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author | Yonghong Song <yhs@fb.com> | 2018-12-19 16:40:25 +0000 |
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committer | Yonghong Song <yhs@fb.com> | 2018-12-19 16:40:25 +0000 |
commit | 7b410ac352bea299441a34f3b899e728bae460a7 (patch) | |
tree | bc17e744edff0a02e91472f79f9d88c39f657223 /lldb/packages/Python/lldbsuite/test/lang/cpp/std-function-step-into-callable/TestStdFunctionStepIntoCallable.py | |
parent | 8d221b40a7963caf19eaedf29f0512f6a09cd994 (diff) | |
download | bcm5719-llvm-7b410ac352bea299441a34f3b899e728bae460a7.tar.gz bcm5719-llvm-7b410ac352bea299441a34f3b899e728bae460a7.zip |
[BPF] Generate BTF DebugInfo under BPF target
This patch implements BTF (BPF Type Format).
The BTF is the debug info format for BPF, introduced
in the below linux patch:
https://github.com/torvalds/linux/commit/69b693f0aefa0ed521e8bd02260523b5ae446ad7#diff-06fb1c8825f653d7e539058b72c83332
and further extended several times, e.g.,
https://www.spinics.net/lists/netdev/msg534640.html
https://www.spinics.net/lists/netdev/msg538464.html
https://www.spinics.net/lists/netdev/msg540246.html
The main advantage of implementing in LLVM is:
. better integration/deployment as no extra tools are needed.
. bpf JIT based compilation (like bcc, bpftrace, etc.) can get
BTF without much extra effort.
. BTF line_info needs selective source codes, which can be
easily retrieved when inside the compiler.
This patch implemented BTF generation by registering a BPF
specific DebugHandler in BPFAsmPrinter.
Signed-off-by: Yonghong Song <yhs@fb.com>
Differential Revision: https://reviews.llvm.org/D55752
llvm-svn: 349640
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/lang/cpp/std-function-step-into-callable/TestStdFunctionStepIntoCallable.py')
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