ChangeLog

   1 2013-12-03 LTTng modules 2.3.4
   2         * Fix: handle unknown event type parameter
   3         * Fix: eliminate timestamp overlap between packets
   4         * gcc blacklist: only apply when building with gcc
   5         * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
   6
   7 2013-11-12 LTTng modules 2.3.3
   8         * Update ext4 instrumentation to Linux 3.12
   9         * Update RCU instrumentation to Linux 3.12
  10         * Update btrfs instrumentation to 3.12 kernel
  11         * Update vmscan instrumentation to Linux 3.12
  12         * update: kmem instrumentation 3.12 kernel support
  13         * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
  14         * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
  15         * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
  16
  17 2013-09-28 LTTng modules 2.3.2
  18         * Blacklist kernels 3.10.13 and 3.11.2
  19
  20 2013-09-20 LTTng modules 2.3.1
  21         * LTTng trace-clock: shrink kernel blacklist
  22         * Blacklist Linux kernels 3.10+
  23
  24 2013-09-03 LTTng modules 2.3.0
  25         * Fix: metadata stream should not reference session
  26         * Fix: btrfs: support 3.11 Linux kernel
  27         * statedump: remove KERN_DEBUG messages
  28         * Fix: ext4: add missing tracepoints for 3.11 kernel
  29         * Fix: ext4: Linux 3.11 support
  30         * Fix: ext3: 3.11 Linux support
  31         * Fix: statedump nsproxy 3.11 Linux support
  32
  33 2013-08-30 LTTng modules 2.3.0-rc2
  34         * Fix: metadata lttng channel refcount
  35         * README: lttng-modules incompatible with lttng 0.x patchset
  36
  37 2013-07-17 LTTng modules 2.3.0-rc1
  38         * Fix: kvm x86 probes side-effect
  39         * Fix: allow get/put subbuf in loop for metadata stream
  40         * Add support for kvm x86 specific tracepoints
  41         * Add mainline headers for kvm x86 tracepoints
  42         * Remove old 3.0.4 x86-64 extracted syscall info
  43         * Point the x86-64 overrides to newly extracted 3.10-rc7 files
  44         * Add syscalls extracted files from a 3.10-rc7 kernel
  45         * Improve documentation of the syscall extractor script
  46         * Fix: double length of __dynamic_len array
  47         * Fix printk instrumentation
  48         * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
  49         * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
  50         * Fix: SWITCH_FLUSH new sub-buffer checks
  51         * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
  52         * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
  53         * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
  54         * Fix: handle writes of length 0
  55         * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
  56         * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
  57         * print warning and return -EBUSY on double get_subbuf()
  58         * Add header to fix compilation of syscalls-extractor on 3.9 kernel
  59         * Fix: don't do 0 byte event reservation
  60         * Document that payload size need to be greater than 0
  61         * Fix build and load against linux-2.6.33.x
  62         * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
  63         * Metadata cache and multiple metadata channels
  64         * fix block instrumentation probe signature mismatch for 3.9.x kernels
  65         * fix: block instrumentation: NULL pointer dereference
  66         * Update rcu instrumentation to 3.9.[0-4]
  67         * Fix CPU hotplug section mismatches
  68         * Add system calls definitions for powerpc-32
  69         * Remove bashism in lttng-syscalls-generate-headers.sh
  70         * Update ARM (32 bit) syscall tracepoints to 3.4
  71
  72 2013-05-09 LTTng modules 2.2.0-rc2
  73         * Remove useless lttng_metadata probe
  74         * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
  75         * Fix: 3.9.0 block layer instrumentation build
  76         * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
  77         * Stop build if CONFIG_TRACEPOINTS is not set
  78         * Add comments to endifs.
