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 */" > ${HEADER} |
44 | ||
45 | echo \ | |
054f2ed3 MD |
46 | "#ifndef CREATE_SYSCALL_TABLE |
47 | ||
177b3692 MD |
48 | #if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ) |
49 | #define _TRACE_SYSCALLS_${CLASSCAP}_H | |
5fee13fd MD |
50 | |
51 | #include <linux/tracepoint.h> | |
52 | #include <linux/syscalls.h> | |
1dc9d1cf | 53 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
5fee13fd MD |
54 | " >> ${HEADER} |
55 | ||
25631135 MD |
56 | if [ "$CLASS" = integers ]; then |
57 | ||
f7bdf4db MD |
58 | NRARGS=0 |
59 | ||
60 | echo \ | |
a93244f8 | 61 | 'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
f7bdf4db MD |
62 | ' TP_STRUCT__entry(),\n'\ |
63 | ' TP_fast_assign(),\n'\ | |
64 | ' TP_printk()\n'\ | |
65 | ')'\ | |
66 | >> ${HEADER} | |
67 | ||
68 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
69 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
70 | 'types: \(([^)]*)\) '\ | |
71 | 'args: \(([^)]*)\)/'\ | |
1dc9d1cf | 72 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 73 | 'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\ |
1dc9d1cf | 74 | '#endif/g'\ |
f7bdf4db MD |
75 | ${TMPFILE} >> ${HEADER} |
76 | ||
25631135 | 77 | fi |
5fee13fd | 78 | |
177b3692 | 79 | |
5fee13fd MD |
80 | # types: 4 |
81 | # args 5 | |
82 | ||
83 | NRARGS=1 | |
84 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
85 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
86 | 'types: \(([^)]*)\) '\ | |
87 | 'args: \(([^)]*)\)/'\ | |
1dc9d1cf | 88 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 89 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
90 | ' TP_PROTO($4 $5),\n'\ |
91 | ' TP_ARGS($5),\n'\ | |
92 | ' TP_STRUCT__entry(__field($4, $5)),\n'\ | |
d0b4f04b | 93 | ' TP_fast_assign(tp_assign($4, $5, $5)),\n'\ |
5fee13fd | 94 | ' TP_printk()\n'\ |
1dc9d1cf MD |
95 | ')\n'\ |
96 | '#endif/g'\ | |
5fee13fd MD |
97 | ${TMPFILE} >> ${HEADER} |
98 | ||
99 | # types: 4 5 | |
100 | # args 6 7 | |
101 | ||
102 | NRARGS=2 | |
103 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
104 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
105 | 'types: \(([^,]*), ([^)]*)\) '\ | |
106 | 'args: \(([^,]*), ([^)]*)\)/'\ | |
1dc9d1cf | 107 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 108 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
109 | ' TP_PROTO($4 $6, $5 $7),\n'\ |
110 | ' TP_ARGS($6, $7),\n'\ | |
111 | ' TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\ | |
d0b4f04b | 112 | ' TP_fast_assign(tp_assign($4, $6, $6) tp_assign($5, $7, $7)),\n'\ |
5fee13fd | 113 | ' TP_printk()\n'\ |
1dc9d1cf MD |
114 | ')\n'\ |
115 | '#endif/g'\ | |
5fee13fd MD |
116 | ${TMPFILE} >> ${HEADER} |
117 | ||
118 | # types: 4 5 6 | |
119 | # args 7 8 9 | |
120 | ||
121 | NRARGS=3 | |
122 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
123 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
124 | 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\ | |
125 | 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\ | |
1dc9d1cf | 126 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 127 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
128 | ' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\ |
129 | ' TP_ARGS($7, $8, $9),\n'\ | |
130 | ' TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\ | |
d0b4f04b | 131 | ' TP_fast_assign(tp_assign($4, $7, $7) tp_assign($5, $8, $8) tp_assign($6, $9, $9)),\n'\ |
5fee13fd | 132 | ' TP_printk()\n'\ |
1dc9d1cf MD |
133 | ')\n'\ |
134 | '#endif/g'\ | |
5fee13fd MD |
135 | ${TMPFILE} >> ${HEADER} |
136 | ||
137 | ||
138 | # types: 4 5 6 7 | |
139 | # args 8 9 10 11 | |
140 | ||
141 | NRARGS=4 | |
142 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
143 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
144 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
145 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
1dc9d1cf | 146 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 147 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
148 | ' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\ |
149 | ' TP_ARGS($8, $9, $10, $11),\n'\ | |
150 | ' TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\ | |
d0b4f04b | 151 | ' 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 | 152 | ' TP_printk()\n'\ |
1dc9d1cf MD |
153 | ')\n'\ |
154 | '#endif/g'\ | |
5fee13fd MD |
155 | ${TMPFILE} >> ${HEADER} |
156 | ||
157 | # types: 4 5 6 7 8 | |
158 | # args 9 10 11 12 13 | |
159 | ||
160 | NRARGS=5 | |
161 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
162 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
