1 2014-10-20 LTTng modules 2.6.0-rc1
2 * Expose lttng-modules ABI version ioctl
3 * Fix: syscall list ioctl number conflict
4 * lttng-modules: fix build for non-x86
5 * Fix: syscall listing of session
6 * Print build warning when writeback probe is disabled
7 * Add atomic.h wrapper for before/after atomic
8 * Fix compilation on Ubuntu 14.10
9 * Fix: export name as text array in writeback
10 * Cleanup: remove unused trace_clock_read32()
11 * Use 3.17 ktime_get_mono_fast_ns() new API
12 * Check for stale version.h files
13 * Fix: compile lttng_statedump_process_ns on Ubuntu
14 * Reverse version check logic in lttng_statedump_process_ns
15 * Fix block_rq_complete TP on Ubuntu kernel
16 * Introduce macros to check Ubuntu kernel version
17 * Sync writeback tracepoints from mainline
18 * Fix: redefinition of DEFINE_WRITEBACK_EVENT
19 * Fix: hander negative get_syscall_nr return value
20 * Fix: statedump: close_on_exec flag backward compat
21 * Fix instrumentation of vmscan for older kernels
22 * Fix: older kernels (3.2.x) don't undefine TRACE_SYSTEM
23 * Fix: syscall listing: handle "enable all syscall"
24 * Fix: don't allow disabling syscalls when none are enabled
25 * Fix: syscall: fail disable all if all already disabled
26 * Fix: syscall filtering: NULL pointer deref
27 * Cleanup: list syscall without syscall_entry prefix
28 * Fix: syscall_list_show NULL pointer deref
29 * implement syscall mask getter
30 * Cleanup: lttng-abi.h coding style
31 * syscall listing: show syscall ID
32 * Allow events with same name to be enabled for each channel
33 * ABI: use enable a syscall ABI field name
34 * Implement syscall listing
35 * Fix: tracepoint list anonymous file name
36 * Fix: syscall filtering: disable all syscalls
37 * syscall tracing: input/output parameter handling for all arch
38 * lttng-get-syscall-inout.sh depends on bash
39 * Fix generate syscall header script: add missing escape char
40 * syscall instrumentation: handle copy_from_user return value
41 * Rename LTTng syscall instrumentation macros
42 * Rename LTTng instrumentation macros
43 * Extract input/output arguments from accept and connect syscalls
44 * syscall: extract pipe and pipe2 output args
45 * Remove sys_ prefix from syscall names
46 * System call inout/output arg processing
47 * Update syscall inout table
48 * Add syscall inout table
49 * Extract syscall exit ret value on x86 32/64
50 * Extract system call exit return value
51 * Syscall filtering: apply to syscall exit
52 * System call filtering
53 * asoc.h: fix build with v3.17 kernel
54 * Fix: lttng-modules teardown NULL pointer OOPS
55 * Fix: handle concurrent flush vs get_next_subbuf on metadata cache
56 * Modernize README using Markdown
57 * Fix: OOT lttng_logger tracepoint not visible with signed kernels
58 * Add cscope to gitignore
59 * Update kvm instrumentation: compile on 3.17-rc1
60 * Update statedump to 3.17 nsproxy locking
61 * Fix: noargs probes should calculate alignment and event length
62 * Update compaction instrumentation to 3.16 kernel
63 * Update vmscan instrumentation to 3.16 kernel
65 2014-07-16 (Take Your Poet to Work Day) LTTng modules 2.5.0
68 2014-06-27 LTTng modules 2.5.0-rc2
69 * Fix: statedump: check whether "files" is NULL, RCU semantic fix
70 * Fix: statedump handle oom case, handle errors
71 * Fix: correct typo in kernel version number
72 * Fix: blktrace instrumentation for backported branches
73 * Fix: statedump block devices OOPS
75 2014-05-28 (International Hamburger Day) LTTng modules 2.5.0-rc1
76 * Add TID field to some block_* events
77 * Fix: refuse overwrite mode buffers with less than two subbuffers
78 * Fix: lttng modules system call generation script
79 * Dump FD flags and mode on state dump
80 * Fix: incorrect rwbs field type in block_bio_queue
81 * Fix: blktrace instrumentation for v3.2.58+ stable branch
82 * Fix: pass proper args when writing commit counter
83 * Cleanup: lib ringbuffer: pagecpy has unsigned semantic
84 * Fix: allow racy tracepoint string input from kernel and userspace
85 * Statedump event for block devices
86 * Fix: update v4l2 instrumentation to 3.15 kernel
87 * Fix: ext4 update instrumentation to 3.15 kernel
