ChangeLog

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