https://bugs.llvm.org/show_bug.cgi?id=36478
Bug ID: 36478
Summary: Make lld-link.exe detect that the result file is in
use and that linking will fail.
Product: lld
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: unassignedb...@nondot.org
Reporter: p...@google.com
CC: llvm-bugs@lists.llvm.org
When building chrome (and I have chrome.exe running), linking completes and
fails when the result is about to be written to disk:
[519/542] LINK(DLL) chrome.dll chrome.dll.lib chrome.dll.pdb
FAILED: chrome.dll chrome.dll.lib chrome.dll.pdb
C:/python_27_amd64/files/python.exe ../../build/toolchain/win/tool_wrapper.py
link-wrapper environment.x86 False
../../third_party/llvm-build/Release+Asserts/bin/lld-link.exe /nologo
/IMPLIB:./chrome.dll.lib /DLL /OUT:./chrome.dll /PDB:./chrome.dll.pdb
@./chrome.dll.rsp
..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe: error: failed to
write the output file: permission denied
[538/542] CXX
obj/chrome/test/browser_tests/better_session_restore_browsertest.obj
Since linking can take minutes it'd be nice if this case could (best-effort) be
caught on startup rather than when all work is done.
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