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path: root/src/shared/log.h
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2015-02-18systemctl: let's make use of FOREACH_STRING() where we canLennart Poettering
2015-01-22log: add new log output mode, that prints to console, but prefixes with ↵Lennart Poettering
syslog priority This is useful when we execute our own programs, reading output from its STDERR, and want to retain priority information.
2015-01-11log: fix log_full_errno() with custom facilitiesDavid Herrmann
Make sure to extract the log-priority when comparing against max-log-level, otherwise, we will always drop those messages. This fixes bus-proxyd to properly send warnings on policy blocks.
2014-11-28shared: fix log_emergency_errno macroMichal Schmidt
It was not passing the error argument.
2014-11-28log: change log_xyz_errno() calls to always return the negative errorLennart Poettering
This enables us to write things like this: int open_some_file(void) { fd = open("/dev/foobar", O_RDWR|O_CLOEXEC); if (fd < 0) return log_error_errno(errno, "Failed to reboot: %m"); return fd; } Which is function that returns -errno on failure, as well as printing an error message, all in one line.
2014-11-28log: allow negative errno valuesLennart Poettering
sd_bus_error_set_errno() allows negative errors too, hence, be equally nice.
2014-11-28log: fix order of log_unit_struct() to match other logging callsLennart Poettering
Also, while we are at it, introduce some syntactic sugar for creating ERRNO= and MESSAGE= structured logging fields.
2014-11-27log: rearrange log function namingLennart Poettering
- Rename log_meta() → log_internal(), to follow naming scheme of most other log functions that are usually invoked through macros, but never directly. - Rename log_info_object() to log_object_info(), simply because the object should be before any other parameters, to follow OO-style programming style.
2014-11-27log: add an "error" parameter to all low-level logging calls and intrdouce ↵Lennart Poettering
log_error_errno() as log calls that take error numbers This change has two benefits: - The format string %m will now resolve to the specified error (or to errno if the specified error is 0. This allows getting rid of a ton of strerror() invocations, a function that is not thread-safe. - The specified error can be passed to the journal in the ERRNO= field. Now of course, we just need somebody to convert all cases of this: log_error("Something happened: %s", strerror(-r)); into thus: log_error_errno(-r, "Something happened: %m");
2014-11-26manager: log some fatal errors at emergency levelZbigniew Jędrzejewski-Szmek
This adds a new log_emergency() function, which is equivalent to log_error() for non-PID-1, and logs at the highest priority for PID 1. Some messages which occur before freezing are converted to use it.
2014-10-23shared/log: add log_trace as compile-time optional debuggingZbigniew Jędrzejewski-Szmek
Repetetive messages can be annoying when running with SYSTEMD_LOG_LEVEL=debug, but they are sometimes very useful when debugging problems. Add log_trace which is like log_debug but becomes a noop unless LOG_TRACE is defined during compilation. This makes it easy to enable very verbose logging for a subset of programs when compiling from source.
2014-08-11log: never ever log to syslog from PID 1, log to the journal againLennart Poettering
We don't support journal-less systems anyway, so let's avoid the confusion.
2014-02-17Pass log config from systemd to systemd-shutdownZbigniew Jędrzejewski-Szmek
If PID 1 debug logging is enabled, it is nice to keep those settings when switching to systemd-shutdown binary, independently of whether this was done through /proc/cmdline options, or through runtime manipulations.
2014-02-11journald: log provenience of signalsZbigniew Jędrzejewski-Szmek
2013-12-17_noreturn_ --> noreturn for C11 compatShawn Landden
also define noreturn w/o <stdnoreturn.h>
2013-12-10macro: log assertion at debug level in assert_return()Lennart Poettering
2013-10-20log: Fix previous commit to use correct levelColin Walters
2013-10-20log: avoid calling the logging functions for log levels above the current ↵Kay Sievers
maximum Messages with log levels above the current maximum log level will be dropped inside log_meta(). But to be able to call the function, all parameters for the function need to be provided. This can easily get expensive, if values need to be calculated or functions are used in parameters. Avoid all useless work by checking inside the macro, before we look at any parameters passed to the logging functions.
