[ANNOUNCE] libtracefs 1.1.0

From: Steven Rostedt <rostedt@goodmis.org>
To: LKML <linux-kernel@vger.kernel.org>,
	"linux-trace-devel@vger.kernel.org" 
	<linux-trace-devel@vger.kernel.org>,
	Linux-trace Users <linux-trace-users@vger.kernel.org>
Cc: Zamir SUN <sztsian@gmail.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Jiri Olsa <jolsa@redhat.com>,
	zsun@redhat.com, Vitaly Chikunov <vt@altlinux.org>,
	Tzvetomir Stoyanov <tstoyanov@vmware.com>,
	Yordan Karadzhov <ykaradzhov@vmware.com>,
	Ben Hutchings <ben@decadent.org.uk>,
	Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
	Tony Jones <tonyj@suse.de>, John Kacur <jkacur@redhat.com>,
	Clark Williams <williams@redhat.com>, Al Stone <ahs3@debian.org>,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Jes Sorensen <jes.sorensen@gmail.com>
Subject: [ANNOUNCE] libtracefs 1.1.0
Date: Sat, 10 Apr 2021 09:40:46 -0400	[thread overview]
Message-ID: <20210410094046.0a23f960@oasis.local.home> (raw)

I'm pleased to announce the new version of libtracefs library has been
released:

  libtracefs: 1.1.0

 https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/snapshot/libtracefs-1.1.0.tar.gz
 https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/

Changes since 1.0.2:

 - Depends on libtraceevent 1.2.0 or later

 - New APIs for opening and reading ftrace files
    tracefs_instance_file_read_number()
    tracefs_instance_file_open()

 - New APIs for enable / disable tracing
    tracefs_trace_is_on()
    tracefs_trace_on()
    tracefs_trace_off()
    tracefs_trace_on_get_fd()
    tracefs_trace_on_fd()
    tracefs_trace_off_fd()

 - New APIs for trace options
    tracefs_option_set()
    tracefs_option_clear()
    tracefs_option_is_set()
    tracefs_options_get_supported()
    tracefs_option_is_supported()
    tracefs_options_get_enabled()
    tracefs_option_is_enabled()
    tracefs_option_enable()
    tracefs_option_diasble()
    tracefs_option_name()
    tracefs_option_id()
    tarcefs_option_mask_is_set()

 - New APIs for getting existing trace instance
    tracefs_instance_alloc()
    tracefs_instance_get_trace_dir()

 - New APIs to set the filtering of functions
    tracefs_function_filter()
    tracefs_function_notrace()

 - New APIs to writing strings into the tracing buffer
    tracefs_print_init()
    tracefs_printf()
    tracefs_vprintf()
    tracefs_print_close()

 - New APIs to writing binary data into the tracing buffer
    tracefs_binary_init()
    tracefs_binary_write()
    tracefs_binary_close()

 - tracefs_iterate_raw_events() now calls the callbacks in
   time stamp sorted order (instead of calling all events in
   a CPU buffer, then the next CPU buffer). Also fixed record->cpu
   to match the CPU that's also passed to the callback, instead
   of always being zero.

 - Loading of events with tracefs_local_events(),
   tracefs_local_event_system() and tracefs_fill_local_events()
   now pull in kallsyms, saved_cmdlines, and printk_format mappings
   into the tep handler.

 - New API to reload the saved_cmdlines
    tracefs_load_cmdlines()

 - Warnings now can be overwritten with tracefs_warning() and no
   longer the too generic name warning()

 - All files opened in the library now are done so with O_CLOEXEC

 - Cleaner building and installation.

-- Steve