ChangeLog

   1 2015-09-09 LTTng modules 2.6.3
   2         * Fix: use after free in channel release
   3         * Fix: build failure on 2.6.36
   4         * Fix: writeback instrumentation for 4.2 kernels
   5         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.18.10
   6         * Fix: kmem probe with Ubuntu 3.13 kernels
   7         * Fix: disable kvm probe if lapic.h isn't found
   8         * Fix: timer instrumentation for 4.2 kernels
   9         * Fix: ext4 instrumentation for 4.2 kernels
  10         * Fix: kvm instrumentation for 4.2 kernels
  11         * Fix: allow LTTng to be built within kernel tree
  12         * Fix: Building the event list fails on fragmented memory
  13         * Fix: use after free on metadata cache reallocation
  14
  15 2015-06-18 LTTng modules 2.6.2
  16         * Fix: version checks for kernel 4.0
  17         * Fix: Incorrect Ubuntu kernel patchlevel
  18         * Fix: Update kmem event for Ubuntu's 3.16 kernel
  19         * Fix: RHEL 7.1 block instrumentation
  20         * Fix: add RHEL version macros
  21         * Fix: add missing parenthesis in ubuntu version check
  22         * Fix: remove regmap instrumentation for kernels < 4.1
  23         * Fix: Update kmem event for recent Ubuntu kernel
  24         * Fix: missing statedump end event when block device listing available
  25         * Fix: don't generate incorrect macros for debian/ubuntu version check
  26
  27 2015-04-29 LTTng modules 2.6.1
  28         * Fix: regmap build against kernel 4.0 kernel headers
  29         * Fix: mmutrace warnings about redefined macros
  30         * Fix: add missing x86 mmutrace kernel header include
  31         * Fix: x86 mmutrace event extra field for kernels >= 3.11
  32         * Fix: remove execute flag from kvm.h file
  33         * Fix: build x86 kvm probes on kernels >= 4.1-rc1
  34         * Fix: compilation warnings on 4.1-rc1 kernel
  35         * Fix: compilation on 4.1-rc1 kernel, remove unused WB_WORK_REASON
  36         * Fix: 4.1-rc1 Linux build and regmap instrumentation
  37         * Fix: don't clash with older Debian kernel versions
  38         * Fix: update get_pfnblock_flags_mask wrapper for debian kernels
  39         * Fix: discover Debian API
  40         * Fix: Update README.md to match reality: kernels >= 2.6.36 are supported
  41         * Fix: add struct file_handle forward declaration
  42         * Fix: atomic.h wrapper for kernels < 2.6.37
  43         * Fix: disable x86 kvm instrumentation for kernels < 2.6.38
  44         * Fix: check that class and instance prototype match
  45         * Fix: lttng-events.h check function takes void
  46         * Update regmap instrumentation for Linux 3.19.4 and 4.0
  47         * Fix: kernels >= 2.6.33 put utsrelease.h in generated/
  48         * Fix: Include utsrelease.h in lttng-kernel-version.h
  49         * Fix: old kernels need module.h included before vermagic.h
  50         * Fix: version condition in makefile
  51         * Implement wrapper around get_pfnblock_flags_mask
  52         * Fix: Support 4.x kernel versions in Makefile
  53         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.14.36
  54         * Fix: update writeback instrumentation for kernel 4.0+
  55         * Fix: compaction mm_compaction_isolate_template update for Linux 4.0+
  56         * Fix: kmem instrumentation update for mm_page_alloc_extfrag kernel 3.19.2+
  57         * Fix: kmem instrumentation: mm_page_alloc extfrag change_ownership field
  58
  59 2015-01-26 LTTng modules 2.6.0
  60         * Fix: missing parenthesis in offset_align_floor
  61         * Fix: implement time.h wrapper for FD_ISSET
  62         * Fix: update sched instrumentation for 3.19+ kernels
  63         * Fix: update rcu instrumentation for 3.19+ kernels
  64         * Fix: update scsi instrumentation for 3.19+ kernels
  65         * Fix: update module instrumentation for 3.19+ kernels
  66         * Fix: Add f_dentry wrapper for 3.19+ kernels
  67         * Fix: introduce lttng_get_unused_fd() wrapper for 3.19 kernels
