| 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 | |
| 16 | cp ${INPUT} ${SRCFILE} |
| 17 | |
| 18 | #Cleanup |
| 19 | sed 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE} |
| 20 | mv ${TMPFILE} ${SRCFILE} |
| 21 | |
| 22 | sed 's/^syscall sys_\([^ ]*\)/syscall \1/g' ${SRCFILE} > ${TMPFILE} |
| 23 | mv ${TMPFILE} ${SRCFILE} |
| 24 | |
| 25 | #Filter |
| 26 | |
| 27 | if [ "$CLASS" = integers ]; then |
| 28 | #select integers and no-args. |
| 29 | grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE} |
| 30 | mv ${TMPFILE} ${SRCFILE} |
| 31 | fi |
| 32 | |
| 33 | |
| 34 | if [ "$CLASS" = pointers ]; then |
| 35 | #select system calls using pointers. |
| 36 | grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE} |
| 37 | mv ${TMPFILE} ${SRCFILE} |
| 38 | fi |
| 39 | |
| 40 | HEADER=headers/${INPUTFILE}-${CLASS}.h |
| 41 | |
| 42 | echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER} |
| 43 | |
| 44 | echo \ |
| 45 | "#ifndef CREATE_SYSCALL_TABLE |
| 46 | |
| 47 | #undef TRACE_SYSTEM |
| 48 | #define TRACE_SYSTEM syscalls |
| 49 | |
| 50 | #if !defined(_TRACE_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ) |
| 51 | #define _TRACE_SYSCALLS_H |
| 52 | |
| 53 | #include <linux/tracepoint.h> |
| 54 | #include <linux/syscalls.h> |
| 55 | " >> ${HEADER} |
| 56 | |
| 57 | if [ "$CLASS" = integers ]; then |
| 58 | |
| 59 | NRARGS=0 |
| 60 | |
| 61 | echo \ |
| 62 | 'DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\ |
| 63 | ' TP_STRUCT__entry(),\n'\ |
| 64 | ' TP_fast_assign(),\n'\ |
| 65 | ' TP_printk()\n'\ |
| 66 | ')'\ |
| 67 | >> ${HEADER} |
| 68 | |
| 69 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 70 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 71 | 'types: (\([^)]*\)) '\ |
| 72 | 'args: (\([^)]*\))/'\ |
| 73 | 'DEFINE_EVENT_NOARGS(syscalls_noargs, sys_\1)'\ |
| 74 | '/g'\ |
| 75 | ${TMPFILE} >> ${HEADER} |
| 76 | |
| 77 | fi |
| 78 | |
| 79 | # types: 4 |
| 80 | # args 5 |
| 81 | |
| 82 | NRARGS=1 |
| 83 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 84 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 85 | 'types: (\([^)]*\)) '\ |
| 86 | 'args: (\([^)]*\))/'\ |
| 87 | 'TRACE_EVENT(sys_\1,\n'\ |
| 88 | ' TP_PROTO(\4 \5),\n'\ |
| 89 | ' TP_ARGS(\5),\n'\ |
| 90 | ' TP_STRUCT__entry(__field(\4, \5)),\n'\ |
| 91 | ' TP_fast_assign(tp_assign(\5, \5)),\n'\ |
| 92 | ' TP_printk()\n'\ |
| 93 | ')/g'\ |
| 94 | ${TMPFILE} >> ${HEADER} |
| 95 | |
| 96 | # types: 4 5 |
| 97 | # args 6 7 |
| 98 | |
| 99 | NRARGS=2 |
| 100 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 101 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 102 | 'types: (\([^,]*\), \([^)]*\)) '\ |
| 103 | 'args: (\([^,]*\), \([^)]*\))/'\ |
| 104 | 'TRACE_EVENT(sys_\1,\n'\ |
| 105 | ' TP_PROTO(\4 \6, \5 \7),\n'\ |
| 106 | ' TP_ARGS(\6, \7),\n'\ |
| 107 | ' TP_STRUCT__entry(__field(\4, \6) __field(\5, \7)),\n'\ |
| 108 | ' TP_fast_assign(tp_assign(\6, \6) tp_assign(\7, \7)),\n'\ |
| 109 | ' TP_printk()\n'\ |
| 110 | ')/g'\ |
| 111 | ${TMPFILE} >> ${HEADER} |
| 112 | |
| 113 | # types: 4 5 6 |
| 114 | # args 7 8 9 |
| 115 | |
| 116 | NRARGS=3 |
| 117 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 118 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 119 | 'types: (\([^,]*\), \([^,]*\), \([^)]*\)) '\ |
| 120 | 'args: (\([^,]*\), \([^,]*\), \([^)]*\))/'\ |
| 121 | 'TRACE_EVENT(sys_\1,\n'\ |
| 122 | ' TP_PROTO(\4 \7, \5 \8, \6 \9),\n'\ |
| 123 | ' TP_ARGS(\7, \8, \9),\n'\ |
| 124 | ' TP_STRUCT__entry(__field(\4, \7) __field(\5, \8) __field(\6, \9)),\n'\ |
| 125 | ' TP_fast_assign(tp_assign(\7, \7) tp_assign(\8, \8) tp_assign(\9, \9)),\n'\ |
| 126 | ' TP_printk()\n'\ |
| 127 | ')/g'\ |
| 128 | ${TMPFILE} >> ${HEADER} |
| 129 | |
| 130 | |
