makesyscalls.sh revision 1.8
1 #! /bin/sh - 2 # from: @(#)makesyscalls.sh 8.1 (Berkeley) 6/10/93 3 # $Id: makesyscalls.sh,v 1.8 1994/05/18 04:15:51 mycroft Exp $ 4 5 set -e 6 7 # name of compat option: 8 compat=COMPAT_43 9 ncompat=COMPAT_09 10 11 # output files: 12 sysnames="syscalls.c" 13 syshdr="../sys/syscall.h" 14 syssw="init_sysent.c" 15 16 # tmp files: 17 sysdcl="sysent.dcl" 18 syscompat="sysent.compat" 19 sysncompat="sysent.ncompat" 20 sysent="sysent.switch" 21 22 trap "rm $sysdcl $syscompat $sysncompat $sysent" 0 23 24 case $# in 25 0) echo "Usage: $0 input-file" 1>&2 26 exit 1 27 ;; 28 esac 29 30 awk < $1 " 31 BEGIN { 32 sysdcl = \"$sysdcl\" 33 syscompat = \"$syscompat\" 34 sysncompat = \"$sysncompat\" 35 sysent = \"$sysent\" 36 sysnames = \"$sysnames\" 37 syshdr = \"$syshdr\" 38 compat = \"$compat\" 39 ncompat = \"$ncompat\" 40 infile = \"$1\" 41 "' 42 43 printf "/*\n * System call switch table.\n *\n" > sysdcl 44 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl 45 46 printf "\n#ifdef %s\n", compat > syscompat 47 printf "#define compat(n, name) n, __CONCAT(o,name)\n\n" > syscompat 48 49 printf "\n#ifdef %s\n", ncompat > sysncompat 50 printf "#define ncompat(n, name) n, __CONCAT(o,name)\n\n" > sysncompat 51 52 printf "/*\n * System call names.\n *\n" > sysnames 53 printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames 54 55 printf "/*\n * System call numbers.\n *\n" > syshdr 56 printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr 57 } 58 NR == 1 { 59 printf " * created from: %s %s %s %s\n */\n\n",$2,$3,$4,$5 > sysdcl 60 printf "#include <sys/param.h>\n" > sysdcl 61 printf "#include <sys/systm.h>\n\n" > sysdcl 62 printf "int\tnosys();\n\n" > sysdcl 63 64 printf "struct sysent sysent[] = {\n" > sysent 65 66 printf " * created from: %s %s %s %s\n */\n\n",$2,$3,$4,$5 > sysnames 67 printf "char *syscallnames[] = {\n" > sysnames 68 69 printf " * created from: %s %s %s %s\n */\n\n",$2,$3,$4,$5 > syshdr 70 next 71 } 72 NF == 0 || $1 ~ /^;/ { 73 next 74 } 75 $1 ~ /^#[ ]*if/ { 76 print > sysent 77 print > sysdcl 78 print > syscompat 79 print > sysnames 80 savesyscall = syscall 81 next 82 } 83 $1 ~ /^#[ ]*else/ { 84 print > sysent 85 print > sysdcl 86 print > syscompat 87 print > sysnames 88 syscall = savesyscall 89 next 90 } 91 $1 ~ /^#/ { 92 print > sysent 93 print > sysdcl 94 print > syscompat 95 print > sysnames 96 next 97 } 98 syscall != $1 { 99 printf "%s: line %d: syscall number out of sync at %d\n", \ 100 infile, NR, syscall 101 printf "line is:\n" 102 print 103 exit 1 104 } 105 { comment = $4 106 for (i = 5; i <= NF; i++) 107 comment = comment " " $i 108 if (NF < 5) 109 $5 = $4 110 } 111 $2 == "STD" || $2 == "NODEF" { 112 printf("int\t%s();\n", $4) > sysdcl 113 printf("\t{ %d, %s },\t\t\t/* %d = %s */\n", \ 114 $3, $4, syscall, $5) > sysent 115 printf("\t\"%s\",\t\t\t/* %d = %s */\n", \ 116 $5, syscall, $5) > sysnames 117 if ($2 == "STD") 118 printf("#define\tSYS_%s\t%d\n", \ 119 $5, syscall) > syshdr 120 syscall++ 121 next 122 } 123 $2 == "COMPAT" { 124 printf("int\to%s();\n", $4) > syscompat 125 printf("\t{ compat(%d,%s) },\t\t/* %d = old %s */\n", \ 126 $3, $4, syscall, $5) > sysent 127 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 128 $5, syscall, $5) > sysnames 129 printf("\t\t\t\t/* %d is old %s */\n", \ 130 syscall, comment) > syshdr 131 syscall++ 132 next 133 } 134 $2 == "NCOMPAT" { 135 printf("int\to%s();\n", $4) > sysncompat 136 printf("\t{ ncompat(%d,%s) },\t\t/* %d = old %s */\n", \ 137 $3, $4, syscall, $5) > sysent 138 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 139 $5, syscall, $5) > sysnames 140 printf("\t\t\t\t/* %d is old %s */\n", \ 141 syscall, comment) > syshdr 142 syscall++ 143 next 144 } 145 $2 == "LIBCOMPAT" { 146 printf("int\to%s();\n", $4) > syscompat 147 printf("\t{ compat(%d,%s) },\t\t/* %d = old %s */\n", \ 148 $3, $4, syscall, $5) > sysent 149 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 150 $5, syscall, $5) > sysnames 151 printf("#define\tSYS_%s\t%d\t/* compatibility; still used by libc */\n", \ 152 $5, syscall) > syshdr 153 syscall++ 154 next 155 } 156 $2 == "OBSOL" { 157 printf("\t{ 0, nosys },\t\t\t/* %d = obsolete %s */\n", \ 158 syscall, comment) > sysent 159 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", \ 160 $4, syscall, comment) > sysnames 161 printf("\t\t\t\t/* %d is obsolete %s */\n", \ 162 syscall, comment) > syshdr 163 syscall++ 164 next 165 } 166 $2 == "UNIMPL" { 167 printf("\t{ 0, nosys },\t\t\t/* %d = %s */\n", \ 168 syscall, comment) > sysent 169 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", \ 170 syscall, syscall, comment) > sysnames 171 syscall++ 172 next 173 } 174 { 175 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 176 exit 1 177 } 178 END { 179 printf("\n#else /* %s */\n", compat) > syscompat 180 printf("#define compat(n, name) 0, nosys\n") > syscompat 181 printf("#endif /* %s */\n\n", compat) > syscompat 182 183 printf("\n#else /* %s */\n", compat) > sysncompat 184 printf("#define ncompat(n, name) 0, nosys\n") > sysncompat 185 printf("#endif /* %s */\n\n", compat) > sysncompat 186 187 printf("};\n\n") > sysent 188 printf("int\tnsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent 189 190 printf("};\n") > sysnames 191 } ' 192 193 cat $sysdcl $syscompat $sysncompat $sysent >$syssw 194 195 #chmod 444 $sysnames $syshdr $syssw 196
Indexes created Wed Oct 15 16:09:53 GMT 2025