ChangeLog

   1 2016-01-05 LTTng modules 2.7.1
   2         * Fix: Use MAX_RT_PRIO offset in sched_wakeup_template
   3         * Fix: update sched instrumentation for kernel 4.4.0
   4         * Fix: instrumentation: v4lv2 missing include
   5         * Fix: header size larger than 256 bytes
   6         * Fix: tracepoint listing misses last loaded probe
   7         * Fix: lttng trace-clock needs to disable preemption
   8
   9 2015-09-24 LTTng modules 2.7.0
  10         * Fix: writeback instrumentation update for 4.3 Linux kernel
  11         * Fix: update sched wakeup instrumentation for 4.3 kernel
  12         * Fix: lttng-test build failure for kernels < 3.0
  13
  14 2015-09-09 LTTng modules 2.7.0-rc2
  15         * Use 3.18 syscall instrumentation for MIPS32
  16         * Update the MIPS32 syscall instrumentation to 3.18
  17         * Fix: Move pipe override to the arch specific pointers_override.h
  18         * Implement lttng test module
  19         * Cleanup: remove logically dead code
  20         * Fix: filter validator use after free
  21         * Fix: use after free in channel release
  22         * Fix: non-enabler events should be disabled by default
  23         * Fix: build failure on 2.6.36
  24         * Cleanup: split bdi_dirty_ratelimit with ifdef into separate macros
  25         * Fix: writeback instrumentation for 4.2 kernels
  26         * Fix: kmem probe with Ubuntu 3.13 kernels
  27         * Fix: disable kvm probe if lapic.h isn't found
  28         * Fix: timer instrumentation for 4.2 kernels
  29         * Fix: ext4 instrumentation for 4.2 kernels
  30         * Fix: kvm instrumentation for 4.2 kernels
  31         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.18.10
  32         * Fix: allow LTTng to be built within kernel tree
  33
  34 2015-07-15 LTTng modules 2.7.0-rc1
  35         * Fix: Building the event list fails on fragmented memory
  36         * Fix: use after free on metadata cache reallocation
  37         * Fix: version checks for kernel 4.0
  38         * Fix: Incorrect Ubuntu kernel patchlevel
  39         * Fix: cpu-id context should use int type
  40         * Implement cpu-id context
  41         * Implement cpu_id context for filtering
  42         * Fix: context printk mismatch on error
  43         * Cleanup: misleading comment about deferrable timer
  44         * Fix: arm-32 build
  45         * Fix: Update kmem event for Ubuntu's 3.16 kernel
  46         * Fix: RHEL 7.1 block instrumentation
  47         * Fix: add RHEL version macros
  48         * Fix: add missing parenthesis in ubuntu version check
  49         * Fix: remove regmap instrumentation for kernels < 4.1
  50         * Fix: Update kmem event for recent Ubuntu kernel
  51         * Fix: missing statedump end event when block device listing available
  52         * Fix: don't generate incorrect macros for debian/ubuntu version check
  53         * Revert "Fix: build against Ubuntu kernels"
  54         * Fix: build against Ubuntu kernels
  55         * Add namespace info in sched_fork and statedump
  56         * Fix: ext4 instrumentation: flags parameter did not exist prior to 3.11
  57         * Fix: printk instrumentation: remove "condition" tracepoints
  58         * Fix: regmap build against kernel 4.0 kernel headers
  59         * Add mmu_valid_gen field to mmutrace events
  60         * Fix: add missing x86 mmutrace kernel header include
  61         * Fix: x86 mmutrace event extra field for kernels >= 3.11
  62         * Fix: remove execute flag from kvm.h file
  63         * Fix: build x86 kvm probes on kernels >= 4.1-rc1
  64         * Fix: compilation on 4.1-rc1 kernel, remove unused WB_WORK_REASON
  65         * Fix: 4.1-rc1 Linux build and regmap instrumentation
  66         * Fix: don't clash with older Debian kernel versions
  67         * Fix: update get_pfnblock_flags_mask wrapper for debian kernels
  68         * Fix: discover Debian API
