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Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix...
Jeffrey Lee authored 
Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.

Detail:
  s/MemInfo - Added an implementation of ROL's OS_Memory 24 call. Unlike the old OS_ValidateAddress call, this call should successfully report the presence of all memory areas known to the kernel. It should also correctly indicate which parts of a sparse DA are mapped in, unlike the old OS_ValidateAddress implementation.
  s/ChangeDyn - Update dynamic area handling to construct a lookup table for mapping logical addresses to dynamic areas; this is used by OS_Memory 24 to quickly locate which DA(s) hit a given region
  s/AMBControl/main - Make sure lazy task swapping is marked as disabled when AMB_LazyMapIn is {FALSE} - required so that OS_Memory 24 will give application space the correct flags
  s/ArthurSWIs - Switch OS_ValidateAddress over to using OS_Memory 24, as per ROL. For compatibility, Service_ValidateAddress is still issued for any areas which the kernel doesn't recognise (currently, OS_Memory 24 doesn't issue any service calls itself)
  s/Convrsions - ADR -> ADRL to keep things happy
  s/HAL - Fix L2PT page allocation and RAM clear to release the physical access region once they're done with it
  s/Kernel - Make the error dispatcher validate the error handler code ptr & error buffer using OS_Memory 24 before attempting to use them. If they look bad, reset to default. Should prevent getting stuck in an infinite abort loop in some situations (e.g. as was the case with ticket 279). The system might not fully recover, but it's better than a hard crash.
  s/Middle - Rework data/prefetch/etc. abort handlers so that DumpyTheRegisters can validate the exception dump area via OS_Memory 24 before anything gets written to it. Should also help to prevent some infinite abort loops. Strip 26bit/pre-HAL code to make things a bit more readable.
  hdr/KernelWS - Update comment
Admin:
  Tested on BB-xM, Raspberry Pi


Version 5.35, 4.79.2.222. Tagged as 'Kernel-5_35-4_79_2_222'
03d3b37a
Name Last commit Last update
..
AMBControl Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
PMF Change handling of GraphicsV_StartupMode. Fix OS_CheckModeValid for variable framestore case.
vdu Change handling of GraphicsV_StartupMode. Fix OS_CheckModeValid for variable framestore case.
ARM600 Fix corrupt L2PT page flags being generated on Iyonix
ARMops Fix corrupt L2PT page flags being generated on Iyonix
Arthur2 Conversions rationalisation.
Arthur3 Review of Internation switch
ArthurSWIs Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
ChangeDyn Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
Convrsions Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
End Commit of kernel as featured in release 5.00.
ExtraSWIs Add zero page relocation support
FlashROM 32-bit Kernel.
GetAll Assorted GraphicsV improvements
HAL Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
HeapMan Sort out SetBorder
HeapSort Add compressed ROM support. Make more use of ARMv5+ instructions. Other misc tweaks.
KbdResA1 32-bit Kernel.
KbdResPC Add zero page relocation support
KbdResRCMM Reimplement enhancements to kernel Dynamic Area support from
Kernel Add OS_Memory 24 implementation. Change OS_ValidateAddress to use it. Fix kernel leaving the physical access MB in a messy state. Try and protect against infinite abort loops caused by bad environment handlers.
LibKern More HAL work. IOMD HAL work in progress. Lots of my own little build scripts. Don't touch this.
MEMC1 Import from cleaned 360 CD
MEMC2 Import from cleaned 360 CD
MOSDict Import from cleaned 360 CD
MemInfo
Middle
ModHand
MoreComms
MoreSWIs
Morris
MsgCode
NewIRQs
NewReset
Oscli
SWINaming
Super1
SysComms
TickEvents
UnSqueeze
Utility
VMSAv6