#!/bin/sh
# Generate system call probe description macros from syscall metadata dump file.
+# The resulting header will be written in the headers subdirectory, in a file name
+# based on the name of the input file.
+#
# example usage:
#
-# lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4
-# lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4
+# lttng-syscalls-generate-headers.sh <type> <input_dir> <input_filename_in_dir> <bitness>
+# lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4 64
+# lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4 64
CLASS=$1
INPUTDIR=$2
INPUTFILE=$3
+BITNESS=$4
INPUT=${INPUTDIR}/${INPUTFILE}
SRCFILE=gen.tmp.0
TMPFILE=gen.tmp.1
HEADER=headers/${INPUTFILE}_${CLASS}.h
+if [ x"$INPUTDIR" = x"" ]; then
+ echo "Error: Please specify input directory as second argument"
+ exit 1
+fi
+
+if [ x"$INPUTFILE" = x"" ]; then
+ echo "Error: Please specify input file as third argument"
+ exit 1
+fi
+
+if [ x"$BITNESS" != x"32" ] && [ x"$BITNESS" != x"64" ]; then
+ echo "Error: Please specify bitness as fourth argument (\"32\" or \"64\")"
+ exit 1
+fi
+
cp ${INPUT} ${SRCFILE}
#Cleanup
mv ${TMPFILE} ${SRCFILE}
fi
+if [ x"$CLASSCAP" = x"" ]; then
+ echo "Error: Please specify \"integers\" or \"pointers\" as first argument"
+ rm -f ${SRCFILE}
+ exit 1
+fi
+
echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
echo \
#include <linux/tracepoint.h>
#include <linux/syscalls.h>
#include \"${INPUTFILE}_${CLASS}_override.h\"
+#include \"syscalls_${CLASS}_override.h\"
" >> ${HEADER}
if [ "$CLASS" = integers ]; then
NRARGS=0
-echo \
+printf \
'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
' TP_STRUCT__entry(),\n'\
' TP_fast_assign(),\n'\
' TP_printk()\n'\
-')'\
+')\n'\
>> ${HEADER}
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^)]*)\) '\
'args: \(([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\
'#endif/g'\
${TMPFILE} >> ${HEADER}
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^)]*)\) '\
'args: \(([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $5),\n'\
' TP_ARGS($5),\n'\
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^,]*), ([^)]*)\) '\
'args: \(([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $6, $5 $7),\n'\
' TP_ARGS($6, $7),\n'\
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^,]*), ([^,]*), ([^)]*)\) '\
'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\
' TP_ARGS($7, $8, $9),\n'\
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\
' TP_ARGS($8, $9, $10, $11),\n'\
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\
' TP_ARGS($9, $10, $11, $12, $13),\n'\
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\
'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\
-'#ifndef OVERRIDE_sys_$1\n'\
+'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
'SC_TRACE_EVENT(sys_$1,\n'\
' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\
' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\
# Macro for tracing syscall table
-rm -f ${TMPFILE}
-for NRARGS in $(seq 0 6); do
- grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE}
-done
-
echo \
"
#endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */
#else /* CREATE_SYSCALL_TABLE */
#include \"${INPUTFILE}_${CLASS}_override.h\"
+#include \"syscalls_${CLASS}_override.h\"
" >> ${HEADER}
NRARGS=0
#noargs
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
-'#ifndef OVERRIDE_TABLE_sys_$1\n'\
+'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\
'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\
'#endif/g'\
${TMPFILE} >> ${HEADER}
#others.
grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
-'#ifndef OVERRIDE_TABLE_sys_$1\n'\
+'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\
'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\
'#endif/g'\
${TMPFILE} >> ${HEADER}
# or *put_old* or *type*
cp -f ${HEADER} ${TMPFILE}
rm -f ${HEADER}
-perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string($2$3$4, $2$3$4)/g'\
+perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string_from_user($2$3$4, $2$3$4)/g'\
${TMPFILE} >> ${HEADER}
cp -f ${HEADER} ${TMPFILE}
rm -f ${HEADER}