Commit graph

5 commits

Author SHA1 Message Date
Jouni Malinen
94caf8cd62 trace: Filter out uninteresting functions from backtrace
This filters out the functions inside trace.c and functions before
main() since those are not relevant to the actual issue that is being
reported.
2009-12-22 01:29:15 +02:00
Jouni Malinen
a6ff0e0810 trace: Add active reference tracking
This WPA_TRACE=y additions allows components to register active references
to memory that has been provided to them as a pointer. If such an actively
referenced memory area is freed, tracer will report this as an error and
backtraces of both the invalid free and the location where this pointer
was marked referenced are shown.
2009-12-22 01:11:15 +02:00
Jouni Malinen
f2f7d965b8 Add option libbfd support for tracing code
CONFIG_WPA_TRACE=y and CONFIG_WPA_TRACE_BFD=y can now be used to get
even more complete symbols (func/file/line and inline functions) for
backtraces.
2009-12-20 23:35:06 +02:00
Jouni Malinen
fb4baa688b Add memory allocation analyzer to verify OS wrapper use
WPA_TRACE=y builds will now verify that memory allocation in done
consistently using os_{zalloc,malloc,realloc,strdup,free} (i.e., no
mixing of os_* functions and unwrapper functions). In addition, some
common memory allocation issues (double-free, memory leaks, etc.) are
detected automatically.
2009-12-19 21:47:56 +02:00
Jouni Malinen
930f704aac Add backtrace support for debugging
WPA_TRACE=y can now be used to enable internal backtrace support that
will provide more details about implementation errors, e.g., when some
resources are not released correctly. In addition, this will print out
a backtrace automatically if SIGSEGV is received.
2009-12-19 18:40:54 +02:00