  68         * Fix: lttng_this_cpu_ptr wrapper for kernel 3.19+
  69         * Fix: Update btrfs instrumentation for 3.18 Linux kernel
  70         * Fix compile error on kernel 3.0.101 with CONFIG_PERF_EVENTS
  71         * Conditional compilation introduced by lttng-modules commit
  72
  73 2014-12-12 LTTng modules 2.6.0-rc2
  74         * Fix: compaction instrumentation update for 3.14.x stable kernels
  75         * Fix: context alignment not properly handled
  76         * Fix compilation on Linux kernel >= 3.18.0
  77         * Fix: build for architectures without HAVE_SYSCALL_TRACEPOINTS
  78
  79 2014-10-20 LTTng modules 2.6.0-rc1
  80         * Expose lttng-modules ABI version ioctl
  81         * Fix: syscall list ioctl number conflict
  82         * lttng-modules: fix build for non-x86
  83         * Fix: syscall listing of session
  84         * Print build warning when writeback probe is disabled
  85         * Add atomic.h wrapper for before/after atomic
  86         * Fix compilation on Ubuntu 14.10
  87         * Fix: export name as text array in writeback
  88         * Cleanup: remove unused trace_clock_read32()
  89         * Use 3.17 ktime_get_mono_fast_ns() new API
  90         * Check for stale version.h files
  91         * Fix: compile lttng_statedump_process_ns on Ubuntu
  92         * Reverse version check logic in lttng_statedump_process_ns
  93         * Fix block_rq_complete TP on Ubuntu kernel
  94         * Introduce macros to check Ubuntu kernel version
  95         * Sync writeback tracepoints from mainline
  96         * Fix: redefinition of DEFINE_WRITEBACK_EVENT
  97         * Fix: hander negative get_syscall_nr return value
  98         * Fix: statedump: close_on_exec flag backward compat
  99         * Fix instrumentation of vmscan for older kernels
 100         * Fix: older kernels (3.2.x) don't undefine TRACE_SYSTEM
 101         * Fix: syscall listing: handle "enable all syscall"
 102         * Fix: don't allow disabling syscalls when none are enabled
 103         * Fix: syscall: fail disable all if all already disabled
 104         * Fix: syscall filtering: NULL pointer deref
 105         * Cleanup: list syscall without syscall_entry prefix
 106         * Fix: syscall_list_show NULL pointer deref
 107         * implement syscall mask getter
 108         * Cleanup: lttng-abi.h coding style
 109         * syscall listing: show syscall ID
 110         * Allow events with same name to be enabled for each channel
 111         * ABI: use enable a syscall ABI field name
 112         * Implement syscall listing
 113         * Fix: tracepoint list anonymous file name
 114         * Fix: syscall filtering: disable all syscalls
 115         * syscall tracing: input/output parameter handling for all arch
 116         * lttng-get-syscall-inout.sh depends on bash
 117         * Fix generate syscall header script: add missing escape char
 118         * syscall instrumentation: handle copy_from_user return value
 119         * Rename LTTng syscall instrumentation macros
 120         * Rename LTTng instrumentation macros
 121         * Extract input/output arguments from accept and connect syscalls
 122         * syscall: extract pipe and pipe2 output args
 123         * Remove sys_ prefix from syscall names
 124         * System call inout/output arg processing
 125         * Update syscall inout table
 126         * Add syscall inout table
 127         * Extract syscall exit ret value on x86 32/64
 128         * Extract system call exit return value
 129         * Syscall filtering: apply to syscall exit
 130         * System call filtering
 131         * asoc.h: fix build with v3.17 kernel
 132         * Fix: lttng-modules teardown NULL pointer OOPS
 133         * Fix: handle concurrent flush vs get_next_subbuf on metadata cache
 134         * Modernize README using Markdown
 135         * Fix: OOT lttng_logger tracepoint not visible with signed kernels
 136         * Add cscope to gitignore
 137         * Update kvm instrumentation: compile on 3.17-rc1
