💾 Archived View for gmi.noulin.net › gitRepositories › spartserv › file › spartasm › syscall.asm.gmi captured on 2023-07-10 at 15:39:12. Gemini links have been rewritten to link to archived content
-=-=-=-=-=-=-
syscall.asm (3046B)
1 sys_open_directory:;rdi = path, rax = ret ( fd )
2 stackpush
3 mov rsi, OPEN_DIRECTORY | OPEN_RDONLY ;flags
4 mov rax, SYS_OPEN
5 syscall
6 stackpop
7 ret
8
9 sys_create_tcp_socket:
10 stackpush
11 mov rdi, AF_INET
12 mov rsi, SOCK_STREAM
13 mov rdx, PROTO_TCP
14 mov rax, SYS_SOCKET
15 syscall
16 stackpop
17 ret
18
19 sys_reuse:;rdi - socket
20 stackpush
21 mov r8, 8 ;sizeof int
22 mov r10, one_constant ;pointer to 1
23 mov rsi, LEVEL_SOL_TCP
24 mov rdx, SOCKOPT_TCP_REUSEADDR
25 mov rax, SYS_SETSOCKOPT
26 syscall
27 stackpop
28 ret
29
30 sys_bind_server:
31 stackpush
32
33 mov rsi, [listen_port]
34 mov [sa + sin_port], rsi
35
36 mov rdi, [listen_socket]
37 mov rsi, sa
38 mov rdx, 16
39 mov rax, SYS_BIND
40 syscall
41 stackpop
42 ret
43
44 sys_listen:
45 stackpush
46 mov rdi, [listen_socket]
47 mov rsi, 100000000;backlog
48 mov rax, SYS_LISTEN
49 syscall
50 stackpop
51 ret
52
53 sys_mmap_mem:
54 stackpush
55 mov rsi, rdi ;Size
56 xor rdi, rdi ;Preferred address (don't care)
57 mov rdx, MMAP_PROT_READ | MMAP_PROT_WRITE ;Protection Flags
58 mov r10, MMAP_MAP_PRIVATE | MMAP_MAP_ANON ;Flags
59 xor r8, r8
60 dec r8 ;-1 fd because of MMAP_MAP_ANON
61 xor r9, r9 ;Offset
62 mov rax, SYS_MMAP
63 syscall
64 stackpop
65 ret
66
67 sys_accept:
68 stackpush
69 mov rdi, [listen_socket]
70 xor rsi, rsi
71 xor rdx, rdx
72 mov rax, SYS_ACCEPT
73 syscall
74 stackpop
75 ret
76
77 sys_cork:;rdi - socket
78 stackpush
79 mov r10, one_constant ;pointer to 1
80 mov r8, 8 ;sizeof int
81 mov rsi, LEVEL_IPPROTO_TCP
82 mov rdx, SOCKOPT_TCP_CORK
83 mov rax, SYS_SETSOCKOPT
84 syscall
85 stackpop
86 ret
87
88 sys_uncork:;rdi - socket
89 stackpush
90 mov r10, one_constant ;pointer to 1
91 mov r8, 8 ;sizeof int
92 mov rsi, LEVEL_IPPROTO_TCP
93 mov rdx, SOCKOPT_TCP_CORK
94 mov rax, SYS_SETSOCKOPT
95 syscall
96 stackpop
97 ret
98
99 sys_sendfile: ;rdi - outfd, rsi - infd, rdx - file size
100 stackpush
101 mov r10, rdx
102 xor rdx, rdx
103 mov rax, SYS_SENDFILE
104 syscall
105 stackpop
106 ret
107
108 sys_open:
109 stackpush
110 mov rsi, OPEN_RDONLY ;flags
111 mov rax, SYS_OPEN
112 syscall
113 stackpop
114 ret
115
116 sys_close:
117 stackpush
118 mov rax, SYS_CLOSE
119 syscall
120 stackpop
121 ret
122
123 sys_write:
124 stackpush
125 mov rdx, rsi ;length
126 mov rsi, rdi ;buffer
127 mov rdi, FD_STDOUT
128 mov rax, SYS_WRITE
129 syscall
130 stackpop
131 ret
132
133 sys_send:
134 stackpush
135 xor r10, r10
136 xor r8, r8
137 xor r9, r9
138 mov rax, SYS_SENDTO
139 syscall
140 stackpop
141 ret
142
143 sys_recv:
144 stackpush
145 xor r10, r10 ; flags
146 xor r8, r8
147 xor r9, r9
148 mov rax, SYS_RECVFROM
149 syscall
150 stackpop
151 ret
152
153 sys_lseek:; rdi - fd, rsi - offset, rdx - flag
154 stackpush
155 mov rax, SYS_LSEEK
156 syscall
157 stackpop
158 ret
159