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8 commits

Author SHA1 Message Date
moneromooo-monero
a854cec3ba
Make stack trace show up in log file with default settings 2017-01-21 20:28:18 +00:00
moneromooo-monero
5833d66f65
Change logging to easylogging++
This replaces the epee and data_loggers logging systems with
a single one, and also adds filename:line and explicit severity
levels. Categories may be defined, and logging severity set
by category (or set of categories). epee style 0-4 log level
maps to a sensible severity configuration. Log files now also
rotate when reaching 100 MB.

To select which logs to output, use the MONERO_LOGS environment
variable, with a comma separated list of categories (globs are
supported), with their requested severity level after a colon.
If a log matches more than one such setting, the last one in
the configuration string applies. A few examples:

This one is (mostly) silent, only outputting fatal errors:

MONERO_LOGS=*:FATAL

This one is very verbose:

MONERO_LOGS=*:TRACE

This one is totally silent (logwise):

MONERO_LOGS=""

This one outputs all errors and warnings, except for the
"verify" category, which prints just fatal errors (the verify
category is used for logs about incoming transactions and
blocks, and it is expected that some/many will fail to verify,
hence we don't want the spam):

MONERO_LOGS=*:WARNING,verify:FATAL

Log levels are, in decreasing order of priority:
FATAL, ERROR, WARNING, INFO, DEBUG, TRACE

Subcategories may be added using prefixes and globs. This
example will output net.p2p logs at the TRACE level, but all
other net* logs only at INFO:

MONERO_LOGS=*:ERROR,net*:INFO,net.p2p:TRACE

Logs which are intended for the user (which Monero was using
a lot through epee, but really isn't a nice way to go things)
should use the "global" category. There are a few helper macros
for using this category, eg: MGINFO("this shows up by default")
or MGINFO_RED("this is red"), to try to keep a similar look
and feel for now.

Existing epee log macros still exist, and map to the new log
levels, but since they're used as a "user facing" UI element
as much as a logging system, they often don't map well to log
severities (ie, a log level 0 log may be an error, or may be
something we want the user to see, such as an important info).
In those cases, I tried to use the new macros. In other cases,
I left the existing macros in. When modifying logs, it is
probably best to switch to the new macros with explicit levels.

The --log-level options and set_log commands now also accept
category settings, in addition to the epee style log levels.
2017-01-16 00:25:46 +00:00
Pierre Boyer
f4772bae81 Fix a few minor typos 2016-12-04 14:13:54 +01:00
redfish
0f990d0183 cmake,common: flag for stack trace
By default the flag is enabled whenever libunwind is found on the
system, with the exception of static build on OSX (for which we can't
install the throw hook #932 due to lack of support for --wrap in OSX
ld64 linker).
2016-07-27 01:52:33 -04:00
redfish
fa85cd845f common: stack trace: make clang happy with func ptrs
Tested that it builds with:
gcc 6.1.1, STATIC=OFF,i686
gcc 6.1.1, STATIC=OFF,armv7h
clang 3.8, STATIC=OFF,i686
clang 3.8, STATIC=OFF,armv7h

gcc 6.1.1, STATIC=ON,i686
clang 3.8, STATIC=ON,i686

Also tested that stack trace is generated fine on exception on:
i686, gcc 6.1.1, STATIC=OFF
(didn't bother testing all the other platforms/configs)

This should fix the build problem on OSX (#871, #901), but
I don't have OSX, so I could only test Clang on Linux.
2016-07-10 21:26:11 -04:00
luigi1111
d7189600ae
remove POSIX_C_SOURCE and remove dlfcn.h for static builds
The former was a faulty "fix" for gmtime_r not existing on Windows. The latter is needed only for dynamic builds, and is not included with msys2, which ends up fine because Windows is only built static at this time.
2016-06-21 11:16:25 -05:00
moneromooo-monero
15c2b69db7
common: fix build without libunwind 2016-06-20 19:23:32 +01:00
moneromooo-monero
e409e59d29
Print stack trace on exceptions
if libunwind is found.

Useful for debugging logs.
2016-04-28 23:34:51 +01:00