1 #ifndef _BITS_SYSCALLS_H
2 #define _BITS_SYSCALLS_H
3 #ifndef _SYSCALL_H
4 # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
5 #endif
6 
7 #ifndef __ASSEMBLER__
8 
9 #define __SYSCALL_STRING \
10 	"t 0x10\n\t" \
11 	"bcc 1f\n\t" \
12 	"mov %%o0, %0\n\t" \
13 	"sub %%g0, %%o0, %0\n\t" \
14 	"1:\n\t"
15 
16 #define __SYSCALL_CLOBBERS "cc", "memory"
17 
18 #ifndef NOT_IN_libc
19 #define DEBUG_SYSCALL(name) { \
20       char d[64];\
21       write( 2, d, snprintf( d, 64, "syscall %d error %d\n", __NR_##name, _inline_sys_result)); \
22 }
23 #else
24 #define DEBUG_SYSCALL(name) do{} while(0)
25 #endif
26 
27 #define INTERNAL_SYSCALL_NCS(sys_num, err, nr, args...) \
28 (__extension__ \
29     ({                                                      \
30         unsigned int __res;                                 \
31         {                                                   \
32             register long __o0 __asm__("o0");               \
33             register long __g1 __asm__("g1") = sys_num;     \
34             LOAD_ARGS_##nr(args)                            \
35             __asm__ __volatile__( __SYSCALL_STRING          \
36                 : "=r" (__res), "=r" (__o0)                \
37                 : "1" (__o0) ASM_ARGS_##nr, "r" (__g1)     \
38                 : __SYSCALL_CLOBBERS );                                   \
39         }                                                   \
40         (int)__res;                                         \
41      }) \
42 )
43 #define INTERNAL_SYSCALL_ERROR_P(val, err) \
44   ((unsigned int) (val) >= 0xfffff001u)
45 
46 # define CALL_ERRNO_LOCATION "call   __errno_location;"
47 #define __CLONE_SYSCALL_STRING						\
48 	"ta	0x10;"							\
49 	"bcs	2f;"							\
50 	" sub	%%o1, 1, %%o1;"						\
51 	"and	%%o0, %%o1, %%o0;"					\
52 	"1:"								\
53 	".subsection 2;"						\
54 	"2:"								\
55 	"save	%%sp, -192, %%sp;"					\
56 	CALL_ERRNO_LOCATION						\
57 	" nop;"								\
58 	"st	%%i0, [%%o0];"						\
59 	"ba	1b;"							\
60 	" restore %%g0, -1, %%o0;"					\
61 	".previous;"
62 
63 #define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5)			\
64 ({									\
65 	register long __o0 __asm__ ("o0") = (long)(arg1);		\
66 	register long __o1 __asm__ ("o1") = (long)(arg2);		\
67 	register long __o2 __asm__ ("o2") = (long)(arg3);		\
68 	register long __o3 __asm__ ("o3") = (long)(arg4);		\
69 	register long __o4 __asm__ ("o4") = (long)(arg5);		\
70 	register long __g1 __asm__ ("g1") = __NR_clone;			\
71 	__asm__ __volatile__ (__CLONE_SYSCALL_STRING :			\
72 			  "=r" (__g1), "=r" (__o0), "=r" (__o1)	:	\
73 			  "0" (__g1), "1" (__o0), "2" (__o1),		\
74 			  "r" (__o2), "r" (__o3), "r" (__o4) :		\
75 			  __SYSCALL_CLOBBERS);				\
76 	__o0;								\
77 })
78 
79 #define LOAD_ARGS_0()
80 #define ASM_ARGS_0
81 #define LOAD_ARGS_1(o0) \
82     __o0 = (int)o0;     \
83     LOAD_ARGS_0()
84 #define ASM_ARGS_1 ASM_ARGS_0, "r" (__o0)
85 #define LOAD_ARGS_2(o0, o1)			\
86   register int __o1 __asm__ ("o1") = (int) (o1);	\
87   LOAD_ARGS_1 (o0)
88 #define ASM_ARGS_2	ASM_ARGS_1, "r" (__o1)
89 #define LOAD_ARGS_3(o0, o1, o2)			\
90   register int __o2 __asm__ ("o2") = (int) (o2);	\
91   LOAD_ARGS_2 (o0, o1)
92 #define ASM_ARGS_3	ASM_ARGS_2, "r" (__o2)
93 #define LOAD_ARGS_4(o0, o1, o2, o3)		\
94   register int __o3 __asm__ ("o3") = (int) (o3);	\
95   LOAD_ARGS_3 (o0, o1, o2)
96 #define ASM_ARGS_4	ASM_ARGS_3, "r" (__o3)
97 #define LOAD_ARGS_5(o0, o1, o2, o3, o4)		\
98   register int __o4 __asm__ ("o4") = (int) (o4);	\
99   LOAD_ARGS_4 (o0, o1, o2, o3)
100 #define ASM_ARGS_5	ASM_ARGS_4, "r" (__o4)
101 #define LOAD_ARGS_6(o0, o1, o2, o3, o4, o5)	\
102   register int __o5 __asm__ ("o5") = (int) (o5);	\
103   LOAD_ARGS_5 (o0, o1, o2, o3, o4)
104 #define ASM_ARGS_6	ASM_ARGS_5, "r" (__o5)
105 
106 
107 #endif /* __ASSEMBLER__ */
108 #endif /* _BITS_SYSCALLS_H */
109