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 | 5 | # |
daaf627a MD |
6 | # lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4 64 |
7 | # lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4 64 | |
5fee13fd | 8 | |
25631135 MD |
9 | CLASS=$1 |
10 | INPUTDIR=$2 | |
11 | INPUTFILE=$3 | |
daaf627a | 12 | BITNESS=$4 |
5fee13fd MD |
13 | INPUT=${INPUTDIR}/${INPUTFILE} |
14 | SRCFILE=gen.tmp.0 | |
15 | TMPFILE=gen.tmp.1 | |
177b3692 | 16 | HEADER=headers/${INPUTFILE}_${CLASS}.h |
5fee13fd MD |
17 | |
18 | cp ${INPUT} ${SRCFILE} | |
19 | ||
20 | #Cleanup | |
177b3692 | 21 | perl -p -e 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE} |
5fee13fd MD |
22 | mv ${TMPFILE} ${SRCFILE} |
23 | ||
177b3692 | 24 | perl -p -e 's/^syscall sys_([^ ]*)/syscall $1/g' ${SRCFILE} > ${TMPFILE} |
5fee13fd MD |
25 | mv ${TMPFILE} ${SRCFILE} |
26 | ||
27 | #Filter | |
28 | ||
25631135 MD |
29 | if [ "$CLASS" = integers ]; then |
30 | #select integers and no-args. | |
177b3692 | 31 | CLASSCAP=INTEGERS |
25631135 MD |
32 | grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE} |
33 | mv ${TMPFILE} ${SRCFILE} | |
34 | fi | |
35 | ||
5fee13fd | 36 | |
25631135 MD |
37 | if [ "$CLASS" = pointers ]; then |
38 | #select system calls using pointers. | |
177b3692 | 39 | CLASSCAP=POINTERS |
25631135 MD |
40 | grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE} |
41 | mv ${TMPFILE} ${SRCFILE} | |
42 | fi | |
5fee13fd | 43 | |
5fee13fd MD |
44 | echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER} |
45 | ||
46 | echo \ | |
054f2ed3 MD |
47 | "#ifndef CREATE_SYSCALL_TABLE |
48 | ||
177b3692 MD |
49 | #if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ) |
50 | #define _TRACE_SYSCALLS_${CLASSCAP}_H | |
5fee13fd MD |
51 | |
52 | #include <linux/tracepoint.h> | |
53 | #include <linux/syscalls.h> | |
1dc9d1cf | 54 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
daaf627a | 55 | #include \"syscalls_${CLASS}_override.h\" |
5fee13fd MD |
56 | " >> ${HEADER} |
57 | ||
25631135 MD |
58 | if [ "$CLASS" = integers ]; then |
59 | ||
f7bdf4db MD |
60 | NRARGS=0 |
61 | ||
db55ef80 | 62 | printf \ |
a93244f8 | 63 | 'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
f7bdf4db MD |
64 | ' TP_STRUCT__entry(),\n'\ |
65 | ' TP_fast_assign(),\n'\ | |
66 | ' TP_printk()\n'\ | |
67 | ')'\ | |
68 | >> ${HEADER} | |
69 | ||
70 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
71 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
72 | 'types: \(([^)]*)\) '\ | |
73 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 74 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 75 | 'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\ |
1dc9d1cf | 76 | '#endif/g'\ |
f7bdf4db MD |
77 | ${TMPFILE} >> ${HEADER} |
78 | ||
25631135 | 79 | fi |
5fee13fd | 80 | |
177b3692 | 81 | |
5fee13fd MD |
82 | # types: 4 |
83 | # args 5 | |
84 | ||
85 | NRARGS=1 | |
86 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
87 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
88 | 'types: \(([^)]*)\) '\ | |
89 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 90 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 91 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
92 | ' TP_PROTO($4 $5),\n'\ |
93 | ' TP_ARGS($5),\n'\ | |
94 | ' TP_STRUCT__entry(__field($4, $5)),\n'\ | |
d0b4f04b | 95 | ' TP_fast_assign(tp_assign($4, $5, $5)),\n'\ |
5fee13fd | 96 | ' TP_printk()\n'\ |
1dc9d1cf MD |
97 | ')\n'\ |
98 | '#endif/g'\ | |
5fee13fd MD |
99 | ${TMPFILE} >> ${HEADER} |
100 | ||
101 | # types: 4 5 | |
102 | # args 6 7 | |
103 | ||
104 | NRARGS=2 | |
105 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
106 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
107 | 'types: \(([^,]*), ([^)]*)\) '\ | |
