[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 3.0.4 x86-64-syscalls-3.0.4

INPUTDIR=$1
INPUTFILE=$2
INPUT=${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

#select only syscalls we currently support
#move non-pointers with and without arguments to a integer-only file.
CLASS=integers
grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
mv ${TMPFILE} ${SRCFILE}

#TODO
# move all system calls using pointers to a separate file.
#CLASS=pointers
#grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
#mv ${TMPFILE} ${SRCFILE}

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}

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}


# 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
grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}

#noargs
sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\
'TRACE_SYSCALL_TABLE(syscalls_noargs, sys_\1, \2, \3)/g'\
	${TMPFILE} >> ${HEADER}

#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:
	5	# lttng-syscalls-generate-headers.sh 3.0.4 x86-64-syscalls-3.0.4
	6
	7	INPUTDIR=$1
	8	INPUTFILE=$2
	9	INPUT=${INPUTDIR}/${INPUTFILE}
	10	SRCFILE=gen.tmp.0
	11	TMPFILE=gen.tmp.1
	12
	13	cp ${INPUT} ${SRCFILE}
	14
	15	#Cleanup
	16	sed 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE}
	17	mv ${TMPFILE} ${SRCFILE}
	18
	19	sed 's/^syscall sys_\([^ ]*\)/syscall \1/g' ${SRCFILE} > ${TMPFILE}
	20	mv ${TMPFILE} ${SRCFILE}
	21
	22	#Filter
	23
	24	#select only syscalls we currently support
f7bdf4db	25	#move non-pointers with and without arguments to a integer-only file.
5fee13fd MD	26	CLASS=integers
	27	grep -v "\\*\\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
	28	mv ${TMPFILE} ${SRCFILE}
	29
	30	#TODO
	31	# move all system calls using pointers to a separate file.
	32	#CLASS=pointers
	33	#grep "\\*\\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
	34	#mv ${TMPFILE} ${SRCFILE}
	35
5fee13fd MD	36	HEADER=headers/${INPUTFILE}-${CLASS}.h
	37
	38	echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
	39
	40	echo \
054f2ed3 MD	41	"#ifndef CREATE_SYSCALL_TABLE
	42
	43	#undef TRACE_SYSTEM
e41e2e82	44	#define TRACE_SYSTEM syscalls
5fee13fd	45
e41e2e82 MD	46	#if !defined(_TRACE_SYSCALLS_H) \|\| defined(TRACE_HEADER_MULTI_READ)
e41e2e82 MD	47	#define _TRACE_SYSCALLS_H
5fee13fd MD	48
	49	#include <linux/tracepoint.h>
	50	#include <linux/syscalls.h>
	51	" >> ${HEADER}
	52
f7bdf4db MD	53	NRARGS=0
	54
	55	echo \
	56	'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
	57	' TP_STRUCT__entry(),\n'\
	58	' TP_fast_assign(),\n'\
	59	' TP_printk()\n'\
	60	')'\
	61	>> ${HEADER}
	62
	63	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	64	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	65	'types: (\([^)]*\)) '\
	66	'args: (\([^)]*\))/'\
	67	'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_\1)'\
	68	'/g'\
	69	${TMPFILE} >> ${HEADER}
	70
5fee13fd MD	71
	72	# types: 4
	73	# args 5
	74
	75	NRARGS=1
	76	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	77	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	78	'types: (\([^)]*\)) '\
	79	'args: (\([^)]*\))/'\
	80	'TRACE_EVENT(sys_\1,\n'\
	81	' TP_PROTO(\4 \5),\n'\
	82	' TP_ARGS(\5),\n'\
	83	' TP_STRUCT__entry(__field(\4, \5)),\n'\
	84	' TP_fast_assign(tp_assign(\5, \5)),\n'\
	85	' TP_printk()\n'\
	86	')/g'\
	87	${TMPFILE} >> ${HEADER}
	88
	89	# types: 4 5
	90	# args 6 7
	91
	92	NRARGS=2
	93	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	94	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	95	'types: (\([^,]\), \([^)]\)) '\
	96	'args: (\([^,]\), \([^)]\))/'\
	97	'TRACE_EVENT(sys_\1,\n'\
	98	' TP_PROTO(\4 \6, \5 \7),\n'\
	99	' TP_ARGS(\6, \7),\n'\
	100	' TP_STRUCT__entry(__field(\4, \6) __field(\5, \7)),\n'\
	101	' TP_fast_assign(tp_assign(\6, \6) tp_assign(\7, \7)),\n'\
	102	' TP_printk()\n'\
	103	')/g'\
	104	${TMPFILE} >> ${HEADER}
	105
	106	# types: 4 5 6
	107	# args 7 8 9
	108
	109	NRARGS=3
