Commit | Line | Data |
---|---|---|
5fee13fd MD |
1 | #!/bin/sh |
2 | ||
3 | # Generate system call probe description macros from syscall metadata dump file. | |
eafcf0ad YB |
4 | # The resulting header will be written in the headers subdirectory, in a file name |
5 | # based on the name of the input file. | |
6 | # | |
5fee13fd | 7 | # example usage: |
25631135 | 8 | # |
eafcf0ad | 9 | # lttng-syscalls-generate-headers.sh <type> <input_dir> <input_filename_in_dir> <bitness> |
daaf627a MD |
10 | # lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4 64 |
11 | # lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4 64 | |
5fee13fd | 12 | |
25631135 MD |
13 | CLASS=$1 |
14 | INPUTDIR=$2 | |
15 | INPUTFILE=$3 | |
daaf627a | 16 | BITNESS=$4 |
5fee13fd MD |
17 | INPUT=${INPUTDIR}/${INPUTFILE} |
18 | SRCFILE=gen.tmp.0 | |
19 | TMPFILE=gen.tmp.1 | |
177b3692 | 20 | HEADER=headers/${INPUTFILE}_${CLASS}.h |
5fee13fd | 21 | |
94f9e233 MD |
22 | if [ x"$INPUTDIR" = x"" ]; then |
23 | echo "Error: Please specify input directory as second argument" | |
24 | exit 1 | |
25 | fi | |
26 | ||
27 | if [ x"$INPUTFILE" = x"" ]; then | |
28 | echo "Error: Please specify input file as third argument" | |
29 | exit 1 | |
30 | fi | |
31 | ||
32 | if [ x"$BITNESS" != x"32" ] && [ x"$BITNESS" != x"64" ]; then | |
33 | echo "Error: Please specify bitness as fourth argument (\"32\" or \"64\")" | |
34 | exit 1 | |
35 | fi | |
36 | ||
5fee13fd MD |
37 | cp ${INPUT} ${SRCFILE} |
38 | ||
39 | #Cleanup | |
177b3692 | 40 | perl -p -e 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE} |
5fee13fd MD |
41 | mv ${TMPFILE} ${SRCFILE} |
42 | ||
177b3692 | 43 | perl -p -e 's/^syscall sys_([^ ]*)/syscall $1/g' ${SRCFILE} > ${TMPFILE} |
5fee13fd MD |
44 | mv ${TMPFILE} ${SRCFILE} |
45 | ||
46 | #Filter | |
47 | ||
25631135 MD |
48 | if [ "$CLASS" = integers ]; then |
49 | #select integers and no-args. | |
177b3692 | 50 | CLASSCAP=INTEGERS |
25631135 MD |
51 | grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE} |
52 | mv ${TMPFILE} ${SRCFILE} | |
53 | fi | |
54 | ||
5fee13fd | 55 | |
25631135 MD |
56 | if [ "$CLASS" = pointers ]; then |
57 | #select system calls using pointers. | |
177b3692 | 58 | CLASSCAP=POINTERS |
25631135 MD |
59 | grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE} |
60 | mv ${TMPFILE} ${SRCFILE} | |
61 | fi | |
5fee13fd | 62 | |
94f9e233 MD |
63 | if [ x"$CLASSCAP" = x"" ]; then |
64 | echo "Error: Please specify \"integers\" or \"pointers\" as first argument" | |
65 | rm -f ${SRCFILE} | |
66 | exit 1 | |
67 | fi | |
68 | ||
5fee13fd MD |
69 | echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER} |
70 | ||
71 | echo \ | |
054f2ed3 MD |
72 | "#ifndef CREATE_SYSCALL_TABLE |
73 | ||
177b3692 MD |
74 | #if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ) |
75 | #define _TRACE_SYSCALLS_${CLASSCAP}_H | |
5fee13fd MD |
76 | |
77 | #include <linux/tracepoint.h> | |
78 | #include <linux/syscalls.h> | |
1dc9d1cf | 79 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
daaf627a | 80 | #include \"syscalls_${CLASS}_override.h\" |
5fee13fd MD |
81 | " >> ${HEADER} |
82 | ||
25631135 MD |
83 | if [ "$CLASS" = integers ]; then |
84 | ||
f7bdf4db MD |
85 | NRARGS=0 |
86 | ||
fc4f7161 MD |
87 | printf \ |
88 | '#ifdef SC_ENTER\n'\ | |
89 | >> ${HEADER} | |
90 | ||
db55ef80 | 91 | printf \ |
a93244f8 | 92 | 'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
f7bdf4db MD |
93 | ' TP_STRUCT__entry(),\n'\ |
94 | ' TP_fast_assign(),\n'\ | |