108 | 'args: \(([^,]*), ([^)]*)\)/'\ | |
daaf627a | 109 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 110 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
111 | ' TP_PROTO($4 $6, $5 $7),\n'\ |
112 | ' TP_ARGS($6, $7),\n'\ | |
113 | ' TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\ | |
d0b4f04b | 114 | ' TP_fast_assign(tp_assign($4, $6, $6) tp_assign($5, $7, $7)),\n'\ |
5fee13fd | 115 | ' TP_printk()\n'\ |
1dc9d1cf MD |
116 | ')\n'\ |
117 | '#endif/g'\ | |
5fee13fd MD |
118 | ${TMPFILE} >> ${HEADER} |
119 | ||
120 | # types: 4 5 6 | |
121 | # args 7 8 9 | |
122 | ||
123 | NRARGS=3 | |
124 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
125 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
126 | 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\ | |
127 | 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 128 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 129 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
130 | ' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\ |
131 | ' TP_ARGS($7, $8, $9),\n'\ | |
132 | ' TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\ | |
d0b4f04b | 133 | ' TP_fast_assign(tp_assign($4, $7, $7) tp_assign($5, $8, $8) tp_assign($6, $9, $9)),\n'\ |
5fee13fd | 134 | ' TP_printk()\n'\ |
1dc9d1cf MD |
135 | ')\n'\ |
136 | '#endif/g'\ | |
5fee13fd MD |
137 | ${TMPFILE} >> ${HEADER} |
138 | ||
139 | ||
140 | # types: 4 5 6 7 | |
141 | # args 8 9 10 11 | |
142 | ||
143 | NRARGS=4 | |
144 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
145 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
146 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
147 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 148 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 149 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
150 | ' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\ |
151 | ' TP_ARGS($8, $9, $10, $11),\n'\ | |
152 | ' TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\ | |
d0b4f04b | 153 | ' TP_fast_assign(tp_assign($4, $8, $8) tp_assign($5, $9, $9) tp_assign($6, $10, $10) tp_assign($7, $11, $11)),\n'\ |
5fee13fd | 154 | ' TP_printk()\n'\ |
1dc9d1cf MD |
155 | ')\n'\ |
156 | '#endif/g'\ | |
5fee13fd MD |
157 | ${TMPFILE} >> ${HEADER} |
158 | ||
159 | # types: 4 5 6 7 8 | |
160 | # args 9 10 11 12 13 | |
161 | ||
162 | NRARGS=5 | |
163 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
164 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
165 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
166 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 167 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 168 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
169 | ' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\ |
170 | ' TP_ARGS($9, $10, $11, $12, $13),\n'\ | |
171 | ' TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\ | |
d0b4f04b | 172 | ' TP_fast_assign(tp_assign($4, $9, $9) tp_assign($5, $10, $10) tp_assign($6, $11, $11) tp_assign($7, $12, $12) tp_assign($8, $13, $13)),\n'\ |
5fee13fd | 173 | ' TP_printk()\n'\ |
1dc9d1cf MD |
174 | ')\n'\ |
175 | '#endif/g'\ | |
5fee13fd MD |
176 | ${TMPFILE} >> ${HEADER} |
177 | ||
178 | ||
179 | # types: 4 5 6 7 8 9 | |
180 | # args 10 11 12 13 14 15 | |
181 | ||
182 | NRARGS=6 | |
183 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
184 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
185 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\ | |
186 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\ | |
daaf627a | 187 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 188 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
189 | ' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\ |
