v0.20.0

[0.20.0] 2024-01-22

Added

• Add log2 histograms with finer granularity
  • #2831
• Add a jiffies builtin for advanced usages
  • #2769
• Emit better errors messages for invalid attachpoints
  • #2781
• Add support for uprobe_multi link
  • #2810
• Attach BTF to generated BPF programs
  • #2804
• Add fentry/fexit aliases for kfunc/kretfunc
  • #2844
• Add support for uprobe pid targeting
  • #2830
• New builtin for getting the number of map elements
  • #2840
• Add more helpful error messages for map operations
  • #2905
• New config block syntax
  • #2815

Changed

• Standardize config and env var names
  • #2815

Deprecated

Removed

• Remove snapcraft support
  • #2832

Fixed

• Fix JSON output for cgroup_path
  • #2793
• Fix silent truncation of 64-bit values in hist()
  • #2822
• utils: use /data/local/tmp as temprary dir on Android
  • #2828
• Fix uprobe multi probe for targets with wildcards
  • #2851
• Fix symbolication on for 32-bit userspcae and 64-bit kernel
  • #2869
• Fix retval for kretfunc/fexit
  • #2864
• Fix attachment/listing of wildcarded module kfuncs
  • #2914
• Fix uprobe attachment across container boundary
  • #2662
• Fix generated BTF for older kernels
  • #2934

Docs

• Fix one-liner tutorial for systems with BTF
  • #2919
  • #2924

Tools

• Add PPID field to execsnoop.bt
  • #2876
• Use strftime instead of elapsed in execsnoop.bt
  • #2904
• Use strftime instead of elapsed in threadsnoop.bt
  • #2917
• Increase PID field width and align to the right in threadsnoop.bt
  • #2928
• Update runqlen.bt to remove runnable_weight field from cfs_rq struct.
  • #2790
• Update mdflush.bt to use blkdev.h instead of genhd.h for non-BTF builds.
  • #2849
• Add milliseconds to timestamp and align numbers to the right in killsnoop.bt
  • #2936