  69         * Fix: Update README.md to match reality: kernels >= 2.6.36 are supported
  70         * Fix: atomic.h wrapper for kernels < 2.6.37
  71         * Fix: disable x86 kvm instrumentation for kernels < 2.6.38
  72         * Fix: add missing types.h include for older kernels
  73         * Fix: add hlist lttng wrappers
  74         * Fix: add struct file_handle forward declaration
  75         * Fix: string length calculation reversed user vs kernel args
  76         * Fix: use lttng_rcu_dereference within lttng-syscalls.c
  77         * Fix: add lttng rcu wrapper to allow tracing RCU
  78         * Fix: double-unlock of session mutex
  79         * Fix: check that class and instance prototype match
  80         * Fix: lttng-events.h check function takes void
  81         * Fix: regmap instrumentation for Linux 3.19.4 and 4.0
  82         * Fix: kernels >= 2.6.33 put utsrelease.h in generated/
  83         * Fix: Include utsrelease.h in lttng-kernel-version.h
  84         * Fix: ext4 ext4_da_write_pages instrumentation for kernels < 3.11.0
  85         * Fix: old kernels need module.h included before vermagic.h
  86         * Fix: net instrumentation for kernels 2.6.39 and below
  87         * Fix: version condition in makefile
  88         * Implement wrapper around get_pfnblock_flags_mask
  89         * Be more restrictive in provider name check
  90         * Fix: net instrumentation namespacing
  91         * Fix: compaction instrumentation namespacing
  92         * Fix: Support 4.x kernel versions in Makefile
  93         * Fix: remove stale TP_STRUCT_entry from kvm instrumentation
  94         * Fix: add missing module.h include to lttng-probe-user.c
  95         * Fix: use lttng hlist wrapper in wildcard and filter
  96         * Fix: namespace asoc and kmem instrumentation
  97         * Fix: update instrumentation after wildcard rebase
  98         * Fix: lttng_abi_syscall_list does not need to be exported
  99         * Migrate ARM, powerpc, MIPS syscall instrumentation to TP_FIELDS
 100         * Remove now unused syscalls.h from lttng-modules
 101         * Filter: start with enabler "disabled"
 102         * Fix coverity warning about sizeof(void **) != sizeof(void *)
 103         * Fix length type and text sequence base
 104         * Fix: TP_FIELDS: add missing headers
 105         * Migrate syscall instrumentation to TP_FIELDS
 106         * Migrate tracepoint instrumentation to TP_FIELDS
 107         * Implement filtering infrastructure
 108         * syscall wildcards: apply syscall filtering
 109         * Implement syscall wildcard support
 110         * Implement tracepoint wildcard support
 111         * Namespace all tracepoints
 112         * Implement list.h wrapper for hlist in older kernels
 113         * Implement listing of pid tracker content
 114         * Implement PID tracking
 115         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.14.36
 116         * Fix: update writeback instrumentation for kernel 4.0+
 117         * Fix: compaction mm_compaction_isolate_template update for Linux 4.0+
 118         * Fix: kmem instrumentation update for mm_page_alloc_extfrag kernel 3.19.2+
 119         * Fix: kmem instrumentation: mm_page_alloc extfrag change_ownership field
 120         * Fix: missing parenthesis in offset_align_floor
 121         * Fix: implement time.h wrapper for FD_ISSET
 122         * Fix: update sched instrumentation for 3.19+ kernels
 123         * Fix: update rcu instrumentation for 3.19+ kernels
 124         * Fix: update scsi instrumentation for 3.19+ kernels
 125         * Fix: update module instrumentation for 3.19+ kernels
 126         * Fix: Add f_dentry wrapper for 3.19+ kernels
 127         * Fix: introduce lttng_get_unused_fd() wrapper for 3.19 kernels
 128         * Fix: lttng_this_cpu_ptr wrapper for kernel 3.19+
 129         * Fix: Update btrfs instrumentation for 3.18 Linux kernel
 130         * Fix compile error on kernel 3.0.101 with CONFIG_PERF_EVENTS
