Issue #25348: Add --pgo and --pgo-job flags to PCbuild\build.bat
diff --git a/PCbuild/build.bat b/PCbuild/build.bat
index cfbc4a2..88b1f06 100644
--- a/PCbuild/build.bat
+++ b/PCbuild/build.bat
@@ -25,6 +25,9 @@
echo. -v Increased output messages
echo. -k Attempt to kill any running Pythons before building (usually done
echo. automatically by the pythoncore project)
+echo. --pgo Build with Profile-Guided Optimization. This flag
+echo. overrides -c and -d
+echo. --test-marker Enable the test marker within the build.
echo.
echo.Available flags to avoid building certain modules.
echo.These flags have no effect if '-e' is not given:
@@ -38,7 +41,8 @@
echo. Set the platform (default: Win32)
echo. -t Build ^| Rebuild ^| Clean ^| CleanAll
echo. Set the target manually
-echo. --test-marker Enable the test marker within the build.
+echo. --pgo-job The job to use for PGO training; implies --pgo
+echo. (default: "-m test --pgo")
exit /b 127
:Run
@@ -51,6 +55,12 @@
set parallel=/m
set verbose=/nologo /v:m
set kill=
+set do_pgo=
+set pgo_job=-m test --pgo
+set on_64_bit=true
+
+rem This may not be 100% accurate, but close enough.
+if "%ProgramFiles(x86)%"=="" (set on_64_bit=false)
:CheckOpts
if "%~1"=="-h" goto Usage
@@ -63,6 +73,8 @@
if "%~1"=="-M" (set parallel=) & shift & goto CheckOpts
if "%~1"=="-v" (set verbose=/v:n) & shift & goto CheckOpts
if "%~1"=="-k" (set kill=true) & shift & goto CheckOpts
+if "%~1"=="--pgo" (set do_pgo=true) & shift & goto CheckOpts
+if "%~1"=="--pgo-job" (set do_pgo=true) & (set pgo_job=%~2) & shift & shift & goto CheckOpts
if "%~1"=="--test-marker" (set UseTestMarker=true) & shift & goto CheckOpts
if "%~1"=="-V" shift & goto Version
rem These use the actual property names used by MSBuild. We could just let
@@ -78,15 +90,49 @@
if "%IncludeExternals%"=="true" call "%dir%get_externals.bat"
-if "%platf%"=="x64" (set vs_platf=x86_amd64)
+if "%platf%"=="x64" (
+ if "%on_64_bit%"=="true" (
+ rem This ought to always be correct these days...
+ set vs_platf=amd64
+ ) else (
+ if "%do_pgo%"=="true" (
+ echo.ERROR: Cannot cross-compile with PGO
+ echo. 32bit operating system detected, if this is incorrect,
+ echo. make sure the ProgramFiles(x86^) environment variable is set
+ exit /b 1
+ )
+ set vs_platf=x86_amd64
+ )
+)
rem Setup the environment
call "%dir%env.bat" %vs_platf% >nul
-if "%kill%"=="true" (
- msbuild /v:m /nologo /target:KillPython "%dir%\pythoncore.vcxproj" /p:Configuration=%conf% /p:Platform=%platf% /p:KillPython=true
-)
+if "%kill%"=="true" call :Kill
+if "%do_pgo%"=="true" (
+ set conf=PGInstrument
+ call :Build
+ del /s "%dir%\*.pgc"
+ del /s "%dir%\..\Lib\*.pyc"
+ echo on
+ call "%dir%\..\python.bat" %pgo_job%
+ @echo off
+ call :Kill
+ set conf=PGUpdate
+)
+goto Build
+
+:Kill
+echo on
+msbuild "%dir%\pythoncore.vcxproj" /t:KillPython %verbose%^
+ /p:Configuration=%conf% /p:Platform=%platf%^
+ /p:KillPython=true
+
+@echo off
+goto :eof
+
+:Build
rem Call on MSBuild to do the work, echo the command.
rem Passing %1-9 is not the preferred option, but argument parsing in
rem batch is, shall we say, "lackluster"
@@ -98,7 +144,8 @@
/p:UseTestMarker=%UseTestMarker%^
%1 %2 %3 %4 %5 %6 %7 %8 %9
-@goto :eof
+@echo off
+goto :eof
:Version
rem Display the current build version information