88 * Fix: update block instrumentation to 3.15 kernel
89 * Fix: module instrumentation: update to 3.15 kernel
90 * Adapt to 3.15 tracepoint API
91 * Kernel 3.15 don't define map unmap for pipe
92 * Fix: add missing module version in v4l2 probe
93 * Add V4L2 instrumentation
94 * Fix: rcu instrumentation: add const qualifier to char pointers
95 * Fix: add missing module version information
96 * Use kernel 3.13 syscall tables for MIPS32
97 * Add MIPS32 syscalls extracted from a 3.13 kernel
98 * Fix: block instrumentation: < 3.14 don't have bi_iter
99 * Fix: update btrfs instrumentation to kernel 3.14
100 * Fix: update block layer instrumentation to kernel 3.14
101 * Fix: remove __exit annotation
102 * Fix file permissions for lttng-statedump-impl.c
105 2014-02-28 (Public Sleeping Day) LTTng modules 2.4.0
106 * Fix: load state dump even if work-around lookup fails
107 * Cleanup: fix comment
108 * Fix: correctly version kvm events to build against v3.0 kernel
109 * Add extraversion (e.g. -rc4) to lttng-tracer modinfo
111 2014-02-14 LTTng modules 2.4.0-rc4
112 * Fix: use after free in ring buffer clients
113 * Fix: Add statedump exit so module is not permanent
114 * Cleanup: move callback init to static initialization
115 * Fix: OOT lttng-statedump tracepoints not visible with signed kernels
117 2014-01-29 LTTng modules 2.4.0-rc3
118 * Fix: tracepoint event name mapping at unregister
119 * Fix: tracepoint name remapping
120 * Fix: enable event error path memory corruption
121 * Update kvm instrumentation to Linux 3.13
122 * Update sched instrumentation to Linux 3.13
123 * Fix: provide more precise error report for enable event
124 * Fix: quote event name in metadata
125 * Add version info to lttng-tracer.ko modinfo
127 2013-12-10 LTTng modules 2.4.0-rc2
128 * Fix: client_packet_header() uses wrong packet
129 * Cleanup: fix typo in ring buffer backend comment
130 * Fix: handle unknown event type parameter
131 * Fix: eliminate timestamp overlap between packets
132 * gcc blacklist: only apply when building with gcc
133 * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
135 2013-11-15 LTTng modules 2.4.0-rc1
136 * Update ext4 instrumentation to Linux 3.12
137 * Update RCU instrumentation to Linux 3.12
138 * Update btrfs instrumentation to 3.12 kernel
139 * Update vmscan instrumentation to Linux 3.12
140 * update: kmem instrumentation 3.12 kernel support
141 * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
142 * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
143 * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
144 * Add new tracepoint in KVM
145 * Blacklist kernels 3.10.13 and 3.11.2
146 * LTTng trace-clock: shrink kernel blacklist
147 * Metadata flush writes data from the cache
148 * Per-stream ioctl to get the current timestamp
149 * LTTng ringbuffer ABI calls for index generation
150 * Prepare LTTng override of ring buffer fops
151 * Blacklist Linux kernels 3.10+
153 2013-09-03 LTTng modules 2.3.0
154 * Fix: metadata stream should not reference session
155 * Fix: btrfs: support 3.11 Linux kernel
156 * statedump: remove KERN_DEBUG messages
157 * Fix: ext4: add missing tracepoints for 3.11 kernel
158 * Fix: ext4: Linux 3.11 support
159 * Fix: ext3: 3.11 Linux support
160 * Fix: statedump nsproxy 3.11 Linux support
162 2013-08-30 LTTng modules 2.3.0-rc2
163 * Fix: metadata lttng channel refcount
164 * README: lttng-modules incompatible with lttng 0.x patchset
166 2013-07-17 LTTng modules 2.3.0-rc1
167 * Fix: kvm x86 probes side-effect
168 * Fix: allow get/put subbuf in loop for metadata stream
169 * Add support for kvm x86 specific tracepoints
170 * Add mainline headers for kvm x86 tracepoints
171 * Remove old 3.0.4 x86-64 extracted syscall info
172 * Point the x86-64 overrides to newly extracted 3.10-rc7 files
173 * Add syscalls extracted files from a 3.10-rc7 kernel
174 * Improve documentation of the syscall extractor script
175 * Fix: double length of __dynamic_len array
176 * Fix printk instrumentation
177 * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
178 * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
179 * Fix: SWITCH_FLUSH new sub-buffer checks
