| 1 | #!/bin/sh |
| 2 | |
| 3 | # Generate system call probe description macros from syscall metadata dump file. |
| 4 | # example usage: |
| 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 |
| 8 | |
| 9 | CLASS=$1 |
| 10 | INPUTDIR=$2 |
| 11 | INPUTFILE=$3 |
| 12 | INPUT=${INPUTDIR}/${INPUTFILE} |
| 13 | SRCFILE=gen.tmp.0 |
| 14 | TMPFILE=gen.tmp.1 |
| 15 | HEADER=headers/${INPUTFILE}_${CLASS}.h |
| 16 | |
| 17 | cp ${INPUT} ${SRCFILE} |
| 18 | |
| 19 | #Cleanup |
| 20 | perl -p -e 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE} |
| 21 | mv ${TMPFILE} ${SRCFILE} |
| 22 | |
| 23 | perl -p -e 's/^syscall sys_([^ ]*)/syscall $1/g' ${SRCFILE} > ${TMPFILE} |
| 24 | mv ${TMPFILE} ${SRCFILE} |
| 25 | |
| 26 | #Filter |
| 27 | |
| 28 | if [ "$CLASS" = integers ]; then |
| 29 | #select integers and no-args. |
| 30 | CLASSCAP=INTEGERS |
| 31 | grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE} |
| 32 | mv ${TMPFILE} ${SRCFILE} |
| 33 | fi |
| 34 | |
| 35 | |
| 36 | if [ "$CLASS" = pointers ]; then |
| 37 | #select system calls using pointers. |
| 38 | CLASSCAP=POINTERS |
| 39 | grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE} |
| 40 | mv ${TMPFILE} ${SRCFILE} |
| 41 | fi |
| 42 | |
| 43 | echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER} |
| 44 | |
| 45 | echo \ |
| 46 | "#ifndef CREATE_SYSCALL_TABLE |
| 47 | |
| 48 | #undef TRACE_SYSTEM |
| 49 | #define TRACE_SYSTEM syscalls_${CLASS} |
| 50 | |
| 51 | #if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ) |
| 52 | #define _TRACE_SYSCALLS_${CLASSCAP}_H |
| 53 | |
| 54 | #include <linux/tracepoint.h> |
| 55 | #include <linux/syscalls.h> |
| 56 | " >> ${HEADER} |
| 57 | |
| 58 | if [ "$CLASS" = integers ]; then |
| 59 | |
| 60 | NRARGS=0 |
| 61 | |
| 62 | echo \ |
| 63 | 'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
| 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} |
| 71 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 72 | 'types: \(([^)]*)\) '\ |
| 73 | 'args: \(([^)]*)\)/'\ |
| 74 | 'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)'\ |
| 75 | '/g'\ |
| 76 | ${TMPFILE} >> ${HEADER} |
| 77 | |
| 78 | fi |
| 79 | |
| 80 | |
| 81 | # types: 4 |
| 82 | # args 5 |
| 83 | |
| 84 | NRARGS=1 |
| 85 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 86 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 87 | 'types: \(([^)]*)\) '\ |
| 88 | 'args: \(([^)]*)\)/'\ |
| 89 | 'TRACE_EVENT(sys_$1,\n'\ |
| 90 | ' TP_PROTO($4 $5),\n'\ |
| 91 | ' TP_ARGS($5),\n'\ |
| 92 | ' TP_STRUCT__entry(__field($4, $5)),\n'\ |
| 93 | ' TP_fast_assign(tp_assign($5, $5)),\n'\ |
| 94 | ' TP_printk()\n'\ |
| 95 | ')/g'\ |
| 96 | ${TMPFILE} >> ${HEADER} |
| 97 | |
| 98 | # types: 4 5 |
| 99 | # args 6 7 |
| 100 | |
| 101 | NRARGS=2 |
| 102 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 103 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 104 | 'types: \(([^,]*), ([^)]*)\) '\ |
| 105 | 'args: \(([^,]*), ([^)]*)\)/'\ |
| 106 | 'TRACE_EVENT(sys_$1,\n'\ |
| 107 | ' TP_PROTO($4 $6, $5 $7),\n'\ |
| 108 | ' TP_ARGS($6, $7),\n'\ |
| 109 | ' TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\ |
| 110 | ' TP_fast_assign(tp_assign($6, $6) tp_assign($7, $7)),\n'\ |
| 111 | ' TP_printk()\n'\ |
| 112 | ')/g'\ |
| 113 | ${TMPFILE} >> ${HEADER} |
| 114 | |
| 115 | # types: 4 5 6 |
| 116 | # args 7 8 9 |
| 117 | |
| 118 | NRARGS=3 |
| 119 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 120 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 121 | 'types: \(([^,]*), ([^,]*), ([^)]*)\) '\ |
| 122 | 'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\ |
| 123 | 'TRACE_EVENT(sys_$1,\n'\ |
| 124 | ' TP_PROTO($4 $7, $5 $8, $6 $9),\n'\ |
| 125 | ' TP_ARGS($7, $8, $9),\n'\ |
| 126 | ' TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\ |
