Live++ reads object files at startup for game modules, and assigns unique ids to each compiland (used to disambiguate static variables). When compiling the patch, these compilands are modified to reference a unique id for the unity blob, causing the variables to be reconstructed.
Solution is to generate a JSON file to each output directory containing object files containing the mapping, and to use that to assign compiland ids at startup.
#rb none
#jira UE-74036
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: ben.marsh
#ROBOMERGE-SOURCE: CL 6455253 in //UE4/Release-4.22/... via CL 6455273
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 6512984 by ben marsh in Dev-VR branch]
Now stores the linker environment block in the live coding manifest, and adds it to the cache before executing the linker.
#rb none
#jira UE-72324
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: ben.marsh
#ROBOMERGE-SOURCE: CL 5740602 in //UE4/Release-4.22/... via CL 5740765
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5744051 by ben marsh in Dev-VR branch]
- This feature allows different chunk layout on different platforms.
- Most mapping work is done in AssetRegistryGenerator.
- Terminology of ChunkID and Pakchunk Index are now separated and they are no longer the same if chunk id to pakchunk index mapping is defined. The ChunkIDs in FAssetData is not renamed to keep consistency, but it actually is pakchunk index. FAssetData.ChunkIDs is used for ChunkInstall.
- Chunks with encryption key guid or unique assetregistry name are not allowed to be mapped. There are code to filter out those chunks and log errors while initializing mapping
- CheckChunkAssetsAreNotInChild() and ResolveChunkDependencyGraph() is skipped when making build for XboxOne and PS4, since they are not needed. If for some reason, we need chunk dependency on console builds, we need to implement per-platform dependency graph, since now we support different chunk layout on different platforms.
- Disabled a few pak file overide rules for console builds, since they should only be applied to builds with Kairos chunk layout.
#test A preflight was kicked and tested on PS4 and XboxOne. No new issue was found.
#rb Daniel.Lamb
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: hongyi.yu
#ROBOMERGE-SOURCE: CL 5470414 via CL 5474050 via CL 5474308
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5506163 by hongyi yu in Dev-VR branch]
* Removed code to invalidate makefiles when adding new source files. UBT should be reliable enough to make this determination itself nowadays, and ignored -invalidatemakefilesonly argument was causing modules to be recompiled.
* Fixed incorrect config section name when determining whether to allow hot reload from IDE. Now prevents hot reload from IDE when live coding is enabled.
* Added error message when trying to add a new class with Live Coding enabled.
* Added error messages when trying to start Live Coding after a hot reload has taken place.
* Added error messages when trying to hot reload with Live Coding enabled.
#jira UE-71253
#rb none
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: ben.marsh
#ROBOMERGE-SOURCE: CL 5403464 in //UE4/Release-4.22/... via CL 5403485
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5412284 by ben marsh in Dev-VR branch]
Allows fast iteration of C++ changes without restarting the application. To use, select the "Live Coding (Experimental)" mode from the drop down menu next to the editor's compile button, or type "LiveCoding" into the console for a monolithic build. Press Ctrl+Alt+F11 to find changes and compile.
Changes vs standalone Live++ version:
* UBT is used to execute builds. This allows standard UE4 adaptive unity mode, allows us to reuse object files when we do regular builds, supports using any build executor allowed by UBT (XGE, SNDBS, etc..).
* Adding new source files is supported.
* Custom visualizer for FNames is supported via a weakly linked symbol in a static library (Engine/Extras/NatvisHelpers).
* Settings are exposed in the editor's project settings dialog.
* Standalone application has been rewritten as a Slate app ("LiveCodingConsole"). There is an additional option to start the program as hidden, where it will not be visible until Ctrl+Alt+F11 is hit. Similarly, closing the window will hide it instead of closing the application.
* Does not require a standalone licensed version of Live++.
Known issues:
* Does not currently support class layout changes / object reinstancing
#rb none
[FYI] Marc.Audy, Stefan.Boberg, Nick.Penwarden
#jira
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: ben.marsh
#ROBOMERGE-SOURCE: CL 5304722 in //UE4/Release-4.22/... via CL 5309051
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5329502 by ben marsh in Dev-VR branch]
Also, in the d3d11 compiler, A description of the different parameters are appended at the end, for information
#rb rolando.caloca chris.bunner
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: jonas.meyer
#ROBOMERGE-SOURCE: CL 5061991 via CL 5062517 via CL 5062687
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5138800 by jonas meyer in Dev-VR branch]
