[lttng-modules.git] / instrumentation / syscalls / lttng-syscalls-generate-headers.sh

#!/bin/sh

# Generate system call probe description macros from syscall metadata dump 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

CLASS=$1
INPUTDIR=$2
INPUTFILE=$3
INPUT=${INPUTDIR}/${INPUTFILE}
SRCFILE=gen.tmp.0
TMPFILE=gen.tmp.1

cp ${INPUT} ${SRCFILE}

#Cleanup
sed 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE}
mv ${TMPFILE} ${SRCFILE}

sed 's/^syscall sys_\([^ ]*\)/syscall \1/g' ${SRCFILE} > ${TMPFILE}
mv ${TMPFILE} ${SRCFILE}

#Filter

if [ "$CLASS" = integers ]; then
	#select integers and no-args.
	grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
	mv ${TMPFILE} ${SRCFILE}
fi


if [ "$CLASS" = pointers ]; then
	#select system calls using pointers.
	grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
	mv ${TMPFILE} ${SRCFILE}
fi

HEADER=headers/${INPUTFILE}-${CLASS}.h

echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}

echo \
"#ifndef CREATE_SYSCALL_TABLE

#undef TRACE_SYSTEM
#define TRACE_SYSTEM syscalls

#if !defined(_TRACE_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SYSCALLS_H

#include <linux/tracepoint.h>
#include <linux/syscalls.h>
" >> ${HEADER}

if [ "$CLASS" = integers ]; then

NRARGS=0

echo \
'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
'	TP_STRUCT__entry(),\n'\
'	TP_fast_assign(),\n'\
'	TP_printk()\n'\
')'\
	>> ${HEADER}

grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^)]*\)) '\
'args: (\([^)]*\))/'\
'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_\1)'\
'/g'\
	${TMPFILE} >> ${HEADER}

fi

# types: 4
# args   5

NRARGS=1
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^)]*\)) '\
'args: (\([^)]*\))/'\
'TRACE_EVENT(sys_\1,\n'\
'	TP_PROTO(\4 \5),\n'\
'	TP_ARGS(\5),\n'\
'	TP_STRUCT__entry(__field(\4, \5)),\n'\
'	TP_fast_assign(tp_assign(\5, \5)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}

# types: 4 5
# args   6 7

NRARGS=2
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^,]*\), \([^)]*\)) '\
'args: (\([^,]*\), \([^)]*\))/'\
'TRACE_EVENT(sys_\1,\n'\
'	TP_PROTO(\4 \6, \5 \7),\n'\
'	TP_ARGS(\6, \7),\n'\
'	TP_STRUCT__entry(__field(\4, \6) __field(\5, \7)),\n'\
'	TP_fast_assign(tp_assign(\6, \6) tp_assign(\7, \7)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}

# types: 4 5 6
# args   7 8 9

NRARGS=3
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^,]*\), \([^,]*\), \([^)]*\)) '\
'args: (\([^,]*\), \([^,]*\), \([^)]*\))/'\
'TRACE_EVENT(sys_\1,\n'\
'	TP_PROTO(\4 \7, \5 \8, \6 \9),\n'\
'	TP_ARGS(\7, \8, \9),\n'\
'	TP_STRUCT__entry(__field(\4, \7) __field(\5, \8) __field(\6, \9)),\n'\
'	TP_fast_assign(tp_assign(\7, \7) tp_assign(\8, \8) tp_assign(\9, \9)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}


# types: 4 5  6  7
# args   8 9 10 11

NRARGS=4
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\
'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\
'TRACE_EVENT(sys_\1,\n'\
'	TP_PROTO(\4 \8, \5 \9, \6 \10, \7 \11),\n'\
'	TP_ARGS(\8, \9, \10, \11),\n'\
'	TP_STRUCT__entry(__field(\4, \8) __field(\5, \9) __field(\6, \10) __field(\7, \11)),\n'\
'	TP_fast_assign(tp_assign(\8, \8) tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}

# types: 4  5  6  7  8
# args   9 10 11 12 13

NRARGS=5
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\
'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\
'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'\
'	TP_STRUCT__entry(__field(\4, \9) __field(\5, \10) __field(\6, \11) __field(\7, \12) __field(\8, \13)),\n'\
'	TP_fast_assign(tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, \12) tp_assign(\13, \13)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}


# types: 4   5  6  7  8  9
# args   10 11 12 13 14 15

NRARGS=6
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\
'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\
'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'\
'	TP_STRUCT__entry(__field(\4, \10) __field(\5, \11) __field(\6, \12) __field(\7, \13) __field(\8, \14) __field(\9, \15)),\n'\
'	TP_fast_assign(tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, 12) tp_assign(\13, \13) tp_assign(\14, \14) tp_assign(\15, \15)),\n'\
'	TP_printk()\n'\
')/g'\
	${TMPFILE} >> ${HEADER}

# 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_H */

/* This part must be outside protection */
#include \"../../../probes/define_trace.h\"

