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Releases: iovisor/bcc

Update debian changelog for release v0.36.0

26 Jan 02:27

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  • Support for kernel up to 6.18

  • New Tools
    tools/softirqslower: New tool to trace slow software interrupt handlers (#5356)

  • Enhanced Functionality
    libbpf-tools/opensnoop: Added full-path support with -F option (#5323, #5333)
    libbpf-tools/filelife: Added full-path support (#5347, ab8e061)
    libbpf-tools: Introduced path helpers (ab8e061)
    libbpf-tools/trace_helpers: Added str_loadavg() and str_timestamp() common functions (694de9f)
    libbpf-tools/filetop: Added directory filter capability (#5300)
    libbpf-tools/runqslower: Added -c option to filter by process name prefix (673911c)
    libbpf-tools/runqlat: Dynamically size pid/pidns histogram map (#5342)
    libbpf-tools/fsdist, fsslower: Added support for fuse filesystem (9691c56)
    libbpf-tools/tcptop: Major refactoring using fentry/fexit for better performance (75bb73a, e2c7917, d786eaa, da3a474)
    tools/opensnoop: Added full-path support with -F option (#5334, #5339)
    tools/kvmexit: Added AMD processor support and parallel post-processing (13a4e5a, c2af2ee)
    tools/offwaketime: Added raw tracepoint support to reduce overhead (380ee01)
    Python uprobe API: Added functionality to detach all uprobes for a binary (#5325)
    Python API: Added support for executing a program and tracing it (#5362)

  • Bug Fixes
    libbpf-tools/filelife: Fixed wrong full-path handling (#5347)
    libbpf-tools/filelife: Fixed problem when using perf-buffer (ec8415b)
    libbpf-tools/funclatency: Delete the element from the starts map after it has been used (06ce134)
    libbpf-tools/offcputime: Fixed min/max_block_ns unit conversion error (#5327, d507a53)
    libbpf-tools/syncsnoop: Added support for sync_file_range2 and arm_sync_file_range() (4287921)
    libbpf-tools/ksnoop: Fixed two invalid access to map value (#5361)
    libbpf-tools/klockstat: Allows kprobe fallback to work with lock debugging (#5359)
    libbpf-tools/biotop: Fixed segmentation fault with musl libc build (52d2d09)
    libbpf-tools/syscall_helpers, Python BCC: Updated syscall list (add file_getattr/file_setattr) (b63d7e3, a9c6650)
    tools/tcpaccept: Fixed on recent kernels (c208d0e)
    tools/tcpconnect: Fixed iov field for DNS with Linux>=6.4 (#5382)
    tools/javaobjnew: Use MIN macro instead of min function (fb8910a)
    tools/biolatency, biosnoop, biotop: Use TRACEPOINT_PROBE() for tracepoints (#5366)
    Various tools: Don't use the old bpf_probe_read() helper (1cc15c3)
    CC: Support versioned SONAME in shared library resolution (beb1fe4, c351210)
    Python TCP: Added state2str() and applied to tools (bfa05d2)
    s390 architecture: Prevent invalid mem access when reading PAGE_OFFSET (d8595ee)

  • Build & Test Fixes
    Fixed build failure with clang21 (#5369)
    Fixed build for LLVM 23 by avoiding deprecated TargetRegistry overloads (#5401)
    ci: Make version.cmake handle shallow clone (2232b7e)
    ci: Various test fixes for proper CI operation (blk probes, rss_stat, kmalloc, btrfs/f2fs) (a499181, c338547, 6b7dd5d, ea5cf83)
    tests: Added coverage for versioned SONAME resolution (c351210)
    Removed luajit options to ensure no errors (26eaf13)

  • Doc update, other bug fixes and tools improvement

Update debian changelog for release v0.35.0

30 May 03:21
c31a1ca

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  * Support for kernel up to 6.14
  * New bcc tools: mptcp: enable mptcp for tcp traffic
  * tools/biosnoop: Fix biosnoop pattern option
  * Allow cmake run out of the source tree
  * Fix for test bpf_stack_id when running on custom image in yocto
  * libbpf-tools/map_helpers: Add bpf_map_lookup_and_delete_batch to dump_hash
  * libbpf-tools/biotop: Use dump_hash for map processing
  * uninstall: use execute_process() instead of exec_program()
  * clang: Fix pointer dereference on big-endian machines
  * ci: Upgrade to ubuntu 24.04
  * doc update, other bug fixes and example improvement.

Update debian changelog for release v0.34.0

11 Apr 15:34
1f63ae6

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  * Support for kernel up to 6.13
  * Bump cmake minimum version to 3.12
  * statsnoop: Display syscall name with -s
  * readahead: Fix incorrect page accessed count since kernel 5.16
  * libbpf-tools/opensnoop: Add new fields
  * libbpf-tools: hardirqs/softirqs: Fix logarithmic calculation issue
  * libbpf-tools/hardirqs: have better default display and add CPU column
  * libbpf-tools/klockstat: Better stack dump and summary info
  * libbpf-tools/sigsnoop: Support real-time signals and thread comm
  * libbpf-tools/statsnoop: Support more syscalls
  * libbpf-tools/memleak: Some fixes and better messages
  * tools/opensnoop: Add new fields and fix bad mode value
  * tools/profile: Prioritize using the cpu-cycles hardware event
  * tools/tcpdrop: Add support for dumping TCP drop reasons
  * Fix event name too long error in python source
  * doc update, other bug fixes and example improvement.

