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Return NULL for mmap fail case on Unix #78069

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Merged
janvorli merged 7 commits into from
Nov 10, 2022
Merged

Return NULL for mmap fail case on Unix #78069

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9a8a047
Return NULL for mmap fail case on Unix
wscho77 Nov 8, 2022
8eb5724
call memset when mmap succeeds
wscho77 Nov 8, 2022
3b75352
check MAP_FAILED instead of NULL
wscho77 Nov 8, 2022
c50ee0e
return false for failing mmap
wscho77 Nov 9, 2022
d9d1f0a
Call g_fatalErrorHandler if releasing failed
wscho77 Nov 9, 2022
936acd6
Update src/coreclr/utilcode/executableallocator.cpp
wscho77 Nov 9, 2022
3e1850c
Fix wrong condition check
wscho77 Nov 9, 2022
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Call g_fatalErrorHandler if releasing failed
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@wscho77
wscho77 committed Nov 9, 2022
commit d9d1f0a145b4a120aae3207468d55c9cc196baf6
5 changes: 4 additions & 1 deletion src/coreclr/utilcode/executableallocator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -453,7 +453,10 @@ void ExecutableAllocator::Release(void* pRX)

if (pBlock != NULL)
{
VMToOSInterface::ReleaseDoubleMappedMemory(m_doubleMemoryMapperHandle, pRX, pBlock->offset, pBlock->size);
if (VMToOSInterface::ReleaseDoubleMappedMemory(m_doubleMemoryMapperHandle, pRX, pBlock->offset, pBlock->size) == false)
{
g_fatalErrorHandler(COR_E_EXECUTIONENGINE, W("Releasing the double mapped memory failed"));
}
// Put the released block into the free block list
pBlock->baseRX = NULL;
pBlock->next = m_pFirstFreeBlockRX;
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