190 | ' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\ | |
191 | ' TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\ | |
d0b4f04b | 192 | ' TP_fast_assign(tp_assign($4, $10, $10) tp_assign($5, $11, $11) tp_assign($6, $12, $12) tp_assign($7, $13, $13) tp_assign($8, $14, $14) tp_assign($9, $15, $15)),\n'\ |
5fee13fd | 193 | ' TP_printk()\n'\ |
1dc9d1cf MD |
194 | ')\n'\ |
195 | '#endif/g'\ | |
5fee13fd MD |
196 | ${TMPFILE} >> ${HEADER} |
197 | ||
9b6d7a0c MD |
198 | # Macro for tracing syscall table |
199 | ||
e15b0e20 | 200 | rm -f ${TMPFILE} |
f7bdf4db | 201 | for NRARGS in $(seq 0 6); do |
e15b0e20 MD |
202 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE} |
203 | done | |
204 | ||
054f2ed3 | 205 | echo \ |
5fee13fd | 206 | " |
177b3692 | 207 | #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */ |
5fee13fd MD |
208 | |
209 | /* This part must be outside protection */ | |
210 | #include \"../../../probes/define_trace.h\" | |
054f2ed3 MD |
211 | |
212 | #else /* CREATE_SYSCALL_TABLE */ | |
054f2ed3 | 213 | |
cac8f1aa | 214 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
daaf627a | 215 | #include \"syscalls_${CLASS}_override.h\" |
cac8f1aa | 216 | " >> ${HEADER} |
f7bdf4db MD |
217 | |
218 | NRARGS=0 | |
f7bdf4db | 219 | |
25631135 | 220 | if [ "$CLASS" = integers ]; then |
f7bdf4db | 221 | #noargs |
25631135 | 222 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
177b3692 | 223 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 224 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
225 | 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\ |
226 | '#endif/g'\ | |
f7bdf4db | 227 | ${TMPFILE} >> ${HEADER} |
25631135 | 228 | fi |
f7bdf4db MD |
229 | |
230 | #others. | |
231 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 | 232 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 233 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
234 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\ |
235 | '#endif/g'\ | |
054f2ed3 MD |
236 | ${TMPFILE} >> ${HEADER} |
237 | ||
238 | echo -n \ | |
239 | " | |
240 | #endif /* CREATE_SYSCALL_TABLE */ | |
5fee13fd MD |
241 | " >> ${HEADER} |
242 | ||
e374aaf1 MD |
243 | #fields names: ...char * type with *name* or *file* or *path* or *root* |
244 | # or *put_old* or *type* | |
2a153251 MD |
245 | cp -f ${HEADER} ${TMPFILE} |
246 | rm -f ${HEADER} | |
67308615 | 247 | perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string_from_user($2$3$4, $2$3$4)/g'\ |
2a153251 | 248 | ${TMPFILE} >> ${HEADER} |
f4c4a6ae MD |
249 | cp -f ${HEADER} ${TMPFILE} |
250 | rm -f ${HEADER} | |
e374aaf1 | 251 | perl -p -e 's/tp_assign\(([^,)]*char \*), ([^,]*)(name|file|path|root|put_old|type)([^,]*), ([^\)]*)\)/tp_copy_string_from_user($2$3$4, $5)/g'\ |
f4c4a6ae | 252 | ${TMPFILE} >> ${HEADER} |
d0b4f04b MD |
253 | |
254 | #prettify addresses heuristics. | |
255 | #field names with addr or ptr | |
f4c4a6ae MD |
256 | cp -f ${HEADER} ${TMPFILE} |
257 | rm -f ${HEADER} | |
d0b4f04b | 258 | perl -p -e 's/__field\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\ |
f4c4a6ae MD |
259 | ${TMPFILE} >> ${HEADER} |
260 | ||
d0b4f04b | 261 | #field types ending with '*' |
2a153251 MD |
262 | cp -f ${HEADER} ${TMPFILE} |
263 | rm -f ${HEADER} | |
2a153251 MD |
264 | perl -p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\ |
265 | ${TMPFILE} >> ${HEADER} | |
266 | ||
d0b4f04b MD |
267 | #strip the extra type information from tp_assign. |
268 | cp -f ${HEADER} ${TMPFILE} | |
269 | rm -f ${HEADER} | |
270 | perl -p -e 's/tp_assign\(([^,)]*), ([^,]*), ([^\)]*)\)/tp_assign($2, $3)/g'\ | |
271 | ${TMPFILE} >> ${HEADER} | |
f4c4a6ae | 272 | |
5fee13fd MD |
273 | rm -f ${INPUTFILE}.tmp |
274 | rm -f ${TMPFILE} | |
275 | rm -f ${SRCFILE} |