- 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]
- Changed -arm64 and -x64 to arm64 and x64
- Removed the Arches array and other multi-architecture stuff from Adnroid compiling and linking, and using the higher level UEToolchain functionality to handle multi-architecture
- AndroidToolchain is now a proper ClangToolchain subclass instead of overriding everything it did (being a proper ISPCToolchain subclass coming later)
- Updated some of the UEToolchain side stuff (Android is the first platform to need separate Link output, but still need a single Target)
- All the architecture stuff is driven by UEBuildAndroid, not AndroidToolchain, so the make-a-temp-toolchain object just to get architectures was removed
- Removed unused stuff like bAllowMissingNDK, bExecuteCompilerThroughShell, Arches/GPUArches arrays
- Added a high-levle ConvertToPlatformArchitecture() function that UBT can use to turn "x86_64" into the achitecture that Android wants of "x64"
#rb chris.babcock
#preflight 63bdb04271079a8d1c2ef110
[CL 23634002 by Josh Adams in ue5-main branch]
- ConvertToReadableArchitecture() - turn an internal platform arch string to a printable version
- IsX86Architecture() - returns true if the platform arch string represents an x86 architecture
- Changed Linux to use the HumanReadableName as the FolderNameForArchitecture, so it's shorter and it is not obfuscated anymore
#rb brandon.schaefer
#preflight 638fc65e9549ddaa288ccf73
#fyi dan.thompson
[CL 23419149 by Josh Adams in ue5-main branch]
* Removed deprecated or dead code paths
* Simplified build system setup for physics support
* Deprecated build system flags and unsupported macros
#jira none
#rb Chris.Caulfield, Kriss.Gossart
#preflight 62963ec0fe779f23c8ea0c5e
[CL 20450744 by Benn Gallagher in ue5-main branch]
This represents UE4/Main @17911760, Release-5.0 @17915875 and Dev-PerfTest @17914035
[CL 17918595 by aurel cordonnier in ue5-release-engine-test branch]