163 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ | |
164 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ | |
1dc9d1cf | 165 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 166 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
167 | ' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\ |
168 | ' TP_ARGS($9, $10, $11, $12, $13),\n'\ | |
169 | ' TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\ | |
d0b4f04b | 170 | ' 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 | 171 | ' TP_printk()\n'\ |
1dc9d1cf MD |
172 | ')\n'\ |
173 | '#endif/g'\ | |
5fee13fd MD |
174 | ${TMPFILE} >> ${HEADER} |
175 | ||
176 | ||
177 | # types: 4 5 6 7 8 9 | |
178 | # args 10 11 12 13 14 15 | |
179 | ||
180 | NRARGS=6 | |
181 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 MD |
182 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
183 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\ | |
184 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\ | |
1dc9d1cf | 185 | '#ifndef OVERRIDE_sys_$1\n'\ |
a93244f8 | 186 | 'SC_TRACE_EVENT(sys_$1,\n'\ |
177b3692 MD |
187 | ' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\ |
188 | ' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\ | |
189 | ' TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\ | |
d0b4f04b | 190 | ' 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 | 191 | ' TP_printk()\n'\ |
1dc9d1cf MD |
192 | ')\n'\ |
193 | '#endif/g'\ | |
5fee13fd MD |
194 | ${TMPFILE} >> ${HEADER} |
195 | ||
9b6d7a0c MD |
196 | # Macro for tracing syscall table |
197 | ||
e15b0e20 | 198 | rm -f ${TMPFILE} |
f7bdf4db | 199 | for NRARGS in $(seq 0 6); do |
e15b0e20 MD |
200 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE} |
201 | done | |
202 | ||
054f2ed3 | 203 | echo \ |
5fee13fd | 204 | " |
177b3692 | 205 | #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */ |
5fee13fd MD |
206 | |
207 | /* This part must be outside protection */ | |
208 | #include \"../../../probes/define_trace.h\" | |
054f2ed3 MD |
209 | |
210 | #else /* CREATE_SYSCALL_TABLE */ | |
054f2ed3 | 211 | |
cac8f1aa MD |
212 | #include \"${INPUTFILE}_${CLASS}_override.h\" |
213 | " >> ${HEADER} | |
f7bdf4db MD |
214 | |
215 | NRARGS=0 | |
f7bdf4db | 216 | |
25631135 | 217 | if [ "$CLASS" = integers ]; then |
f7bdf4db | 218 | #noargs |
25631135 | 219 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
177b3692 | 220 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
7e42c4ec | 221 | '#ifndef OVERRIDE_TABLE_sys_$1\n'\ |
cac8f1aa MD |
222 | 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\ |
223 | '#endif/g'\ | |
f7bdf4db | 224 | ${TMPFILE} >> ${HEADER} |
25631135 | 225 | fi |
f7bdf4db MD |
226 | |
227 | #others. | |
228 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} | |
177b3692 | 229 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
7e42c4ec | 230 | '#ifndef OVERRIDE_TABLE_sys_$1\n'\ |
cac8f1aa MD |
231 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\ |
232 | '#endif/g'\ | |
054f2ed3 MD |
233 | ${TMPFILE} >> ${HEADER} |
234 | ||
235 | echo -n \ | |
236 | " | |
237 | #endif /* CREATE_SYSCALL_TABLE */ | |
5fee13fd MD |
238 | " >> ${HEADER} |
239 | ||
e374aaf1 MD |
240 | #fields names: ...char * type with *name* or *file* or *path* or *root* |
241 | # or *put_old* or *type* | |
2a153251 MD |
242 | cp -f ${HEADER} ${TMPFILE} |
243 | rm -f ${HEADER} | |
e374aaf1 | 244 | perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string($2$3$4, $2$3$4)/g'\ |
2a153251 | 245 | ${TMPFILE} >> ${HEADER} |
f4c4a6ae MD |
246 | cp -f ${HEADER} ${TMPFILE} |
247 | rm -f ${HEADER} | |
e374aaf1 | 248 | 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 | 249 | ${TMPFILE} >> ${HEADER} |
d0b4f04b MD |
250 | |
251 | #prettify addresses heuristics. | |
252 | #field names with addr or ptr | |
f4c4a6ae MD |
253 | cp -f ${HEADER} ${TMPFILE} |
254 | rm -f ${HEADER} | |
d0b4f04b | 255 | perl -p -e 's/__field\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\ |
f4c4a6ae MD |
256 | ${TMPFILE} >> ${HEADER} |
257 | ||
d0b4f04b | 258 | #field types ending with '*' |
2a153251 MD |
259 | cp -f ${HEADER} ${TMPFILE} |
260 | rm -f ${HEADER} | |
2a153251 MD |
261 | perl -p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\ |
262 | ${TMPFILE} >> ${HEADER} | |
263 | ||
d0b4f04b MD |
264 | #strip the extra type information from tp_assign. |
265 | cp -f ${HEADER} ${TMPFILE} | |
266 | rm -f ${HEADER} | |
267 | perl -p -e 's/tp_assign\(([^,)]*), ([^,]*), ([^\)]*)\)/tp_assign($2, $3)/g'\ | |
268 | ${TMPFILE} >> ${HEADER} | |
f4c4a6ae | 269 | |
5fee13fd MD |
270 | rm -f ${INPUTFILE}.tmp |
271 | rm -f ${TMPFILE} | |
272 | rm -f ${SRCFILE} |