ChangeLog

   1 2013-11-15 LTTng modules 2.4.0-rc1
   2         * Update ext4 instrumentation to Linux 3.12
   3         * Update RCU instrumentation to Linux 3.12
   4         * Update btrfs instrumentation to 3.12 kernel
   5         * Update vmscan instrumentation to Linux 3.12
   6         * update: kmem instrumentation 3.12 kernel support
   7         * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
   8         * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
   9         * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
  10         * Add new tracepoint in KVM
  11         * Blacklist kernels 3.10.13 and 3.11.2
  12         * LTTng trace-clock: shrink kernel blacklist
  13         * Metadata flush writes data from the cache
  14         * Per-stream ioctl to get the current timestamp
  15         * LTTng ringbuffer ABI calls for index generation
  16         * Prepare LTTng override of ring buffer fops
  17         * Blacklist Linux kernels 3.10+
  18
  19 2013-09-03 LTTng modules 2.3.0
  20         * Fix: metadata stream should not reference session
  21         * Fix: btrfs: support 3.11 Linux kernel
  22         * statedump: remove KERN_DEBUG messages
  23         * Fix: ext4: add missing tracepoints for 3.11 kernel
  24         * Fix: ext4: Linux 3.11 support
  25         * Fix: ext3: 3.11 Linux support
  26         * Fix: statedump nsproxy 3.11 Linux support
  27
  28 2013-08-30 LTTng modules 2.3.0-rc2
  29         * Fix: metadata lttng channel refcount
  30         * README: lttng-modules incompatible with lttng 0.x patchset
  31
  32 2013-07-17 LTTng modules 2.3.0-rc1
  33         * Fix: kvm x86 probes side-effect
  34         * Fix: allow get/put subbuf in loop for metadata stream
  35         * Add support for kvm x86 specific tracepoints
  36         * Add mainline headers for kvm x86 tracepoints
  37         * Remove old 3.0.4 x86-64 extracted syscall info
  38         * Point the x86-64 overrides to newly extracted 3.10-rc7 files
  39         * Add syscalls extracted files from a 3.10-rc7 kernel
  40         * Improve documentation of the syscall extractor script
  41         * Fix: double length of __dynamic_len array
  42         * Fix printk instrumentation
  43         * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
  44         * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
  45         * Fix: SWITCH_FLUSH new sub-buffer checks
  46         * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
  47         * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
  48         * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
  49         * Fix: handle writes of length 0
  50         * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
  51         * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
  52         * print warning and return -EBUSY on double get_subbuf()
  53         * Add header to fix compilation of syscalls-extractor on 3.9 kernel
  54         * Fix: don't do 0 byte event reservation
  55         * Document that payload size need to be greater than 0
  56         * Fix build and load against linux-2.6.33.x
  57         * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
  58         * Metadata cache and multiple metadata channels
  59         * fix block instrumentation probe signature mismatch for 3.9.x kernels
  60         * fix: block instrumentation: NULL pointer dereference
  61         * Update rcu instrumentation to 3.9.[0-4]
  62         * Fix CPU hotplug section mismatches
  63         * Add system calls definitions for powerpc-32
  64         * Remove bashism in lttng-syscalls-generate-headers.sh
  65         * Update ARM (32 bit) syscall tracepoints to 3.4
  66
  67 2013-05-09 LTTng modules 2.2.0-rc2
  68         * Remove useless lttng_metadata probe
  69         * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
  70         * Fix: 3.9.0 block layer instrumentation build
  71         * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
  72         * Stop build if CONFIG_TRACEPOINTS is not set
  73         * Add comments to endifs.
