diff options
Diffstat (limited to 'compiler/ccgthreadvars.nim')
| -rwxr-xr-x | compiler/ccgthreadvars.nim | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/compiler/ccgthreadvars.nim b/compiler/ccgthreadvars.nim index 7ef084ba8..0f3661010 100755 --- a/compiler/ccgthreadvars.nim +++ b/compiler/ccgthreadvars.nim @@ -8,7 +8,7 @@ # ## Thread var support for crappy architectures that lack native support for -## thread local storage. +## thread local storage. (**Thank you Mac OS X!**) proc emulatedThreadVars(): bool {.inline.} = result = optThreads in gGlobalOptions @@ -23,9 +23,17 @@ proc AccessThreadLocalVar(p: BProc, s: PSym) = appcg(p, cpsInit, "NimTV=(NimThreadVars*)#GetThreadLocalVars();$n") var - nimtv: PRope # nimrod thread vars - nimtvDeps: seq[PType] = @[] - nimtvDeclared = initIntSet() + nimtv: PRope # nimrod thread vars; the struct body + nimtvDeps: seq[PType] = @[] # type deps: every module needs whole struct + nimtvDeclared = initIntSet() # so that every var/field exists only once + # in the struct + +# 'nimtv' is incredibly hard to modularize! Best effort is to store all thread +# vars in a ROD section and with their type deps and load them +# unconditionally... + +# nimtvDeps is VERY hard to cache because it's not a list of IDs nor can it be +# made to be one. proc declareThreadVar(m: BModule, s: PSym, isExtern: bool) = if emulatedThreadVars(): |