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 | ||
db55ef80 | 87 | printf \ |
a93244f8 | 88 | 'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
f7bdf4db MD |
89 | ' TP_STRUCT__entry(),\n'\ |
90 | ' TP_fast_assign(),\n'\ | |
91 | ' TP_printk()\n'\ | |
94f9e233 | 92 | ')\n'\ |
f7bdf4db MD |
93 | >> ${HEADER} |
94 | ||
95 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
96 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
97 | 'types: \(([^)]*)\) '\ | |
98 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 99 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 100 | 'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\ |
1dc9d1cf | 101 | '#endif/g'\ |
f7bdf4db MD |
102 | ${TMPFILE} >> ${HEADER} |
103 | ||
25631135 | 104 | fi |
5fee13fd | 105 | |
177b3692 | 106 | |
5fee13fd MD |
107 | # types: 4 |
108 | # args 5 | |
109 | ||
110 | NRARGS=1 | |
111 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
112 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
113 | 'types: \(([^)]*)\) '\ | |
114 | 'args: \(([^)]*)\)/'\ | |
daaf627a | 115 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 116 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
117 | ' TP_PROTO($4 $5),\n'\ |
118 | ' TP_ARGS($5),\n'\ | |
119 | ' TP_STRUCT__entry(__field($4, $5)),\n'\ | |
d0b4f04b | 120 | ' TP_fast_assign(tp_assign($4, $5, $5)),\n'\ |
5fee13fd | 121 | ' TP_printk()\n'\ |
1dc9d1cf MD |
122 | ')\n'\ |
123 | '#endif/g'\ | |
5fee13fd MD |
124 | ${TMPFILE} >> ${HEADER} |
125 | ||
126 | # types: 4 5 | |
127 | # args 6 7 | |
128 | ||
129 | NRARGS=2 | |
130 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
131 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
132 | 'types: \(([^,]*), ([^)]*)\) '\ | |
133 | 'args: \(([^,]*), ([^)]*)\)/'\ | |
daaf627a | 134 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 135 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
136 | ' TP_PROTO($4 $6, $5 $7),\n'\ |
137 | ' TP_ARGS($6, $7),\n'\ | |
138 | ' TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\ | |
d0b4f04b | 139 | ' TP_fast_assign(tp_assign($4, $6, $6) tp_assign($5, $7, $7)),\n'\ |
5fee13fd | 140 | ' TP_printk()\n'\ |
1dc9d1cf MD |
141 | ')\n'\ |
142 | '#endif/g'\ | |
5fee13fd MD |
143 | ${TMPFILE} >> ${HEADER} |
144 | ||
145 | # types: 4 5 6 | |
146 | # args 7 8 9 | |
147 | ||
148 | NRARGS=3 | |
149 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
150 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
151 | 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\ | |
152 | 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 153 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 154 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
155 | ' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\ |
156 | ' TP_ARGS($7, $8, $9),\n'\ | |
157 | ' TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\ | |
d0b4f04b | 158 | ' TP_fast_assign(tp_assign($4, $7, $7) tp_assign($5, $8, $8) tp_assign($6, $9, $9)),\n'\ |
5fee13fd | 159 | ' TP_printk()\n'\ |
1dc9d1cf MD |
160 | ')\n'\ |
161 | '#endif/g'\ | |
5fee13fd MD |
162 | ${TMPFILE} >> ${HEADER} |
163 | ||
164 | ||
165 | # types: 4 5 6 7 | |
166 | # args 8 9 10 11 | |
167 | ||
168 | NRARGS=4 | |
169 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
170 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
171 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
172 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 173 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 174 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
175 | ' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\ |
176 | ' TP_ARGS($8, $9, $10, $11),\n'\ | |
177 | ' TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\ | |
d0b4f04b | 178 | ' 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 | 179 | ' TP_printk()\n'\ |
1dc9d1cf MD |
180 | ')\n'\ |
181 | '#endif/g'\ | |
5fee13fd MD |
182 | ${TMPFILE} >> ${HEADER} |
183 | ||
184 | # types: 4 5 6 7 8 | |
185 | # args 9 10 11 12 13 | |
186 | ||
187 | NRARGS=5 | |
188 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
189 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
190 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
191 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
daaf627a | 192 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 193 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