95 | ' TP_printk()\n'\ | |
94f9e233 | 96 | ')\n'\ |
f7bdf4db MD |
97 | >> ${HEADER} |
98 | ||
99 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
100 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
101 | 'types: \(([^)]*)\) '\ | |
102 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 103 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 104 | 'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\ |
1dc9d1cf | 105 | '#endif/g'\ |
f7bdf4db MD |
106 | ${TMPFILE} >> ${HEADER} |
107 | ||
fc4f7161 MD |
108 | printf \ |
109 | '#else /* #ifdef SC_ENTER */\n'\ | |
110 | >> ${HEADER} | |
111 | ||
112 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
113 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ | |
114 | 'types: \(([^)]*)\) '\ | |
115 | 'args: \(([^)]*)\)/'\ | |
116 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ | |
117 | 'SC_TRACE_EVENT(sys_$1,\n'\ | |
118 | ' TP_PROTO(sc_exit(long ret)),\n'\ | |
119 | ' TP_ARGS(sc_exit(ret)),\n'\ | |
120 | ' TP_STRUCT__entry(sc_exit(__field(long, ret))),\n'\ | |
121 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret))),\n'\ | |
122 | ' TP_printk()\n'\ | |
123 | ')\n'\ | |
124 | '#endif/g'\ | |
125 | ${TMPFILE} >> ${HEADER} | |
126 | ||
127 | printf \ | |
128 | '#endif /* else #ifdef SC_ENTER */\n'\ | |
129 | >> ${HEADER} | |
130 | ||
25631135 | 131 | fi |
5fee13fd | 132 | |
177b3692 | 133 | |
5fee13fd MD |
134 | # types: 4 |
135 | # args 5 | |
136 | ||
137 | NRARGS=1 | |
138 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
139 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
140 | 'types: \(([^)]*)\) '\ | |
141 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 142 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 143 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
144 | ' TP_PROTO(sc_exit(long ret,) $4 $5),\n'\ |
145 | ' TP_ARGS(sc_exit(ret,) $5),\n'\ | |
146 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $5)),\n'\ | |
147 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) tp_assign($4, $5, $5)),\n'\ | |
5fee13fd | 148 | ' TP_printk()\n'\ |
1dc9d1cf MD |
149 | ')\n'\ |
150 | '#endif/g'\ | |
5fee13fd MD |
151 | ${TMPFILE} >> ${HEADER} |
152 | ||
153 | # types: 4 5 | |
154 | # args 6 7 | |
155 | ||
156 | NRARGS=2 | |
157 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
158 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
159 | 'types: \(([^,]*), ([^)]*)\) '\ | |
160 | 'args: \(([^,]*), ([^)]*)\)/'\ | |
daaf627a | 161 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 162 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
163 | ' TP_PROTO(sc_exit(long ret,) $4 $6, $5 $7),\n'\ |
164 | ' TP_ARGS(sc_exit(ret,) $6, $7),\n'\ | |
165 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $6) __field($5, $7)),\n'\ | |
166 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) tp_assign($4, $6, $6) tp_assign($5, $7, $7)),\n'\ | |
5fee13fd | 167 | ' TP_printk()\n'\ |
1dc9d1cf MD |
168 | ')\n'\ |
169 | '#endif/g'\ | |
5fee13fd MD |
170 | ${TMPFILE} >> ${HEADER} |
171 | ||
172 | # types: 4 5 6 | |
173 | # args 7 8 9 | |
174 | ||
175 | NRARGS=3 | |
176 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
177 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
178 | 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\ | |
179 | 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 180 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 181 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