Update debian changelog for release v0.33.0

19 Jan 02:42
c8515f7

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  * Support for kernel up to 6.12
  * Add new bcc tool numasched
  * syms: Initialize ModulePath::fd_ to invalid FD
  * libbpf-tools/memleak: Fix off-by-one error
  * libbpf-tools/slabratetop: Fix failed to create kprobe error
  * libbpf_tools/profile: Support PID namespace mapping
  * libbpf-tools/mountsnoop: Support fsopen,fsconfig,fsmount,move_mount syscalls
  * tools/oomkill: get application level stack trace
  * tools/profile: Add additional information to backtrace
  * tools/mountsnoop: Fix fsmount printing wrong flags
  * tools/compactsnoop: Add aarch64 support
  * doc update, other bug fixes and tools improvement.

Update debian changelog for release v0.32.0

24 Nov 05:55
8d85dcf

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  * Support for kernel up to 6.11.
  * bcc tool update: wakeuptime, readahead, shmsnoop, offcputime, cachestat, cachetop, hardirqs
  * libbpf tool update: futexctn, profile, readhead, softirqs, hardirqs
  * Multiple enhancements for memleak: better error path checking, adding mremap uprobe, etc.
  * Support get pid/tgid in pid namespaces (cpudist, profile)
  * multiple pid filtering support: profile, offcputime
  * detect whether elf binary is PIE even if the binary is marked as DYN
  * Fix several compilation issues with llvm20
  * doc update, other bug fixes and tools improvement.

Update debian changelog for release v0.31.0

28 Jul 04:19

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  * Support for kernel up to 6.9.
  * Add support for bcachefs to fsdist and fsslower tools
  * libbpf tool update: memleak, syncsnoop, numamove, syscount, vfsstat, tcptop, capable, syncsnoop, sigsnoop, etc.
  * bcc tool update: biolatency, biosnoop, biotop, vfsstat, kvmexit, sslsniff, swapin, etc.
  * build: Remove llvm-dev dependency from libbcc
  * build: Remove dependency on LLVM header from libbcc packages
  * usdt: Fix bare register dereference on aarch64
  * Extend `bcc_proc` API which allows to limit search to specific pid
  * Fix several flaky tests.
  * doc update, other bug fixes and tools improvement.

bcc release v0.30.0

25 Mar 00:17
e7109fa

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  * Support for kernel up to 6.8.
  * Set minimum supported llvm version to 12, and add llvm17 test.
  * Add workqueue latency observation tool.
  * libbpf tool update: f2fsslower, opensnoop, futexctn, bindsnoop, ksnoop, klockstat, offcputime, etc.
  * bcc tool update: memleak, ttysnoop, bashreadline, tcpdrop, execsnoop, etc.
  * allow more flexible perf event options with new perf_custom_event_open() python API.
  * Fix userspace stack unwinding on powerpc.
  * add bpf_prog_test_run_opts() python API.
  * several deb package related changes.
  * Fix btf_type_tag issue with llvm 15.
  * Fix several flaky tests.
  * classify tools into different sub-categories.
  * doc update, other bug fixes and tools improvement.

bcc release v0.29.1

08 Dec 15:55

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A minor release to fix two issues below on top of v0.29.0:

  • python/cmake: remove extraneous comma between variables
  • *.py: fix "SyntaxWarning: invalid escape sequence" when using Python 3.12

bcc release v0.29.0

07 Dec 16:08

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  * Support for kernel up to 6.6.
  * new bcc tools: rdmaucma
  * new libbpf tools: f2fs, futexctn
  * bcc tool update: tcpstates, statsnoop, runqlat, bio tools, tcptop, slabratetop, tcprtt, etc.
  * libbpf tool update: tcprtt, tcppktlat, bio tools, execsnoop, bindsnoop, exitsnoop, etc.
  * s390x support for libbpf-tools
  * examples for perf/ipc
  * expose pid parameter in bpf_open_perf_event
  * allow for installing python as a non-system package
  * ci improvement: deprecate ubuntu 18.04 and allow multiple llvm versions
  * ci improvement: reitre fedora 34/26 and use fedora 38.
  * fix misaligned pointer accesses in some ringbuf using libbpf-tools
  * some new  enhancement for powerpc and riscv.
  * consolidate tools into different categories: filesystem/storage, networking, cpu and scheduling, etc.
  * doc update, other bug fixes and tools improvement

bcc release v0.28.0

28 Jun 20:54

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  • Support for kernel up to 6.3.
  • new libbpf tool: tcppktlat.
  • bcc tool updates: funcslower, wakeuptime, profile, offcputime, deadlock, funccount, argdist, kvmexit, runqlen and cpuunclaimed.
  • libbpf tool update: memleak, tcprtt, tcpconnlat, funclatency, syscount, cpufreq, biosnoop.
  • support ringbuf_query for bcc tools.
  • handle '[uprobes]' memory mapped file properly during stack tracing.
  • Fix maximum allowed index for print_linear_hist for bcc tools.
  • add module kfunc/kretfunc support.
  • clang rewriter: initialize only the requested parameters
  • filter with available_filter_functions to make multi-functions kprobes more robust for both bcc and libbpf tools.
  • doc update, other bug fixes and tools improvement