6558595ca3
When merging `.bss` into a code section (e.g., `/MERGE:.bss=.text`), the INT3 gap-filling loop in `writeSections()` would write past the output buffer. This happens because `.bss` chunks have `hasData=false`, so they contribute to `VirtualSize` but not `SizeOfRawData`. The loop was using chunk RVAs without checking if they exceeded the raw data region. This caused a crash on Windows with `/FILEALIGN:1` (access violation 0xC0000005). The tight alignment leaves no slack in the mapped buffer, so the overflow immediately hits unmapped memory. The fix bounds all memset operations to `rawSize` and exits early when encountering chunks beyond the raw data boundary. Fixes #180406
LLVM Linker (lld)
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
Benchmarking
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.