Backport Do not feed &"" to D3DCompile (#5812) to 0.20 #5831
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A recent change by rustc, now in 1.79-stable, makes empty str constants point to the same location: 0x01. This is an optimization of sorts, not stable behavior. Code must not rely on constants having stable addresses nor should it pass &"" to APIs expecting CStrs or NULL addresses. D3DCompile will segfault if you give it such a pointer, or worse: read random garbage addresses! Pass the NULL pointer to D3DCompile if wgpu lacks a decent CString. refs: - https://learn.microsoft.com/en-us/windows/win32/api/d3dcompiler/nf-d3dcompiler-d3dcompile Co-authored-by: Jan Hohenheim <[email protected]> Co-authored-by: Brezak <[email protected]>
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Ah, I just saw that @Elabajaba is on this right now, so feel free to close this with no further explanation. Sorry for the spam! |
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Whoops, didn't notice this when I opened mine. I'll close mine for 0.20. |
6 tasks
teoxoy
changed the title
ErichDonGubler
approved these changes
Jun 18, 2024
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Just awaiting release (CC @cwfitzgerald). |
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Is there an estimate of when/if the next 0.20.x release will be out? |
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Oh, sorry, I just noticed #5850, never mind then. |
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This is #5812 backported to the
v0.20branch.