JIT services: Difference between revisions

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This essentially does state/object init and maps the CodeMemory regions in the user-process. The permissions for the first CodeMemory is R-X, for the second CodeMemory it's R--. Both CodeMemory are mapped in the sysmodule with permissions RW-.

Both CodeMemory are ~~intended to be~~ optional, ~~however really both are required~~.

Both CodeMemory are optional. Handling for size=0 was originally broken, this was [[Switch_System_Flaws|fixed]] with [14.0.0+].

This copies the user-process CodeMemory addr/size for each CodeMemory to elsewhere in state, however it uses the first CodeMemory for the second CodeMemory state init as well. This is the same state used by [[#GenerateCode]] and [[#GetCodeAddress]].

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No input, returns two output u64s which are loaded from state.

These u64s are the user-process map-addrs for each CodeMemory from [[#CreateJitEnvironment|state]].

These u64s are the user-process map-addrs for each CodeMemory from [[#CreateJitEnvironment|state]]. Originally the second addr was a duplicate of the first addr, this was [[Switch_System_Flaws|fixed]] with [14.0.0+].

== CodeRange ==

@@ Line 27: / Line 27: @@
 This essentially does state/object init and maps the CodeMemory regions in the user-process. The permissions for the first CodeMemory is R-X, for the second CodeMemory it's R--. Both CodeMemory are mapped in the sysmodule with permissions RW-.
-Both CodeMemory are intended to be optional, however really both are required.
+Both CodeMemory are optional. Handling for size=0 was originally broken, this was [[Switch_System_Flaws|fixed]] with [14.0.0+].
 This copies the user-process CodeMemory addr/size for each CodeMemory to elsewhere in state, however it uses the first CodeMemory for the second CodeMemory state init as well. This is the same state used by [[#GenerateCode]] and [[#GetCodeAddress]].
@@ Line 101: / Line 101: @@
 No input, returns two output u64s which are loaded from state.
-These u64s are the user-process map-addrs for each CodeMemory from [[#CreateJitEnvironment|state]].
+These u64s are the user-process map-addrs for each CodeMemory from [[#CreateJitEnvironment|state]]. Originally the second addr was a duplicate of the first addr, this was [[Switch_System_Flaws|fixed]] with [14.0.0+].
 == CodeRange ==