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Reduce number of jump-stubs on ARM64 via smaller preserved space #63842

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EgorBo wants to merge 4 commits into from
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Reduce number of jump-stubs on ARM64 via smaller preserved space #63842

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90e4d8e
Change CoreClrLibrarySize and MaxExecutableMemorySize on arm
EgorBo Jan 16, 2022
6e809fe
Smaller MaxExecutableMemorySize on arm64
EgorBo Jan 16, 2022
44ac2bc
Address feedback
EgorBo Jan 16, 2022
dc7ec53
Update executableallocator.cpp
EgorBo Jan 17, 2022
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Update executableallocator.cpp
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@EgorBo
EgorBo authored Jan 17, 2022
commit dc7ec5300b5c599c8dbf3c8ddc78ff13c7289106
5 changes: 0 additions & 5 deletions src/coreclr/utilcode/executableallocator.cpp
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Expand Up @@ -66,12 +66,7 @@ void ExecutableAllocator::InitLazyPreferredRange(size_t base, size_t size, int r
// to coreclr.dll. This avoids having to create jump stubs for calls to
// helpers and R2R images loaded close to coreclr.dll.
//
#ifdef TARGET_XARCH
SIZE_T reach = 0x7FFF0000u;
#else
// Smaller size for ARM64 where relative calls/jumps only work within 128MB
SIZE_T reach = 0x7FF0000u;
#endif

// We will choose the preferred code region based on the address of coreclr.dll. The JIT helpers
// in coreclr.dll are the most heavily called functions.
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