 138         * Update statedump to 3.17 nsproxy locking
 139         * Fix: noargs probes should calculate alignment and event length
 140         * Update compaction instrumentation to 3.16 kernel
 141         * Update vmscan instrumentation to 3.16 kernel
 142
 143 2014-07-16 (Take Your Poet to Work Day) LTTng modules 2.5.0
 144         * (no change)
 145
 146 2014-06-27 LTTng modules 2.5.0-rc2
 147         * Fix: statedump: check whether "files" is NULL, RCU semantic fix
 148         * Fix: statedump handle oom case, handle errors
 149         * Fix: correct typo in kernel version number
 150         * Fix: blktrace instrumentation for backported branches
 151         * Fix: statedump block devices OOPS
 152
 153 2014-05-28 (International Hamburger Day) LTTng modules 2.5.0-rc1
 154         * Add TID field to some block_* events
 155         * Fix: refuse overwrite mode buffers with less than two subbuffers
 156         * Fix: lttng modules system call generation script
 157         * Dump FD flags and mode on state dump
 158         * Fix: incorrect rwbs field type in block_bio_queue
 159         * Fix: blktrace instrumentation for v3.2.58+ stable branch
 160         * Fix: pass proper args when writing commit counter
 161         * Cleanup: lib ringbuffer: pagecpy has unsigned semantic
 162         * Fix: allow racy tracepoint string input from kernel and userspace
 163         * Statedump event for block devices
 164         * Fix: update v4l2 instrumentation to 3.15 kernel
 165         * Fix: ext4 update instrumentation to 3.15 kernel
 166         * Fix: update block instrumentation to 3.15 kernel
 167         * Fix: module instrumentation: update to 3.15 kernel
 168         * Adapt to 3.15 tracepoint API
 169         * Kernel 3.15 don't define map unmap for pipe
 170         * Fix: add missing module version in v4l2 probe
 171         * Add V4L2 instrumentation
 172         * Fix: rcu instrumentation: add const qualifier to char pointers
 173         * Fix: add missing module version information
 174         * Use kernel 3.13 syscall tables for MIPS32
 175         * Add MIPS32 syscalls extracted from a 3.13 kernel
 176         * Fix: block instrumentation: < 3.14 don't have bi_iter
 177         * Fix: update btrfs instrumentation to kernel 3.14
 178         * Fix: update block layer instrumentation to kernel 3.14
 179         * Fix: remove __exit annotation
 180         * Fix file permissions for lttng-statedump-impl.c
 181         * LTTng logger ABI
 182
 183 2014-02-28 (Public Sleeping Day) LTTng modules 2.4.0
 184         * Fix: load state dump even if work-around lookup fails
 185         * Cleanup: fix comment
 186         * Fix: correctly version kvm events to build against v3.0 kernel
 187         * Add extraversion (e.g. -rc4) to lttng-tracer modinfo
 188
 189 2014-02-14 LTTng modules 2.4.0-rc4
 190         * Fix: use after free in ring buffer clients
 191         * Fix: Add statedump exit so module is not permanent
 192         * Cleanup: move callback init to static initialization
 193         * Fix: OOT lttng-statedump tracepoints not visible with signed kernels
 194
 195 2014-01-29 LTTng modules 2.4.0-rc3
 196         * Fix: tracepoint event name mapping at unregister
 197         * Fix: tracepoint name remapping
 198         * Fix: enable event error path memory corruption
 199         * Update kvm instrumentation to Linux 3.13
 200         * Update sched instrumentation to Linux 3.13
 201         * Fix: provide more precise error report for enable event
 202         * Fix: quote event name in metadata
 203         * Add version info to lttng-tracer.ko modinfo
 204
 205 2013-12-10 LTTng modules 2.4.0-rc2
 206         * Fix: client_packet_header() uses wrong packet
 207         * Cleanup: fix typo in ring buffer backend comment
 208         * Fix: handle unknown event type parameter
 209         * Fix: eliminate timestamp overlap between packets
 210         * gcc blacklist: only apply when building with gcc
 211         * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
 212