  74         * Fix: remove ARM set_tls system call override
  75         * Cleanup: arm sys_mmap whitespace
  76         * Clean up using global_dirty_limit wrapper for writeback probe
  77
  78 2013-03-29 LTTng modules 2.2.0-rc1
  79         * Update README
  80         * Fix: vmscan instrumentation build
  81         * writeback instrumentation: remove duplicated structures
  82         * block: update instrumentation to 3.9 rc kernel
  83         * rcu: update to 3.9 rc kernel instrumentation
  84         * workqueue instrumentation: remove duplicated structures
  85         * Rename odd event names
  86         * Introduce API to remap event names exposed by LTTng
  87         * lttng-module: sched.h: Fix compilation on 3.9 kernel
  88         * Fix Linux 3.8 btrfs probe warning
  89         * Fix Linux 3.8 ext4 probe support
  90         * Fix 3.8 kernel support: namespace lttng_is_signed_type()
  91         * Fix: don't flush-final for offset 0 if reader is on sub-buffer
  92         * instrumentation sched: add missing fork pid info
  93         * Fix check in lttng_strlen_user_inatomic
  94         * instrumentation: sync with Linux commit a1ce392
  95         * Fix: statedump: missing locking, use lttng_iterate_fd
  96         * Implement lttng_iterate_fd wrapper
  97         * Instrumentation cleanup: kmem events should print hex pointers
  98         * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
  99         * Fix: statedump hang/too early completion due to logic error
 100         * Fix: statedump hang due to incorrect wait/wakeup use
 101         * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
 102         * wrapper/perf.h: Fix kernel version condition
 103         * Add new kernel probes instrumentation
 104         * Update kernel probes to more detailed match to kernel versions
 105         * Fix possible kernel build errors with linux-patches
 106         * Add missing MIT license text to 3 files under this license
 107         * Update sites using kernel version checking macro to new range
 108         * Make upper bound of kernel version checking macro exclusive
 109         * sock instrumentation: fix fields to get referenced values
 110         * ext3 instrumentation: fix of assignment code conversion
 111         * sched instrumentation: rename "pid" fields in sched_process_exec
 112         * Remove remaining semicolons in TP_fast_assign blocks
 113         * Fix compilation for 3.0 kernels that are named 2.6.40
 114         * Fix compilation for 3.0 branch (>= 3.0.39)
 115         * Add kernel version checking macro
 116         * Remove semicolons in TP_fast_assign blocks
 117         * Add ifdefs to net probe to support Linux 2.6.39
 118         * Add kernel probes for supplementary subsystems
 119         * Check if interrupt action name is not null in statedump
 120         * Fix exec instrumentation: only for kernels 3.4.0 and higher
 121         * Add TRACE_EVENT(sched_process_exec) to sched.h
 122         * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
 123         * Fix warning with 3.6.0 kernel
 124         * ABI with support for compat 32/64 bits
 125         * Perform calculation on bit size in 64-bit
 126         * Use uint64_t for packet header content size and packet size
 127         * Fix: compat layer only on supported architectures
 128         * Fix ring buffer 32/64 bits compat
 129         * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
 130         * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
 131         * Fix: statedump missing check for NULL namespace
 132
 133 2012-09-10 LTTng modules 2.1.0-rc1
 134         * fix timestamps on architectures without CONFIG_KTIME_SCALAR
 135         * Support for linux kernels 2.6.32 through 2.6.37
 136         * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
 137         * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
 138         * Add env hostname information
 139         * Fix: lttng_statedump_process_state for each PID NS has infinite loop
 140         * lttng_statedump_process_state for each PID NS
 141         * Support the hostname context
 142         * Fix: statedump namespaced pid, tid and ppid
 143         * Fix: statedump: disable vm maps enumeration
 144         * Fix: ensure userspace accesses are done with _inatomic
 145         * Fix: vppid context should test for current nsproxy
 146         * Add MIPS system call support
