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UserspaceEmulator: Don't set the MmapRegion malloc-block bit too early

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We were setting it before the malloc metadata had been instantiated.

Fixes #5707.
This commit is contained in:
Andreas Kling
2021-03-09 13:57:17 +01:00
parent 1381720d1d
commit 57142a29a0
Notes: sideshowbarker 2024-07-18 21:34:51 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/57142a29a0a
1 changed files with 0 additions and 3 deletions
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3
Userland/DevTools/UserspaceEmulator/MallocTracer.cpp
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@@ -64,9 +64,6 @@ void MallocTracer::target_did_malloc(Badge<Emulator>, FlatPtr address, size_t si
VERIFY(is<MmapRegion>(*region));
auto& mmap_region = static_cast<MmapRegion&>(*region);
// Mark the containing mmap region as a malloc block!
mmap_region.set_malloc(true);
auto* shadow_bits = mmap_region.shadow_data() + address - mmap_region.base();
memset(shadow_bits, 0, size);