| 131 | # types: 4 5 6 7 |
| 132 | # args 8 9 10 11 |
| 133 | |
| 134 | NRARGS=4 |
| 135 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 136 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 137 | 'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\ |
| 138 | 'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\ |
| 139 | 'TRACE_EVENT(sys_\1,\n'\ |
| 140 | ' TP_PROTO(\4 \8, \5 \9, \6 \10, \7 \11),\n'\ |
| 141 | ' TP_ARGS(\8, \9, \10, \11),\n'\ |
| 142 | ' TP_STRUCT__entry(__field(\4, \8) __field(\5, \9) __field(\6, \10) __field(\7, \11)),\n'\ |
| 143 | ' TP_fast_assign(tp_assign(\8, \8) tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11)),\n'\ |
| 144 | ' TP_printk()\n'\ |
| 145 | ')/g'\ |
| 146 | ${TMPFILE} >> ${HEADER} |
| 147 | |
| 148 | # types: 4 5 6 7 8 |
| 149 | # args 9 10 11 12 13 |
| 150 | |
| 151 | NRARGS=5 |
| 152 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 153 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 154 | 'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\ |
| 155 | 'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\ |
| 156 | 'TRACE_EVENT(sys_\1,\n'\ |
| 157 | ' TP_PROTO(\4 \9, \5 \10, \6 \11, \7 \12, \8 \13),\n'\ |
| 158 | ' TP_ARGS(\9, \10, \11, \12, \13),\n'\ |
| 159 | ' TP_STRUCT__entry(__field(\4, \9) __field(\5, \10) __field(\6, \11) __field(\7, \12) __field(\8, \13)),\n'\ |
| 160 | ' TP_fast_assign(tp_assign(\9, \9) tp_assign(\10, \10) tp_assign(\11, \11) tp_assign(\12, \12) tp_assign(\13, \13)),\n'\ |
| 161 | ' TP_printk()\n'\ |
| 162 | ')/g'\ |
| 163 | ${TMPFILE} >> ${HEADER} |
| 164 | |
| 165 | |
| 166 | # types: 4 5 6 7 8 9 |
| 167 | # args 10 11 12 13 14 15 |
| 168 | |
| 169 | NRARGS=6 |
| 170 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 171 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\ |
| 172 | 'types: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\)) '\ |
| 173 | 'args: (\([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^,]*\), \([^)]*\))/'\ |
| 174 | 'TRACE_EVENT(sys_\1,\n'\ |
| 175 | ' TP_PROTO(\4 \10, \5 \11, \6 \12, \7 \13, \8 \14, \9 \15),\n'\ |
| 176 | ' TP_ARGS(\10, \11, \12, \13, \14, \15),\n'\ |
| 177 | ' TP_STRUCT__entry(__field(\4, \10) __field(\5, \11) __field(\6, \12) __field(\7, \13) __field(\8, \14) __field(\9, \15)),\n'\ |
| 178 | ' 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'\ |
| 179 | ' TP_printk()\n'\ |
| 180 | ')/g'\ |
| 181 | ${TMPFILE} >> ${HEADER} |
| 182 | |
| 183 | # Macro for tracing syscall table |
| 184 | |
| 185 | rm -f ${TMPFILE} |
| 186 | for NRARGS in $(seq 0 6); do |
| 187 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE} |
| 188 | done |
| 189 | |
| 190 | echo \ |
| 191 | " |
| 192 | #endif /* _TRACE_SYSCALLS_H */ |
| 193 | |
| 194 | /* This part must be outside protection */ |
| 195 | #include \"../../../probes/define_trace.h\" |
| 196 | |
| 197 | #else /* CREATE_SYSCALL_TABLE */ |
| 198 | " >> ${HEADER} |
| 199 | |
| 200 | |
| 201 | NRARGS=0 |
| 202 | |
| 203 | if [ "$CLASS" = integers ]; then |
| 204 | #noargs |
| 205 | grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 206 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\ |
| 207 | 'TRACE_SYSCALL_TABLE(syscalls_noargs, sys_\1, \2, \3)/g'\ |
| 208 | ${TMPFILE} >> ${HEADER} |
| 209 | fi |
| 210 | |
| 211 | #others. |
| 212 | grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE} |
| 213 | sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\ |
| 214 | 'TRACE_SYSCALL_TABLE(sys_\1, sys_\1, \2, \3)/g'\ |
| 215 | ${TMPFILE} >> ${HEADER} |
| 216 | |
| 217 | echo -n \ |
| 218 | " |
| 219 | #endif /* CREATE_SYSCALL_TABLE */ |
| 220 | " >> ${HEADER} |
| 221 | |
| 222 | rm -f ${INPUTFILE}.tmp |
| 223 | rm -f ${TMPFILE} |
| 224 | rm -f ${SRCFILE} |