 213 2013-11-15 LTTng modules 2.4.0-rc1
 214         * Update ext4 instrumentation to Linux 3.12
 215         * Update RCU instrumentation to Linux 3.12
 216         * Update btrfs instrumentation to 3.12 kernel
 217         * Update vmscan instrumentation to Linux 3.12
 218         * update: kmem instrumentation 3.12 kernel support
 219         * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
 220         * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
 221         * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
 222         * Add new tracepoint in KVM
 223         * Blacklist kernels 3.10.13 and 3.11.2
 224         * LTTng trace-clock: shrink kernel blacklist
 225         * Metadata flush writes data from the cache
 226         * Per-stream ioctl to get the current timestamp
 227         * LTTng ringbuffer ABI calls for index generation
 228         * Prepare LTTng override of ring buffer fops
 229         * Blacklist Linux kernels 3.10+
 230
 231 2013-09-03 LTTng modules 2.3.0
 232         * Fix: metadata stream should not reference session
 233         * Fix: btrfs: support 3.11 Linux kernel
 234         * statedump: remove KERN_DEBUG messages
 235         * Fix: ext4: add missing tracepoints for 3.11 kernel
 236         * Fix: ext4: Linux 3.11 support
 237         * Fix: ext3: 3.11 Linux support
 238         * Fix: statedump nsproxy 3.11 Linux support
 239
 240 2013-08-30 LTTng modules 2.3.0-rc2
 241         * Fix: metadata lttng channel refcount
 242         * README: lttng-modules incompatible with lttng 0.x patchset
 243
 244 2013-07-17 LTTng modules 2.3.0-rc1
 245         * Fix: kvm x86 probes side-effect
 246         * Fix: allow get/put subbuf in loop for metadata stream
 247         * Add support for kvm x86 specific tracepoints
 248         * Add mainline headers for kvm x86 tracepoints
 249         * Remove old 3.0.4 x86-64 extracted syscall info
 250         * Point the x86-64 overrides to newly extracted 3.10-rc7 files
 251         * Add syscalls extracted files from a 3.10-rc7 kernel
 252         * Improve documentation of the syscall extractor script
 253         * Fix: double length of __dynamic_len array
 254         * Fix printk instrumentation
 255         * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
 256         * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
 257         * Fix: SWITCH_FLUSH new sub-buffer checks
 258         * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
 259         * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
 260         * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
 261         * Fix: handle writes of length 0
 262         * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
 263         * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
 264         * print warning and return -EBUSY on double get_subbuf()
 265         * Add header to fix compilation of syscalls-extractor on 3.9 kernel
 266         * Fix: don't do 0 byte event reservation
 267         * Document that payload size need to be greater than 0
 268         * Fix build and load against linux-2.6.33.x
 269         * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
 270         * Metadata cache and multiple metadata channels
 271         * fix block instrumentation probe signature mismatch for 3.9.x kernels
 272         * fix: block instrumentation: NULL pointer dereference
 273         * Update rcu instrumentation to 3.9.[0-4]
 274         * Fix CPU hotplug section mismatches
 275         * Add system calls definitions for powerpc-32
 276         * Remove bashism in lttng-syscalls-generate-headers.sh
 277         * Update ARM (32 bit) syscall tracepoints to 3.4
 278
 279 2013-05-09 LTTng modules 2.2.0-rc2
 280         * Remove useless lttng_metadata probe
 281         * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
 282         * Fix: 3.9.0 block layer instrumentation build
 283         * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
 284         * Stop build if CONFIG_TRACEPOINTS is not set
 285         * Add comments to endifs.
