xref: /aosp_15_r20/external/musl/arch/loongarch64/syscall_arch.h (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1 #define __SYSCALL_LL_E(x) (x)
2 #define __SYSCALL_LL_O(x) (x)
3 
4 #define SYSCALL_CLOBBERLIST \
5 	"$t0", "$t1", "$t2", "$t3", \
6 	"$t4", "$t5", "$t6", "$t7", "$t8", "memory"
7 
__syscall0(long n)8 static inline long __syscall0(long n)
9 {
10 	register long a7 __asm__("$a7") = n;
11 	register long a0 __asm__("$a0");
12 
13 	__asm__ __volatile__ (
14 		"syscall 0"
15 		: "=r"(a0)
16 		: "r"(a7)
17 		: SYSCALL_CLOBBERLIST);
18 	return a0;
19 }
20 
__syscall1(long n,long a)21 static inline long __syscall1(long n, long a)
22 {
23 	register long a7 __asm__("$a7") = n;
24 	register long a0 __asm__("$a0") = a;
25 
26 	__asm__ __volatile__ (
27 		"syscall 0"
28 		: "+r"(a0)
29 		: "r"(a7)
30 		: SYSCALL_CLOBBERLIST);
31 	return a0;
32 }
33 
__syscall2(long n,long a,long b)34 static inline long __syscall2(long n, long a, long b)
35 {
36 	register long a7 __asm__("$a7") = n;
37 	register long a0 __asm__("$a0") = a;
38 	register long a1 __asm__("$a1") = b;
39 
40 	__asm__ __volatile__ (
41 		"syscall 0"
42 		: "+r"(a0)
43 	        : "r"(a7), "r"(a1)
44 		: SYSCALL_CLOBBERLIST);
45 	return a0;
46 }
47 
__syscall3(long n,long a,long b,long c)48 static inline long __syscall3(long n, long a, long b, long c)
49 {
50 	register long a7 __asm__("$a7") = n;
51 	register long a0 __asm__("$a0") = a;
52 	register long a1 __asm__("$a1") = b;
53 	register long a2 __asm__("$a2") = c;
54 
55 	__asm__ __volatile__ (
56 		"syscall 0"
57 		: "+r"(a0)
58 	        : "r"(a7), "r"(a1), "r"(a2)
59 		: SYSCALL_CLOBBERLIST);
60 	return a0;
61 }
62 
__syscall4(long n,long a,long b,long c,long d)63 static inline long __syscall4(long n, long a, long b, long c, long d)
64 {
65 	register long a7 __asm__("$a7") = n;
66 	register long a0 __asm__("$a0") = a;
67 	register long a1 __asm__("$a1") = b;
68 	register long a2 __asm__("$a2") = c;
69 	register long a3 __asm__("$a3") = d;
70 
71 	__asm__ __volatile__ (
72 		"syscall 0"
73 		: "+r"(a0)
74 	        : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
75 		: SYSCALL_CLOBBERLIST);
76 	return a0;
77 }
78 
__syscall5(long n,long a,long b,long c,long d,long e)79 static inline long __syscall5(long n, long a, long b, long c, long d, long e)
80 {
81 	register long a7 __asm__("$a7") = n;
82 	register long a0 __asm__("$a0") = a;
83 	register long a1 __asm__("$a1") = b;
84 	register long a2 __asm__("$a2") = c;
85 	register long a3 __asm__("$a3") = d;
86 	register long a4 __asm__("$a4") = e;
87 
88 	__asm__ __volatile__ (
89 		"syscall 0"
90 		: "+r"(a0)
91 	        : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
92 		: SYSCALL_CLOBBERLIST);
93 	return a0;
94 }
95 
__syscall6(long n,long a,long b,long c,long d,long e,long f)96 static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
97 {
98 	register long a7 __asm__("$a7") = n;
99 	register long a0 __asm__("$a0") = a;
100 	register long a1 __asm__("$a1") = b;
101 	register long a2 __asm__("$a2") = c;
102 	register long a3 __asm__("$a3") = d;
103 	register long a4 __asm__("$a4") = e;
104 	register long a5 __asm__("$a5") = f;
105 
106 	__asm__ __volatile__ (
107 		"syscall 0"
108 		: "+r"(a0)
109 	        : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
110 		: SYSCALL_CLOBBERLIST);
111 	return a0;
112 }
113 
__syscall7(long n,long a,long b,long c,long d,long e,long f,long g)114 static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
115 {
116 	register long a7 __asm__("$a7") = n;
117 	register long a0 __asm__("$a0") = a;
118 	register long a1 __asm__("$a1") = b;
119 	register long a2 __asm__("$a2") = c;
120 	register long a3 __asm__("$a3") = d;
121 	register long a4 __asm__("$a4") = e;
122 	register long a5 __asm__("$a5") = f;
123 	register long a6 __asm__("$a6") = g;
124 
125 	__asm__ __volatile__ (
126 		"syscall 0"
127 		: "+r"(a0)
128 	        : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
129 		: SYSCALL_CLOBBERLIST);
130 	return a0;
131 }
132 
133 #define VDSO_USEFUL
134 #define VDSO_CGT_SYM "__vdso_clock_gettime"
135 #define VDSO_CGT_VER "LINUX_5.10"
136 
137 #define IPC_64  0
138