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Nintendo switch support (#8069)

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* Add config section for Nintendo Switch
* Add compiler configuration for Nintendo Switch and it's CPU
* Add specific lib code for Nintendo Switch
* Add GC support for Nintendo Switch
* Update changelog for Nintendo Switch
* Update changelog with more info about fixed paths
* Cleaned up GC memory management a bit
* Relocate docs for Switch
* Rename aarch64NoneElfGcc to nintendoSwitchGCC
* Remove armv8a57
* Fix installer.ini
* Reuse code in linux and amd64
* Add posix defs for nintendo switch
* Add more defined sections for nintendo switch
* Remove old comment
* Add what's not supported for Nintendo Switch docs
* Make nintendoswitch == posix
* Remove DEVKITPRO references from nim.cfg
* Make PR extccomp changes
* Remove Result type alias
* Add separate switch consts file
* Update docs for nintendo switch
* Fix travis errors with undefined consts and add correct wait.h procs
This commit is contained in:
Joey 2018-06-27 19:35:09 +09:00 • committed by Andreas Rumpf
commit 559a7615ad
21 changed files with 1352 additions and 43 deletions
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37
lib/system/osalloc.nim
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@ -80,6 +80,43 @@ when defined(emscripten):
elif defined(genode):
include genode/alloc # osAllocPages, osTryAllocPages, osDeallocPages
elif defined(nintendoswitch):
import nintendoswitch/switch_memory
var
stack: pointer
proc alignSize(size: int): int =
(size + 0x00000FFF) and not 0x00000FFF
proc freeMem(p: pointer, msize: int) =
let size = alignSize(msize)
discard svcUnmapMemory(p, stack, size.uint64)
virtmemFreeMap(p, size.csize)
free(stack)
proc osAllocPages(msize: int): pointer {.inline.} =
let size = alignSize(msize)
stack = memalign(0x1000, size)
result = virtmemReserveMap(size.csize)
let rc = svcMapMemory(result, stack, size.uint64)
if rc.uint32 != 0:
freeMem(result, size)
raiseOutOfMem()
proc osTryAllocPages(msize: int): pointer {.inline.} =
let size = alignSize(msize)
stack = memalign(0x1000, size)
result = virtmemReserveMap(size.csize)
let rc = svcMapMemory(result, stack, size.uint64)
if rc.uint32 != 0:
freeMem(result, size)
result = nil
proc osDeallocPages(p: pointer, size: int) {.inline.} =
when reallyOsDealloc:
freeMem(p, size)
elif defined(posix):
const
PROT_READ = 1 # page can be read