASM_ARGS_2 \
67 : "memory" ASM_CLOBBERS_2); \
73 return (type)_retval; \
76 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
78 name (type1 arg1, type2 arg2, type3 arg3) \
80 register long _r8 asm ("r8"); \
81 register long _r10 asm ("r10"); \
82 register long _r15 asm ("r15") = __NR_##name; \
84 LOAD_ARGS_3(arg1, arg2, arg3); \
85 __asm __volatile (__IA64_BREAK \
86 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
88 : "2" (_r15) ASM_ARGS_3 \
89 : "memory" ASM_CLOBBERS_3); \
95 return (type)_retval; \
98 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
100 name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
102 register long _r8 asm ("r8"); \
103 register long _r10 asm ("r10"); \
104 register long _r15 asm ("r15") = __NR_##name; \
106 LOAD_ARGS_4(arg1, arg2, arg3, arg4); \
107 __asm __volatile (__IA64_BREAK \
108 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
110 : "2" (_r15) ASM_ARGS_4 \
111 : "memory" ASM_CLOBBERS_4); \
117 return (type)_retval; \
120 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
122 name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
124 register long _r8 asm ("r8"); \
125 register long _r10 asm ("r10"); \
126 register long _r15 asm ("r15") = __NR_##name; \
128 LOAD_ARGS_5(arg1, arg2, arg3, arg4, arg5); \
129 __asm __volatile (__IA64_BREAK \
130 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
132 : "2" (_r15) ASM_ARGS_5 \
133 : "memory" ASM_CLOBBERS_5); \
139 return (type)_retval; \
142 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
144 name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
146 register long _r8 asm ("r8"); \
147 register long _r10 asm ("r10"); \
148 register long _r15 asm ("r15") = __NR_##name; \
150 LOAD_ARGS_6(arg1, arg2, arg3, arg4, arg5, arg6); \
151 __asm __volatile (__IA64_BREAK \
152 : "=r" (_r8), "=r" (_r10), "=r" (_r15), \
154 : "2" (_r15) ASM_ARGS_6 \
155 : "memory" ASM_CLOBBERS_6); \
161 return (type)_retval; \
165 #define LOAD_ARGS_0() do { } while (0)
166 #define LOAD_ARGS_1(out0) \
167 register long _out0 asm ("out0") = (long) (out0); \
169 #define LOAD_ARGS_2(out0, out1) \
170 register long _out1 asm ("out1") = (long) (out1); \
172 #define LOAD_ARGS_3(out0, out1, out2) \
173 register long _out2 asm ("out2") = (long) (out2); \
174 LOAD_ARGS_2 (out0, out1)
175 #define LOAD_ARGS_4(out0, out1, out2, out3) \
176 register long _out3 asm ("out3") = (long) (out3); \
177 LOAD_ARGS_3 (out0, out1, out2)
178 #define LOAD_ARGS_5(out0, out1, out2, out3, out4) \
179 register long _out4 asm ("out4") = (long) (out4); \
180 LOAD_ARGS_4 (out0, out1, out2, out3)
181 #define LOAD_ARGS_6(out0, out1, out2, out3, out4, out5) \
182 register long _out5 asm ("out5") = (long) (out5); \
183 LOAD_ARGS_5 (out0, out1, out2, out3, out4)
185 #define ASM_OUTARGS_1 "=r" (_out0)
186 #define ASM_OUTARGS_2 ASM_OUTARGS_1, "=r" (_out1)
187 #define ASM_OUTARGS_3 ASM_OUTARGS_2, "=r" (_out2)
188 #define ASM_OUTARGS_4 ASM_OUTARGS_3, "=r" (_out3)
189 #define ASM_OUTARGS_5 ASM_OUTARGS_4, "=r" (_out4)
190 #define ASM_OUTARGS_6 ASM_OUTARGS_5, "=r" (_out5)
193 #define ASM_ARGS_1 ASM_ARGS_0, "3" (_out0)
194 #define ASM_ARGS_2 ASM_ARGS_1, "4" (_out1)
195 #define ASM_ARGS_3 ASM_ARGS_2, "5" (_out2)
196 #define ASM_ARGS_4 ASM_ARGS_3, "6" (_out3)
197 #define ASM_ARGS_5 ASM_ARGS_4, "7" (_out4)
198 #define ASM_ARGS_6 ASM_ARGS_5, "8" (_out5)
200 #define ASM_CLOBBERS_0 ASM_CLOBBERS_1, "out0"
201 #define ASM_CLOBBERS_1 ASM_CLOBBERS_2, "out1"
202 #define ASM_CLOBBERS_2 ASM_CLOBBERS_3, "out2"
203 #define ASM_CLOBBERS_3 ASM_CLOBBERS_4, "out3"
204 #define ASM_CLOBBERS_4 ASM_CLOBBERS_5, "out4"
205 #define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5"
206 #define ASM_CLOBBERS_6 , "out6", "out7", \
207 /* Non-stacked integer registers, minus r8, r10, r15. */ \
208 "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \
209 "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \
210 "r28", "r29", "r30", "r31", \
211 /* Predicate registers. */ \
212 "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \
213 /* Non-rotating fp registers. */ \
214 "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
215 /* Branch registers. */ \
218 #endif /* _KLIBC_ARCHSYS_H */