	110	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	111	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	112	'types: (\([^,]\), \([^,]\), \([^)]*\)) '\
	113	'args: (\([^,]\), \([^,]\), \([^)]*\))/'\
	114	'TRACE_EVENT(sys_\1,\n'\
	115	' TP_PROTO(\4 \7, \5 \8, \6 \9),\n'\
	116	' TP_ARGS(\7, \8, \9),\n'\
	117	' TP_STRUCT__entry(__field(\4, \7) __field(\5, \8) __field(\6, \9)),\n'\
	118	' TP_fast_assign(tp_assign(\7, \7) tp_assign(\8, \8) tp_assign(\9, \9)),\n'\
	119	' TP_printk()\n'\
	120	')/g'\
	121	${TMPFILE} >> ${HEADER}
	122
	123
	124	# types: 4 5 6 7
	125	# args 8 9 10 11
	126
	127	NRARGS=4
	128	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	129	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
	130	'types: (\([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
	131	'args: (\([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
	132	'TRACE_EVENT(sys_\1,\n'\
	133	' TP_PROTO(\4 \8, \5 \9, \6 \10, \7 \11),\n'\
	134	' TP_ARGS(\8, \9, \10, \11),\n'\
135	' TP_STRUCT__entry(__field(\4, \8) __field(\5, \9) __field(\6, \10) __field(\7, \11)),\n'\
136	' TP_fast_assign(tp_assign(\8, \8) tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11)),\n'\
137	' TP_printk()\n'\
138	')/g'\
139	${TMPFILE} >> ${HEADER}
140
141	# types: 4 5 6 7 8
142	# args 9 10 11 12 13
143
144	NRARGS=5
145	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
146	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
147	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\)) '\
148	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\))/'\
149	'TRACE_EVENT(sys_\1,\n'\
150	' TP_PROTO(\4 \9, \5 \10, \6 \11, \7 \12, \8 \13),\n'\
151	' TP_ARGS(\9, \10, \11, \12, \13),\n'\
152	' TP_STRUCT__entry(__field(\4, \9) __field(\5, \10) __field(\6, \11) __field(\7, \12) __field(\8, \13)),\n'\
153	' TP_fast_assign(tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, \12) tp_assign(\13, \13)),\n'\
154	' TP_printk()\n'\
155	')/g'\
156	${TMPFILE} >> ${HEADER}
157
158
159	# types: 4 5 6 7 8 9
160	# args 10 11 12 13 14 15
161
162	NRARGS=6
163	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
164	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
165	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
166	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
167	'TRACE_EVENT(sys_\1,\n'\
168	' TP_PROTO(\4 \10, \5 \11, \6 \12, \7 \13, \8 \14, \9 \15),\n'\
169	' TP_ARGS(\10, \11, \12, \13, \14, \15),\n'\
170	' TP_STRUCT__entry(__field(\4, \10) __field(\5, \11) __field(\6, \12) __field(\7, \13) __field(\8, \14) __field(\9, \15)),\n'\
171	' 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'\
172	' TP_printk()\n'\
173	')/g'\
174	${TMPFILE} >> ${HEADER}
175
9b6d7a0c MD	176	# Macro for tracing syscall table
9b6d7a0c MD	177
e15b0e20	178	rm -f ${TMPFILE}
f7bdf4db	179	for NRARGS in $(seq 0 6); do
e15b0e20 MD	180	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE}
	181	done
	182
054f2ed3	183	echo \
5fee13fd	184	"
e41e2e82	185	#endif /* _TRACE_SYSCALLS_H */
5fee13fd MD	186
	187	/* This part must be outside protection */
	188	#include \"../../../probes/define_trace.h\"
054f2ed3 MD	189
	190	#else /* CREATE_SYSCALL_TABLE */
	191	" >> ${HEADER}
	192
f7bdf4db MD	193
	194	NRARGS=0
	195	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	196
	197	#noargs
	198	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]\) .$/'\
	199	'TRACE_SYSCALL_TABLE(syscalls_noargs, sys_\1, \2, \3)/g'\
	200	${TMPFILE} >> ${HEADER}
	201
	202	#others.
	203	grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
054f2ed3	204	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]\) .$/'\
f7bdf4db	205	'TRACE_SYSCALL_TABLE(sys_\1, sys_\1, \2, \3)/g'\
054f2ed3 MD	206	${TMPFILE} >> ${HEADER}
	207
	208	echo -n \
	209	"
	210	#endif /* CREATE_SYSCALL_TABLE */
5fee13fd MD	211	" >> ${HEADER}
	212
	213	rm -f ${INPUTFILE}.tmp
	214	rm -f ${TMPFILE}
	215	rm -f ${SRCFILE}