Author: dchagin
Date: Sun Apr 28 09:49:30 2019
New Revision: 346811
URL: https://svnweb.freebsd.org/changeset/base/346811
Log:
MFC r328598 (by emaste@):
makesyscalls: permit a range of syscall numbers for UNIMPL
Some ABIs have large gaps in syscall numbers. Allow gaps to be filled
as ranges of UNIMPL, with an entry like:
248-1023 AUE_NULL UNIMPL unimplemented
Modified:
stable/11/sys/kern/makesyscalls.sh
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/kern/makesyscalls.sh
==============================================================================
--- stable/11/sys/kern/makesyscalls.sh Sun Apr 28 09:47:33 2019
(r346810)
+++ stable/11/sys/kern/makesyscalls.sh Sun Apr 28 09:49:30 2019
(r346811)
@@ -243,13 +243,6 @@ sed -e '
print > systraceret
next
}
- syscall != $1 {
- printf "%s: line %d: syscall number out of sync at %d\n",
- infile, NR, syscall
- printf "line is:\n"
- print
- exit 1
- }
# Returns true if the type "name" is the first flag in the type field
function type(name, flags, n) {
n = split($3, flags, /\|/)
@@ -263,6 +256,29 @@ sed -e '
return 1
return 0
}
+ {
+ n = split($1, syscall_range, /-/)
+ if (n == 1) {
+ syscall_range[2] = syscall_range[1]
+ } else if (n == 2) {
+ if (!type("UNIMPL")) {
+ printf "%s: line %d: range permitted only with
UNIMPL\n",
+ infile, NR
+ exit 1
+ }
+ } else {
+ printf "%s: line %d: invalid syscall number or range
%s\n",
+ infile, NR, $1
+ exit 1
+ }
+ }
+ syscall != syscall_range[1] {
+ printf "%s: line %d: syscall number out of sync at %d\n",
+ infile, NR, syscall
+ printf "line is:\n"
+ print
+ exit 1
+ }
function align_sysent_comment(column) {
printf("\t") > sysent
column = column + 8 - column % 8
@@ -593,11 +609,13 @@ sed -e '
next
}
type("UNIMPL") {
- printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0, 0, 0,
SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
- syscall, comment) > sysent
- printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
- syscall, syscall, comment) > sysnames
- syscall++
+ while (syscall <= syscall_range[2]) {
+ printf("\t{ 0, (sy_call_t *)nosys, AUE_NULL, NULL, 0,
0, 0, SY_THR_ABSENT },\t\t\t/* %d = %s */\n",
+ syscall, comment) > sysent
+ printf("\t\"#%d\",\t\t\t/* %d = %s */\n",
+ syscall, syscall, comment) > sysnames
+ syscall++
+ }
next
}
{
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