2013-10-16macro: clean up usage of gcc attributesLennart Poettering
Always use our own macros, and name all our own macros the same style.
2013-05-02Add __attribute__((const, pure, format)) in various placesZbigniew Jędrzejewski-Szmek
I'm assuming that it's fine if a _const_ or _pure_ function calls assert. It is assumed that the assert won't trigger, and even if it does, it can only trigger on the first call with a given set of parameters, and we don't care if the compiler moves the order of calls.
2013-04-25Add some extra __attribute__ ((format)) sCristian Rodríguez
2013-01-06journal: new logging macros to include UNIT=Zbigniew Jędrzejewski-Szmek
Adding UNIT= to log lines allows them to be shown in 'systemctl status' output, etc. A new set of macros and functions is added. This allows for less verbose notation than using log_struct() explicitly. The set of logging functions is expanded to take a pair of arguments (e.g. "UNIT=" and the RHS) which add an extra line to the structured log entry. This can be used to add macros which add a different identifier later on.
2012-12-05core: add catalog entry and MESSAGE_ID for overmountingZbigniew Jędrzejewski-Szmek
2012-10-16journal: don't export MESSAGE_ID() macroLennart Poettering
If it is exported it would need to be prefixed, but since we need it exclusively internally so far, simply move it to an internal header.
2012-09-03journal: suppress structured messages if they'd go to the consoleLennart Poettering
2012-09-03journal: generate structured journal messages for a number of eventsLennart Poettering
2012-07-26log: out-of-line __log_oom()Michal Schmidt
The callers' code gets smaller.
2012-07-26log: log_oom() must be a macroMichal Schmidt
2012-07-26log.h: new log_oom() -> int -ENOMEM, use itShawn Landden
also a number of minor fixups and bug fixes: spelling, oom errors that didn't print errors, not properly forwarding error codes, few more consistency issues, et cetera
2012-07-19use #pragma once instead of foo*foo #define guardsShawn Landden
#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported in other compilers. I've been using and maintaining (rebasing) this patch for a while now, as it annoyed me to see #ifndef fooblahfoo, etc all over the place, almost arrogant about the annoyance of having to define all these names to perform a commen but neccicary functionality, when a completely superior alternative exists. I havn't sent it till now, cause its kindof a style change, and it is bad voodoo to mess with style that has been established by more established editors. So feel free to lambast me as a crazy bafoon. v2 - preserve externally used headers
2012-05-22log: make sure generators never log into the journal to avoid activation ↵Lennart Poettering
deadlocks This makes all generators log to kmsg by default.
2012-04-12relicense to LGPLv2.1 (with exceptions)Lennart Poettering
We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
2012-04-10util: move all to shared/ and split external dependencies in separate ↵Kay Sievers
internal libraries Before: $ ldd /lib/systemd/systemd-timestamp linux-vdso.so.1 => (0x00007fffb05ff000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f90aac57000) libcap.so.2 => /lib64/libcap.so.2 (0x00007f90aaa53000) librt.so.1 => /lib64/librt.so.1 (0x00007f90aa84a000) libc.so.6 => /lib64/libc.so.6 (0x00007f90aa494000) /lib64/ld-linux-x86-64.so.2 (0x00007f90aae90000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f90aa290000) libattr.so.1 => /lib64/libattr.so.1 (0x00007f90aa08a000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f90a9e6e000) After: $ ldd systemd-timestamp linux-vdso.so.1 => (0x00007fff3cbff000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f5eaa1c3000) librt.so.1 => /lib64/librt.so.1 (0x00007f5ea9fbb000) libc.so.6 => /lib64/libc.so.6 (0x00007f5ea9c04000) /lib64/ld-linux-x86-64.so.2 (0x00007f5eaa3fc000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f5ea9a00000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5ea97e4000)