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bpf_type_structure1
2015 Aug 14
2
[LLVM RFC] Add llvm.typeid.for intrinsic
This is for BPF output. BPF program output bytes to perf through a
tracepoint. For decoding such data, we need a way to describe the format
of the buffer. This patch is a try which gives each variable a unique
number by introducing a new intrinsic 'llvm.typeid.for'.
At the bottom is an example of using that intrinsic and the result
of
$ clang -target bpf -O2 -c -S ./test_typeid.c