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Generate another function for the DTrace syscall provider to specify

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the syscall argument types.

This code is only compiled into the systrace kernel modul and has no
effect otherwise.
This commit is contained in:
John Birrell 2008-03-27 01:53:44 +00:00
parent d97cdd3349
commit e994ea8e55
1 changed files with 14 additions and 2 deletions
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16
sys/kern/makesyscalls.sh
View file

@ -34,10 +34,11 @@ sysent="sysent.switch.$$"
sysinc="sysinc.switch.$$"
sysarg="sysarg.switch.$$"
sysprotoend="sysprotoend.$$"
systracetmp="systrace.$$"
trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $sysent $sysinc $sysarg $sysprotoend" 0
trap "rm $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp" 0
touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $sysent $sysinc $sysarg $sysprotoend
touch $sysaue $sysdcl $syscompat $syscompatdcl $syscompat4 $syscompat4dcl $syscompat6 $syscompat6dcl $sysent $sysinc $sysarg $sysprotoend $systracetmp
case $# in
0) echo "usage: $0 input-file <config-file>" 1>&2
@ -82,6 +83,7 @@ s/\$//g
syshdr = \"$syshdr\"
sysmk = \"$sysmk\"
systrace = \"$systrace\"
systracetmp = \"$systracetmp\"
compat = \"$compat\"
compat4 = \"$compat4\"
compat6 = \"$compat6\"
@ -160,6 +162,9 @@ s/\$//g
printf "\tint64_t *iarg = (int64_t *) uarg;\n" > systrace
printf "\tswitch (sysnum) {\n" > systrace
printf "static void\nsystrace_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)\n{\n\tconst char *p = NULL;\n" > systracetmp
printf "\tswitch (sysnum) {\n" > systracetmp
next
}
NF == 0 || $1 ~ /^;/ {
@ -317,9 +322,12 @@ s/\$//g
|| $3 == "NOIMPL" || $3 == "NOSTD" {
parseline()
printf("\t/* %s */\n\tcase %d: {\n", funcname, syscall) > systrace
printf("\t/* %s */\n\tcase %d:\n", funcname, syscall) > systracetmp
if (argc > 0) {
printf("\t\tswitch(ndx) {\n") > systracetmp
printf("\t\tstruct %s *p = params;\n", argalias) > systrace
for (i = 1; i <= argc; i++) {
printf("\t\tcase %d:\n\t\t\tp = \"%s\";\n\t\t\tbreak;\n", i - 1, argtype[i]) > systracetmp
if (index(argtype[i], "*") > 0 || argtype[i] == "caddr_t")
printf("\t\tuarg[%d] = (intptr_t) p->%s; /* %s */\n", \
i - 1, \
@ -333,8 +341,10 @@ s/\$//g
i - 1, \
argname[i], argtype[i]) > systrace
}
printf("\t\tdefault:\n\t\t\tbreak;\n\t\t};\n") > systracetmp
}
printf("\t\t*n_args = %d;\n\t\tbreak;\n\t}\n", argc) > systrace
printf("\t\tbreak;\n") > systracetmp
if ((!nosys || funcname != "nosys") && \
(funcname != "lkmnosys") && (funcname != "lkmressys")) {
if (argc != 0 && $3 != "NOARGS" && $3 != "NOPROTO") {
@ -529,6 +539,7 @@ s/\$//g
printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall) \
> syshdr
printf "\tdefault:\n\t\t*n_args = 0;\n\t\tbreak;\n\t};\n}\n" > systrace
printf "\tdefault:\n\t\tbreak;\n\t};\n\tif (p != NULL)\n\t\tstrlcpy(desc, p, descsz);\n}\n" > systracetmp
} '
cat $sysinc $sysent >> $syssw
@ -537,4 +548,5 @@ cat $sysarg $sysdcl \
$syscompat4 $syscompat4dcl \
$syscompat6 $syscompat6dcl \
$sysaue $sysprotoend > $sysproto
cat $systracetmp >> $systrace