 131         * Conditional compilation introduced by lttng-modules commit
 132         * Fix: compaction instrumentation update for 3.14.x stable kernels
 133         * Fix: context alignment not properly handled
 134         * Fix compilation on Linux kernel >= 3.18.0
 135         * Fix: build for architectures without HAVE_SYSCALL_TRACEPOINTS
 136
 137 2014-10-20 LTTng modules 2.6.0-rc1
 138         * Expose lttng-modules ABI version ioctl
 139         * Fix: syscall list ioctl number conflict
 140         * lttng-modules: fix build for non-x86
 141         * Fix: syscall listing of session
 142         * Print build warning when writeback probe is disabled
 143         * Add atomic.h wrapper for before/after atomic
 144         * Fix compilation on Ubuntu 14.10
 145         * Fix: export name as text array in writeback
 146         * Cleanup: remove unused trace_clock_read32()
 147         * Use 3.17 ktime_get_mono_fast_ns() new API
 148         * Check for stale version.h files
 149         * Fix: compile lttng_statedump_process_ns on Ubuntu
 150         * Reverse version check logic in lttng_statedump_process_ns
 151         * Fix block_rq_complete TP on Ubuntu kernel
 152         * Introduce macros to check Ubuntu kernel version
 153         * Sync writeback tracepoints from mainline
 154         * Fix: redefinition of DEFINE_WRITEBACK_EVENT
 155         * Fix: hander negative get_syscall_nr return value
 156         * Fix: statedump: close_on_exec flag backward compat
 157         * Fix instrumentation of vmscan for older kernels
 158         * Fix: older kernels (3.2.x) don't undefine TRACE_SYSTEM
 159         * Fix: syscall listing: handle "enable all syscall"
 160         * Fix: don't allow disabling syscalls when none are enabled
 161         * Fix: syscall: fail disable all if all already disabled
 162         * Fix: syscall filtering: NULL pointer deref
 163         * Cleanup: list syscall without syscall_entry prefix
 164         * Fix: syscall_list_show NULL pointer deref
 165         * implement syscall mask getter
 166         * Cleanup: lttng-abi.h coding style
 167         * syscall listing: show syscall ID
 168         * Allow events with same name to be enabled for each channel
 169         * ABI: use enable a syscall ABI field name
 170         * Implement syscall listing
 171         * Fix: tracepoint list anonymous file name
 172         * Fix: syscall filtering: disable all syscalls
 173         * syscall tracing: input/output parameter handling for all arch
 174         * lttng-get-syscall-inout.sh depends on bash
 175         * Fix generate syscall header script: add missing escape char
 176         * syscall instrumentation: handle copy_from_user return value
 177         * Rename LTTng syscall instrumentation macros
 178         * Rename LTTng instrumentation macros
 179         * Extract input/output arguments from accept and connect syscalls
 180         * syscall: extract pipe and pipe2 output args
 181         * Remove sys_ prefix from syscall names
 182         * System call inout/output arg processing
 183         * Update syscall inout table
 184         * Add syscall inout table
 185         * Extract syscall exit ret value on x86 32/64
 186         * Extract system call exit return value
 187         * Syscall filtering: apply to syscall exit
 188         * System call filtering
 189         * asoc.h: fix build with v3.17 kernel
 190         * Fix: lttng-modules teardown NULL pointer OOPS
 191         * Fix: handle concurrent flush vs get_next_subbuf on metadata cache
 192         * Modernize README using Markdown
 193         * Fix: OOT lttng_logger tracepoint not visible with signed kernels
 194         * Add cscope to gitignore
 195         * Update kvm instrumentation: compile on 3.17-rc1
 196         * Update statedump to 3.17 nsproxy locking
 197         * Fix: noargs probes should calculate alignment and event length
 198         * Update compaction instrumentation to 3.16 kernel