182 | ' TP_PROTO(sc_exit(long ret,) $4 $7, $5 $8, $6 $9),\n'\ |
183 | ' TP_ARGS(sc_exit(ret,) $7, $8, $9),\n'\ | |
184 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $7) __field($5, $8) __field($6, $9)),\n'\ | |
185 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) tp_assign($4, $7, $7) tp_assign($5, $8, $8) tp_assign($6, $9, $9)),\n'\ | |
5fee13fd | 186 | ' TP_printk()\n'\ |
1dc9d1cf MD |
187 | ')\n'\ |
188 | '#endif/g'\ | |
5fee13fd MD |
189 | ${TMPFILE} >> ${HEADER} |
190 | ||
191 | ||
192 | # types: 4 5 6 7 | |
193 | # args 8 9 10 11 | |
194 | ||
195 | NRARGS=4 | |
196 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
197 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
198 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
199 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 200 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 201 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
202 | ' TP_PROTO(sc_exit(long ret,) $4 $8, $5 $9, $6 $10, $7 $11),\n'\ |
203 | ' TP_ARGS(sc_exit(ret,) $8, $9, $10, $11),\n'\ | |
204 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\ | |
205 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) tp_assign($4, $8, $8) tp_assign($5, $9, $9) tp_assign($6, $10, $10) tp_assign($7, $11, $11)),\n'\ | |
5fee13fd | 206 | ' TP_printk()\n'\ |
1dc9d1cf MD |
207 | ')\n'\ |
208 | '#endif/g'\ | |
5fee13fd MD |
209 | ${TMPFILE} >> ${HEADER} |
210 | ||
211 | # types: 4 5 6 7 8 | |
212 | # args 9 10 11 12 13 | |
213 | ||
214 | NRARGS=5 | |
215 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
216 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
217 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
218 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 219 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 220 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
221 | ' TP_PROTO(sc_exit(long ret,) $4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\ |
222 | ' TP_ARGS(sc_exit(ret,) $9, $10, $11, $12, $13),\n'\ | |
223 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\ | |
224 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) 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 | 225 | ' TP_printk()\n'\ |
1dc9d1cf MD |
226 | ')\n'\ |
227 | '#endif/g'\ | |
5fee13fd MD |
228 | ${TMPFILE} >> ${HEADER} |
229 | ||
230 | ||
231 | # types: 4 5 6 7 8 9 | |
232 | # args 10 11 12 13 14 15 | |
233 | ||
234 | NRARGS=6 | |
235 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
236 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
237 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\ | |
238 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\ | |
daaf627a | 239 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 240 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
fc4f7161 MD |
241 | ' TP_PROTO(sc_exit(long ret,) $4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\ |
242 | ' TP_ARGS(sc_exit(ret,) $10, $11, $12, $13, $14, $15),\n'\ | |
243 | ' TP_STRUCT__entry(sc_exit(__field(long, ret)) __field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\ | |
244 | ' TP_fast_assign(sc_exit(tp_assign(long, ret, ret)) 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 | 245 | ' TP_printk()\n'\ |
1dc9d1cf MD |
246 | ')\n'\ |
247 | '#endif/g'\ | |
5fee13fd MD |
248 | ${TMPFILE} >> ${HEADER} |
249 | ||
9b6d7a0c MD |
250 | # Macro for tracing syscall table |
251 | ||
054f2ed3 | 252 | echo \ |
5fee13fd | 253 | " |
177b3692 | 254 | #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */ |
