cpython/.gitignore
Gregory Szorc 5360cb3d56
gh-101282: Apply BOLT optimizations to libpython for shared builds (#104709)
Apply BOLT optimizations to libpython for shared builds. Most of the C
code is in libpython so it is critical to apply BOLT there fully realize
BOLT benefits.

This change also reworks how BOLT instrumentation is applied. It
effectively removes the readelf based logic added in gh-101525 and
replaces it with a mechanism that saves a copy of the pre-bolt binary
and restores that copy when necessary. This allows us to perform BOLT
optimizations without having to manually delete the output binary to
force a new bolt run.

Also:
- add a clean-bolt target for purging BOLT files and hook that up to the
  clean target
- .gitignore BOLT related files

Before and after this refactor, `make` will no-op after a previous run.
Both versions should also share common make DAG deficiencies where
targets fail to trigger as often as they need to or can trigger
prematurely in certain scenarios. e.g. after this change you may need to
`rm profile-bolt-stamp` to force a BOLT run because there aren't
appropriate non-phony targets for BOLT's make target to depend on.

To make it easier to iterate on custom BOLT settings, the flags to pass
to instrumentation and application are now defined in configure and can
be overridden by passing BOLT_INSTRUMENT_FLAGS and BOLT_APPLY_FLAGS.
2023-05-22 13:45:20 +02:00

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#####
# First, rules intended to apply in all subdirectories.
# These contain no slash, or only a trailing slash.
*.cover
*.iml
*.o
*.lto
*.a
*.so
*.so.*
*.dylib
*.dSYM
*.dll
*.wasm
*.orig
*.pyc
*.pyd
*.pyo
*.rej
*.swp
*~
*.gc??
*.profclang?
*.profraw
# Copies of binaries before BOLT optimizations.
*.prebolt
# BOLT profile data.
*.fdata
*.dyn
.gdb_history
.purify
__pycache__
.hg/
.svn/
.idea/
tags
TAGS
.vs/
.vscode/
gmon.out
.coverage
.mypy_cache/
.pytest_cache/
.DS_Store
*.exe
# Ignore core dumps... but not Tools/msi/core/ or the like.
core
!core/
#####
# Then, rules meant for a specific location relative to the repo root.
# These must contain a non-trailing slash (and may also have a trailing slash.)
Doc/build/
Doc/venv/
Doc/.venv/
Doc/env/
Doc/.env/
Include/pydtrace_probes.h
Lib/lib2to3/*.pickle
Lib/site-packages/*
!Lib/site-packages/README.txt
Lib/test/data/*
!Lib/test/data/README
/_bootstrap_python
/Makefile
/Makefile.pre
Mac/Makefile
Mac/PythonLauncher/Info.plist
Mac/PythonLauncher/Makefile
Mac/PythonLauncher/Python Launcher
Mac/PythonLauncher/Python Launcher.app/*
Mac/Resources/app/Info.plist
Mac/Resources/framework/Info.plist
Mac/pythonw
/*.framework/
Misc/python.pc
Misc/python-embed.pc
Misc/python-config.sh
Modules/Setup.bootstrap
Modules/Setup.config
Modules/Setup.local
Modules/Setup.stdlib
Modules/config.c
Modules/ld_so_aix
Programs/_freeze_module
Programs/_testembed
PC/python_nt*.h
PC/pythonnt_rc*.h
Modules/python.exp
PC/*/*.exp
PC/*/*.lib
PC/*/*.bsc
PC/*/*.dll
PC/*/*.pdb
PC/*/*.user
PC/*/*.ncb
PC/*/*.suo
PC/*/Win32-temp-*
PC/*/x64-temp-*
PC/*/amd64
PCbuild/*.user
PCbuild/*.suo
PCbuild/*.*sdf
PCbuild/*-pgi
PCbuild/*-pgo
PCbuild/*.VC.db
PCbuild/*.VC.opendb
PCbuild/amd64/
PCbuild/arm32/
PCbuild/arm64/
PCbuild/obj/
PCbuild/win32/
Tools/unicode/data/
/autom4te.cache
/build/
/builddir/
/config.cache
/config.log
/config.status
/config.status.lineno
# hendrikmuhs/ccache-action@v1
/.ccache
/platform
/profile-clean-stamp
/profile-run-stamp
/profile-bolt-stamp
/Python/deepfreeze/*.c
/pybuilddir.txt
/pyconfig.h
/python-config
/python-config.py
/python.bat
/python-gdb.py
/python.exe-gdb.py
/reflog.txt
/coverage/
/externals/
/htmlcov/
Tools/msi/obj
Tools/ssl/amd64
Tools/ssl/win32
Tools/freeze/test/outdir
# The frozen modules are always generated by the build so we don't
# keep them in the repo. Also see Tools/build/freeze_modules.py.
Python/frozen_modules/*.h
# The manifest can be generated at any time with "make regen-frozen".
Python/frozen_modules/MANIFEST
# Two-trick pony for OSX and other case insensitive file systems:
# Ignore ./python binary on Unix but still look into ./Python/ directory.
/python
!/Python/
# main branch only: ABI files are not checked/maintained
Doc/data/python*.abi