[FYI] Joe.Kirchoff
Original CL Desc
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UnrealBuildTool: Always enable ValidateFormatStrings for engine modules, and create a pch variant for modules that opt out
#rnx
[CL 27331965 by joe kirchoff in ue5-main branch]
This removes the old hack that renames the target based on nonunity being set while also adding a new intermediates folder for IWYU.
#jira UE-190274
#rb joe.kirchoff
[CL 26514944 by christopher waters in ue5-main branch]
* bIsPlatformExtension - true if there's a platform extension .Build.cs with a subclass
* PlatformDirectory - location of the main Build.cs or the platform extension's subclass Build.cs
* PlatformModuleDirectory - string version of above
* PlatformSubdirectoryName - this is the name underneath the ModuleDirectory that platform files are in, or '.' (because platform extensions are already under a platform dir, we don't add another directory - there would be ThirdParty/MyLib/MyPlatform/foo.lib vs Platforms/MyPlatform/ThirdParty/MyLib/foo.lib, in the extension case, there's no MyPlatform directory underneath the module dir)
- With these changes, basic Build.cs files can be written without needing to know if a platform is an extension or not, and the extension subclasses can be much simpler
#rb david.harvey
[CL 26483586 by Josh Adams in ue5-main branch]
- Allow for per-project override in a project's platform's config folder (this is merging with my other work on per-project SDKs and validation of multi-target builds)
- More versions will move over after this
#rb david.harvey
[CL 26150552 by josh adams in ue5-main branch]
* Use object type rather than var
* Remove double newlines
* Use pattern matching
#rnx
#preflight 647780095d23eca37d28a387
[CL 25706751 by joe kirchoff in ue5-main branch]
[FYI] Joe.Kirchoff
Original CL Desc
-----------------------------------------------------------------
UnrealBuildTool: More automated code cleanup
#rnx
[CL 25695155 by joe kirchoff in ue5-main branch]
- Creates the UnrealArchitectures class, which wraps a list of UnrealArch objects
- UnrealArch is a single architecture, expandable enum-like struct
- There is no more concept of "no/default architecture", there is always a valid active architecture when building
- Most uses of "string Architecture" are replaced with one of the two above, depending if multiple architectures are supported or not
- UnrealArch has some platform-extensions for platform-specific naming (like Linux adds in LinuxName that turns, for instance, Arm64 -> aarch64-unknown-linux-gnueabi, which is used in folder names, etc)
- UnrealArch has bIsX64 which can be used determine intel instruction set (as opposed to arm)
- TargetRules class has an "Architecture" accessor that will return a single architecture if the active architectures is a single architecture, or throw an exception if multiple. This is useful in a majority of the cases where a paltform can only have a single architecture active in TargetRules (microsoft platforms, for instance, will create separate targets when compiling multiple architectures at once)
- Added UnrealArchitectureConfig class, which contains all the architecture information for a platform (what architectures are supported, what ones are currently active for given project, etc)
#preflight 63c81fb5b065224750a1759e
#rb mike.fricker,roman.dzieciol,joe.kirchoff,dmytro.vovk,brandon.schaefer [various parts]
#p4v-preflight-copy 23562471
[CL 23829977 by josh adams in ue5-main branch]
* Updated RulesAssembly to add the parent assembles to the assembly cache so the types in the other assemblies can be used when calling the constructor.
#preflight 63cf2823b84de45a0c12a6a4
[CL 23825371 by bryan sefcik in ue5-main branch]
This can be enabled by modifying `UnrealEngine\Engine\Saved\UnrealBuildTool\BuildConfiguration.xml` like so:
<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
<BuildConfiguration>
<bShaderCompilerWorkerTrace>true</bShaderCompilerWorkerTrace>
</BuildConfiguration>
</Configuration>
- Added a build configuration xml value, `bShaderCompilerWorkerTrace`.
- Turning this on will set USE_SHADER_COMPILER_WORKER_TRACE=1
- Move the parameter -nothreading to be set when we launch the process instead of internally as an extra cmd line arg.
- Unreal Insights uses a separate thread to send events so threading support is needed for the program. When we have USE_SHADER_COMPILER_WORKER_TRACE enabled we need to turn off `-nothreading`.
- When USE_SHADER_COMPILER_WORKER_TRACE is enabled we pass in `-trace=default` to get CPU event markers.
- The SCW program needs to turn on the following defines to be able to perform CPU and memory traces:
ENABLE_LOW_LEVEL_MEM_TRACKER=1
UE_MEMORY_TAGS_TRACE_ENABLED=1
UE_TRACE_ENABLED=1
- Instrument Shader Compiler Worker with TRACE_CPUPROFILER_EVENT_SCOPE. This are no-ops when this is turned off.
todo: Make the shader compiler worker inherit the trace args from the main process it was launched from.
#rb Yuriy.ODonnell
#jira none
#preflight 634ef80269246074db9637c2
[CL 22625183 by Jason Nadro in ue5-main branch]
