Version 2.5.0
[deliverable/lttng-modules.git] / ChangeLog
CommitLineData
789fd1d0
MD
12014-07-16 (Take Your Poet to Work Day) LTTng modules 2.5.0
2 * (no change)
3
37cbcd7c
MD
42014-06-27 LTTng modules 2.5.0-rc2
5 * Fix: statedump: check whether "files" is NULL, RCU semantic fix
6 * Fix: statedump handle oom case, handle errors
7 * Fix: correct typo in kernel version number
8 * Fix: blktrace instrumentation for backported branches
9 * Fix: statedump block devices OOPS
10
0d979364
MD
112014-05-28 (International Hamburger Day) LTTng modules 2.5.0-rc1
12 * Add TID field to some block_* events
13 * Fix: refuse overwrite mode buffers with less than two subbuffers
14 * Fix: lttng modules system call generation script
15 * Dump FD flags and mode on state dump
16 * Fix: incorrect rwbs field type in block_bio_queue
17 * Fix: blktrace instrumentation for v3.2.58+ stable branch
18 * Fix: pass proper args when writing commit counter
19 * Cleanup: lib ringbuffer: pagecpy has unsigned semantic
20 * Fix: allow racy tracepoint string input from kernel and userspace
21 * Statedump event for block devices
22 * Fix: update v4l2 instrumentation to 3.15 kernel
23 * Fix: ext4 update instrumentation to 3.15 kernel
24 * Fix: update block instrumentation to 3.15 kernel
25 * Fix: module instrumentation: update to 3.15 kernel
26 * Adapt to 3.15 tracepoint API
27 * Kernel 3.15 don't define map unmap for pipe
28 * Fix: add missing module version in v4l2 probe
29 * Add V4L2 instrumentation
30 * Fix: rcu instrumentation: add const qualifier to char pointers
31 * Fix: add missing module version information
32 * Use kernel 3.13 syscall tables for MIPS32
33 * Add MIPS32 syscalls extracted from a 3.13 kernel
34 * Fix: block instrumentation: < 3.14 don't have bi_iter
35 * Fix: update btrfs instrumentation to kernel 3.14
36 * Fix: update block layer instrumentation to kernel 3.14
37 * Fix: remove __exit annotation
38 * Fix file permissions for lttng-statedump-impl.c
39 * LTTng logger ABI
40
fb2c3779
MD
412014-02-28 (Public Sleeping Day) LTTng modules 2.4.0
42 * Fix: load state dump even if work-around lookup fails
43 * Cleanup: fix comment
44 * Fix: correctly version kvm events to build against v3.0 kernel
45 * Add extraversion (e.g. -rc4) to lttng-tracer modinfo
46
4be86211
MD
472014-02-14 LTTng modules 2.4.0-rc4
48 * Fix: use after free in ring buffer clients
49 * Fix: Add statedump exit so module is not permanent
50 * Cleanup: move callback init to static initialization
51 * Fix: OOT lttng-statedump tracepoints not visible with signed kernels
52
00808267
MD
532014-01-29 LTTng modules 2.4.0-rc3
54 * Fix: tracepoint event name mapping at unregister
55 * Fix: tracepoint name remapping
56 * Fix: enable event error path memory corruption
57 * Update kvm instrumentation to Linux 3.13
58 * Update sched instrumentation to Linux 3.13
59 * Fix: provide more precise error report for enable event
60 * Fix: quote event name in metadata
61 * Add version info to lttng-tracer.ko modinfo
62
0aa12233
MD
632013-12-10 LTTng modules 2.4.0-rc2
64 * Fix: client_packet_header() uses wrong packet
65 * Cleanup: fix typo in ring buffer backend comment
66 * Fix: handle unknown event type parameter
67 * Fix: eliminate timestamp overlap between packets
68 * gcc blacklist: only apply when building with gcc
69 * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
70
223ca7c5
MD
712013-11-15 LTTng modules 2.4.0-rc1
72 * Update ext4 instrumentation to Linux 3.12
73 * Update RCU instrumentation to Linux 3.12
74 * Update btrfs instrumentation to 3.12 kernel
75 * Update vmscan instrumentation to Linux 3.12
76 * update: kmem instrumentation 3.12 kernel support
77 * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
78 * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
79 * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
80 * Add new tracepoint in KVM
81 * Blacklist kernels 3.10.13 and 3.11.2
82 * LTTng trace-clock: shrink kernel blacklist
83 * Metadata flush writes data from the cache
84 * Per-stream ioctl to get the current timestamp
85 * LTTng ringbuffer ABI calls for index generation
86 * Prepare LTTng override of ring buffer fops
87 * Blacklist Linux kernels 3.10+
88
78c8710b
MD
892013-09-03 LTTng modules 2.3.0
90 * Fix: metadata stream should not reference session
91 * Fix: btrfs: support 3.11 Linux kernel
92 * statedump: remove KERN_DEBUG messages
93 * Fix: ext4: add missing tracepoints for 3.11 kernel
94 * Fix: ext4: Linux 3.11 support
95 * Fix: ext3: 3.11 Linux support
96 * Fix: statedump nsproxy 3.11 Linux support
97
cf7ae3e6
MD
982013-08-30 LTTng modules 2.3.0-rc2
99 * Fix: metadata lttng channel refcount