 199         * Update vmscan instrumentation to 3.16 kernel
 200
 201 2014-07-16 (Take Your Poet to Work Day) LTTng modules 2.5.0
 202         * (no change)
 203
 204 2014-06-27 LTTng modules 2.5.0-rc2
 205         * Fix: statedump: check whether "files" is NULL, RCU semantic fix
 206         * Fix: statedump handle oom case, handle errors
 207         * Fix: correct typo in kernel version number
 208         * Fix: blktrace instrumentation for backported branches
 209         * Fix: statedump block devices OOPS
 210
 211 2014-05-28 (International Hamburger Day) LTTng modules 2.5.0-rc1
 212         * Add TID field to some block_* events
 213         * Fix: refuse overwrite mode buffers with less than two subbuffers
 214         * Fix: lttng modules system call generation script
 215         * Dump FD flags and mode on state dump
 216         * Fix: incorrect rwbs field type in block_bio_queue
 217         * Fix: blktrace instrumentation for v3.2.58+ stable branch
 218         * Fix: pass proper args when writing commit counter
 219         * Cleanup: lib ringbuffer: pagecpy has unsigned semantic
 220         * Fix: allow racy tracepoint string input from kernel and userspace
 221         * Statedump event for block devices
 222         * Fix: update v4l2 instrumentation to 3.15 kernel
 223         * Fix: ext4 update instrumentation to 3.15 kernel
 224         * Fix: update block instrumentation to 3.15 kernel
 225         * Fix: module instrumentation: update to 3.15 kernel
 226         * Adapt to 3.15 tracepoint API
 227         * Kernel 3.15 don't define map unmap for pipe
 228         * Fix: add missing module version in v4l2 probe
 229         * Add V4L2 instrumentation
 230         * Fix: rcu instrumentation: add const qualifier to char pointers
 231         * Fix: add missing module version information
 232         * Use kernel 3.13 syscall tables for MIPS32
 233         * Add MIPS32 syscalls extracted from a 3.13 kernel
 234         * Fix: block instrumentation: < 3.14 don't have bi_iter
 235         * Fix: update btrfs instrumentation to kernel 3.14
 236         * Fix: update block layer instrumentation to kernel 3.14
 237         * Fix: remove __exit annotation
 238         * Fix file permissions for lttng-statedump-impl.c
 239         * LTTng logger ABI
 240
 241 2014-02-28 (Public Sleeping Day) LTTng modules 2.4.0
 242         * Fix: load state dump even if work-around lookup fails
 243         * Cleanup: fix comment
 244         * Fix: correctly version kvm events to build against v3.0 kernel
 245         * Add extraversion (e.g. -rc4) to lttng-tracer modinfo
 246
 247 2014-02-14 LTTng modules 2.4.0-rc4
 248         * Fix: use after free in ring buffer clients
 249         * Fix: Add statedump exit so module is not permanent
 250         * Cleanup: move callback init to static initialization
 251         * Fix: OOT lttng-statedump tracepoints not visible with signed kernels
 252
 253 2014-01-29 LTTng modules 2.4.0-rc3
 254         * Fix: tracepoint event name mapping at unregister
 255         * Fix: tracepoint name remapping
 256         * Fix: enable event error path memory corruption
 257         * Update kvm instrumentation to Linux 3.13
 258         * Update sched instrumentation to Linux 3.13
 259         * Fix: provide more precise error report for enable event
 260         * Fix: quote event name in metadata
 261         * Add version info to lttng-tracer.ko modinfo
 262
 263 2013-12-10 LTTng modules 2.4.0-rc2
 264         * Fix: client_packet_header() uses wrong packet
 265         * Cleanup: fix typo in ring buffer backend comment
 266         * Fix: handle unknown event type parameter
 267         * Fix: eliminate timestamp overlap between packets
 268         * gcc blacklist: only apply when building with gcc
 269         * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
 270
 271 2013-11-15 LTTng modules 2.4.0-rc1
 272         * Update ext4 instrumentation to Linux 3.12