  79         * Fix: remove ARM set_tls system call override
  80         * Cleanup: arm sys_mmap whitespace
  81         * Clean up using global_dirty_limit wrapper for writeback probe
  82
  83 2013-03-29 LTTng modules 2.2.0-rc1
  84         * Update README
  85         * Fix: vmscan instrumentation build
  86         * writeback instrumentation: remove duplicated structures
  87         * block: update instrumentation to 3.9 rc kernel
  88         * rcu: update to 3.9 rc kernel instrumentation
  89         * workqueue instrumentation: remove duplicated structures
  90         * Rename odd event names
  91         * Introduce API to remap event names exposed by LTTng
  92         * lttng-module: sched.h: Fix compilation on 3.9 kernel
  93         * Fix Linux 3.8 btrfs probe warning
  94         * Fix Linux 3.8 ext4 probe support
  95         * Fix 3.8 kernel support: namespace lttng_is_signed_type()
  96         * Fix: don't flush-final for offset 0 if reader is on sub-buffer
  97         * instrumentation sched: add missing fork pid info
  98         * Fix check in lttng_strlen_user_inatomic
  99         * instrumentation: sync with Linux commit a1ce392
 100         * Fix: statedump: missing locking, use lttng_iterate_fd
 101         * Implement lttng_iterate_fd wrapper
 102         * Instrumentation cleanup: kmem events should print hex pointers
 103         * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
 104         * Fix: statedump hang/too early completion due to logic error
 105         * Fix: statedump hang due to incorrect wait/wakeup use
 106         * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
 107         * wrapper/perf.h: Fix kernel version condition
 108         * Add new kernel probes instrumentation
 109         * Update kernel probes to more detailed match to kernel versions
 110         * Fix possible kernel build errors with linux-patches
 111         * Add missing MIT license text to 3 files under this license
 112         * Update sites using kernel version checking macro to new range
 113         * Make upper bound of kernel version checking macro exclusive
 114         * sock instrumentation: fix fields to get referenced values
 115         * ext3 instrumentation: fix of assignment code conversion
 116         * sched instrumentation: rename "pid" fields in sched_process_exec
 117         * Remove remaining semicolons in TP_fast_assign blocks
 118         * Fix compilation for 3.0 kernels that are named 2.6.40
 119         * Fix compilation for 3.0 branch (>= 3.0.39)
 120         * Add kernel version checking macro
 121         * Remove semicolons in TP_fast_assign blocks
 122         * Add ifdefs to net probe to support Linux 2.6.39
 123         * Add kernel probes for supplementary subsystems
 124         * Check if interrupt action name is not null in statedump
 125         * Fix exec instrumentation: only for kernels 3.4.0 and higher
 126         * Add TRACE_EVENT(sched_process_exec) to sched.h
 127         * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
 128         * Fix warning with 3.6.0 kernel
 129         * ABI with support for compat 32/64 bits
 130         * Perform calculation on bit size in 64-bit
 131         * Use uint64_t for packet header content size and packet size
 132         * Fix: compat layer only on supported architectures
 133         * Fix ring buffer 32/64 bits compat
 134         * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
 135         * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
 136         * Fix: statedump missing check for NULL namespace
 137
 138 2012-09-10 LTTng modules 2.1.0-rc1
 139         * fix timestamps on architectures without CONFIG_KTIME_SCALAR
 140         * Support for linux kernels 2.6.32 through 2.6.37
 141         * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
 142         * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
 143         * Add env hostname information
 144         * Fix: lttng_statedump_process_state for each PID NS has infinite loop
 145         * lttng_statedump_process_state for each PID NS
 146         * Support the hostname context
 147         * Fix: statedump namespaced pid, tid and ppid
 148         * Fix: statedump: disable vm maps enumeration
 149         * Fix: ensure userspace accesses are done with _inatomic
 150         * Fix: vppid context should test for current nsproxy
 151         * Add MIPS system call support