 147         * Change mode of lttng-syscalls-generate-headers.sh to 755
 148         * cleanup: fix typo in syscall instrumentation header
 149         * Cleanup: remove trailing whitespace in README
 150         * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
 151         * LTTng: probe-statedump: add #include <linux/sched.h>
 152         * fix: signal_generate event should print utf8 for comm field
 153         * Makes write operation a parameter for tp_memcpy macro
 154         * Add coding style document
 155         * Update instrumentation/events README file
 156         * Add makefile target for preprocessor
 157         * Fix: free_event_id check should compare unsigned int with -1U
 158         * Use unsigned long type for events discarded counter
 159         * Fix: update signal instrumentation for 3.4 kernel
 160         * LTTng Modules ARM syscall instrumentation
 161         * Fix: generate header missing echo -e for escape chars
 162         * Fix: add missing uaccess.h include (for ARM)
 163         * README: Document that CONFIG_MODULES is required
 164         * Fix: README typo
 165         * Fix: document required and optional kernel config options in README
 166
 167 2012-03-29 LTTng modules 2.0.1
 168         * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
 169
 170 2012-03-20 LTTng modules 2.0.0
 171         * First STABLE version
 172         * Add version name
 173
 174 2012-03-20 LTTng modules 2.0.0-rc4
 175         * Update README and add version name place-holder
 176
 177 2012-03-16 LTTng modules 2.0.0-rc3
 178         * Fix clock offset 32-bit multiplication overflow
 179         * Fix : wrong assign of fd in state dump
 180         * License cleanup, ifdef namespace cleanup
 181         * Fix: ensure power of 2 check handles 64-bit size_t entirely
 182
 183 2012-03-02 LTTng modules 2.0.0-rc2
 184         * Fix: dmesg printout should not print metadata warnings
 185         * Fix: use transport name as channel name
 186         * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
 187
 188 2012-02-20 LTTng modules 2.0.0-rc1
 189         * Standardize version across toolchain
 190         * statedump: Use old macro name for kernel 2.6.38
 191
 192 2012-02-16 LTTng modules 2.0-pre15
 193         * Add timer instrumentation
 194         * fix: need to undef mainline define
 195         * fix: Include signal.h instead of irq.h for prototype match check
 196         * Add signal instrumentation
 197
 198 2012-02-16 LTTng modules 2.0-pre14
 199         * syscall tracing: sys_getcpu
 200         * Add sys_clone x86 instrumentation
 201         * statedump: fix include circular dep
 202         * Implement state dump
 203
 204 2012-02-09 LTTng modules 2.0-pre13
 205         * Update README
 206         * environment: write sysname, release, version, domain to metadata
 207         * Allow open /proc/lttng for read & write
 208
 209 2012-02-02 LTTng modules 2.0-pre12
 210         * Add x86 32/64 execve syscall instrumentation override
 211         * Remove unused defines
 212         * Add padding to ABI
 213         * Use LTTNG_KERNEL_SYM_NAME_LEN
 214         * Update version to 1.9.9
 215         * Add missing double-quotes to clock uuid
 216         * clock: read bootid as clock monotonic ID
 217         * Fix comment
 218         * Cleanup comment
 219         * clock: output clock description in metadata
 220         * Properly fix the timekeeping overflow detection
 221         * Fix init bug
 222         * rename lib-ring-buffer to lttng-lib-ring-buffer
 223         * Remove #warning
 224         * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
 225         * Update TODO
 226         * Update TODO
 227         * Remove debugfs file (keep only proc file)
 228         * Rename lttng-debugfs-abi files to lttng-abi
 229
 230 2011-12-13 LTTng modules 2.0-pre11
 231         * Fix OOPS caused by reference of config pointer
 232         * Gather detailed info from x86 64 32-bit compat syscall instrumentation
 233         * lttng lib: ring buffer move null pointer check to open
 234         * lttng lib: ring buffer remove duplicate null pointer
 235         * lttng lib: ring buffer: remove stale null-pointer
 236         * lttng wrapper: add missing include to kallsyms wrapper
 237         * lttng: cleanup one-bit signed bitfields
 238         * Add TODO file
 239         * Update symbol name length max size to 256
 240         * Fix last modifications to string_from_user operations
