projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b1bc1a87 | 1 | #! /bin/sh - |
| 020e002c | 2 | # @(#)makesyscalls.sh 7.1 (Berkeley) %G% |
| b1bc1a87 MK |
3 | |
| 4 | # name of compat option: | |
| 5 | compat=COMPAT_43 | |
| 6 | ||
| 7 | # output files: | |
| 8 | sysnames="syscalls.c" | |
| 9 | syshdr="syscall.h" | |
| 10 | syssw="init_sysent.c" | |
| 11 | ||
| 12 | # tmp files: | |
| 13 | sysdcl="sysent.dcl" | |
| 14 | syscompat="sysent.compat" | |
| 15 | sysent="sysent.switch" | |
| 16 | ||
| 17 | case $# in | |
| 18 | 0) echo "Usage: $0 input-file" 1>&2 | |
| 19 | exit 1 | |
| 20 | ;; | |
| 21 | esac | |
| 22 | ||
| 23 | awk < $1 " | |
| 24 | BEGIN { | |
| 25 | sysdcl = \"$sysdcl\" | |
| 26 | syscompat = \"$syscompat\" | |
| 27 | sysent = \"$sysent\" | |
| 28 | sysnames = \"$sysnames\" | |
| 29 | syshdr = \"$syshdr\" | |
| 30 | compat = \"$compat\" | |
| 31 | "' | |
| 32 | ||
| 33 | printf "/*\n * System call switch table.\n *\n" > sysdcl | |
| 34 | printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysdcl | |
| 35 | ||
| 36 | printf "\n#ifdef %s\n", compat > syscompat | |
| 37 | printf "#define compat(n, name) n, o/**/name\n\n" > syscompat | |
| 38 | ||
| 39 | printf "/*\n * System call names.\n *\n" > sysnames | |
| 40 | printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames | |
| 41 | ||
| 42 | printf "/*\n * System call numbers.\n *\n" > syshdr | |
| 43 | printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr | |
| 44 | } | |
| 45 | NR == 1 { | |
| 46 | printf " * created from%s\n */\n\n", $0 > sysdcl | |
| 47 | printf "#include \"param.h\"\n" > sysdcl | |
| 48 | printf "#include \"systm.h\"\n\n" > sysdcl | |
| 49 | printf "int\tnosys();\n\n" > sysdcl | |
| 50 | ||
| 51 | printf "struct sysent sysent[] = {\n" > sysent | |
| 52 | ||
| 53 | printf " * created from%s\n */\n\n", $0 > sysnames | |
| 54 | printf "char *syscallnames[] = {\n" > sysnames | |
| 55 | ||
| 56 | printf " * created from%s\n */\n\n", $0 > syshdr | |
| 57 | next | |
| 58 | } | |
| 59 | NF == 0 || $1 ~ /^;/ { | |
| 60 | next | |
| 61 | } | |
| 62 | $1 ~ /^#[ ]*if/ { | |
| 63 | print > sysent | |
| 64 | print > sysdcl | |
| 65 | print > syscompat | |
| 66 | print > sysnames | |
| 67 | savesyscall = syscall | |
| 68 | next | |
| 69 | } | |
| 70 | $1 ~ /^#[ ]*else/ { | |
| 71 | print > sysent | |
| 72 | print > sysdcl | |
| 73 | print > syscompat | |
| 74 | print > sysnames | |
| 75 | syscall = savesyscall | |
| 76 | next | |
| 77 | } | |
| 78 | $1 ~ /^#/ { | |
| 79 | print > sysent | |
| 80 | print > sysdcl | |
| 81 | print > syscompat | |
| 82 | print > sysnames | |
| 83 | next | |
| 84 | } | |
| 85 | syscall != $1 { | |
| 86 | printf "syscall number out of sync at %d; line is:\n", syscall | |
| 87 | ||
| 88 | exit 1 | |
| 89 | } | |
| 90 | { comment = $4 | |
| 91 | for (i = 5; i <= NF; i++) | |
| 92 | comment = comment " " $i | |
| 93 | if (NF < 5) | |
| 94 | $5 = $4 | |
| 95 | } | |
| 96 | $2 == "STD" { | |
| 97 | printf("int\t%s();\n", $4) > sysdcl | |
| 98 | printf("\t%d, %s,\t\t\t/* %d = %s */\n", \ | |
| 99 | $3, $4, syscall, $5) > sysent | |
| 100 | printf("\t\"%s\",\t\t\t/* %d = %s */\n", \ | |
| 101 | $5, syscall, $5) > sysnames | |
| 102 | printf("#define\tSYS_%s\t%d\n", \ | |
| 103 | $5, syscall) > syshdr | |
| 104 | } | |
| 105 | $2 == "COMPAT" { | |
| 106 | printf("int\to%s();\n", $4) > syscompat | |
| 107 | printf("\tcompat(%d,%s),\t\t/* %d = old %s */\n", \ | |
| 108 | $3, $4, syscall, $5) > sysent | |
| 109 | printf("\t\"old %s\",\t\t/* %d = old %s */\n", \ | |
| 110 | $5, syscall, $5) > sysnames | |
| 111 | printf("\t\t\t\t/* %d is old %s */\n", \ | |
| 112 | syscall, comment) > syshdr | |
| 113 | } | |
| 114 | $2 == "OBSOL" { | |
| 115 | printf("\t0, nosys,\t\t\t/* %d = obsolete %s */\n", \ | |
| 116 | syscall, comment) > sysent | |
| 117 | printf("\t\"obs %s\",\t\t\t/* %d = obsolete %s */\n", \ | |
| 118 | $4, syscall, comment) > sysnames | |
| 119 | printf("\t\t\t\t/* %d is obsolete %s */\n", \ | |
| 120 | syscall, comment) > syshdr | |
| 121 | } | |
| 122 | $2 == "UNIMPL" { | |
| 123 | printf("\t0, nosys,\t\t\t/* %d = %s */\n", \ | |
| 124 | syscall, comment) > sysent | |
| 125 | printf("\t\"#%d\",\t\t\t/* %d = %s */\n", \ | |
| 126 | syscall, syscall, comment) > sysnames | |
| 127 | } | |
| 128 | { syscall++ } | |
| 129 | END { | |
| 130 | printf("\n#else /* %s */\n", compat) > syscompat | |
| 131 | printf("#define compat(n, name) 0, nosys\n") > syscompat | |
| 132 | printf("#endif /* %s */\n\n", compat) > syscompat | |
| 133 | ||
| 134 | printf("};\n\n") > sysent | |
| 135 | printf("int\tnsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent | |
| 136 | ||
| 137 | printf("};\n") > sysnames | |
| 138 | } ' | |
| 139 | ||
| 140 | cat $sysdcl $syscompat $sysent >$syssw | |
| 141 | rm $sysdcl $syscompat $sysent |