 273         * Update RCU instrumentation to Linux 3.12
 274         * Update btrfs instrumentation to 3.12 kernel
 275         * Update vmscan instrumentation to Linux 3.12
 276         * update: kmem instrumentation 3.12 kernel support
 277         * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
 278         * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
 279         * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
 280         * Add new tracepoint in KVM
 281         * Blacklist kernels 3.10.13 and 3.11.2
 282         * LTTng trace-clock: shrink kernel blacklist
 283         * Metadata flush writes data from the cache
 284         * Per-stream ioctl to get the current timestamp
 285         * LTTng ringbuffer ABI calls for index generation
 286         * Prepare LTTng override of ring buffer fops
 287         * Blacklist Linux kernels 3.10+
 288
 289 2013-09-03 LTTng modules 2.3.0
 290         * Fix: metadata stream should not reference session
 291         * Fix: btrfs: support 3.11 Linux kernel
 292         * statedump: remove KERN_DEBUG messages
 293         * Fix: ext4: add missing tracepoints for 3.11 kernel
 294         * Fix: ext4: Linux 3.11 support
 295         * Fix: ext3: 3.11 Linux support
 296         * Fix: statedump nsproxy 3.11 Linux support
 297
 298 2013-08-30 LTTng modules 2.3.0-rc2
 299         * Fix: metadata lttng channel refcount
 300         * README: lttng-modules incompatible with lttng 0.x patchset
 301
 302 2013-07-17 LTTng modules 2.3.0-rc1
 303         * Fix: kvm x86 probes side-effect
 304         * Fix: allow get/put subbuf in loop for metadata stream
 305         * Add support for kvm x86 specific tracepoints
 306         * Add mainline headers for kvm x86 tracepoints
 307         * Remove old 3.0.4 x86-64 extracted syscall info
 308         * Point the x86-64 overrides to newly extracted 3.10-rc7 files
 309         * Add syscalls extracted files from a 3.10-rc7 kernel
 310         * Improve documentation of the syscall extractor script
 311         * Fix: double length of __dynamic_len array
 312         * Fix printk instrumentation
 313         * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
 314         * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
 315         * Fix: SWITCH_FLUSH new sub-buffer checks
 316         * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
 317         * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
 318         * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
 319         * Fix: handle writes of length 0
 320         * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
 321         * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
 322         * print warning and return -EBUSY on double get_subbuf()
 323         * Add header to fix compilation of syscalls-extractor on 3.9 kernel
 324         * Fix: don't do 0 byte event reservation
 325         * Document that payload size need to be greater than 0
 326         * Fix build and load against linux-2.6.33.x
 327         * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
 328         * Metadata cache and multiple metadata channels
 329         * fix block instrumentation probe signature mismatch for 3.9.x kernels
 330         * fix: block instrumentation: NULL pointer dereference
 331         * Update rcu instrumentation to 3.9.[0-4]
 332         * Fix CPU hotplug section mismatches
 333         * Add system calls definitions for powerpc-32
 334         * Remove bashism in lttng-syscalls-generate-headers.sh
 335         * Update ARM (32 bit) syscall tracepoints to 3.4
 336
 337 2013-05-09 LTTng modules 2.2.0-rc2
 338         * Remove useless lttng_metadata probe
 339         * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
 340         * Fix: 3.9.0 block layer instrumentation build
 341         * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
 342         * Stop build if CONFIG_TRACEPOINTS is not set
 343         * Add comments to endifs.