#else /* CREATE_SYSCALL_TABLE */
" >> ${HEADER}


NRARGS=0

if [ "$CLASS" = integers ]; then
#noargs
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\
'TRACE_SYSCALL_TABLE(syscalls_noargs, sys_\1, \2, \3)/g'\
	${TMPFILE} >> ${HEADER}
fi

#others.
grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\
'TRACE_SYSCALL_TABLE(sys_\1, sys_\1, \2, \3)/g'\
	${TMPFILE} >> ${HEADER}

echo -n \
"
#endif /* CREATE_SYSCALL_TABLE */
" >> ${HEADER}

rm -f ${INPUTFILE}.tmp
rm -f ${TMPFILE}
rm -f ${SRCFILE}
Commit	Line	Data
5fee13fd MD	1	#!/bin/sh
	2
	3	# Generate system call probe description macros from syscall metadata dump file.
	4	# example usage:
25631135 MD	5	#
	6	# lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4
	7	# lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4
5fee13fd	8
25631135 MD	9	CLASS=$1
	10	INPUTDIR=$2
	11	INPUTFILE=$3
5fee13fd MD	12	INPUT=${INPUTDIR}/${INPUTFILE}
	13	SRCFILE=gen.tmp.0
	14	TMPFILE=gen.tmp.1
	15
	16	cp ${INPUT} ${SRCFILE}
	17
	18	#Cleanup
	19	sed 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE}
	20	mv ${TMPFILE} ${SRCFILE}
	21
	22	sed 's/^syscall sys_\([^ ]*\)/syscall \1/g' ${SRCFILE} > ${TMPFILE}
	23	mv ${TMPFILE} ${SRCFILE}
	24
	25	#Filter
	26
25631135 MD	27	if [ "$CLASS" = integers ]; then
	28	#select integers and no-args.
	29	grep -v "\\*\\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
	30	mv ${TMPFILE} ${SRCFILE}
	31	fi
	32
5fee13fd	33
25631135 MD	34	if [ "$CLASS" = pointers ]; then
	35	#select system calls using pointers.
	36	grep "\\*\\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
	37	mv ${TMPFILE} ${SRCFILE}
	38	fi
5fee13fd	39
5fee13fd MD	40	HEADER=headers/${INPUTFILE}-${CLASS}.h
	41
	42	echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
	43
	44	echo \
054f2ed3 MD	45	"#ifndef CREATE_SYSCALL_TABLE
	46
	47	#undef TRACE_SYSTEM
e41e2e82	48	#define TRACE_SYSTEM syscalls
5fee13fd	49
e41e2e82 MD	50	#if !defined(_TRACE_SYSCALLS_H) \|\| defined(TRACE_HEADER_MULTI_READ)
e41e2e82 MD	51	#define _TRACE_SYSCALLS_H
5fee13fd MD	52
	53	#include <linux/tracepoint.h>
	54	#include <linux/syscalls.h>
	55	" >> ${HEADER}
	56
25631135 MD	57	if [ "$CLASS" = integers ]; then
25631135 MD	58
f7bdf4db MD	59	NRARGS=0
	60
	61	echo \
	62	'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
	63	' TP_STRUCT__entry(),\n'\
	64	' TP_fast_assign(),\n'\
	65	' TP_printk()\n'\
	66	')'\
	67	>> ${HEADER}
	68
	69	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	70	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	71	'types: (\([^)]*\)) '\
	72	'args: (\([^)]*\))/'\
	73	'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_\1)'\
	74	'/g'\
	75	${TMPFILE} >> ${HEADER}
	76
25631135	77	fi
5fee13fd MD	78
	79	# types: 4
	80	# args 5
	81
	82	NRARGS=1
	83	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	84	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	85	'types: (\([^)]*\)) '\
	86	'args: (\([^)]*\))/'\
	87	'TRACE_EVENT(sys_\1,\n'\
	88	' TP_PROTO(\4 \5),\n'\
	89	' TP_ARGS(\5),\n'\
	90	' TP_STRUCT__entry(__field(\4, \5)),\n'\
	91	' TP_fast_assign(tp_assign(\5, \5)),\n'\
	92	' TP_printk()\n'\
	93	')/g'\
	94	${TMPFILE} >> ${HEADER}
	95
	96	# types: 4 5
	97	# args 6 7
	98
	99	NRARGS=2
	100	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	101	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	102	'types: (\([^,]\), \([^)]\)) '\
	103	'args: (\([^,]\), \([^)]\))/'\
	104	'TRACE_EVENT(sys_\1,\n'\
	105	' TP_PROTO(\4 \6, \5 \7),\n'\
	106	' TP_ARGS(\6, \7),\n'\
	107	' TP_STRUCT__entry(__field(\4, \6) __field(\5, \7)),\n'\
	108	' TP_fast_assign(tp_assign(\6, \6) tp_assign(\7, \7)),\n'\
	109	' TP_printk()\n'\
	110	')/g'\
	111	${TMPFILE} >> ${HEADER}
	112
	113	# types: 4 5 6
	114	# args 7 8 9
	115
	116	NRARGS=3
	117	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	118	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	119	'types: (\([^,]\), \([^,]\), \([^)]*\)) '\