100 * README: lttng-modules incompatible with lttng 0.x patchset
101
54207845
MD
1022013-07-17 LTTng modules 2.3.0-rc1
103 * Fix: kvm x86 probes side-effect
104 * Fix: allow get/put subbuf in loop for metadata stream
105 * Add support for kvm x86 specific tracepoints
106 * Add mainline headers for kvm x86 tracepoints
107 * Remove old 3.0.4 x86-64 extracted syscall info
108 * Point the x86-64 overrides to newly extracted 3.10-rc7 files
109 * Add syscalls extracted files from a 3.10-rc7 kernel
110 * Improve documentation of the syscall extractor script
111 * Fix: double length of __dynamic_len array
112 * Fix printk instrumentation
113 * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
114 * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
115 * Fix: SWITCH_FLUSH new sub-buffer checks
116 * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
117 * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
118 * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
119 * Fix: handle writes of length 0
120 * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
121 * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
122 * print warning and return -EBUSY on double get_subbuf()
123 * Add header to fix compilation of syscalls-extractor on 3.9 kernel
124 * Fix: don't do 0 byte event reservation
125 * Document that payload size need to be greater than 0
126 * Fix build and load against linux-2.6.33.x
127 * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
128 * Metadata cache and multiple metadata channels
129 * fix block instrumentation probe signature mismatch for 3.9.x kernels
130 * fix: block instrumentation: NULL pointer dereference
131 * Update rcu instrumentation to 3.9.[0-4]
132 * Fix CPU hotplug section mismatches
133 * Add system calls definitions for powerpc-32
134 * Remove bashism in lttng-syscalls-generate-headers.sh
135 * Update ARM (32 bit) syscall tracepoints to 3.4
136
88c5f61b
MD
1372013-05-09 LTTng modules 2.2.0-rc2
138 * Remove useless lttng_metadata probe
139 * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
140 * Fix: 3.9.0 block layer instrumentation build
141 * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
142 * Stop build if CONFIG_TRACEPOINTS is not set
143 * Add comments to endifs.
144 * Fix: remove ARM set_tls system call override
145 * Cleanup: arm sys_mmap whitespace
146 * Clean up using global_dirty_limit wrapper for writeback probe
147
78062c79
MD
1482013-03-29 LTTng modules 2.2.0-rc1
149 * Update README
150 * Fix: vmscan instrumentation build
151 * writeback instrumentation: remove duplicated structures
152 * block: update instrumentation to 3.9 rc kernel
153 * rcu: update to 3.9 rc kernel instrumentation
154 * workqueue instrumentation: remove duplicated structures
155 * Rename odd event names
156 * Introduce API to remap event names exposed by LTTng
157 * lttng-module: sched.h: Fix compilation on 3.9 kernel
158 * Fix Linux 3.8 btrfs probe warning
159 * Fix Linux 3.8 ext4 probe support
160 * Fix 3.8 kernel support: namespace lttng_is_signed_type()
161 * Fix: don't flush-final for offset 0 if reader is on sub-buffer
162 * instrumentation sched: add missing fork pid info
163 * Fix check in lttng_strlen_user_inatomic
164 * instrumentation: sync with Linux commit a1ce392
165 * Fix: statedump: missing locking, use lttng_iterate_fd
166 * Implement lttng_iterate_fd wrapper
167 * Instrumentation cleanup: kmem events should print hex pointers
168 * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
169 * Fix: statedump hang/too early completion due to logic error
170 * Fix: statedump hang due to incorrect wait/wakeup use
171 * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
172 * wrapper/perf.h: Fix kernel version condition
173 * Add new kernel probes instrumentation
174 * Update kernel probes to more detailed match to kernel versions
175 * Fix possible kernel build errors with linux-patches
176 * Add missing MIT license text to 3 files under this license
177 * Update sites using kernel version checking macro to new range
178 * Make upper bound of kernel version checking macro exclusive
179 * sock instrumentation: fix fields to get referenced values
180 * ext3 instrumentation: fix of assignment code conversion
181 * sched instrumentation: rename "pid" fields in sched_process_exec
182 * Remove remaining semicolons in TP_fast_assign blocks
183 * Fix compilation for 3.0 kernels that are named 2.6.40
184 * Fix compilation for 3.0 branch (>= 3.0.39)
185 * Add kernel version checking macro
186 * Remove semicolons in TP_fast_assign blocks
187 * Add ifdefs to net probe to support Linux 2.6.39
188 * Add kernel probes for supplementary subsystems
