CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.9.0] 2019-03-16

Deprecated

• Deprecate sym(). Use ksym() instead (50a66d2) by williangaspar williangaspar360@gmail.com
• Deprecate stack. Use kstack instead (e8b99cd) by williangaspar williangaspar360@gmail.com

Added

• List usdt probes with -l (fa7d5f3) by Timothy J Fontaine tjfontaine@gmail.com
• Introduce perf formatting for ustack()/kstack() (db910b9) by Matheus Marchini mat@mmarchini.me
• Add increment and decrement operators (++/--) (c8d8a08, 6aa66a1, 223d8d8, 1f82aaf, 8c5c4ea) by Dale Hamel dale.hamel@shopify.com
• Add changelog file to keep track of unreleased changes (d11fb01) by Matheus Marchini mat@mmarchini.me
• Allow args with multiple tracepoints (a0a905f, 2df50d3, cddae1a) by Brendan Gregg bgregg@netflix.com
• Add elapsed builtin (0fde181) by Brendan Gregg brendan.d.gregg@gmail.com
• Add support to demangle C++ symbols in userspace stack traces (872525c) by Augusto Caringi acaringi@redhat.com
• allow \r (e7f0584) by Brendan Gregg bgregg@netflix.com
• Use debuginfo files information when available (1132d42) by Augusto Caringi acaringi@redhat.com
• Add ustack([int limit])/kstack([int limit]) calls (08da997) by Matheus Marchini mat@mmarchini.me
• Allow custom provider name in USDT probe definition (361245c, 80d640a, 20ddfed, c3a6ff1) by Dale Hamel dale.hamel@shopify.com
• Detect kernel headers even if they are splitted into source/ and build/ directories (4d76385) by Kirill Smelkov kirr@nexedi.com
• Add support for arm64 (aarch64) (47fa8aa) by Ali Saidi alisaidi@amazon.com
• Allow customizing stdout buffering mode via -b (1663b84) by Hongli Lai (Phusion) hongli@phusion.nl
• Add support to list tracepoint arguments (#323) (4a048fc) by Augusto Caringi acaringi@redhat.com
• Add ksym as a replacement for sym (50a66d2) by williangaspar williangaspar360@gmail.com
• Add kstack as a replacement for stack (e8b99cd, 840712b, f8f7ceb,6ec9a02) by williangaspar williangaspar360@gmail.com
• cmake: add BUILD_TESTING support (a56ab12) by Aleksa Sarai cyphar@cyphar.com
• Add --version (61a4650, eab3675) by williangaspar williangaspar360@gmail.com
• Add hint to install docs and normalize format (c0084a2) by Daniel Xu dxu@dxuuu.xyz
• Make bpftrace -l list sofware and hardware types (#44) (acd9a80) by Augusto Caringi acaringi@redhat.com
• Print program ID when the verbose option is enabled. (8e8258d) by David Calavera david.calavera@gmail.com

Changed

• Use struct when casting on docs and tools (e2ba048) by Brendan Gregg bgregg@netflix.com
• Allow using the struct keyword when casting (df03256) by williangaspar williangaspar360@gmail.com
• Make path optional on usdts when attaching to pid (c1c7c83) by Timothy J Fontaine tjfontaine@gmail.com
• Resolve binary name from PATH for usdts and uprobes (28f0834) by Matheus Marchini mat@mmarchini.me
• Use map lookups instead of sequential checks in tcpdrop.bt and tcpretrans.bt (cb0969c) by Slavomir Kaslev kaslevs@vmware.com
• Implicitly declare variables to 0 if used but not defined (a408cc2) by Matheus Marchini mat@mmarchini.me
• Sort all integer maps by values, ascending (c378f57) by Dale Hamel dale.hamel@shopify.com
• Change Ubuntu install to LLVM 6.0 (98353bf) by Brendan Gregg bgregg@netflix.com
• ignore EFAULT stack IDs (f080bbf) by Brendan Gregg bgregg@netflix.com
• Usage updates (6de4101) by Brendan Gregg bgregg@netflix.com
• make map stack indentation 4 chars (c1dd418) by Brendan Gregg bgregg@netflix.com
• Print error messages on all abort() calls (5c2ca5b) by williangaspar williangaspar360@gmail.com
• Lesson 9: Replace "stack" to "kstack" (1ac56bd) by CavemanWork yingyun@caveman.work
• Use structs with semicolons in tools and documentation (85dba93) by Brendan Gregg bgregg@netflix.com
• Allow semicolon after struct definition (5982c74) by williangaspar williangaspar360@gmail.com
• remove unnecessary newlines in -l (bb4a83c) by Brendan Gregg bgregg@netflix.com
• list sw/hw probes with full names (6f3e1c4) by Brendan Gregg bgregg@netflix.com
• hist: split negative, zero, and one into separate buckets (48c0afb) by Brendan Gregg bgregg@netflix.com
• lhist: interval notation tweak (43e7974) by Brendan Gregg bgregg@netflix.com
• runqlat.bt: remove if semicolon (c10c0dc) by Brendan Gregg bgregg@netflix.com
• Probe list optimizations and improvements (7f84552) by Augusto Caringi acaringi@redhat.com
• Link against system installed bcc (#327) (4c3fbad) by Dan Xu accounts@dxuuu.xyz
• Make semicolon optional after if and unroll blocks (d74d403) by williangaspar williangaspar360@gmail.com
• Avoid crashing if mistakenly just '-d' or '-v' is used (f2f6732) by Augusto Caringi acaringi@redhat.com
• Return cleanly after printing help (1d41717) by Daniel Xu dxu@dxuuu.xyz

