diff options
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/malloc.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go index da39dac510..37e6b4b2ef 100644 --- a/src/runtime/malloc.go +++ b/src/runtime/malloc.go @@ -148,7 +148,11 @@ const ( _MHeapMap_TotalBits = (_64bit*sys.GoosWindows)*35 + (_64bit*(1-sys.GoosWindows)*(1-sys.GoosDarwin*sys.GoarchArm64))*39 + sys.GoosDarwin*sys.GoarchArm64*31 + (1-_64bit)*(32-(sys.GoarchMips+sys.GoarchMipsle)) _MHeapMap_Bits = _MHeapMap_TotalBits - _PageShift - _MaxMem = uintptr(1<<_MHeapMap_TotalBits - 1) + // _MaxMem is the maximum heap arena size minus 1. + // + // On 32-bit, this is also the maximum heap pointer value, + // since the arena starts at address 0. + _MaxMem = 1<<_MHeapMap_TotalBits - 1 // Max number of threads to run garbage collection. // 2, 3, and 4 are all plausible maximums depending |