Bruce Simpson wrote:
> [1] P.S. I reckon a backtrace dumper for production builds could be
> knocked up really quickly.
This guy has the magic:
http://idlebox.net/2008/0901-stacktrace-demangled/
... so I guess a SCons check is needed for backtrace() and
backtrace_symbols() in libexecinfo (the *BSD port of the GLIBC
backtrace() module) and libc, __cxa_demangle() in libstdc++, plus header
checks on <execinfo.h> and <cxxabi.h>.
I'd probably add an XLOG_BACKTRACE() macro to xlog.h, and omit the
time/date prologue appropriately using something similar to
XLOG_LEVEL_RTRMGR_ONLY_NO_PREAMBLE.
I'd introduce the backtrace wrapper code to xorp_backtrace() in
libxorp/debug.c. We can't really get away from using heap storage in
this situation (because of all the string processing), so if the heap is
toasted, all bets are off.
XLOG_FATAL() and XLOG_ASSERT() could then be taught to xorp_backtrace()
in most situations.
I'm off out the door now today. If I hadn't been stuck on C++0x template
aliases, this would probably be done now.
cheers,
BMS
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