https://bugs.llvm.org/show_bug.cgi?id=45111
Bug ID: 45111
Summary: lld creates `.00cfg` and `.voltbl` sections, link.exe
doesn't
Product: lld
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: COFF
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
The issue is easy to reproduce using the latest clang from
https://llvm.org/builds/ (Git commit 2663a25f, 3 February 2020).
1. Create test.cpp with these contents:
#include <stdio.h>
int wmain(int argc, wchar_t* argv[])
{
printf("Hello, world!");
return 0;
}
2. Compile it and link using lld:
clang -std=c++17 -m32 -fuse-ld=lld -Oz
-Wl,-subsystem:console,-merge:.rdata=.text,-out:test1.exe test.cpp
3. Compile it and link using default link.exe:
clang -std=c++17 -m32 -Oz
-Wl,-subsystem:console,-merge:.rdata=.text,-out:test2.exe test.cpp
4. Compare section lists of the `test1.exe` and `test2.exe`. The `test1.exe`
(linked by lld) does have `.00cfg` and `.voltbl` sections; the `test2.exe`
(linked by default linker, link.exe I suppose) doesn't have these sections.
Repro files (with all the libraries) are here:
http://veg.by/files/temp/lld_00cfg_repro.7z
It seems that these sections come from standard VC++ and Windows SDK libraries.
I guess that it is expected that lld should behave like link.exe. So, probably
it is worth to investigate what causes this difference.
--
You are receiving this mail because:
You are on the CC list for the bug._______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
