3 # Generate system call probe description macros from syscall metadata dump file.
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
12 INPUT
=${INPUTDIR}/${INPUTFILE}
15 HEADER
=headers
/${INPUTFILE}_
${CLASS}.h
17 cp ${INPUT} ${SRCFILE}
20 perl
-p -e 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE}
21 mv ${TMPFILE} ${SRCFILE}
23 perl
-p -e 's/^syscall sys_([^ ]*)/syscall $1/g' ${SRCFILE} > ${TMPFILE}
24 mv ${TMPFILE} ${SRCFILE}
28 if [ "$CLASS" = integers
]; then
29 #select integers and no-args.
31 grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
32 mv ${TMPFILE} ${SRCFILE}
36 if [ "$CLASS" = pointers
]; then
37 #select system calls using pointers.
39 grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
40 mv ${TMPFILE} ${SRCFILE}
43 echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
46 "#ifndef CREATE_SYSCALL_TABLE
49 #define TRACE_SYSTEM syscalls_${CLASS}
51 #if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ)
52 #define _TRACE_SYSCALLS_${CLASSCAP}_H
54 #include <linux/tracepoint.h>
55 #include <linux/syscalls.h>
56 #include \"${INPUTFILE}_${CLASS}_override.h\"
59 if [ "$CLASS" = integers
]; then
64 'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
65 ' TP_STRUCT__entry(),\n'\
66 ' TP_fast_assign(),\n'\
71 grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
72 perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
73 'types: \(([^)]*)\) '\
75 '#ifndef OVERRIDE_sys_$1\n'\
76 'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\
78 ${TMPFILE} >> ${HEADER}
87 grep "^syscall
[^
]* nr
[^
]* nbargs
${NRARGS} " ${SRCFILE} > ${TMPFILE}
88 perl
-p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
89 'types: \(([^)]*)\) '\
91 '#ifndef OVERRIDE_sys_$1\n'\
92 'TRACE_EVENT(sys_$1,\n'\
93 ' TP_PROTO($4 $5),\n'\
95 ' TP_STRUCT__entry(__field($4, $5)),\n'\
96 ' TP_fast_assign(tp_assign($5, $5)),\n'\
100 ${TMPFILE} >> ${HEADER}
106 grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
107 perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
108 'types: \(([^,]*), ([^)]*)\) '\
109 'args: \(([^,]*), ([^)]*)\)/'\
110 '#ifndef OVERRIDE_sys_$1\n'\
111 'TRACE_EVENT(sys_$1,\n'\
112 ' TP_PROTO($4 $6, $5 $7),\n'\
113 ' TP_ARGS($6, $7),\n'\
114 ' TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\
115 ' TP_fast_assign(tp_assign($6, $6) tp_assign($7, $7)),\n'\
119 ${TMPFILE} >> ${HEADER}
125 grep "^syscall
[^
]* nr
[^
]* nbargs
${NRARGS} " ${SRCFILE} > ${TMPFILE}
126 perl
-p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
127 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\
128 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\
129 '#ifndef OVERRIDE_sys_$1\n'\
130 'TRACE_EVENT(sys_$1,\n'\
131 ' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\
132 ' TP_ARGS($7, $8, $9),\n'\
133 ' TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\
134 ' TP_fast_assign(tp_assign($7, $7) tp_assign($8, $8) tp_assign($9, $9)),\n'\
138 ${TMPFILE} >> ${HEADER}
145 grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
146 perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
147 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
148 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
149 '#ifndef OVERRIDE_sys_$1\n'\
150 'TRACE_EVENT(sys_$1,\n'\
151 ' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\
152 ' TP_ARGS($8, $9, $10, $11),\n'\
153 ' TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\
154 ' TP_fast_assign(tp_assign($8, $8) tp_assign($9, $9) tp_assign($10, $10) tp_assign($11, $11)),\n'\
158 ${TMPFILE} >> ${HEADER}
164 grep "^syscall
[^
]* nr
[^
]* nbargs
${NRARGS} " ${SRCFILE} > ${TMPFILE}
165 perl
-p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
166 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
167 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
168 '#ifndef OVERRIDE_sys_$1\n'\
169 'TRACE_EVENT(sys_$1,\n'\
170 ' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\
171 ' TP_ARGS($9, $10, $11, $12, $13),\n'\
172 ' TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\
173 ' TP_fast_assign(tp_assign($9, $9) tp_assign($10, $10) tp_assign($11, $11) tp_assign($12, $12) tp_assign($13, $13)),\n'\
177 ${TMPFILE} >> ${HEADER}
181 # args 10 11 12 13 14 15
184 grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
185 perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
186 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\
187 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\
188 '#ifndef OVERRIDE_sys_$1\n'\
189 'TRACE_EVENT(sys_$1,\n'\
190 ' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\
191 ' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\
192 ' TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\
193 ' 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'\
197 ${TMPFILE} >> ${HEADER}
199 # Macro for tracing syscall table
202 for NRARGS in $(seq 0 6); do
203 grep "^syscall
[^
]* nr
[^
]* nbargs
${NRARGS} " ${SRCFILE} >> ${TMPFILE}
208 #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */
210 /* This part must be outside protection */
211 #include \"../../../probes/define_trace.h\"
213 #else /* CREATE_SYSCALL_TABLE */
215 #include \"${INPUTFILE}_${CLASS}_override.h\"
220 if [ "$CLASS" = integers
]; then
222 grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
223 perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
224 '#ifndef OVERRIDE_sys_$1\n'\
225 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\
227 ${TMPFILE} >> ${HEADER}
231 grep -v "^syscall
[^
]* nr
[^
]* nbargs
${NRARGS} " ${SRCFILE} > ${TMPFILE}
232 perl
-p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
233 '#ifndef OVERRIDE_sys_$1\n'\
234 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\
236 ${TMPFILE} >> ${HEADER}
240 #endif /* CREATE_SYSCALL_TABLE */
243 #prettify addresses heuristics.
244 cp -f ${HEADER} ${TMPFILE}
247 #field names with addr or ptr
248 perl
-p -e 's/__field\(([^,)]*), ([^a,)]*addr|[^p,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\
249 ${TMPFILE} >> ${HEADER}
251 cp -f ${HEADER} ${TMPFILE}
254 #field types ending with '*'
255 perl
-p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\
256 ${TMPFILE} >> ${HEADER}
258 rm -f ${INPUTFILE}.tmp
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