detailed syscall tracing (work in progress)

[lttng-modules.git] / instrumentation / syscalls / lttng-syscalls-generate-headers.sh

diff --git a/instrumentation/syscalls/lttng-syscalls-generate-headers.sh b/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
index 2e5dcc3cdd328159dae63b9b9c76f962855b32a5..87daf0fc1426af9c917a2d46d0a6b5da36dedd5e 100644 (file)
--- a/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
+++ b/instrumentation/syscalls/lttng-syscalls-generate-headers.sh
@@ -44,7 +44,9 @@ HEADER=headers/${INPUTFILE}-${CLASS}.h
 echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
 
 echo \
-"#undef TRACE_SYSTEM
+"#ifndef CREATE_SYSCALL_TABLE
+
+#undef TRACE_SYSTEM
 #define TRACE_SYSTEM syscalls
 
 #if !defined(_TRACE_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
@@ -162,16 +164,28 @@ sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) '\
 
 # Macro for tracing syscall table
 
-sed 's/^syscall \([^ ]*\) nr \([^ ]*\).*$/'\
-'TRACE_SYSCALL_TABLE(sys_\1, \2)/g'\
-       ${SRCFILE} >> ${HEADER}
+rm -f ${TMPFILE}
+for NRARGS in $(seq 1 6); do
+       grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE}
+done
 
-echo -n \
+echo \
 "
 #endif /*  _TRACE_SYSCALLS_H */
 
 /* This part must be outside protection */
 #include \"../../../probes/define_trace.h\"
+
+#else /* CREATE_SYSCALL_TABLE */
+" >> ${HEADER}
+
+sed 's/^syscall \([^ ]*\) nr \([^ ]*\) nbargs \([^ ]*\) .*$/'\
+'TRACE_SYSCALL_TABLE(sys_\1, \2, \3)/g'\
+       ${TMPFILE} >> ${HEADER}
+
+echo -n \
+"
+#endif /* CREATE_SYSCALL_TABLE */
 " >> ${HEADER}
 
 rm -f ${INPUTFILE}.tmp