llvm-svn: 313188

Arg instances can be claimed. After claimed, its `isClaimed` function
returns true. We do not use that notion in lld, so using NoClaim
versions of functions is just confusing. This patch is to just use
hasArg instead of hasArgNoClaim.

llvm-svn: 313187

llvm-svn: 313184

There are no alises handled by this switch, but getUnaliasesdOption is
preferred way of doing this. This is also consistent with ELF and COFF.

llvm-svn: 313180

llvm-svn: 313178

This is how the flag is documented in GNU binutils ld; -Bstatic
only applies to -l options after it, until the next -Bdynamic.

Differential Revision: https://reviews.llvm.org/D37794

llvm-svn: 313175

In MinGW configurations (GCC, or clang with a *-windows-gnu target),
the -export directives in the object file contains the undecorated
symbol name, while it is decorated in MSVC configurations. (On the
command line, link.exe takes an undecorated symbol name for the
-export argument though.)

Differential Revision: https://reviews.llvm.org/D37772

llvm-svn: 313174

This reduces the size of SharedSymbol which in turn reduces the size
of Symbol from 88 to 80 bytes.

llvm-svn: 313154

llvm-svn: 313129

There is no need to scan over all input sections for relocatable output.
As we do not process or scan relocations anyways.
Patch moves check for Config->Relocatable out to avoid that and also removes
excessive check for isa<EhInputSection> from first for loop. 
It is excessive because we handle all of them in a second for loop below.
That all allowed to simplify code.

Differential revision: https://reviews.llvm.org/D37746

llvm-svn: 313127

Differential Revision: https://reviews.llvm.org/D37761

llvm-svn: 313125

Differential Revision: https://reviews.llvm.org/D37769

llvm-svn: 313124

This fixes PR31824.

Differential Revision: https://reviews.llvm.org/D37709

llvm-svn: 313123

This should fix the lto bootstrap.

It is somewhat hard to remember about lazy symbols deep down in the
link. It might be worth it replacing them with undefined symbols once
we are done adding files.

llvm-svn: 313103

llvm-svn: 313095

llvm-svn: 313094

https://reviews.llvm.org/rL312796 meant that references to garbage collected common symbols would cause a segfault.

This change fixes the behaviour for references to stripped common symbols.

Differential Revision: https://reviews.llvm.org/D37718

llvm-svn: 313086

It is not needed since it is always 0.

llvm-svn: 313076

On i386, the --entry parameter to GNU ld is supposed to be a decorated
symbol name, while it is an undecorated name in link.exe.

Differential Revision: https://reviews.llvm.org/D37710

llvm-svn: 313066

llvm-svn: 313051

Given our representation of symbols as section + offset, we can
finalize symbols like _end as soon as the section is known.

llvm-svn: 313048

Differential Revision: https://reviews.llvm.org/D37708

llvm-svn: 313045

For now LLD does not setup the least-significant bit for microMIPS
symbols. llvm-objdump does not like that. In attempt to fix
sanitizer-x86_64-linux-fast build-bot let's temporarily check the raw
binary file content.

llvm-svn: 313040

The patch implements initial support of microMIPS code linking:
  - Handle microMIPS specific relocations.
  - Emit both R1-R5 and R6 microMIPS PLT records.

For now linking mixed set of regular and microMIPS object files is not
supported. Also the patch does not handle (setup and clear) the
least-significant bit of an address which is utilized as the ISA mode
bit and allows to make jump between regular and microMIPS code without
any thunks.

Differential revision: https://reviews.llvm.org/D37335

llvm-svn: 313028

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