![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to makesyscalls.sh CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / sys / kern|
Return to makesyscalls.sh CVS log | Up to [CSRG BSD Unix] / 43BSDReno / sys / kern |
1.1 root 1: #! /bin/sh -
2: # @(#)makesyscalls.sh 7.5 (Berkeley) 6/21/90
3:
4: set -e
5:
6: # name of compat option:
7: compat=COMPAT_43
8:
9: # output files:
10: sysnames="syscalls.c"
11: syshdr="../sys/syscall.h"
12: syssw="init_sysent.c"
13:
14: # tmp files:
15: sysdcl="sysent.dcl"
16: syscompat="sysent.compat"
17: sysent="sysent.switch"
18:
19: trap "rm $sysdcl $syscompat $sysent" 0
20:
21: case $# in
22: 0) echo "Usage: $0 input-file" 1>&2
23: exit 1
24: ;;
25: esac
26:
27: awk < $1 "
28: BEGIN {
29: sysdcl = \"$sysdcl\"
30: syscompat = \"$syscompat\"
31: sysent = \"$sysent\"
32: sysnames = \"$sysnames\"
33: syshdr = \"$syshdr\"
34: compat = \"$compat\"
35: infile = \"$1\"
36: "'
37:
38: printf "/*\n * System call switch table.\n *\n" > sysdcl
39: printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl
40:
41: printf "\n#ifdef %s\n", compat > syscompat
42: printf "#define compat(n, name) n, o/**/name\n\n" > syscompat
43:
44: printf "/*\n * System call names.\n *\n" > sysnames
45: printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
46:
47: printf "/*\n * System call numbers.\n *\n" > syshdr
48: printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
49: }
50: NR == 1 {
51: printf " * created from%s\n */\n\n", $0 > sysdcl
52: printf "#include \"param.h\"\n" > sysdcl
53: printf "#include \"systm.h\"\n\n" > sysdcl
54: printf "int\tnosys();\n\n" > sysdcl
55:
56: printf "struct sysent sysent[] = {\n" > sysent
57:
58: printf " * created from%s\n */\n\n", $0 > sysnames
59: printf "char *syscallnames[] = {\n" > sysnames
60:
61: printf " * created from%s\n */\n\n", $0 > syshdr
62: next
63: }
64: NF == 0 || $1 ~ /^;/ {
65: next
66: }
67: $1 ~ /^#[ ]*if/ {
68: print > sysent
69: print > sysdcl
70: print > syscompat
71: print > sysnames
72: savesyscall = syscall
73: next
74: }
75: $1 ~ /^#[ ]*else/ {
76: print > sysent
77: print > sysdcl
78: print > syscompat
79: print > sysnames
80: syscall = savesyscall
81: next
82: }
83: $1 ~ /^#/ {
84: print > sysent
85: print > sysdcl
86: print > syscompat
87: print > sysnames
88: next
89: }
90: syscall != $1 {
91: printf "%s: line %d: syscall number out of sync at %d\n", \
92: infile, NR, syscall
93: printf "line is:\n"
94: print
95: exit 1
96: }
97: { comment = $4
98: for (i = 5; i <= NF; i++)
99: comment = comment " " $i
100: if (NF < 5)
101: $5 = $4
102: }
103: $2 == "STD" {
104: printf("int\t%s();\n", $4) > sysdcl
105: printf("\t%d, %s,\t\t\t/* %d = %s */\n", \
106: $3, $4, syscall, $5) > sysent
107: printf("\t\"%s\",\t\t\t/* %d = %s */\n", \
108: $5, syscall, $5) > sysnames
109: printf("#define\tSYS_%s\t%d\n", \
110: $5, syscall) > syshdr
111: syscall++
112: next
113: }
114: $2 == "COMPAT" {
115: printf("int\to%s();\n", $4) > syscompat
116: printf("\tcompat(%d,%s),\t\t/* %d = old %s */\n", \
117: $3, $4, syscall, $5) > sysent
118: printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \
119: $5, syscall, $5) > sysnames
120: printf("\t\t\t\t/* %d is old %s */\n", \
121: syscall, comment) > syshdr
122: syscall++
123: next
124: }
125: $2 == "LIBCOMPAT" {
126: printf("int\to%s();\n", $4) > syscompat
127: printf("\tcompat(%d,%s),\t\t/* %d = old %s */\n", \
128: $3, $4, syscall, $5) > sysent
129: printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \
130: $5, syscall, $5) > sysnames
131: printf("#define\tSYS_%s\t%d\t/* compatibility; still used by libc */\n", \
132: $5, syscall) > syshdr
133: syscall++
134: next
135: }
136: $2 == "OBSOL" {
137: printf("\t0, nosys,\t\t\t/* %d = obsolete %s */\n", \
138: syscall, comment) > sysent
139: printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", \
140: $4, syscall, comment) > sysnames
141: printf("\t\t\t\t/* %d is obsolete %s */\n", \
142: syscall, comment) > syshdr
143: syscall++
144: next
145: }
146: $2 == "UNIMPL" {
147: printf("\t0, nosys,\t\t\t/* %d = %s */\n", \
148: syscall, comment) > sysent
149: printf("\t\"#%d\",\t\t\t/* %d = %s */\n", \
150: syscall, syscall, comment) > sysnames
151: syscall++
152: next
153: }
154: {
155: printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
156: exit 1
157: }
158: END {
159: printf("\n#else /* %s */\n", compat) > syscompat
160: printf("#define compat(n, name) 0, nosys\n") > syscompat
161: printf("#endif /* %s */\n\n", compat) > syscompat
162:
163: printf("};\n\n") > sysent
164: printf("int\tnsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent
165:
166: printf("};\n") > sysnames
167: } '
168:
169: cat $sysdcl $syscompat $sysent >$syssw
170:
171: chmod 444 $sysnames $syshdr $syssw
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.