 241         * Document that depmod needs to be executed by hand
 242         * Fix strlen_user fault space reservation
 243         * Fix tp_copy_string_from_user handling of faults
 244         * Disable block layer tracing support for kernels < 2.6.38
 245         * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
 246         * Update trace clock warning to match the current development plan
 247         * ringbuffer: make ring buffer printk less verbose
 248         * Makefile: do not run depmod manually
 249
 250 2011-09-30 LTTng modules 2.0-pre10
 251         * x86-32: override sys_mmap syscall instrumentation
 252         * Fix cast warning
 253
 254 2011-09-29 LTTng modules 2.0-pre9
 255         * x86 32 syscalls: fix !CONFIG_UID16
 256         * Use __string_from_user
 257         * Add __string_from_user
 258         * Rename "comm" context to "procname"
 259         * Fetch "type" name field for mount syscall
 260         * Create common override file for all architectures
 261         * Shrink stack size usage
 262         * Cleanup: remove unused lttng-compat-syscalls.c file
 263         * Support detailed compat syscalls on x86_64
 264         * Fix syscall table
 265         * Add disabled compat syscalls detail (work in progress)
 266         * Add config compat support for detailed x86_32 syscalls
 267         * Handle newer 3.1+ perf API
 268         * Add dummy x86-32 override headers
 269         * Bind x86-32 syscall headers
 270         * Add x86-32 syscall headers
 271         * Add check for KALLSYMS_ALL in syscall extraction script
 272         * Automate string extraction for syscalls
 273         * Automate syscall filename/pathname extraction
 274         * Add exit to ring_buffer_frontend so module is unloadable
 275         * Add sys_open filename (x86_64)
 276         * Add missing memcpy callback
 277         * copy_from_user and memset
 278         * Add missing alignment after header write
 279         * lib ring buffer: add frontend init as module_init
 280         * lib ring buffer frontend: add missing lock initialization
 281         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
 282         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
 283         * Create override for sys_mmap
 284         * Rename syscalls -> syscall in LTTng ABI
 285         * Use different event name for compat syscalls
 286         * Allow trace syscall table override
 287         * Add dummy override files
 288         * syscall detail: add override capability
 289         * Add pointer pretty-print heuristics
 290         * Add __field_hex
 291         * Rename sys exit errno into ret
 292         * Enable detailed syscalls only for native x86_64
 293         * Use "unknown" for compat syscalls
 294         * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
 295         * Fix syscall exit
 296         * Fix sys exit
 297         * Only enable detailed syscalls for x86_64 for now
 298         * Merge unknown syscall method with extended detail method
 299         * Add underscore prefix before event names
 300         * Add syscalls pointers detailed syscall tracing
 301         * Use perl for regexp
 302         * Support generation of syscall probes for those with pointers
 303         * Support detailed syscalls with 0 arguments
 304         * detailed syscall tracing (work in progress)
 305         * Expose /proc/lttng file
 306         * Implement detailed syscall event probe
 307         * Disable perf build for < 2.6.33 kernels
 308         * Syscall detail mode: generate syscall table
 309         * block instrumentation: write cmd as hex sequence
 310         * lttng-events TRACE_EVENT generator cleanup
 311         * block layer instrumentation: fix cmd field
 312         * Remove 0 args syscalls for now from type-aware syscall cb generator
 313         * Generate trace syscall table macros
 314         * Put syscall tracing without arg types back in place
 315         * Detailed system call tracing (TRACE_EVENT() generation for integer support)
 316         * lttng events probes: don't clash with "ctx" variable name
 317         * lib ring buffer must take private pointer copy before decrementing refcount
 318
 319 2011-08-16 LTTng modules 2.0-pre8
 320         * Fix metadata buffer wait/wakeup
 321
 322 2011-08-12 LTTng modules 2.0-pre7
 323         * Add missing module refcount to lttng_tracepoint_list_fops
 324         * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2