 152         * Change mode of lttng-syscalls-generate-headers.sh to 755
 153         * cleanup: fix typo in syscall instrumentation header
 154         * Cleanup: remove trailing whitespace in README
 155         * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
 156         * LTTng: probe-statedump: add #include <linux/sched.h>
 157         * fix: signal_generate event should print utf8 for comm field
 158         * Makes write operation a parameter for tp_memcpy macro
 159         * Add coding style document
 160         * Update instrumentation/events README file
 161         * Add makefile target for preprocessor
 162         * Fix: free_event_id check should compare unsigned int with -1U
 163         * Use unsigned long type for events discarded counter
 164         * Fix: update signal instrumentation for 3.4 kernel
 165         * LTTng Modules ARM syscall instrumentation
 166         * Fix: generate header missing echo -e for escape chars
 167         * Fix: add missing uaccess.h include (for ARM)
 168         * README: Document that CONFIG_MODULES is required
 169         * Fix: README typo
 170         * Fix: document required and optional kernel config options in README
 171
 172 2012-03-29 LTTng modules 2.0.1
 173         * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
 174
 175 2012-03-20 LTTng modules 2.0.0
 176         * First STABLE version
 177         * Add version name
 178
 179 2012-03-20 LTTng modules 2.0.0-rc4
 180         * Update README and add version name place-holder
 181
 182 2012-03-16 LTTng modules 2.0.0-rc3
 183         * Fix clock offset 32-bit multiplication overflow
 184         * Fix : wrong assign of fd in state dump
 185         * License cleanup, ifdef namespace cleanup
 186         * Fix: ensure power of 2 check handles 64-bit size_t entirely
 187
 188 2012-03-02 LTTng modules 2.0.0-rc2
 189         * Fix: dmesg printout should not print metadata warnings
 190         * Fix: use transport name as channel name
 191         * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
 192
 193 2012-02-20 LTTng modules 2.0.0-rc1
 194         * Standardize version across toolchain
 195         * statedump: Use old macro name for kernel 2.6.38
 196
 197 2012-02-16 LTTng modules 2.0-pre15
 198         * Add timer instrumentation
 199         * fix: need to undef mainline define
 200         * fix: Include signal.h instead of irq.h for prototype match check
 201         * Add signal instrumentation
 202
 203 2012-02-16 LTTng modules 2.0-pre14
 204         * syscall tracing: sys_getcpu
 205         * Add sys_clone x86 instrumentation
 206         * statedump: fix include circular dep
 207         * Implement state dump
 208
 209 2012-02-09 LTTng modules 2.0-pre13
 210         * Update README
 211         * environment: write sysname, release, version, domain to metadata
 212         * Allow open /proc/lttng for read & write
 213
 214 2012-02-02 LTTng modules 2.0-pre12
 215         * Add x86 32/64 execve syscall instrumentation override
 216         * Remove unused defines
 217         * Add padding to ABI
 218         * Use LTTNG_KERNEL_SYM_NAME_LEN
 219         * Update version to 1.9.9
 220         * Add missing double-quotes to clock uuid
 221         * clock: read bootid as clock monotonic ID
 222         * Fix comment
 223         * Cleanup comment
 224         * clock: output clock description in metadata
 225         * Properly fix the timekeeping overflow detection
 226         * Fix init bug
 227         * rename lib-ring-buffer to lttng-lib-ring-buffer
 228         * Remove #warning
 229         * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
 230         * Update TODO
 231         * Update TODO
 232         * Remove debugfs file (keep only proc file)
 233         * Rename lttng-debugfs-abi files to lttng-abi
 234
 235 2011-12-13 LTTng modules 2.0-pre11
 236         * Fix OOPS caused by reference of config pointer
 237         * Gather detailed info from x86 64 32-bit compat syscall instrumentation
 238         * lttng lib: ring buffer move null pointer check to open
 239         * lttng lib: ring buffer remove duplicate null pointer
 240         * lttng lib: ring buffer: remove stale null-pointer
 241         * lttng wrapper: add missing include to kallsyms wrapper
 242         * lttng: cleanup one-bit signed bitfields
 243         * Add TODO file
 244         * Update symbol name length max size to 256
 245         * Fix last modifications to string_from_user operations
