[PATCH] D77006: [lld-macho] Support reading of universal binaries
Fangrui Song via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 28 23:10:50 PDT 2020
MaskRay added inline comments.
================
Comment at: lld/test/MachO/fat-arch.s:10
+# RUN: FileCheck %s -DFILE=%t.noarch.o
+# CHECK: Unable to find matching architecture in [[FILE]]
+# CHECK: undefined symbol: _main
----------------
int3 wrote:
> smeenai wrote:
> > MaskRay wrote:
> > > Add more context the the diagnostics, probably `error: `
> > >
> > > It is also a convention to not capitalize the diagnostics, see clang, ld.lld and binutils/LLVM binary utilities' output.
> > I believe ld64 treats this scenario as a warning, not an error. I wouldn't mind us treating this as an error (at least until we get more experience with the new linker and whether that's reasonable behavior), because in my experience, a mistake like this usually leads to undefined symbols in your link anyway, and it's less confusing if you get an error about the issue right away.
> > Add more context the the diagnostics, probably error:
>
> `lld/Common/ErrorHandler.h` always prints out ANSI color markers around its `warning:` and `error:` prefixes. We could use regexes to ignore the colors I guess but it's kind of ugly...
>
> I'll make it an error.
No. Color code sequences are not emitted when stderr is connected to a regular file/pipe instead of a pty.
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https://reviews.llvm.org/D77006/new/
https://reviews.llvm.org/D77006
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