freebsd-skq/lib/libsysdecode/mkioctls
kp 112fb3abf7 Handle WITH/WITHOUT_PF in libsysdecode
Only filter out the PF ioctls if we're building without pf support.
Until now those were always filtered out, so truss did not show symbolic
names for pf ioctls.

Differential Revision:	https://reviews.freebsd.org/D11629
2017-07-22 12:51:19 +00:00

95 lines
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#!/bin/sh
#
# $FreeBSD$
set -e
if [ $# -ne 1 ]; then
echo "usage: sh $0 include-dir"
exit 1
fi
includedir="$1"
LC_ALL=C; export LC_ALL
# Build a list of headers that have ioctls in them.
# XXX should we use an ANSI cpp?
ioctl_includes=$(
cd $includedir
filter='tee'
if [ "${MK_PF}" == "no" ]; then
filter='egrep -v (net/pfvar|net/if_pfsync)\.h'
fi
find -H -s * -name '*.h' | \
$filter | \
xargs egrep -l \
'^#[ ]*define[ ]+[A-Za-z_][A-Za-z0-9_]*[ ]+_IO[^a-z0-9_]' |
awk '{printf("#include <%s>\\n", $1)}'
)
awk -v x="$ioctl_includes" 'BEGIN {print x}' |
$CPP -nostdinc -I$includedir -dM -DCOMPAT_43TTY - |
awk -v ioctl_includes="$ioctl_includes" '
BEGIN {
print "/* XXX obnoxious prerequisites. */"
print "#define COMPAT_43"
print "#define COMPAT_43TTY"
print "#include <sys/param.h>"
print "#include <sys/devicestat.h>"
print "#include <sys/disklabel.h>"
print "#include <sys/socket.h>"
print "#include <sys/time.h>"
print "#include <sys/tty.h>"
print "#include <bsm/audit.h>"
print "#include <net/ethernet.h>"
print "#include <net/if.h>"
print "#ifdef PF"
print "#include <net/pfvar.h>"
print "#include <net/if_pfsync.h>"
print "#endif"
print "#include <net/route.h>"
print "#include <netinet/in.h>"
print "#include <netinet/ip_mroute.h>"
print "#include <netinet6/in6_var.h>"
print "#include <netinet6/nd6.h>"
print "#include <netinet6/ip6_mroute.h>"
print "#include <stdio.h>"
print "#include <cam/cam.h>"
print "#include <stdbool.h>"
print "#include <stddef.h>"
print "#include <stdint.h>"
print "#include <sysdecode.h>"
print ""
print ioctl_includes
print ""
print "const char *"
print "sysdecode_ioctlname(unsigned long val)"
print "{"
print "\tconst char *str = NULL;"
print ""
}
/^#[ ]*define[ ]+[A-Za-z_][A-Za-z0-9_]*[ ]+_IO/ {
# find where the name starts
for (i = 1; i <= NF; i++)
if ($i ~ /define/)
break;
++i;
#
printf("\t");
if (n++ > 0)
printf("else ");
printf("if (val == %s)\n", $i);
printf("\t\tstr = \"%s\";\n", $i);
}
END {
print ""
print "\treturn (str);"
print "}"
}
'