 246         * Document that depmod needs to be executed by hand
 247         * Fix strlen_user fault space reservation
 248         * Fix tp_copy_string_from_user handling of faults
 249         * Disable block layer tracing support for kernels < 2.6.38
 250         * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
 251         * Update trace clock warning to match the current development plan
 252         * ringbuffer: make ring buffer printk less verbose
 253         * Makefile: do not run depmod manually
 254
 255 2011-09-30 LTTng modules 2.0-pre10
 256         * x86-32: override sys_mmap syscall instrumentation
 257         * Fix cast warning
 258
 259 2011-09-29 LTTng modules 2.0-pre9
 260         * x86 32 syscalls: fix !CONFIG_UID16
 261         * Use __string_from_user
 262         * Add __string_from_user
 263         * Rename "comm" context to "procname"
 264         * Fetch "type" name field for mount syscall
 265         * Create common override file for all architectures
 266         * Shrink stack size usage
 267         * Cleanup: remove unused lttng-compat-syscalls.c file
 268         * Support detailed compat syscalls on x86_64
 269         * Fix syscall table
 270         * Add disabled compat syscalls detail (work in progress)
 271         * Add config compat support for detailed x86_32 syscalls
 272         * Handle newer 3.1+ perf API
 273         * Add dummy x86-32 override headers
 274         * Bind x86-32 syscall headers
 275         * Add x86-32 syscall headers
 276         * Add check for KALLSYMS_ALL in syscall extraction script
 277         * Automate string extraction for syscalls
 278         * Automate syscall filename/pathname extraction
 279         * Add exit to ring_buffer_frontend so module is unloadable
 280         * Add sys_open filename (x86_64)
 281         * Add missing memcpy callback
 282         * copy_from_user and memset
 283         * Add missing alignment after header write
 284         * lib ring buffer: add frontend init as module_init
 285         * lib ring buffer frontend: add missing lock initialization
 286         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
 287         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
 288         * Create override for sys_mmap
 289         * Rename syscalls -> syscall in LTTng ABI
 290         * Use different event name for compat syscalls
 291         * Allow trace syscall table override
 292         * Add dummy override files
 293         * syscall detail: add override capability
 294         * Add pointer pretty-print heuristics
 295         * Add __field_hex
 296         * Rename sys exit errno into ret
 297         * Enable detailed syscalls only for native x86_64
 298         * Use "unknown" for compat syscalls
 299         * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
 300         * Fix syscall exit
 301         * Fix sys exit
 302         * Only enable detailed syscalls for x86_64 for now
 303         * Merge unknown syscall method with extended detail method
 304         * Add underscore prefix before event names
 305         * Add syscalls pointers detailed syscall tracing
 306         * Use perl for regexp
 307         * Support generation of syscall probes for those with pointers
 308         * Support detailed syscalls with 0 arguments
 309         * detailed syscall tracing (work in progress)
 310         * Expose /proc/lttng file
 311         * Implement detailed syscall event probe
 312         * Disable perf build for < 2.6.33 kernels
 313         * Syscall detail mode: generate syscall table
 314         * block instrumentation: write cmd as hex sequence
 315         * lttng-events TRACE_EVENT generator cleanup
 316         * block layer instrumentation: fix cmd field
 317         * Remove 0 args syscalls for now from type-aware syscall cb generator
 318         * Generate trace syscall table macros
 319         * Put syscall tracing without arg types back in place
 320         * Detailed system call tracing (TRACE_EVENT() generation for integer support)
 321         * lttng events probes: don't clash with "ctx" variable name
 322         * lib ring buffer must take private pointer copy before decrementing refcount
 323
 324 2011-08-16 LTTng modules 2.0-pre8
 325         * Fix metadata buffer wait/wakeup
 326
 327 2011-08-12 LTTng modules 2.0-pre7
 328         * Add missing module refcount to lttng_tracepoint_list_fops
 329         * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2