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Add bpfcall and runtime buffers#20

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jpsamaroo merged 7 commits intomasterfrom
jps/bpfcall
Apr 13, 2021
Merged

Add bpfcall and runtime buffers#20
jpsamaroo merged 7 commits intomasterfrom
jps/bpfcall

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@jpsamaroo jpsamaroo commented Apr 8, 2021 •
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Todo:

  • Test new helpers
  • Test buffer codegen
  • Implement and test constant strings

@jpsamaroo jpsamaroo added the enhancement New feature or request label Apr 8, 2021
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Add bpfcall and runtime buffers
97756c4 
Added runtime bpfcall helper
Added runtime buffers/strings
Reorganized files into runtime and host folders
Added trace_printk and get_current_comm helpers
@jpsamaroo
Pass kwargs through probes
de1a0d4
@jpsamaroo
Fix code_*
a24627b
@jpsamaroo
Fix LLVM contexts in RT maps
7607224
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jpsamaroo commented Apr 13, 2021

@PallHaraldsson this PR exposes the bpf_trace_printk helper (as BPFnative.RT.trace_printk), which you can use to print custom output to /sys/kernel/debug/tracing/trace. Check the "helpers" testset in the root-only tests for examples of how to use this.

@jpsamaroo jpsamaroo mentioned this pull request Apr 13, 2021
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jpsamaroo commented Apr 13, 2021

Also, in this PR I've disabled BTF output, since we're throwing assertions in LLVM during BTF generation. I'll probably need to finish JuliaLLVM/LLVM.jl#152 so we can fixup our debuginfo to match what LLVM (and the kernel) expects.

@jpsamaroo jpsamaroo merged commit e4d5d1c into master Apr 13, 2021
@jpsamaroo jpsamaroo deleted the jps/bpfcall branch April 13, 2021 13:12
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