 344         * Fix: remove ARM set_tls system call override
 345         * Cleanup: arm sys_mmap whitespace
 346         * Clean up using global_dirty_limit wrapper for writeback probe
 347
 348 2013-03-29 LTTng modules 2.2.0-rc1
 349         * Update README
 350         * Fix: vmscan instrumentation build
 351         * writeback instrumentation: remove duplicated structures
 352         * block: update instrumentation to 3.9 rc kernel
 353         * rcu: update to 3.9 rc kernel instrumentation
 354         * workqueue instrumentation: remove duplicated structures
 355         * Rename odd event names
 356         * Introduce API to remap event names exposed by LTTng
 357         * lttng-module: sched.h: Fix compilation on 3.9 kernel
 358         * Fix Linux 3.8 btrfs probe warning
 359         * Fix Linux 3.8 ext4 probe support
 360         * Fix 3.8 kernel support: namespace lttng_is_signed_type()
 361         * Fix: don't flush-final for offset 0 if reader is on sub-buffer
 362         * instrumentation sched: add missing fork pid info
 363         * Fix check in lttng_strlen_user_inatomic
 364         * instrumentation: sync with Linux commit a1ce392
 365         * Fix: statedump: missing locking, use lttng_iterate_fd
 366         * Implement lttng_iterate_fd wrapper
 367         * Instrumentation cleanup: kmem events should print hex pointers
 368         * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
 369         * Fix: statedump hang/too early completion due to logic error
 370         * Fix: statedump hang due to incorrect wait/wakeup use
 371         * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
 372         * wrapper/perf.h: Fix kernel version condition
 373         * Add new kernel probes instrumentation
 374         * Update kernel probes to more detailed match to kernel versions
 375         * Fix possible kernel build errors with linux-patches
 376         * Add missing MIT license text to 3 files under this license
 377         * Update sites using kernel version checking macro to new range
 378         * Make upper bound of kernel version checking macro exclusive
 379         * sock instrumentation: fix fields to get referenced values
 380         * ext3 instrumentation: fix of assignment code conversion
 381         * sched instrumentation: rename "pid" fields in sched_process_exec
 382         * Remove remaining semicolons in TP_fast_assign blocks
 383         * Fix compilation for 3.0 kernels that are named 2.6.40
 384         * Fix compilation for 3.0 branch (>= 3.0.39)
 385         * Add kernel version checking macro
 386         * Remove semicolons in TP_fast_assign blocks
 387         * Add ifdefs to net probe to support Linux 2.6.39
 388         * Add kernel probes for supplementary subsystems
 389         * Check if interrupt action name is not null in statedump
 390         * Fix exec instrumentation: only for kernels 3.4.0 and higher
 391         * Add TRACE_EVENT(sched_process_exec) to sched.h
 392         * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
 393         * Fix warning with 3.6.0 kernel
 394         * ABI with support for compat 32/64 bits
 395         * Perform calculation on bit size in 64-bit
 396         * Use uint64_t for packet header content size and packet size
 397         * Fix: compat layer only on supported architectures
 398         * Fix ring buffer 32/64 bits compat
 399         * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
 400         * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
 401         * Fix: statedump missing check for NULL namespace
 402
 403 2012-09-10 LTTng modules 2.1.0-rc1
 404         * fix timestamps on architectures without CONFIG_KTIME_SCALAR
 405         * Support for linux kernels 2.6.32 through 2.6.37
 406         * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
 407         * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
 408         * Add env hostname information
 409         * Fix: lttng_statedump_process_state for each PID NS has infinite loop
 410         * lttng_statedump_process_state for each PID NS
 411         * Support the hostname context
 412         * Fix: statedump namespaced pid, tid and ppid
 413         * Fix: statedump: disable vm maps enumeration
 414         * Fix: ensure userspace accesses are done with _inatomic
 415         * Fix: vppid context should test for current nsproxy
 416         * Add MIPS system call support
