[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 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}

#TODO
#move those without arguments to a separate file.
#CLASS=noargs
#grep "^syscall [^ ]* nr [^ ]* nbargs 0 " ${SRCFILE} > ${TMPFILE}
#mv ${TMPFILE} ${SRCFILE}

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

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

echo \
"#undef TRACE_SYSTEM
#define TRACE_SYSTEM syscall

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

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

#TODO 0

# 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}

echo -n \
"
#endif /*  _TRACE_SYSCALL_H */

/* This part must be outside protection */
#include \"../../../probes/define_trace.h\"
" >> ${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
	25	#move non-pointers with arguments to a integer-only file.
	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
	36	#TODO
	37	#move those without arguments to a separate file.
	38	#CLASS=noargs
	39	#grep "^syscall [^ ]* nr [^ ]* nbargs 0 " ${SRCFILE} > ${TMPFILE}
	40	#mv ${TMPFILE} ${SRCFILE}
	41
	42	HEADER=headers/${INPUTFILE}-${CLASS}.h
	43
	44	echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
	45
	46	echo \
	47	"#undef TRACE_SYSTEM
	48	#define TRACE_SYSTEM syscall
	49
	50	#if !defined(_TRACE_SYSCALL_H) \|\| defined(TRACE_HEADER_MULTI_READ)
	51	#define _TRACE_SYSCALL_H
	52
	53	#include <linux/tracepoint.h>
	54	#include <linux/syscalls.h>
	55	" >> ${HEADER}
	56
	57	#TODO 0
	58
	59	# types: 4
	60	# args 5
	61
	62	NRARGS=1
	63	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
	64	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
65	'types: (\([^)]*\)) '\
66	'args: (\([^)]*\))/'\
67	'TRACE_EVENT(sys_\1,\n'\
68	' TP_PROTO(\4 \5),\n'\
69	' TP_ARGS(\5),\n'\
70	' TP_STRUCT__entry(__field(\4, \5)),\n'\
71	' TP_fast_assign(tp_assign(\5, \5)),\n'\
72	' TP_printk()\n'\
73	')/g'\
74	${TMPFILE} >> ${HEADER}
75
76	# types: 4 5
77	# args 6 7
78
79	NRARGS=2
80	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
81	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
82	'types: (\([^,]\), \([^)]\)) '\
83	'args: (\([^,]\), \([^)]\))/'\
84	'TRACE_EVENT(sys_\1,\n'\
85	' TP_PROTO(\4 \6, \5 \7),\n'\
86	' TP_ARGS(\6, \7),\n'\
87	' TP_STRUCT__entry(__field(\4, \6) __field(\5, \7)),\n'\
88	' TP_fast_assign(tp_assign(\6, \6) tp_assign(\7, \7)),\n'\
89	' TP_printk()\n'\
90	')/g'\
91	${TMPFILE} >> ${HEADER}
92
93	# types: 4 5 6
94	# args 7 8 9
95
96	NRARGS=3
97	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
98	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
99	'types: (\([^,]\), \([^,]\), \([^)]*\)) '\
100	'args: (\([^,]\), \([^,]\), \([^)]*\))/'\
101	'TRACE_EVENT(sys_\1,\n'\
102	' TP_PROTO(\4 \7, \5 \8, \6 \9),\n'\
103	' TP_ARGS(\7, \8, \9),\n'\
104	' TP_STRUCT__entry(__field(\4, \7) __field(\5, \8) __field(\6, \9)),\n'\
105	' TP_fast_assign(tp_assign(\7, \7) tp_assign(\8, \8) tp_assign(\9, \9)),\n'\
106	' TP_printk()\n'\
107	')/g'\
108	${TMPFILE} >> ${HEADER}
109
110
111	# types: 4 5 6 7
112	# args 8 9 10 11
113
114	NRARGS=4
115	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
116	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
117	'types: (\([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
118	'args: (\([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
119	'TRACE_EVENT(sys_\1,\n'\
120	' TP_PROTO(\4 \8, \5 \9, \6 \10, \7 \11),\n'\
121	' TP_ARGS(\8, \9, \10, \11),\n'\
122	' TP_STRUCT__entry(__field(\4, \8) __field(\5, \9) __field(\6, \10) __field(\7, \11)),\n'\
123	' TP_fast_assign(tp_assign(\8, \8) tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11)),\n'\
124	' TP_printk()\n'\
125	')/g'\
126	${TMPFILE} >> ${HEADER}
127
128	# types: 4 5 6 7 8
129	# args 9 10 11 12 13
130
131	NRARGS=5
132	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
133	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
134	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\)) '\
135	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]*\))/'\
136	'TRACE_EVENT(sys_\1,\n'\
137	' TP_PROTO(\4 \9, \5 \10, \6 \11, \7 \12, \8 \13),\n'\
138	' TP_ARGS(\9, \10, \11, \12, \13),\n'\
139	' TP_STRUCT__entry(__field(\4, \9) __field(\5, \10) __field(\6, \11) __field(\7, \12) __field(\8, \13)),\n'\
140	' TP_fast_assign(tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, \12) tp_assign(\13, \13)),\n'\
141	' TP_printk()\n'\
142	')/g'\
143	${TMPFILE} >> ${HEADER}
144
145
146	# types: 4 5 6 7 8 9
147	# args 10 11 12 13 14 15
148
149	NRARGS=6
150	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
151	sed 's/^syscall \([^ ]\) nr \([^ ]\) nbargs \([^ ]*\) '\
152	'types: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\)) '\
153	'args: (\([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^,]\), \([^)]\))/'\
154	'TRACE_EVENT(sys_\1,\n'\
155	' TP_PROTO(\4 \10, \5 \11, \6 \12, \7 \13, \8 \14, \9 \15),\n'\
156	' TP_ARGS(\10, \11, \12, \13, \14, \15),\n'\
157	' TP_STRUCT__entry(__field(\4, \10) __field(\5, \11) __field(\6, \12) __field(\7, \13) __field(\8, \14) __field(\9, \15)),\n'\
158	' 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'\
159	' TP_printk()\n'\
160	')/g'\
161	${TMPFILE} >> ${HEADER}
162
163	echo -n \
164	"
165	#endif /* _TRACE_SYSCALL_H */
166
167	/* This part must be outside protection */
168	#include \"../../../probes/define_trace.h\"
169	" >> ${HEADER}
170
171	rm -f ${INPUTFILE}.tmp
172	rm -f ${TMPFILE}
173	rm -f ${SRCFILE}