diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/runtime/proc.go | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/runtime/proc.go b/src/runtime/proc.go index 408f26cf7a..7189a0650a 100644 --- a/src/runtime/proc.go +++ b/src/runtime/proc.go @@ -543,16 +543,9 @@ func badctxt() { throw("ctxt != 0") } -// crashstack is a space that can be used as the stack when it is -// crashing on bad stack conditions, e.g. morestack on g0. -// gcrash is the corresponding (fake) g. -var crashstack [16384]byte - -var gcrash = g{ - stack: stack{uintptr(unsafe.Pointer(&crashstack)), uintptr(unsafe.Pointer(&crashstack)) + unsafe.Sizeof(crashstack)}, - stackguard0: uintptr(unsafe.Pointer(&crashstack)) + 1000, - stackguard1: uintptr(unsafe.Pointer(&crashstack)) + 1000, -} +// gcrash is a fake g that can be used when crashing due to bad +// stack conditions. +var gcrash g var crashingG atomic.Pointer[g] @@ -803,6 +796,12 @@ func schedinit() { parsedebugvars() gcinit() + // Allocate stack space that can be used when crashing due to bad stack + // conditions, e.g. morestack on g0. + gcrash.stack = stackalloc(16384) + gcrash.stackguard0 = gcrash.stack.lo + 1000 + gcrash.stackguard1 = gcrash.stack.lo + 1000 + // if disableMemoryProfiling is set, update MemProfileRate to 0 to turn off memprofile. // Note: parsedebugvars may update MemProfileRate, but when disableMemoryProfiling is // set to true by the linker, it means that nothing is consuming the profile, it is |