194 | ' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\ |
195 | ' TP_ARGS($9, $10, $11, $12, $13),\n'\ | |
196 | ' TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\ | |
d0b4f04b | 197 | ' 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 | 198 | ' TP_printk()\n'\ |
1dc9d1cf MD |
199 | ')\n'\ |
200 | '#endif/g'\ | |
5fee13fd MD |
201 | ${TMPFILE} >> ${HEADER} |
202 | ||
203 | ||
204 | # types: 4 5 6 7 8 9 | |
205 | # args 10 11 12 13 14 15 | |
206 | ||
207 | NRARGS=6 | |
208 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
209 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
210 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\ | |
211 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\ | |
daaf627a | 212 | '#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\ |
a93244f8 | 213 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
214 | ' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\ |
215 | ' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\ | |
216 | ' TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\ | |
d0b4f04b | 217 | ' 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 | 218 | ' TP_printk()\n'\ |
1dc9d1cf MD |
219 | ')\n'\ |
220 | '#endif/g'\ | |
5fee13fd MD |
221 | ${TMPFILE} >> ${HEADER} |
222 | ||
9b6d7a0c MD |
223 | # Macro for tracing syscall table |
224 | ||
054f2ed3 | 225 | echo \ |
5fee13fd | 226 | " |
177b3692 | 227 | #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */ |
5fee13fd MD |
228 | |
229 | /* This part must be outside protection */ | |
230 | #include \"../../../probes/define_trace.h\" | |
054f2ed3 MD |
231 | |
232 | #else /* CREATE_SYSCALL_TABLE */ | |
054f2ed3 | 233 | |
cac8f1aa | 234 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
daaf627a | 235 | #include \"syscalls_${CLASS}_override.h\" |
cac8f1aa | 236 | " >> ${HEADER} |
f7bdf4db MD |
237 | |
238 | NRARGS=0 | |
f7bdf4db | 239 | |
25631135 | 240 | if [ "$CLASS" = integers ]; then |
f7bdf4db | 241 | #noargs |
25631135 | 242 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
177b3692 | 243 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 244 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
245 | 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\ |
246 | '#endif/g'\ | |
f7bdf4db | 247 | ${TMPFILE} >> ${HEADER} |
25631135 | 248 | fi |
f7bdf4db MD |
249 | |
250 | #others. | |
251 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 | 252 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
daaf627a | 253 | '#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\ |
cac8f1aa MD |
254 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\ |
255 | '#endif/g'\ | |
054f2ed3 MD |
256 | ${TMPFILE} >> ${HEADER} |
257 | ||
258 | echo -n \ | |
259 | " | |
260 | #endif /* CREATE_SYSCALL_TABLE */ | |
5fee13fd MD |
261 | " >> ${HEADER} |
262 | ||
e374aaf1 MD |
263 | #fields names: ...char * type with *name* or *file* or *path* or *root* |
264 | # or *put_old* or *type* | |
2a153251 MD |
265 | cp -f ${HEADER} ${TMPFILE} |
266 | rm -f ${HEADER} | |
67308615 | 267 | perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string_from_user($2$3$4, $2$3$4)/g'\ |
2a153251 | 268 | ${TMPFILE} >> ${HEADER} |
f4c4a6ae MD |
269 | cp -f ${HEADER} ${TMPFILE} |
270 | rm -f ${HEADER} | |
e374aaf1 | 271 | 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 | 272 | ${TMPFILE} >> ${HEADER} |
d0b4f04b MD |
273 | |
274 | #prettify addresses heuristics. | |
275 | #field names with addr or ptr | |
f4c4a6ae MD |
276 | cp -f ${HEADER} ${TMPFILE} |
277 | rm -f ${HEADER} | |
d0b4f04b | 278 | perl -p -e 's/__field\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\ |
f4c4a6ae MD |
279 | ${TMPFILE} >> ${HEADER} |
280 | ||
d0b4f04b | 281 | #field types ending with '*' |
2a153251 MD |
282 | cp -f ${HEADER} ${TMPFILE} |
283 | rm -f ${HEADER} | |
2a153251 MD |
284 | perl -p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\ |
285 | ${TMPFILE} >> ${HEADER} | |
286 | ||
d0b4f04b MD |
287 | #strip the extra type information from tp_assign. |
288 | cp -f ${HEADER} ${TMPFILE} | |
289 | rm -f ${HEADER} | |
290 | perl -p -e 's/tp_assign\(([^,)]*), ([^,]*), ([^\)]*)\)/tp_assign($2, $3)/g'\ | |
291 | ${TMPFILE} >> ${HEADER} | |
f4c4a6ae | 292 | |
5fee13fd MD |
293 | rm -f ${INPUTFILE}.tmp |
294 | rm -f ${TMPFILE} | |
295 | rm -f ${SRCFILE} |