 286         * Fix: remove ARM set_tls system call override
 287         * Cleanup: arm sys_mmap whitespace
 288         * Clean up using global_dirty_limit wrapper for writeback probe
 289
 290 2013-03-29 LTTng modules 2.2.0-rc1
 291         * Update README
 292         * Fix: vmscan instrumentation build
 293         * writeback instrumentation: remove duplicated structures
 294         * block: update instrumentation to 3.9 rc kernel
 295         * rcu: update to 3.9 rc kernel instrumentation
 296         * workqueue instrumentation: remove duplicated structures
 297         * Rename odd event names
 298         * Introduce API to remap event names exposed by LTTng
 299         * lttng-module: sched.h: Fix compilation on 3.9 kernel
 300         * Fix Linux 3.8 btrfs probe warning
 301         * Fix Linux 3.8 ext4 probe support
 302         * Fix 3.8 kernel support: namespace lttng_is_signed_type()
 303         * Fix: don't flush-final for offset 0 if reader is on sub-buffer
 304         * instrumentation sched: add missing fork pid info
 305         * Fix check in lttng_strlen_user_inatomic
 306         * instrumentation: sync with Linux commit a1ce392
 307         * Fix: statedump: missing locking, use lttng_iterate_fd
 308         * Implement lttng_iterate_fd wrapper
 309         * Instrumentation cleanup: kmem events should print hex pointers
 310         * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
 311         * Fix: statedump hang/too early completion due to logic error
 312         * Fix: statedump hang due to incorrect wait/wakeup use
 313         * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
 314         * wrapper/perf.h: Fix kernel version condition
 315         * Add new kernel probes instrumentation
 316         * Update kernel probes to more detailed match to kernel versions
 317         * Fix possible kernel build errors with linux-patches
 318         * Add missing MIT license text to 3 files under this license
 319         * Update sites using kernel version checking macro to new range
 320         * Make upper bound of kernel version checking macro exclusive
 321         * sock instrumentation: fix fields to get referenced values
 322         * ext3 instrumentation: fix of assignment code conversion
 323         * sched instrumentation: rename "pid" fields in sched_process_exec
 324         * Remove remaining semicolons in TP_fast_assign blocks
 325         * Fix compilation for 3.0 kernels that are named 2.6.40
 326         * Fix compilation for 3.0 branch (>= 3.0.39)
 327         * Add kernel version checking macro
 328         * Remove semicolons in TP_fast_assign blocks
 329         * Add ifdefs to net probe to support Linux 2.6.39
 330         * Add kernel probes for supplementary subsystems
 331         * Check if interrupt action name is not null in statedump
 332         * Fix exec instrumentation: only for kernels 3.4.0 and higher
 333         * Add TRACE_EVENT(sched_process_exec) to sched.h
 334         * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
 335         * Fix warning with 3.6.0 kernel
 336         * ABI with support for compat 32/64 bits
 337         * Perform calculation on bit size in 64-bit
 338         * Use uint64_t for packet header content size and packet size
 339         * Fix: compat layer only on supported architectures
 340         * Fix ring buffer 32/64 bits compat
 341         * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
 342         * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
 343         * Fix: statedump missing check for NULL namespace
 344
 345 2012-09-10 LTTng modules 2.1.0-rc1
 346         * fix timestamps on architectures without CONFIG_KTIME_SCALAR
 347         * Support for linux kernels 2.6.32 through 2.6.37
 348         * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
 349         * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
 350         * Add env hostname information
 351         * Fix: lttng_statedump_process_state for each PID NS has infinite loop
 352         * lttng_statedump_process_state for each PID NS
 353         * Support the hostname context
 354         * Fix: statedump namespaced pid, tid and ppid
 355         * Fix: statedump: disable vm maps enumeration
 356         * Fix: ensure userspace accesses are done with _inatomic
 357         * Fix: vppid context should test for current nsproxy
 358         * Add MIPS system call support
