[PATCH] D114641: [LNT] Remove `nm` dependency, used `objdump –t` instead

[Pavel Kosov via Phabricator via llvm-commits]

kpdev42 created this revision.
kpdev42 added reviewers: cmatthews, thopre, danilaml.
kpdev42 added a project: LLVM.
Herald added subscribers: dkolesnichenko, pengfei, kristof.beyls.
kpdev42 requested review of this revision.

It is necessary to use the correct `nm` and `objdump` for some targets (for example ARM thumb).
Wrong `nm` can provide an information but addresses may be wrong. The correct `nm` for ARM will report the address 0x1234 for a thumb binary, but system’s `nm` (x86) will report the address 0x1235.
It is very hard to investigate such issues. We suggest to remove `nm` dependency at all and use `objdump -t` instead.
Note objdump allows demangling too. It makes the profile page more human friendly.
Here is the objdump -t output format for reference https://github.com/llvm-mirror/llvm/blob/2c4ca6832fa6b306ee6a7010bfb80a3f2596f824/tools/llvm-objdump/llvm-objdump.cpp#L1850

OS Laboratory. Huawei Russian Research Institute. Saint-Petersburg


Repository:
  rLNT LNT

https://reviews.llvm.org/D114641

Files:
  lnt/server/ui/profile_views.py
  lnt/server/ui/static/lnt_profile.js
  lnt/testing/profile/cPerf.cpp
  lnt/testing/profile/perf.py
  lnt/testing/profile/profile.py

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