makesyscalls.sh revision 1.7
1 #! /bin/sh - 2 # from: @(#)makesyscalls.sh 7.6 (Berkeley) 4/20/91 3 # $Id: makesyscalls.sh,v 1.7 1994/05/17 00:01:00 cgd 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 printf "#ifndef _SYS_SYSCALL_H\n" > syshdr 71 printf "#define _SYS_SYSCALL_H\n" > syshdr 72 printf "\n" > syshdr 73 next 74 } 75 NF == 0 || $1 ~ /^;/ { 76 next 77 } 78 $1 ~ /^#[ ]*if/ { 79 print > sysent 80 print > sysdcl 81 print > syscompat 82 print > sysnames 83 savesyscall = syscall 84 next 85 } 86 $1 ~ /^#[ ]*else/ { 87 print > sysent 88 print > sysdcl 89 print > syscompat 90 print > sysnames 91 syscall = savesyscall 92 next 93 } 94 $1 ~ /^#/ { 95 print > sysent 96 print > sysdcl 97 print > syscompat 98 print > sysnames 99 next 100 } 101 syscall != $1 { 102 printf "%s: line %d: syscall number out of sync at %d\n", \ 103 infile, NR, syscall 104 printf "line is:\n" 105 print 106 exit 1 107 } 108 { comment = $4 109 for (i = 5; i <= NF; i++) 110 comment = comment " " $i 111 if (NF < 5) 112 $5 = $4 113 } 114 $2 == "STD" || $2 == "NODEF" { 115 printf("int\t%s();\n", $4) > sysdcl 116 printf("\t%d, %s,\t\t\t/* %d = %s */\n", \ 117 $3, $4, syscall, $5) > sysent 118 printf("\t\"%s\",\t\t\t/* %d = %s */\n", \ 119 $5, syscall, $5) > sysnames 120 if ($2 == "STD") 121 printf("#define\tSYS_%s\t%d\n", \ 122 $5, syscall) > syshdr 123 syscall++ 124 next 125 } 126 $2 == "COMPAT" { 127 printf("int\to%s();\n", $4) > syscompat 128 printf("\tcompat(%d,%s),\t\t/* %d = old %s */\n", \ 129 $3, $4, syscall, $5) > sysent 130 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 131 $5, syscall, $5) > sysnames 132 printf("\t\t\t\t/* %d is old %s */\n", \ 133 syscall, comment) > syshdr 134 syscall++ 135 next 136 } 137 $2 == "NCOMPAT" { 138 printf("int\to%s();\n", $4) > sysncompat 139 printf("\tncompat(%d,%s),\t\t/* %d = old %s */\n", \ 140 $3, $4, syscall, $5) > sysent 141 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 142 $5, syscall, $5) > sysnames 143 printf("\t\t\t\t/* %d is old %s */\n", \ 144 syscall, comment) > syshdr 145 syscall++ 146 next 147 } 148 $2 == "LIBCOMPAT" { 149 printf("int\to%s();\n", $4) > syscompat 150 printf("\tcompat(%d,%s),\t\t/* %d = old %s */\n", \ 151 $3, $4, syscall, $5) > sysent 152 printf("\t\"old.%s\",\t\t/* %d = old %s */\n", \ 153 $5, syscall, $5) > sysnames 154 printf("#define\tSYS_%s\t%d\t/* compatibility; still used by libc */\n", \ 155 $5, syscall) > syshdr 156 syscall++ 157 next 158 } 159 $2 == "OBSOL" { 160 printf("\t0, nosys,\t\t\t/* %d = obsolete %s */\n", \ 161 syscall, comment) > sysent 162 printf("\t\"obs_%s\",\t\t\t/* %d = obsolete %s */\n", \ 163 $4, syscall, comment) > sysnames 164 printf("\t\t\t\t/* %d is obsolete %s */\n", \ 165 syscall, comment) > syshdr 166 syscall++ 167 next 168 } 169 $2 == "UNIMPL" { 170 printf("\t0, nosys,\t\t\t/* %d = %s */\n", \ 171 syscall, comment) > sysent 172 printf("\t\"#%d\",\t\t\t/* %d = %s */\n", \ 173 syscall, syscall, comment) > sysnames 174 syscall++ 175 next 176 } 177 { 178 printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2 179 exit 1 180 } 181 END { 182 printf("\n#else /* %s */\n", compat) > syscompat 183 printf("#define compat(n, name) 0, nosys\n") > syscompat 184 printf("#endif /* %s */\n\n", compat) > syscompat 185 186 printf("\n#else /* %s */\n", compat) > sysncompat 187 printf("#define ncompat(n, name) 0, nosys\n") > sysncompat 188 printf("#endif /* %s */\n\n", compat) > sysncompat 189 190 printf("};\n\n") > sysent 191 printf("int\tnsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent 192 193 printf("};\n") > sysnames 194 195 printf "\n" > syshdr 196 printf "#endif /* _SYS_SYSCALL_H */\n" > syshdr 197 } ' 198 199 cat $sysdcl $syscompat $sysncompat $sysent >$syssw 200 201 #chmod 444 $sysnames $syshdr $syssw 202
Indexes created Mon Oct 13 08:09:50 GMT 2025