 359         * Change mode of lttng-syscalls-generate-headers.sh to 755
 360         * cleanup: fix typo in syscall instrumentation header
 361         * Cleanup: remove trailing whitespace in README
 362         * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
 363         * LTTng: probe-statedump: add #include <linux/sched.h>
 364         * fix: signal_generate event should print utf8 for comm field
 365         * Makes write operation a parameter for tp_memcpy macro
 366         * Add coding style document
 367         * Update instrumentation/events README file
 368         * Add makefile target for preprocessor
 369         * Fix: free_event_id check should compare unsigned int with -1U
 370         * Use unsigned long type for events discarded counter
 371         * Fix: update signal instrumentation for 3.4 kernel
 372         * LTTng Modules ARM syscall instrumentation
 373         * Fix: generate header missing echo -e for escape chars
 374         * Fix: add missing uaccess.h include (for ARM)
 375         * README: Document that CONFIG_MODULES is required
 376         * Fix: README typo
 377         * Fix: document required and optional kernel config options in README
 378
 379 2012-03-29 LTTng modules 2.0.1
 380         * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
 381
 382 2012-03-20 LTTng modules 2.0.0
 383         * First STABLE version
 384         * Add version name
 385
 386 2012-03-20 LTTng modules 2.0.0-rc4
 387         * Update README and add version name place-holder
 388
 389 2012-03-16 LTTng modules 2.0.0-rc3
 390         * Fix clock offset 32-bit multiplication overflow
 391         * Fix : wrong assign of fd in state dump
 392         * License cleanup, ifdef namespace cleanup
 393         * Fix: ensure power of 2 check handles 64-bit size_t entirely
 394
 395 2012-03-02 LTTng modules 2.0.0-rc2
 396         * Fix: dmesg printout should not print metadata warnings
 397         * Fix: use transport name as channel name
 398         * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
 399
 400 2012-02-20 LTTng modules 2.0.0-rc1
 401         * Standardize version across toolchain
 402         * statedump: Use old macro name for kernel 2.6.38
 403
 404 2012-02-16 LTTng modules 2.0-pre15
 405         * Add timer instrumentation
 406         * fix: need to undef mainline define
 407         * fix: Include signal.h instead of irq.h for prototype match check
 408         * Add signal instrumentation
 409
 410 2012-02-16 LTTng modules 2.0-pre14
 411         * syscall tracing: sys_getcpu
 412         * Add sys_clone x86 instrumentation
 413         * statedump: fix include circular dep
 414         * Implement state dump
 415
 416 2012-02-09 LTTng modules 2.0-pre13
 417         * Update README
 418         * environment: write sysname, release, version, domain to metadata
 419         * Allow open /proc/lttng for read & write
 420
 421 2012-02-02 LTTng modules 2.0-pre12
 422         * Add x86 32/64 execve syscall instrumentation override
 423         * Remove unused defines
 424         * Add padding to ABI
 425         * Use LTTNG_KERNEL_SYM_NAME_LEN
 426         * Update version to 1.9.9
 427         * Add missing double-quotes to clock uuid
 428         * clock: read bootid as clock monotonic ID
 429         * Fix comment
 430         * Cleanup comment
 431         * clock: output clock description in metadata
 432         * Properly fix the timekeeping overflow detection
 433         * Fix init bug
 434         * rename lib-ring-buffer to lttng-lib-ring-buffer
 435         * Remove #warning
 436         * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
 437         * Update TODO
 438         * Update TODO
 439         * Remove debugfs file (keep only proc file)
 440         * Rename lttng-debugfs-abi files to lttng-abi
 441
 442 2011-12-13 LTTng modules 2.0-pre11
 443         * Fix OOPS caused by reference of config pointer
 444         * Gather detailed info from x86 64 32-bit compat syscall instrumentation
 445         * lttng lib: ring buffer move null pointer check to open
 446         * lttng lib: ring buffer remove duplicate null pointer
 447         * lttng lib: ring buffer: remove stale null-pointer
 448         * lttng wrapper: add missing include to kallsyms wrapper
 449         * lttng: cleanup one-bit signed bitfields
 450         * Add TODO file
 451         * Update symbol name length max size to 256
 452         * Fix last modifications to string_from_user operations