Fixed

• Make sure we create map keys when we have all the typing information (971bd77) by Matheus Marchini mat@mmarchini.me
• Fix for new bpf_attach_kprobe signature (080bef8) by Matheus Marchini mat@mmarchini.me
• Fix string comparison improperly deallocating variables (ffa173a) by williangaspar williangaspar360@gmail.com
• Fix probe keys on maps when the map is used more than one time (df81736) by Matheus Marchini mat@mmarchini.me
• Fix using same variable name on multiple programs (61a14f2) by williangaspar williangaspar360@gmail.com
• Fix build on old compilers (644943a, 1b69272) by Kirill Smelkov kirr@nexedi.com
• Fix build with latest bcc (d64b36a) by williangaspar williangaspar360@gmail.com
• Don't throw warning for undefined types in tracepoint structure definition if args is not used (f2ebe1a) by Matheus Marchini mat@mmarchini.me
• Fix for 'redefinition of tracepoint' warning message (baaeade) by Augusto Caringi acaringi@redhat.com
• Minor fixes in our documentation (0667533) by Matheus Marchini mat@mmarchini.me
• Fix string comparison (5e114dd, 63acdb6) by williangaspar williangaspar360@gmail.com
• Prevent empty trigger functions to be optimized away with -O2 (#218) (9f2069b) by Augusto Caringi acaringi@redhat.com
• Fix -l behavior with shortcut probe names (2d30e31) by williangaspar williangaspar360@gmail.com
• Fix alpine docker build (#372) (2b83b67) by Dan Xu accounts@dxuuu.xyz
• Fix tracepoint wildcards (946c785) by Brendan Gregg bgregg@netflix.com
• tests: fix codegen test fot call_hist (342fd6d) by Matheus Marchini mat@mmarchini.me
• docs: fix trivial typos (3da1980) by Xiaozhou Liu liuxiaozhou@bytedance.com
• Fix symbol translation for func, sym, and stack (6276fb5) by Brendan Gregg bgregg@netflix.com
• Fix wrong package name in Ubuntu Dockerfile (f8e67a9) by xbe xbe@users.noreply.github.com
• Fix wrong package name in build instructions (8e597de) by Daniel Xu dxu@dxuuu.xyz
• Fix arguments and error messages for tracepoint shortcut t (0eddba7) by williangaspar williangaspar360@gmail.com

Internal

• Fix 'different signedness' warning messages in codegen call_[uk]stack.cpp (cb25318) by Augusto Caringi acaringi@redhat.com
• Fix 'signedness' warning message in tracepoint_format_parser.cpp (c3e562f) by Augusto Caringi acaringi@redhat.com
• Stop linking against bcc-loader-static (5fbb7a7) by Daniel Xu dxu@dxuuu.xyz
• Speeding up runtime tests (60c5d96) by williangaspar williangaspar360@gmail.com
• docker: make sure debugfs is mounted (7dcfc47) by Zi Shen Lim zlim.lnx@gmail.com
• Better coverage for variable_clear() (34fdded) by williangaspar williangaspar360@gmail.com
• Add missing space (c65e7c1) by puyuegang puyuegang@gmail.com
• Ignore warnings on code generated by bison (a935942) by Matheus Marchini mat@mmarchini.me
• Ignore warnings from LLVM headers (b6c4fd6) by Matheus Marchini mat@mmarchini.me
• Downgrade back to c++14 (f6986d8) by Matheus Marchini mat@mmarchini.me
• Fix 'parameter not used' warning (2401ab3) by Matheus Marchini mat@mmarchini.me
• Fix new build warning msg after c++17 was enabled (e4cbe48) by Augusto Caringi acaringi@redhat.com
• Get rid of cmake CMP0075 policy warning (9b8208a) by Augusto Caringi acaringi@redhat.com
• Use C++17 instead of C++14 (4b4d5dc) by Alex Birch Birch-san@users.noreply.github.com
• Re-enable more build warnings, fix related warnings #316 (8c383dc) by Augusto Caringi acaringi@redhat.com
• Define __BPF_TRACING__ before building (required for kernel 4.19+) (e0bf01d) by Kirill Smelkov kirr@nexedi.com
• Re-enable subset of build warnings and fix some related warnings #316 (f0f56b0) by Augusto Caringi acaringi@redhat.com
• Cleanup enforce_infinite_rmlimits : removed getrlimit() : Added error description using strerror() (d76465f) by T K Sourab sourabhtk37@gmail.com
• use the new libbcc API: bcc_{create_map, prog_load} when possible (c03c39f) by Xiaozhou Liu liuxiaozhou@bytedance.com
• resources: generate c++ file instead of c file (5e1350b) by Matheus Marchini mat@mmarchini.me
• docker: disable runtime tests on CI (0667b92) by Matheus Marchini mat@mmarchini.me
• Hide -inl.h header from interface (10a43d0) by Daniel Xu dxu@dxuuu.xyz

[0.8.0] - 2019-01-06

This is a release to aid packaging. bpftrace has not reached a 1.0 release status yet, as there are still development changes and things to fix. But what is here should be tremendously useful, provided you bear in mind that there will be some changes made to the programming language and command line options between now and a 1.0 release, so any tools or documentation written will become out of date and require changes. If you are anxiously waiting a 1.0 release, please consider contributing so that it can be released sooner.