180 * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
181 * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
182 * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
183 * Fix: handle writes of length 0
184 * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
185 * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
186 * print warning and return -EBUSY on double get_subbuf()
187 * Add header to fix compilation of syscalls-extractor on 3.9 kernel
188 * Fix: don't do 0 byte event reservation
189 * Document that payload size need to be greater than 0
190 * Fix build and load against linux-2.6.33.x
191 * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
192 * Metadata cache and multiple metadata channels
193 * fix block instrumentation probe signature mismatch for 3.9.x kernels
194 * fix: block instrumentation: NULL pointer dereference
195 * Update rcu instrumentation to 3.9.[0-4]
196 * Fix CPU hotplug section mismatches
197 * Add system calls definitions for powerpc-32
198 * Remove bashism in lttng-syscalls-generate-headers.sh
199 * Update ARM (32 bit) syscall tracepoints to 3.4
201 2013-05-09 LTTng modules 2.2.0-rc2
202 * Remove useless lttng_metadata probe
203 * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
204 * Fix: 3.9.0 block layer instrumentation build
205 * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
206 * Stop build if CONFIG_TRACEPOINTS is not set
207 * Add comments to endifs.
208 * Fix: remove ARM set_tls system call override
209 * Cleanup: arm sys_mmap whitespace
210 * Clean up using global_dirty_limit wrapper for writeback probe
212 2013-03-29 LTTng modules 2.2.0-rc1
214 * Fix: vmscan instrumentation build
215 * writeback instrumentation: remove duplicated structures
216 * block: update instrumentation to 3.9 rc kernel
217 * rcu: update to 3.9 rc kernel instrumentation
218 * workqueue instrumentation: remove duplicated structures
219 * Rename odd event names
220 * Introduce API to remap event names exposed by LTTng
221 * lttng-module: sched.h: Fix compilation on 3.9 kernel
222 * Fix Linux 3.8 btrfs probe warning
223 * Fix Linux 3.8 ext4 probe support
224 * Fix 3.8 kernel support: namespace lttng_is_signed_type()
225 * Fix: don't flush-final for offset 0 if reader is on sub-buffer
226 * instrumentation sched: add missing fork pid info
227 * Fix check in lttng_strlen_user_inatomic
228 * instrumentation: sync with Linux commit a1ce392
229 * Fix: statedump: missing locking, use lttng_iterate_fd
230 * Implement lttng_iterate_fd wrapper
231 * Instrumentation cleanup: kmem events should print hex pointers
232 * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
233 * Fix: statedump hang/too early completion due to logic error
234 * Fix: statedump hang due to incorrect wait/wakeup use
235 * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
236 * wrapper/perf.h: Fix kernel version condition
237 * Add new kernel probes instrumentation
238 * Update kernel probes to more detailed match to kernel versions
239 * Fix possible kernel build errors with linux-patches
240 * Add missing MIT license text to 3 files under this license
241 * Update sites using kernel version checking macro to new range
242 * Make upper bound of kernel version checking macro exclusive
243 * sock instrumentation: fix fields to get referenced values
244 * ext3 instrumentation: fix of assignment code conversion
245 * sched instrumentation: rename "pid" fields in sched_process_exec
246 * Remove remaining semicolons in TP_fast_assign blocks
247 * Fix compilation for 3.0 kernels that are named 2.6.40
248 * Fix compilation for 3.0 branch (>= 3.0.39)
249 * Add kernel version checking macro
250 * Remove semicolons in TP_fast_assign blocks
251 * Add ifdefs to net probe to support Linux 2.6.39
252 * Add kernel probes for supplementary subsystems
253 * Check if interrupt action name is not null in statedump
254 * Fix exec instrumentation: only for kernels 3.4.0 and higher
255 * Add TRACE_EVENT(sched_process_exec) to sched.h
256 * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
257 * Fix warning with 3.6.0 kernel
258 * ABI with support for compat 32/64 bits
259 * Perform calculation on bit size in 64-bit
