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Annotation of src/sys/rump/makerumpsyscalls.sh, Revision 1.2

1.1       pooka       1: #!/bin/sh
                      2: #
1.2     ! pooka       3: #      $NetBSD: makerumpsyscalls.sh,v 1.1 2014/04/27 15:05:30 pooka Exp $
1.1       pooka       4: #
                      5:
                      6: #
                      7: # This utility generates component-specific initializers for the
                      8: # rump kernel syscall vector.
                      9: #
                     10: # Procedure is:
                     11: #   1) edit syscalls.master
                     12: #   2) run makesyscalls.sh
                     13: #   3) do a build in sys/rump
                     14: #   4) run this script
                     15: #   5) commit results
                     16: #
                     17:
                     18: # default, override by giving argument
                     19: LIBDIR=/usr/lib
                     20:
                     21: SYSCOMPONENT_librump=librump/rumpkern/rumpkern_syscalls.c
                     22: SYSCOMPONENT_librumpnet=librump/rumpnet/rumpnet_syscalls.c
                     23: SYSCOMPONENT_librumpvfs=librump/rumpvfs/rumpvfs_syscalls.c
                     24:
                     25: die ()
                     26: {
                     27:
                     28:        echo '>> ERROR:' $*
                     29:        exit 1
                     30: }
                     31:
                     32: [ -f "./rump.sysmap" ] || die rump.sysmap not found
                     33: [ -f "./Makefile.rump" ] || die run script in src/sys/rump
                     34: [ -z "${1}" ] || LIBDIR=$1
                     35:
                     36: #
                     37: # BEGIN
                     38: #
                     39:
                     40: IFS=' '
                     41: AWKPROG='BEGIN {
                     42:        while ((getline < "rump.sysmap") == 1) {
                     43:                if ($2 != "sys_nomodule")
                     44:                        syscalls[$2] = $1
                     45:        }
                     46: }
                     47:
                     48: $5 == "GLOBAL" && $7 != "UND" {
                     49:        sub("rumpns_", "", $8)
                     50:        if (syscalls[$8] != 0)
                     51:                results[$8] = 1
                     52: }
                     53:
                     54: END {
                     55:        for (res in results) {
                     56:                printf "%d %s\n", syscalls[res], res | "sort -n"
                     57:        }
                     58: }
                     59: '
                     60:
1.2     ! pooka      61: SYSCOMP_HDR='/*        $NetBSD: makerumpsyscalls.sh,v 1.1 2014/04/27 15:05:30 pooka Exp $      */
1.1       pooka      62:
                     63: /* AUTOMATICALLY GENERATED BY makerumpsyscalls.sh */
                     64:
                     65: #include <sys/cdefs.h>
1.2     ! pooka      66: __KERNEL_RCSID(0, "$NetBSD: makerumpsyscalls.sh,v 1.1 2014/04/27 15:05:30 pooka Exp $");
1.1       pooka      67:
                     68: #include <sys/param.h>
                     69:
                     70: #include "rump_private.h"
                     71: '
                     72:
                     73: SYSCOMP_BODY='
                     74: RUMP_COMPONENT(RUMP_COMPONENT_SYSCALL)
                     75: {
                     76:
                     77:        rump_syscall_boot_establish(mysys, __arraycount(mysys));
                     78: }'
                     79:
                     80: makesyscomponent ()
                     81: {
                     82:
                     83:        echo Generating $1
                     84:        exec 3>&1 >${1}
                     85:
                     86:        echo "${SYSCOMP_HDR}"
                     87:
1.2     ! pooka      88:        echo ${2} | awk '{printf "extern sy_call_t %s;\n", $2}'
1.1       pooka      89:        printf '\nstatic const struct rump_onesyscall mysys[] = {\n'
                     90:        echo ${2} | awk '{printf "\t{ %d,\t%s },\n", $1, $2}'
                     91:        printf '};\n'
                     92:
                     93:        echo "${SYSCOMP_BODY}"
                     94:
                     95:        exec 1>&3
                     96: }
                     97:
                     98: sawlibrump=false
                     99: for file in ${LIBDIR}/librump*.so ; do
                    100:        b=$(basename ${file})
                    101:        b=${b%%.*}
                    102:        res=$(readelf -W --syms ${file} | awk "${AWKPROG}")
                    103:        if [ ! -z "${res}" ]; then
                    104:                eval outname=\${SYSCOMPONENT_${b}}
                    105:                [ -z "${outname}" ] && die Unknown syscall provider $b
                    106:                makesyscomponent $outname "$res"
                    107:
                    108:                [ $b = "librump" ] && sawlibrump=true
                    109:        fi
                    110: done
                    111:
                    112: ${sawlibrump} || die Did not see librump.  Wrong directory?