 453         * Document that depmod needs to be executed by hand
 454         * Fix strlen_user fault space reservation
 455         * Fix tp_copy_string_from_user handling of faults
 456         * Disable block layer tracing support for kernels < 2.6.38
 457         * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
 458         * Update trace clock warning to match the current development plan
 459         * ringbuffer: make ring buffer printk less verbose
 460         * Makefile: do not run depmod manually
 461
 462 2011-09-30 LTTng modules 2.0-pre10
 463         * x86-32: override sys_mmap syscall instrumentation
 464         * Fix cast warning
 465
 466 2011-09-29 LTTng modules 2.0-pre9
 467         * x86 32 syscalls: fix !CONFIG_UID16
 468         * Use __string_from_user
 469         * Add __string_from_user
 470         * Rename "comm" context to "procname"
 471         * Fetch "type" name field for mount syscall
 472         * Create common override file for all architectures
 473         * Shrink stack size usage
 474         * Cleanup: remove unused lttng-compat-syscalls.c file
 475         * Support detailed compat syscalls on x86_64
 476         * Fix syscall table
 477         * Add disabled compat syscalls detail (work in progress)
 478         * Add config compat support for detailed x86_32 syscalls
 479         * Handle newer 3.1+ perf API
 480         * Add dummy x86-32 override headers
 481         * Bind x86-32 syscall headers
 482         * Add x86-32 syscall headers
 483         * Add check for KALLSYMS_ALL in syscall extraction script
 484         * Automate string extraction for syscalls
 485         * Automate syscall filename/pathname extraction
 486         * Add exit to ring_buffer_frontend so module is unloadable
 487         * Add sys_open filename (x86_64)
 488         * Add missing memcpy callback
 489         * copy_from_user and memset
 490         * Add missing alignment after header write
 491         * lib ring buffer: add frontend init as module_init
 492         * lib ring buffer frontend: add missing lock initialization
 493         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
 494         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
 495         * Create override for sys_mmap
 496         * Rename syscalls -> syscall in LTTng ABI
 497         * Use different event name for compat syscalls
 498         * Allow trace syscall table override
 499         * Add dummy override files
 500         * syscall detail: add override capability
 501         * Add pointer pretty-print heuristics
 502         * Add __field_hex
 503         * Rename sys exit errno into ret
 504         * Enable detailed syscalls only for native x86_64
 505         * Use "unknown" for compat syscalls
 506         * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
 507         * Fix syscall exit
 508         * Fix sys exit
 509         * Only enable detailed syscalls for x86_64 for now
 510         * Merge unknown syscall method with extended detail method
 511         * Add underscore prefix before event names
 512         * Add syscalls pointers detailed syscall tracing
 513         * Use perl for regexp
 514         * Support generation of syscall probes for those with pointers
 515         * Support detailed syscalls with 0 arguments
 516         * detailed syscall tracing (work in progress)
 517         * Expose /proc/lttng file
 518         * Implement detailed syscall event probe
 519         * Disable perf build for < 2.6.33 kernels
 520         * Syscall detail mode: generate syscall table
 521         * block instrumentation: write cmd as hex sequence
 522         * lttng-events TRACE_EVENT generator cleanup
 523         * block layer instrumentation: fix cmd field
 524         * Remove 0 args syscalls for now from type-aware syscall cb generator
 525         * Generate trace syscall table macros
 526         * Put syscall tracing without arg types back in place
 527         * Detailed system call tracing (TRACE_EVENT() generation for integer support)
 528         * lttng events probes: don't clash with "ctx" variable name
 529         * lib ring buffer must take private pointer copy before decrementing refcount
 530
 531 2011-08-16 LTTng modules 2.0-pre8
 532         * Fix metadata buffer wait/wakeup
 533
 534 2011-08-12 LTTng modules 2.0-pre7
 535         * Add missing module refcount to lttng_tracepoint_list_fops
 536         * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2