260 * Use uint64_t for packet header content size and packet size
261 * Fix: compat layer only on supported architectures
262 * Fix ring buffer 32/64 bits compat
263 * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
264 * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
265 * Fix: statedump missing check for NULL namespace
267 2012-09-10 LTTng modules 2.1.0-rc1
268 * fix timestamps on architectures without CONFIG_KTIME_SCALAR
269 * Support for linux kernels 2.6.32 through 2.6.37
270 * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
271 * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
272 * Add env hostname information
273 * Fix: lttng_statedump_process_state for each PID NS has infinite loop
274 * lttng_statedump_process_state for each PID NS
275 * Support the hostname context
276 * Fix: statedump namespaced pid, tid and ppid
277 * Fix: statedump: disable vm maps enumeration
278 * Fix: ensure userspace accesses are done with _inatomic
279 * Fix: vppid context should test for current nsproxy
280 * Add MIPS system call support
281 * Change mode of lttng-syscalls-generate-headers.sh to 755
282 * cleanup: fix typo in syscall instrumentation header
283 * Cleanup: remove trailing whitespace in README
284 * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
285 * LTTng: probe-statedump: add #include <linux/sched.h>
286 * fix: signal_generate event should print utf8 for comm field
287 * Makes write operation a parameter for tp_memcpy macro
288 * Add coding style document
289 * Update instrumentation/events README file
290 * Add makefile target for preprocessor
291 * Fix: free_event_id check should compare unsigned int with -1U
292 * Use unsigned long type for events discarded counter
293 * Fix: update signal instrumentation for 3.4 kernel
294 * LTTng Modules ARM syscall instrumentation
295 * Fix: generate header missing echo -e for escape chars
296 * Fix: add missing uaccess.h include (for ARM)
297 * README: Document that CONFIG_MODULES is required
299 * Fix: document required and optional kernel config options in README
301 2012-03-29 LTTng modules 2.0.1
302 * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
304 2012-03-20 LTTng modules 2.0.0
305 * First STABLE version
308 2012-03-20 LTTng modules 2.0.0-rc4
309 * Update README and add version name place-holder
311 2012-03-16 LTTng modules 2.0.0-rc3
312 * Fix clock offset 32-bit multiplication overflow
313 * Fix : wrong assign of fd in state dump
314 * License cleanup, ifdef namespace cleanup
315 * Fix: ensure power of 2 check handles 64-bit size_t entirely
317 2012-03-02 LTTng modules 2.0.0-rc2
318 * Fix: dmesg printout should not print metadata warnings
319 * Fix: use transport name as channel name
320 * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
322 2012-02-20 LTTng modules 2.0.0-rc1
323 * Standardize version across toolchain
324 * statedump: Use old macro name for kernel 2.6.38
326 2012-02-16 LTTng modules 2.0-pre15
327 * Add timer instrumentation
328 * fix: need to undef mainline define
329 * fix: Include signal.h instead of irq.h for prototype match check
330 * Add signal instrumentation
332 2012-02-16 LTTng modules 2.0-pre14
333 * syscall tracing: sys_getcpu
334 * Add sys_clone x86 instrumentation
335 * statedump: fix include circular dep
336 * Implement state dump
338 2012-02-09 LTTng modules 2.0-pre13
340 * environment: write sysname, release, version, domain to metadata
341 * Allow open /proc/lttng for read & write
343 2012-02-02 LTTng modules 2.0-pre12
344 * Add x86 32/64 execve syscall instrumentation override
345 * Remove unused defines
347 * Use LTTNG_KERNEL_SYM_NAME_LEN
348 * Update version to 1.9.9
349 * Add missing double-quotes to clock uuid
350 * clock: read bootid as clock monotonic ID
353 * clock: output clock description in metadata
354 * Properly fix the timekeeping overflow detection
356 * rename lib-ring-buffer to lttng-lib-ring-buffer
358 * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
361 * Remove debugfs file (keep only proc file)
362 * Rename lttng-debugfs-abi files to lttng-abi
364 2011-12-13 LTTng modules 2.0-pre11
365 * Fix OOPS caused by reference of config pointer
