diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/system/gc.nim | 14 | ||||
| -rw-r--r-- | lib/system/gc2.nim | 14 |
2 files changed, 26 insertions, 2 deletions
diff --git a/lib/system/gc.nim b/lib/system/gc.nim index 4f461b5c3..5c2170a17 100644 --- a/lib/system/gc.nim +++ b/lib/system/gc.nim @@ -980,7 +980,19 @@ when withRealTime: collectCTBody(gch) release(gch) - proc GC_step*(us: int, strongAdvice = false) = GC_step(gch, us, strongAdvice) + proc GC_step*(us: int, strongAdvice = false, stackSize = -1) {.noinline.} = + var stackTop {.volatile.}: pointer + let prevStackBottom = gch.stackBottom + if stackSize >= 0: + stackTop = addr(stackTop) + when stackIncreases: + gch.stackBottom = cast[pointer]( + cast[ByteAddress](stackTop) - sizeof(pointer) * 6 - stackSize) + else: + gch.stackBottom = cast[pointer]( + cast[ByteAddress](stackTop) + sizeof(pointer) * 6 + stackSize) + GC_step(gch, us, strongAdvice) + gch.stackBottom = prevStackBottom when not defined(useNimRtl): proc GC_disable() = diff --git a/lib/system/gc2.nim b/lib/system/gc2.nim index 6c44d509e..7d54c07be 100644 --- a/lib/system/gc2.nim +++ b/lib/system/gc2.nim @@ -956,7 +956,19 @@ when withRealTime: strongAdvice: collectCTBody(gch) - proc GC_step*(us: int, strongAdvice = false) = GC_step(gch, us, strongAdvice) + proc GC_step*(us: int, strongAdvice = false, stackSize = -1) {.noinline.} = + var stackTop {.volatile.}: pointer + let prevStackBottom = gch.stackBottom + if stackSize >= 0: + stackTop = addr(stackTop) + when stackIncreases: + gch.stackBottom = cast[pointer]( + cast[ByteAddress](stackTop) - sizeof(pointer) * 6 - stackSize) + else: + gch.stackBottom = cast[pointer]( + cast[ByteAddress](stackTop) + sizeof(pointer) * 6 + stackSize) + GC_step(gch, us, strongAdvice) + gch.stackBottom = prevStackBottom when not defined(useNimRtl): proc GC_disable() = |