189 * Check if interrupt action name is not null in statedump
190 * Fix exec instrumentation: only for kernels 3.4.0 and higher
191 * Add TRACE_EVENT(sched_process_exec) to sched.h
192 * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
193 * Fix warning with 3.6.0 kernel
194 * ABI with support for compat 32/64 bits
195 * Perform calculation on bit size in 64-bit
196 * Use uint64_t for packet header content size and packet size
197 * Fix: compat layer only on supported architectures
198 * Fix ring buffer 32/64 bits compat
199 * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
200 * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
201 * Fix: statedump missing check for NULL namespace
202
7cb1d0ee
MD
2032012-09-10 LTTng modules 2.1.0-rc1
204 * fix timestamps on architectures without CONFIG_KTIME_SCALAR
205 * Support for linux kernels 2.6.32 through 2.6.37
206 * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
207 * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
208 * Add env hostname information
209 * Fix: lttng_statedump_process_state for each PID NS has infinite loop
210 * lttng_statedump_process_state for each PID NS
211 * Support the hostname context
212 * Fix: statedump namespaced pid, tid and ppid
213 * Fix: statedump: disable vm maps enumeration
214 * Fix: ensure userspace accesses are done with _inatomic
215 * Fix: vppid context should test for current nsproxy
216 * Add MIPS system call support
217 * Change mode of lttng-syscalls-generate-headers.sh to 755
218 * cleanup: fix typo in syscall instrumentation header
219 * Cleanup: remove trailing whitespace in README
220 * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
221 * LTTng: probe-statedump: add #include <linux/sched.h>
222 * fix: signal_generate event should print utf8 for comm field
223 * Makes write operation a parameter for tp_memcpy macro
224 * Add coding style document
225 * Update instrumentation/events README file
226 * Add makefile target for preprocessor
227 * Fix: free_event_id check should compare unsigned int with -1U
228 * Use unsigned long type for events discarded counter
229 * Fix: update signal instrumentation for 3.4 kernel
230 * LTTng Modules ARM syscall instrumentation
231 * Fix: generate header missing echo -e for escape chars
232 * Fix: add missing uaccess.h include (for ARM)
233 * README: Document that CONFIG_MODULES is required
234 * Fix: README typo
235 * Fix: document required and optional kernel config options in README
236
d2a9270f
MD
2372012-03-29 LTTng modules 2.0.1
238 * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
239
2402012-03-20 LTTng modules 2.0.0
730e5783
MD
241 * First STABLE version
242 * Add version name
243
63be4822
MD
2442012-03-20 LTTng modules 2.0.0-rc4
245 * Update README and add version name place-holder
246
1bca821c
MD
2472012-03-16 LTTng modules 2.0.0-rc3
248 * Fix clock offset 32-bit multiplication overflow
249 * Fix : wrong assign of fd in state dump
250 * License cleanup, ifdef namespace cleanup
251 * Fix: ensure power of 2 check handles 64-bit size_t entirely
252
4d1704b6
MD
2532012-03-02 LTTng modules 2.0.0-rc2
254 * Fix: dmesg printout should not print metadata warnings
255 * Fix: use transport name as channel name
256 * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
257
f66cbcc8
MD
2582012-02-20 LTTng modules 2.0.0-rc1
259 * Standardize version across toolchain
260 * statedump: Use old macro name for kernel 2.6.38
261
2646f1db
MD
2622012-02-16 LTTng modules 2.0-pre15
263 * Add timer instrumentation
264 * fix: need to undef mainline define
265 * fix: Include signal.h instead of irq.h for prototype match check
266 * Add signal instrumentation
267
3e8b3fb8
MD
2682012-02-16 LTTng modules 2.0-pre14
269 * syscall tracing: sys_getcpu
270 * Add sys_clone x86 instrumentation
271 * statedump: fix include circular dep
272 * Implement state dump
273
ed5a7a8f
MD
2742012-02-09 LTTng modules 2.0-pre13
275 * Update README
276 * environment: write sysname, release, version, domain to metadata
277 * Allow open /proc/lttng for read & write
278
497051bd
MD
2792012-02-02 LTTng modules 2.0-pre12
280 * Add x86 32/64 execve syscall instrumentation override
281 * Remove unused defines
282 * Add padding to ABI
283 * Use LTTNG_KERNEL_SYM_NAME_LEN
284 * Update version to 1.9.9
285 * Add missing double-quotes to clock uuid
286 * clock: read bootid as clock monotonic ID
287 * Fix comment
288 * Cleanup comment
289 * clock: output clock description in metadata
290 * Properly fix the timekeeping overflow detection
291 * Fix init bug
292 * rename lib-ring-buffer to lttng-lib-ring-buffer
293 * Remove #warning
294 * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
