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Generate code to interpret ioctl numbers for all ioctls defined in

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headers under /usr/include, not just for the ones in <sys/ioctl.h>.
The generated file includes all headers that seem to define ioctls,
so build errors will probably occur if headers become less self-
sufficient than they are already.  This is a feature.  Build errors
shall not be fixed by adding more includes here.

Optionally generate a case statement instead of a list of if
statements.  This source must be edited to change this.  The case
statement should be non-optional.  It currently can't be, because
many ioctl numbers are not unique.
This commit is contained in:
Bruce Evans 1998-10-16 15:33:17 +00:00
parent 97ed3f88a4
commit 511a1b6f79
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=40455
1 changed files with 55 additions and 17 deletions
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72
usr.bin/kdump/mkioctls
View File

@ -1,29 +1,62 @@
set -e
# Build a list of headers that have ioctls in them.
# XXX should we use an ANSI cpp?
# XXX does -I$DESTDIR/usr/include actually work?
(echo "#include <sys/ioctl.h>"
echo "#include <sys/ioctl_compat.h>"
) | cpp -I$DESTDIR/usr/include -dM | awk '
# XXX netipx conflicts with netns (leave out netns).
ioctl_includes=`
cd $DESTDIR/usr/include
find * -name '*.h' -follow |
egrep -v '^(netns)/' |
xargs egrep -l \
'^#[ ]*define[ ]+[A-Za-z_][A-Za-z0-0_]*[ ]+_IO[^a-z0-9_]' |
sed -e 's/^/#include </' -e s'/$/>/'
`
echo "$ioctl_includes" |
cpp -I$DESTDIR/usr/include -dM |
awk -v ioctl_includes="$ioctl_includes" '
BEGIN {
print "#include <sys/param.h>"
print "#include <sys/queue.h>"
print "#include <sys/socket.h>"
print "#include <sys/socketvar.h>"
print "#include <sys/time.h>"
print "#include <net/route.h>"
print "#include <net/if.h>"
print "#include <netinet/in.h>"
print "#include <netinet/ip_mroute.h>"
print "#include <sys/termios.h>"
print "/* XXX obnoxious prerequisites. */"
print "#define COMPAT_43"
print "#include <sys/ioctl.h>"
print "#include <sys/param.h>"
print "#include <sys/device.h>"
print "#include <sys/devicestat.h>"
print "#include <sys/disklabel.h>"
print "#include <sys/disk.h>"
print "#include <sys/dkbad.h>"
print "#include <sys/socket.h>"
print "#include <sys/time.h>"
print "#include <sys/tty.h>"
print "#include <net/if.h>"
print "#include <net/if_var.h>"
print "#include <net/route.h>"
print "#include <netatm/atm.h>"
print "#include <netatm/atm_if.h>"
print "#include <netatm/atm_sap.h>"
print "#include <netatm/atm_sys.h>"
print "#include <netinet/in.h>"
print "#include <netinet/ip_compat.h>"
print "#include <netinet/ip_fil.h>"
print "#include <netinet/ip_auth.h>"
print "#include <netinet/ip_nat.h>"
print "#include <netinet/ip_frag.h>"
print "#include <netinet/ip_mroute.h>"
print "#include <netinet/ip_state.h>"
print "#include <cam/cam.h>"
print "#include <stdio.h>"
print ""
print ioctl_includes
print ""
print "char *"
print "ioctlname(val)"
print "{"
print ""
generate_case_statement = 0
if (generate_case_statement)
print "\tswitch(val) {"
}
/^#[ ]*define[ ]*(TIO|FIO|SIO|OSIO)[A-Z]*[ ]*_IO/ {
/^#[ ]*define[ ]+[A-Za-z_][A-Za-z0-9_]*[ ]+_IO/ {
# find where the name starts
for (i = 1; i <= NF; i++)
@ -31,10 +64,15 @@ BEGIN {
break;
++i;
#
printf("\tif (val == %s)\n\t\treturn(\"%s\");\n", $i, $i);
if (generate_case_statement)
printf("\tcase %s:\n\t\treturn(\"%s\");\n", $i, $i);
else
printf("\tif (val == %s)\n\t\treturn(\"%s\");\n", $i, $i);
}
END {
if (generate_case_statement)
print "\t}"
print "\n\treturn(NULL);"
print "}"
}