	120	'args: (\([^,]\), \([^,]\), \([^)]*\))/'\
	121	'TRACE_EVENT(sys_\1,\n'\
	122	' TP_PROTO(\4 \7, \5 \8, \6 \9),\n'\
	123	' TP_ARGS(\7, \8, \9),\n'\
	124	' TP_STRUCT__entry(__field(\4, \7) __field(\5, \8) __field(\6, \9)),\n'\
	125	' TP_fast_assign(tp_assign(\7, \7) tp_assign(\8, \8) tp_assign(\9, \9)),\n'\
	126	' TP_printk()\n'\
	127	')/g'\
	128	${TMPFILE} >> ${HEADER}
	129
	130
	131	# types: 4 5 6 7
	132	# args 8 9 10 11
	133
	134	NRARGS=4
	135	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	136	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	137	'types: (\([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
	138	'args: (\([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
	139	'TRACE_EVENT(sys_\1,\n'\
	140	' TP_PROTO(\4 \8, \5 \9, \6 \10, \7 \11),\n'\
	141	' TP_ARGS(\8, \9, \10, \11),\n'\
142	' TP_STRUCT__entry(__field(\4, \8) __field(\5, \9) __field(\6, \10) __field(\7, \11)),\n'\
143	' TP_fast_assign(tp_assign(\8, \8) tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11)),\n'\
144	' TP_printk()\n'\
145	')/g'\
146	${TMPFILE} >> ${HEADER}
147
148	# types: 4 5 6 7 8
149	# args 9 10 11 12 13
150
151	NRARGS=5
152	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
153	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
154	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\)) '\
155	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\))/'\
156	'TRACE_EVENT(sys_\1,\n'\
157	' TP_PROTO(\4 \9, \5 \10, \6 \11, \7 \12, \8 \13),\n'\
158	' TP_ARGS(\9, \10, \11, \12, \13),\n'\
159	' TP_STRUCT__entry(__field(\4, \9) __field(\5, \10) __field(\6, \11) __field(\7, \12) __field(\8, \13)),\n'\
160	' TP_fast_assign(tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, \12) tp_assign(\13, \13)),\n'\
161	' TP_printk()\n'\
162	')/g'\
163	${TMPFILE} >> ${HEADER}
164
165
166	# types: 4 5 6 7 8 9
167	# args 10 11 12 13 14 15
168
169	NRARGS=6
170	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
171	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
172	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
173	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
174	'TRACE_EVENT(sys_\1,\n'\
175	' TP_PROTO(\4 \10, \5 \11, \6 \12, \7 \13, \8 \14, \9 \15),\n'\
176	' TP_ARGS(\10, \11, \12, \13, \14, \15),\n'\
177	' TP_STRUCT__entry(__field(\4, \10) __field(\5, \11) __field(\6, \12) __field(\7, \13) __field(\8, \14) __field(\9, \15)),\n'\
178	' TP_fast_assign(tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, 12) tp_assign(\13, \13) tp_assign(\14, \14) tp_assign(\15, \15)),\n'\
179	' TP_printk()\n'\
180	')/g'\
181	${TMPFILE} >> ${HEADER}
182
9b6d7a0c MD	183	# Macro for tracing syscall table
9b6d7a0c MD	184
e15b0e20	185	rm -f ${TMPFILE}
f7bdf4db	186	for NRARGS in $(seq 0 6); do
e15b0e20 MD	187	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE}
	188	done
	189
054f2ed3	190	echo \
5fee13fd	191	"
e41e2e82	192	#endif /* _TRACE_SYSCALLS_H */
5fee13fd MD	193
	194	/* This part must be outside protection */
	195	#include \"../../../probes/define_trace.h\"
054f2ed3 MD	196
	197	#else /* CREATE_SYSCALL_TABLE */
	198	" >> ${HEADER}
	199
f7bdf4db MD	200
f7bdf4db MD	201	NRARGS=0
f7bdf4db	202
25631135	203	if [ "$CLASS" = integers ]; then
f7bdf4db	204	#noargs
25631135	205	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
f7bdf4db MD	206	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]\) .$/'\
	207	'TRACE_SYSCALL_TABLE(syscalls_noargs, sys_\1, \2, \3)/g'\
	208	${TMPFILE} >> ${HEADER}
25631135	209	fi
f7bdf4db MD	210
	211	#others.
	212	grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
054f2ed3	213	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]\) .$/'\
f7bdf4db	214	'TRACE_SYSCALL_TABLE(sys_\1, sys_\1, \2, \3)/g'\
054f2ed3 MD	215	${TMPFILE} >> ${HEADER}
	216
	217	echo -n \
	218	"
	219	#endif /* CREATE_SYSCALL_TABLE */
5fee13fd MD	220	" >> ${HEADER}
	221
	222	rm -f ${INPUTFILE}.tmp
	223	rm -f ${TMPFILE}
	224	rm -f ${SRCFILE}