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libphobos: Increase size of defaultStackPages on OSX X86_64 targets.

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As of macOS 11, libunwind now requires more stack space than 16k, so
default to a larger stack size. This is only applied to X86 as the
PAGESIZE is still 4k, however on AArch64 it is 16k.

libphobos/ChangeLog:

	* libdruntime/core/thread/fiber.d (defaultStackPages): Increase size
	on OSX X86_64 targets.
This commit is contained in:
Iain Buclaw 2021-11-19 14:43:07 +01:00
parent d686cb0d74
commit f316727e5f
1 changed files with 10 additions and 0 deletions
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10
libphobos/libdruntime/core/thread/fiber.d
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@ -595,6 +595,16 @@ class Fiber
// the existence of debug symbols and other conditions. Avoid causing
// stack overflows by defaulting to a larger stack size
enum defaultStackPages = 8;
else version (OSX)
{
version (X86_64)
// libunwind on macOS 11 now requires more stack space than 16k, so
// default to a larger stack size. This is only applied to X86 as
// the PAGESIZE is still 4k, however on AArch64 it is 16k.
enum defaultStackPages = 8;
else
enum defaultStackPages = 4;
}
else
enum defaultStackPages = 4;