| 127 | ' TP_fast_assign(tp_assign($7, $7) tp_assign($8, $8) tp_assign($9, $9)),\n'\ |
| 128 | ' TP_printk()\n'\ |
| 129 | ')/g'\ |
| 130 | ${TMPFILE} >> ${HEADER} |
| 131 | |
| 132 | |
| 133 | # types: 4 5 6 7 |
| 134 | # args 8 9 10 11 |
| 135 | |
| 136 | NRARGS=4 |
| 137 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 138 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 139 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ |
| 140 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ |
| 141 | 'TRACE_EVENT(sys_$1,\n'\ |
| 142 | ' TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\ |
| 143 | ' TP_ARGS($8, $9, $10, $11),\n'\ |
| 144 | ' TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\ |
| 145 | ' TP_fast_assign(tp_assign($8, $8) tp_assign($9, $9) tp_assign($10, $10) tp_assign($11, $11)),\n'\ |
| 146 | ' TP_printk()\n'\ |
| 147 | ')/g'\ |
| 148 | ${TMPFILE} >> ${HEADER} |
| 149 | |
| 150 | # types: 4 5 6 7 8 |
| 151 | # args 9 10 11 12 13 |
| 152 | |
| 153 | NRARGS=5 |
| 154 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 155 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 156 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\ |
| 157 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\ |
| 158 | 'TRACE_EVENT(sys_$1,\n'\ |
| 159 | ' TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\ |
| 160 | ' TP_ARGS($9, $10, $11, $12, $13),\n'\ |
| 161 | ' TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\ |
| 162 | ' TP_fast_assign(tp_assign($9, $9) tp_assign($10, $10) tp_assign($11, $11) tp_assign($12, $12) tp_assign($13, $13)),\n'\ |
| 163 | ' TP_printk()\n'\ |
| 164 | ')/g'\ |
| 165 | ${TMPFILE} >> ${HEADER} |
| 166 | |
| 167 | |
| 168 | # types: 4 5 6 7 8 9 |
| 169 | # args 10 11 12 13 14 15 |
| 170 | |
| 171 | NRARGS=6 |
| 172 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 173 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\ |
| 174 | 'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\ |
| 175 | 'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\ |
| 176 | 'TRACE_EVENT(sys_$1,\n'\ |
| 177 | ' TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\ |
| 178 | ' TP_ARGS($10, $11, $12, $13, $14, $15),\n'\ |
| 179 | ' TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\ |
| 180 | ' TP_fast_assign(tp_assign($10, $10) tp_assign($11, $11) tp_assign($12, $12) tp_assign($13, $13) tp_assign($14, $14) tp_assign($15, $15)),\n'\ |
| 181 | ' TP_printk()\n'\ |
| 182 | ')/g'\ |
| 183 | ${TMPFILE} >> ${HEADER} |
| 184 | |
| 185 | # Macro for tracing syscall table |
| 186 | |
| 187 | rm -f ${TMPFILE} |
| 188 | for NRARGS in $(seq 0 6); do |
| 189 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE} |
| 190 | done |
| 191 | |
| 192 | echo \ |
| 193 | " |
| 194 | #endif /* _TRACE_SYSCALLS_${CLASSCAP}_H */ |
| 195 | |
| 196 | /* This part must be outside protection */ |
| 197 | #include \"../../../probes/define_trace.h\" |
| 198 | |
| 199 | #else /* CREATE_SYSCALL_TABLE */ |
| 200 | " >> ${HEADER} |
| 201 | |
| 202 | |
| 203 | NRARGS=0 |
| 204 | |
| 205 | if [ "$CLASS" = integers ]; then |
| 206 | #noargs |
| 207 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 208 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
| 209 | 'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)/g'\ |
| 210 | ${TMPFILE} >> ${HEADER} |
| 211 | fi |
| 212 | |
| 213 | #others. |
| 214 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 215 | perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\ |
| 216 | 'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)/g'\ |
| 217 | ${TMPFILE} >> ${HEADER} |
| 218 | |
| 219 | echo -n \ |
| 220 | " |
| 221 | #endif /* CREATE_SYSCALL_TABLE */ |
| 222 | " >> ${HEADER} |
| 223 | |
| 224 | rm -f ${INPUTFILE}.tmp |
| 225 | rm -f ${TMPFILE} |
| 226 | rm -f ${SRCFILE} |