 417         * Change mode of lttng-syscalls-generate-headers.sh to 755
 418         * cleanup: fix typo in syscall instrumentation header
 419         * Cleanup: remove trailing whitespace in README
 420         * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
 421         * LTTng: probe-statedump: add #include <linux/sched.h>
 422         * fix: signal_generate event should print utf8 for comm field
 423         * Makes write operation a parameter for tp_memcpy macro
 424         * Add coding style document
 425         * Update instrumentation/events README file
 426         * Add makefile target for preprocessor
 427         * Fix: free_event_id check should compare unsigned int with -1U
 428         * Use unsigned long type for events discarded counter
 429         * Fix: update signal instrumentation for 3.4 kernel
 430         * LTTng Modules ARM syscall instrumentation
 431         * Fix: generate header missing echo -e for escape chars
 432         * Fix: add missing uaccess.h include (for ARM)
 433         * README: Document that CONFIG_MODULES is required
 434         * Fix: README typo
 435         * Fix: document required and optional kernel config options in README
 436
 437 2012-03-29 LTTng modules 2.0.1
 438         * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
 439
 440 2012-03-20 LTTng modules 2.0.0
 441         * First STABLE version
 442         * Add version name
 443
 444 2012-03-20 LTTng modules 2.0.0-rc4
 445         * Update README and add version name place-holder
 446
 447 2012-03-16 LTTng modules 2.0.0-rc3
 448         * Fix clock offset 32-bit multiplication overflow
 449         * Fix : wrong assign of fd in state dump
 450         * License cleanup, ifdef namespace cleanup
 451         * Fix: ensure power of 2 check handles 64-bit size_t entirely
 452
 453 2012-03-02 LTTng modules 2.0.0-rc2
 454         * Fix: dmesg printout should not print metadata warnings
 455         * Fix: use transport name as channel name
 456         * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
 457
 458 2012-02-20 LTTng modules 2.0.0-rc1
 459         * Standardize version across toolchain
 460         * statedump: Use old macro name for kernel 2.6.38
 461
 462 2012-02-16 LTTng modules 2.0-pre15
 463         * Add timer instrumentation
 464         * fix: need to undef mainline define
 465         * fix: Include signal.h instead of irq.h for prototype match check
 466         * Add signal instrumentation
 467
 468 2012-02-16 LTTng modules 2.0-pre14
 469         * syscall tracing: sys_getcpu
 470         * Add sys_clone x86 instrumentation
 471         * statedump: fix include circular dep
 472         * Implement state dump
 473
 474 2012-02-09 LTTng modules 2.0-pre13
 475         * Update README
 476         * environment: write sysname, release, version, domain to metadata
 477         * Allow open /proc/lttng for read & write
 478
 479 2012-02-02 LTTng modules 2.0-pre12
 480         * Add x86 32/64 execve syscall instrumentation override
 481         * Remove unused defines
 482         * Add padding to ABI
 483         * Use LTTNG_KERNEL_SYM_NAME_LEN
 484         * Update version to 1.9.9
 485         * Add missing double-quotes to clock uuid
 486         * clock: read bootid as clock monotonic ID
 487         * Fix comment
 488         * Cleanup comment
 489         * clock: output clock description in metadata
 490         * Properly fix the timekeeping overflow detection
 491         * Fix init bug
 492         * rename lib-ring-buffer to lttng-lib-ring-buffer
 493         * Remove #warning
 494         * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
 495         * Update TODO
 496         * Update TODO
 497         * Remove debugfs file (keep only proc file)
 498         * Rename lttng-debugfs-abi files to lttng-abi
 499
 500 2011-12-13 LTTng modules 2.0-pre11
 501         * Fix OOPS caused by reference of config pointer
 502         * Gather detailed info from x86 64 32-bit compat syscall instrumentation
 503         * lttng lib: ring buffer move null pointer check to open
 504         * lttng lib: ring buffer remove duplicate null pointer
 505         * lttng lib: ring buffer: remove stale null-pointer
 506         * lttng wrapper: add missing include to kallsyms wrapper
 507         * lttng: cleanup one-bit signed bitfields
 508         * Add TODO file
 509         * Update symbol name length max size to 256
 510         * Fix last modifications to string_from_user operations
