ChangeLog

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