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