Differential Revision: http://reviews.llvm.org/D19490

llvm-svn: 267637

This lets Writer.cpp know that they are got relative, which will allow
further simplifications.

llvm-svn: 267613

Every caller was doing it.

llvm-svn: 267603

llvm-svn: 267602

When --reproduce <path> is given, then we need to concatenate input
file paths to the given path to save input files to the directory.
Previously, path concatenation didn't handle Windows drive letters
so it could generate invalid paths such as "C:\D:\foo". It also didn't
handle ".." path components, so it could produce some bad paths
such as "foo/../../etc/passwd".

In this patch, Windows drive letters and ".." are removed before
concatenating paths.

Differential Revision: http://reviews.llvm.org/D19551

llvm-svn: 267600

We were only doing it for .so and --export-dynamic, but those are not
the only ways a symbol ends up in the dynamic symbol table.

Problem diagnostic and earlier patch version by Peter Collingbourne.

llvm-svn: 267568

Differential Revision: http://reviews.llvm.org/D19517

llvm-svn: 267566

This matches the behavior of both gold and bfd.

llvm-svn: 267558

This remove a fixme, cleans up the weak undef interaction with archives and
lets us keep weak undefs still weak if they resolve to shared.

llvm-svn: 267555

llvm-svn: 267523

--reproduce dumps the object files in a directory chosen
(preserving the file system layout) and the linker invocation
so that people can create an archive and upload for debugging.

Differential Revision:  http://reviews.llvm.org/D19494

llvm-svn: 267497

MIPS is the only target requires GOT header. We already have MIPS
specific code in the `GotSection` class, so move MIPS GOT header
generation there and delete redundant stuff like `GotHeaderEntriesNum`
field and `writeGotHeader` method.

Differential Revision: http://reviews.llvm.org/D19465

llvm-svn: 267460

llvm-svn: 267409

llvm-svn: 267396

llvm-svn: 267394

llvm-svn: 267391

Patch adds support of <,>,!=,==,>=,<= operators.

Differential revision: http://reviews.llvm.org/D19419

llvm-svn: 267382

llvm-svn: 267381

It turns out it's actually needed.

llvm-svn: 267358

llvm-svn: 267333

Add a test for -Bsymbolic + undefined symbols.

llvm-svn: 267323

llvm-svn: 267315

Fixes check-llvm when bootstrapping.

Also remove mostly dead and most likely incorrect logic regarding preemption
of weak undefined symbols.

llvm-svn: 267314

llvm-svn: 267261

llvm-svn: 267260

llvm-svn: 267259

Previously, we have re-implemented utility functions such as `expect`
or `next` in LinkerScript.cpp. This patch reuses the existing
implementation that is in ScriptParser.cpp.

llvm-svn: 267255

ScriptParserBase class is a container of collection of various methods
to parse linker script-ish text. It had a virtual method `run` to run
the parser. But we don't have to enforce its descendents to implement
that. It's up to them.

This patch removes pure virtual function `run`.

llvm-svn: 267246

llvm-svn: 267245

The fix is to handle local symbols referring to SHF_MERGE sections.

Original message:

GC entries of SHF_MERGE sections.

It is a fairly direct extension of the gc algorithm. For merge sections
instead of remembering just a live bit, we remember which offsets
were used.

This reduces the .rodata sections in chromium from 9648861 to 9477472
bytes.

llvm-svn: 267233

This patch is to remove -lto-no-discard-value-names flag and
instead to use -save-temps as we discussed in the post-commit
review thread for r267020.

Differential Revision: http://reviews.llvm.org/D19437

llvm-svn: 267230

llvm-svn: 267222

llvm-svn: 267221

llvm-svn: 267219

llvm-svn: 267218

Now it is doable because LinkerScript is a template class.

llvm-svn: 267212

This patch only implements support for version scripts of the form:
  { [ global: symbol1; symbol2; [...]; symbolN; ] local: *; };
No wildcards are supported, other than for the local entry. Symbol versioning
is also not supported.

It works by introducing a new Symbol flag which tracks whether a symbol
appears in the global section of a version script.

This patch also simplifies the logic in SymbolBody::isPreemptible(), and
teaches it to handle the case where symbols with default visibility in DSOs
do not appear in the dynamic symbol table because of a version script.

Fixes PR27482.

Differential Revision: http://reviews.llvm.org/D19430

llvm-svn: 267208

llvm-svn: 267201

llvm-svn: 267200

llvm-svn: 267195