5fee13fd MD |
255 | |
256 | /* This part must be outside protection */ | |
257 | #include \"../../../probes/define_trace.h\" | |
054f2ed3 MD |
258 | |
259 | #else /* CREATE_SYSCALL_TABLE */ | |
054f2ed3 | 260 | |
cac8f1aa | 261 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
daaf627a | 262 | #include \"syscalls_${CLASS}_override.h\" |
cac8f1aa | 263 | " >> ${HEADER} |
f7bdf4db MD |
264 | |
265 | NRARGS=0 | |
f7bdf4db | 266 | |
25631135 | 267 | if [ "$CLASS" = integers ]; then |
f7bdf4db | 268 | #noargs |
fc4f7161 MD |
269 | |
270 | printf \ | |
271 | '#ifdef SC_ENTER\n'\ | |
272 | >> ${HEADER} | |
273 | ||
25631135 | 274 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
177b3692 | 275 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 276 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
277 | 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\ |
278 | '#endif/g'\ | |
f7bdf4db | 279 | ${TMPFILE} >> ${HEADER} |
fc4f7161 MD |
280 | |
281 | printf \ | |
282 | '#else /* #ifdef SC_ENTER */\n'\ | |
283 | >> ${HEADER} | |
284 | ||
285 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
286 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ | |
287 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ | |
288 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\ | |
289 | '#endif/g'\ | |
290 | ${TMPFILE} >> ${HEADER} | |
291 | ||
292 | printf \ | |
293 | '#endif /* else #ifdef SC_ENTER */\n'\ | |
294 | >> ${HEADER} | |
295 | ||
25631135 | 296 | fi |
f7bdf4db MD |
297 | |
298 | #others. | |
299 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 | 300 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 301 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
302 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\ |
303 | '#endif/g'\ | |
054f2ed3 MD |
304 | ${TMPFILE} >> ${HEADER} |
305 | ||
306 | echo -n \ | |
307 | " | |
308 | #endif /* CREATE_SYSCALL_TABLE */ | |
5fee13fd MD |
309 | " >> ${HEADER} |
310 | ||
e374aaf1 MD |
311 | #fields names: ...char * type with *name* or *file* or *path* or *root* |
312 | # or *put_old* or *type* | |
2a153251 MD |
313 | cp -f ${HEADER} ${TMPFILE} |
314 | rm -f ${HEADER} | |
67308615 | 315 | perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string_from_user($2$3$4, $2$3$4)/g'\ |
2a153251 | 316 | ${TMPFILE} >> ${HEADER} |
f4c4a6ae MD |
317 | cp -f ${HEADER} ${TMPFILE} |
318 | rm -f ${HEADER} | |
e374aaf1 | 319 | 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 | 320 | ${TMPFILE} >> ${HEADER} |
d0b4f04b MD |
321 | |
322 | #prettify addresses heuristics. | |
323 | #field names with addr or ptr | |
f4c4a6ae MD |
324 | cp -f ${HEADER} ${TMPFILE} |
325 | rm -f ${HEADER} | |
d0b4f04b | 326 | perl -p -e 's/__field\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\ |
f4c4a6ae MD |
327 | ${TMPFILE} >> ${HEADER} |
328 | ||
d0b4f04b | 329 | #field types ending with '*' |
2a153251 MD |
330 | cp -f ${HEADER} ${TMPFILE} |
331 | rm -f ${HEADER} | |
2a153251 MD |
332 | perl -p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\ |
333 | ${TMPFILE} >> ${HEADER} | |
334 | ||
d0b4f04b MD |
335 | #strip the extra type information from tp_assign. |
336 | cp -f ${HEADER} ${TMPFILE} | |
337 | rm -f ${HEADER} | |
338 | perl -p -e 's/tp_assign\(([^,)]*), ([^,]*), ([^\)]*)\)/tp_assign($2, $3)/g'\ | |
339 | ${TMPFILE} >> ${HEADER} | |
f4c4a6ae | 340 | |
5fee13fd MD |
341 | rm -f ${INPUTFILE}.tmp |
342 | rm -f ${TMPFILE} | |
343 | rm -f ${SRCFILE} |