295 * Update TODO
296 * Update TODO
297 * Remove debugfs file (keep only proc file)
298 * Rename lttng-debugfs-abi files to lttng-abi
299
4d3e89e3
MD
3002011-12-13 LTTng modules 2.0-pre11
301 * Fix OOPS caused by reference of config pointer
302 * Gather detailed info from x86 64 32-bit compat syscall instrumentation
303 * lttng lib: ring buffer move null pointer check to open
304 * lttng lib: ring buffer remove duplicate null pointer
305 * lttng lib: ring buffer: remove stale null-pointer
306 * lttng wrapper: add missing include to kallsyms wrapper
307 * lttng: cleanup one-bit signed bitfields
308 * Add TODO file
309 * Update symbol name length max size to 256
310 * Fix last modifications to string_from_user operations
311 * Document that depmod needs to be executed by hand
312 * Fix strlen_user fault space reservation
313 * Fix tp_copy_string_from_user handling of faults
314 * Disable block layer tracing support for kernels < 2.6.38
315 * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
316 * Update trace clock warning to match the current development plan
317 * ringbuffer: make ring buffer printk less verbose
318 * Makefile: do not run depmod manually
319
e2222c2e
MD
3202011-09-30 LTTng modules 2.0-pre10
321 * x86-32: override sys_mmap syscall instrumentation
322 * Fix cast warning
323
bfb508ed
MD
3242011-09-29 LTTng modules 2.0-pre9
325 * x86 32 syscalls: fix !CONFIG_UID16
326 * Use __string_from_user
327 * Add __string_from_user
328 * Rename "comm" context to "procname"
329 * Fetch "type" name field for mount syscall
330 * Create common override file for all architectures
331 * Shrink stack size usage
332 * Cleanup: remove unused lttng-compat-syscalls.c file
333 * Support detailed compat syscalls on x86_64
334 * Fix syscall table
335 * Add disabled compat syscalls detail (work in progress)
336 * Add config compat support for detailed x86_32 syscalls
337 * Handle newer 3.1+ perf API
338 * Add dummy x86-32 override headers
339 * Bind x86-32 syscall headers
340 * Add x86-32 syscall headers
341 * Add check for KALLSYMS_ALL in syscall extraction script
342 * Automate string extraction for syscalls
343 * Automate syscall filename/pathname extraction
344 * Add exit to ring_buffer_frontend so module is unloadable
345 * Add sys_open filename (x86_64)
346 * Add missing memcpy callback
347 * copy_from_user and memset
348 * Add missing alignment after header write
349 * lib ring buffer: add frontend init as module_init
350 * lib ring buffer frontend: add missing lock initialization
351 * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
352 * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
353 * Create override for sys_mmap
354 * Rename syscalls -> syscall in LTTng ABI
355 * Use different event name for compat syscalls
356 * Allow trace syscall table override
357 * Add dummy override files
358 * syscall detail: add override capability
359 * Add pointer pretty-print heuristics
360 * Add __field_hex
361 * Rename sys exit errno into ret
362 * Enable detailed syscalls only for native x86_64
363 * Use "unknown" for compat syscalls
364 * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
365 * Fix syscall exit
366 * Fix sys exit
367 * Only enable detailed syscalls for x86_64 for now
368 * Merge unknown syscall method with extended detail method
369 * Add underscore prefix before event names
370 * Add syscalls pointers detailed syscall tracing
371 * Use perl for regexp
372 * Support generation of syscall probes for those with pointers
373 * Support detailed syscalls with 0 arguments
374 * detailed syscall tracing (work in progress)
375 * Expose /proc/lttng file
376 * Implement detailed syscall event probe
377 * Disable perf build for < 2.6.33 kernels
378 * Syscall detail mode: generate syscall table
379 * block instrumentation: write cmd as hex sequence
380 * lttng-events TRACE_EVENT generator cleanup
381 * block layer instrumentation: fix cmd field
382 * Remove 0 args syscalls for now from type-aware syscall cb generator
383 * Generate trace syscall table macros
384 * Put syscall tracing without arg types back in place
385 * Detailed system call tracing (TRACE_EVENT() generation for integer support)
386 * lttng events probes: don't clash with "ctx" variable name
387 * lib ring buffer must take private pointer copy before decrementing refcount
388
47655e60
MD
3892011-08-16 LTTng modules 2.0-pre8
390 * Fix metadata buffer wait/wakeup
391
99a93317
MD
3922011-08-12 LTTng modules 2.0-pre7
393 * Add missing module refcount to lttng_tracepoint_list_fops
394 * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2
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