 511         * Document that depmod needs to be executed by hand
 512         * Fix strlen_user fault space reservation
 513         * Fix tp_copy_string_from_user handling of faults
 514         * Disable block layer tracing support for kernels < 2.6.38
 515         * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
 516         * Update trace clock warning to match the current development plan
 517         * ringbuffer: make ring buffer printk less verbose
 518         * Makefile: do not run depmod manually
 519
 520 2011-09-30 LTTng modules 2.0-pre10
 521         * x86-32: override sys_mmap syscall instrumentation
 522         * Fix cast warning
 523
 524 2011-09-29 LTTng modules 2.0-pre9
 525         * x86 32 syscalls: fix !CONFIG_UID16
 526         * Use __string_from_user
 527         * Add __string_from_user
 528         * Rename "comm" context to "procname"
 529         * Fetch "type" name field for mount syscall
 530         * Create common override file for all architectures
 531         * Shrink stack size usage
 532         * Cleanup: remove unused lttng-compat-syscalls.c file
 533         * Support detailed compat syscalls on x86_64
 534         * Fix syscall table
 535         * Add disabled compat syscalls detail (work in progress)
 536         * Add config compat support for detailed x86_32 syscalls
 537         * Handle newer 3.1+ perf API
 538         * Add dummy x86-32 override headers
 539         * Bind x86-32 syscall headers
 540         * Add x86-32 syscall headers
 541         * Add check for KALLSYMS_ALL in syscall extraction script
 542         * Automate string extraction for syscalls
 543         * Automate syscall filename/pathname extraction
 544         * Add exit to ring_buffer_frontend so module is unloadable
 545         * Add sys_open filename (x86_64)
 546         * Add missing memcpy callback
 547         * copy_from_user and memset
 548         * Add missing alignment after header write
 549         * lib ring buffer: add frontend init as module_init
 550         * lib ring buffer frontend: add missing lock initialization
 551         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
 552         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
 553         * Create override for sys_mmap
 554         * Rename syscalls -> syscall in LTTng ABI
 555         * Use different event name for compat syscalls
 556         * Allow trace syscall table override
 557         * Add dummy override files
 558         * syscall detail: add override capability
 559         * Add pointer pretty-print heuristics
 560         * Add __field_hex
 561         * Rename sys exit errno into ret
 562         * Enable detailed syscalls only for native x86_64
 563         * Use "unknown" for compat syscalls
 564         * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
 565         * Fix syscall exit
 566         * Fix sys exit
 567         * Only enable detailed syscalls for x86_64 for now
 568         * Merge unknown syscall method with extended detail method
 569         * Add underscore prefix before event names
 570         * Add syscalls pointers detailed syscall tracing
 571         * Use perl for regexp
 572         * Support generation of syscall probes for those with pointers
 573         * Support detailed syscalls with 0 arguments
 574         * detailed syscall tracing (work in progress)
 575         * Expose /proc/lttng file
 576         * Implement detailed syscall event probe
 577         * Disable perf build for < 2.6.33 kernels
 578         * Syscall detail mode: generate syscall table
 579         * block instrumentation: write cmd as hex sequence
 580         * lttng-events TRACE_EVENT generator cleanup
 581         * block layer instrumentation: fix cmd field
 582         * Remove 0 args syscalls for now from type-aware syscall cb generator
 583         * Generate trace syscall table macros
 584         * Put syscall tracing without arg types back in place
 585         * Detailed system call tracing (TRACE_EVENT() generation for integer support)
 586         * lttng events probes: don't clash with "ctx" variable name
 587         * lib ring buffer must take private pointer copy before decrementing refcount
 588
 589 2011-08-16 LTTng modules 2.0-pre8
 590         * Fix metadata buffer wait/wakeup
 591
 592 2011-08-12 LTTng modules 2.0-pre7
 593         * Add missing module refcount to lttng_tracepoint_list_fops
 594         * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2