3 Commits

Author	SHA1	Message	Date
Nick Mathewson	d631ddfb59	Make backtrace handler handle signals correctly. ... This meant moving a fair bit of code around, and writing a signal cleanup function. Still pretty nice from what I can tell, though.	2013-11-18 10:43:15 -05:00
Nick Mathewson	bd8ad674b9	Add a sighandler-safe logging mechanism ... We had accidentially grown two fake ones: one for backtrace.c, and one for sandbox.c. Let's do this properly instead. Now, when we configure logs, we keep track of fds that should get told about bad stuff happening from signal handlers. There's another entry point for these that avoids using non-signal-handler-safe functions.	2013-11-18 10:43:15 -05:00
Nick Mathewson	063bea58bc	Basic backtrace ability ... On platforms with the backtrace/backtrace_symbols_fd interface, Tor can now dump stack traces on assertion failure. By default, I log them to DataDir/stack_dump and to stderr.	2013-11-18 10:43:14 -05:00