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Generate preprocessor macros for vop offsets in vfs op descs. And 

use these symbols in the desc structures instead of magic numbers.
No functional change, except VOP_FOO_DESCOFFSET macros in vnode_if.h.

wrstuden ok
This commit is contained in:
pooka 2006-11-30 21:06:29 +00:00
parent 7b4730a29f
commit d89a0720df
1 changed files with 10 additions and 10 deletions
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20
sys/kern/vnode_if.sh
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@ -29,7 +29,7 @@ copyright="\
* SUCH DAMAGE.
*/
"
SCRIPT_ID='$NetBSD: vnode_if.sh,v 1.42 2006/05/14 21:15:12 elad Exp $'
SCRIPT_ID='$NetBSD: vnode_if.sh,v 1.43 2006/11/30 21:06:29 pooka Exp $'
# Script to produce VFS front-end sugar.
#
@ -182,7 +182,8 @@ extern const struct vnodeop_desc vop_default_desc;
sed -e "$sed_prep" $src | $awk "$toupper"'
function doit() {
# Declare arg struct, descriptor.
printf("\nstruct %s_args {\n", name);
printf("\n#define %s_DESCOFFSET %d\n", toupper(name), vop_offset++);
printf("struct %s_args {\n", name);
printf("\tconst struct vnodeop_desc * a_desc;\n");
for (i=0; i<argc; i++) {
printf("\t%s a_%s;\n", argtype[i], argname[i]);
@ -206,13 +207,11 @@ function doit() {
protolen += arglen;
}
printf(");\n");
vops++;
}
BEGIN {
arg0special="";
vops = 1; # start at 1, to count the 'default' op
}
END {
vop_offset = 1; # start at 1, to count the 'default' op
printf("\n/* Special cases: */\n#include <sys/buf.h>\n");
argc=1;
argtype[0]="struct buf *";
@ -221,8 +220,10 @@ END {
arg0special="->b_vp";
name="vop_bwrite";
doit();
printf("\n#define VNODE_OPS_COUNT\t%d\n", vops);
printf("/* End of special cases */\n");
}
END {
printf("\n#define VNODE_OPS_COUNT\t%d\n", vop_offset);
}
'"$awk_parser" | sed -e "$anal_retentive"
@ -300,7 +301,7 @@ function doit() {
# Define F_desc
printf("const struct vnodeop_desc %s_desc = {\n", name);
# offset
printf ("\t%d,\n", vop_offset++);
printf ("\t%s_DESCOFFSET,\n", toupper(name));
# printable name
printf ("\t\"%s\",\n", name);
# flags
@ -370,7 +371,6 @@ function doit() {
BEGIN {
printf("\n/* Special cases: */\n");
# start from 1 (vop_default is at 0)
vop_offset=1;
argc=1;
argdir[0]="IN";
argtype[0]="struct buf *";