Replace OutputSection *Cmd to OutputSection *OS. The Commands vector was
moved to OutputSection but the names of the variables were not. This patch
changes the names to match.

Differential Revision: https://reviews.llvm.org/D37627

llvm-svn: 313015

This fixes two more cases where we were aligning the offset in a
section, instead of the final address.

llvm-svn: 312983

llvm-svn: 312981

When given

foobar = ALIGN(., 0x100);

my expectation from what the manual says is that the final address of
foobar will be aligned. It seems that bfd aligns the offset in the
section, which causes some odd results if the section is not 0x100
aligned. Gold aligns the address.

This changes lld to align the final address.

llvm-svn: 312979

llvm-svn: 312976

llvm-svn: 312974

/natvis is a new command line option introduced by MSVC 2017.
We eventually have to support it, but for now, let's ignore it so that
we can at least link stuff instead of printing out an error.

Patch by Michael Rickert.

llvm-svn: 312966

llvm-svn: 312964

llvm-svn: 312963

llvm-svn: 312962

llvm-svn: 312961

We do not use "Shim" as a name of MinGW driver, so rename it MinGW.
I don't think the former dependency list was correct. MinGW driver
depends on COFF.

llvm-svn: 312960

This adds support for passing LTO flags to the MINGW driver
in GNU LD style i.e. -mllvm flag -> /mllvm:flag

Reviewers: ruiu, mstorsjo

Differential Revision: https://reviews.llvm.org/D37712

llvm-svn: 312956

This patch also rename OPT_outlib OPT_out_implib for consistency.

llvm-svn: 312949

If the sysroot parameter is passed to the clang frontend, clang
already uses it to find libraries and adds -L options for it, but
also passes it on to the linker. Therefore we can get pretty far
by just ignoring it altogether.

Differential Revision: https://reviews.llvm.org/D37707

llvm-svn: 312945

Pass the -verbose option through to the COFF linker, and show the
arguments passed to it. If the -### option is specified, just show
the produced argument list and exit, just like in clang.

Replace the first argument with "lld-link" in order to produce a
correct command line.

Differential Revision: https://reviews.llvm.org/D37706

llvm-svn: 312944

Summary:
In addition to removing a few global variables and functions, I believe
this patch improves code readability a bit in general.

Reviewers: mstorsjo, martell

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37699

llvm-svn: 312940

Tests for MinGW shouldn't depend on files under test/COFF/Inputs.

llvm-svn: 312931

When building COFF programs many targets such as mingw prefer
to have a gnu ld frontend. Rather then having a fully fledged
standalone driver we wrap a shim around the LINK driver.

Extra tests were provided by mstorsjo

Reviewers: mstorsjo, ruiu

Differential Revision: https://reviews.llvm.org/D33880

llvm-svn: 312926

'@' is a valid character in file paths, but the linker script tokenizer treats it
as a separate token. This was leading to an unexpected test failure, on our local
builds. This patch changes the test to quote the path to prevent this happening.

An alternative would have been to add '@' to the list of "unquoted tokens" in
ScriptLexer.cpp, but ld.bfd has the same behaviour as the current LLD.

Reviewers: ruiu

Differential Revision: https://reviews.llvm.org/D37689

llvm-svn: 312922

llvm-svn: 312823

llvm-svn: 312820

llvm-svn: 312812

We handled all undefined symbols before this.

llvm-svn: 312808

llvm-svn: 312807

This allows combining --dynamic-list and version scripts too. The
version script controls which symbols are visible, and
--dynamic-list controls which of those are preemptible.

Unlike previous versions, undefined symbols are still considered
preemptible, which was the issue breaking the cfi tests.

This fixes pr34053.

llvm-svn: 312806

to separate commons based on file name patterns. The following linker script
construct does not work because commons are allocated before section placement
is done and the only synthesized BssSection that holds all commons has no file
associated with it:
SECTIONS { .common_0 : { *file0.o(COMMON) }}

This patch changes the allocation of commons to create a section per common
symbol and let the section logic do the layout.

Differential revision: https://reviews.llvm.org/D37489

llvm-svn: 312796

llvm-svn: 312789

llvm-svn: 312787

There is no need to check anything excepr that
symbol is not in output.
Previously additional iformation like symbol values
or flags were checked, that was not correct.
For example if we would provide symbol with different
value/visibility/type for case when should not provide 
symbol at all, testcase would not fail.

llvm-svn: 312779

REGION_ALIAS(alias, region)

Alias names can be added to existing memory regions created with
the MEMORY command. Each name corresponds to at most one
memory region.

Differential revision: https://reviews.llvm.org/D37477

llvm-svn: 312777

This reverts commit r312757.

Evgenii Stepanov reports that it broke some tests.

llvm-svn: 312771

Differential Revision: https://reviews.llvm.org/D37607

llvm-svn: 312770

llvm-svn: 312765

llvm-svn: 312763

llvm-svn: 312762

If --dynamic-list is given, only those symbols are preemptible.

This allows combining --dynamic-list and version scripts too. The
version script controls which symbols are visible, and --dynamic-list
controls which of those are preemptible.

This fixes pr34053.

llvm-svn: 312757

llvm-svn: 312753

It is possible for two modules to have the same name if they are
archive members with the same name, or if we are doing LTO (in which
case all modules will have the name "lto.tmp").

Differential Revision: https://reviews.llvm.org/D37589

llvm-svn: 312744

The performance problem with --threads is fixed.

llvm-svn: 312738