366 * Gather detailed info from x86 64 32-bit compat syscall instrumentation
367 * lttng lib: ring buffer move null pointer check to open
368 * lttng lib: ring buffer remove duplicate null pointer
369 * lttng lib: ring buffer: remove stale null-pointer
370 * lttng wrapper: add missing include to kallsyms wrapper
371 * lttng: cleanup one-bit signed bitfields
373 * Update symbol name length max size to 256
374 * Fix last modifications to string_from_user operations
375 * Document that depmod needs to be executed by hand
376 * Fix strlen_user fault space reservation
377 * Fix tp_copy_string_from_user handling of faults
378 * Disable block layer tracing support for kernels < 2.6.38
379 * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
380 * Update trace clock warning to match the current development plan
381 * ringbuffer: make ring buffer printk less verbose
382 * Makefile: do not run depmod manually
384 2011-09-30 LTTng modules 2.0-pre10
385 * x86-32: override sys_mmap syscall instrumentation
388 2011-09-29 LTTng modules 2.0-pre9
389 * x86 32 syscalls: fix !CONFIG_UID16
390 * Use __string_from_user
391 * Add __string_from_user
392 * Rename "comm" context to "procname"
393 * Fetch "type" name field for mount syscall
394 * Create common override file for all architectures
395 * Shrink stack size usage
396 * Cleanup: remove unused lttng-compat-syscalls.c file
397 * Support detailed compat syscalls on x86_64
399 * Add disabled compat syscalls detail (work in progress)
400 * Add config compat support for detailed x86_32 syscalls
401 * Handle newer 3.1+ perf API
402 * Add dummy x86-32 override headers
403 * Bind x86-32 syscall headers
404 * Add x86-32 syscall headers
405 * Add check for KALLSYMS_ALL in syscall extraction script
406 * Automate string extraction for syscalls
407 * Automate syscall filename/pathname extraction
408 * Add exit to ring_buffer_frontend so module is unloadable
409 * Add sys_open filename (x86_64)
410 * Add missing memcpy callback
411 * copy_from_user and memset
412 * Add missing alignment after header write
413 * lib ring buffer: add frontend init as module_init
414 * lib ring buffer frontend: add missing lock initialization
415 * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
416 * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
417 * Create override for sys_mmap
418 * Rename syscalls -> syscall in LTTng ABI
419 * Use different event name for compat syscalls
420 * Allow trace syscall table override
421 * Add dummy override files
422 * syscall detail: add override capability
423 * Add pointer pretty-print heuristics
425 * Rename sys exit errno into ret
426 * Enable detailed syscalls only for native x86_64
427 * Use "unknown" for compat syscalls
428 * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
431 * Only enable detailed syscalls for x86_64 for now
432 * Merge unknown syscall method with extended detail method
433 * Add underscore prefix before event names
434 * Add syscalls pointers detailed syscall tracing
435 * Use perl for regexp
436 * Support generation of syscall probes for those with pointers
437 * Support detailed syscalls with 0 arguments
438 * detailed syscall tracing (work in progress)
439 * Expose /proc/lttng file
440 * Implement detailed syscall event probe
441 * Disable perf build for < 2.6.33 kernels
442 * Syscall detail mode: generate syscall table
443 * block instrumentation: write cmd as hex sequence
444 * lttng-events TRACE_EVENT generator cleanup
445 * block layer instrumentation: fix cmd field
446 * Remove 0 args syscalls for now from type-aware syscall cb generator
447 * Generate trace syscall table macros
448 * Put syscall tracing without arg types back in place
449 * Detailed system call tracing (TRACE_EVENT() generation for integer support)
450 * lttng events probes: don't clash with "ctx" variable name
451 * lib ring buffer must take private pointer copy before decrementing refcount
453 2011-08-16 LTTng modules 2.0-pre8
454 * Fix metadata buffer wait/wakeup
456 2011-08-12 LTTng modules 2.0-pre7
457 * Add missing module refcount to lttng_tracepoint_list_fops
458 * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2
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