Previously, each subclass of SymbolBody had a pointer to a source
file from which it was created. So, there was no single way to get
a source file for a symbol. We had getSourceFile<ELFT>(), but the
function was a bit inconvenient as it's a template.

This patch makes SymbolBody have a pointer to a source file.
If a symbol is not created from a file, the pointer has a nullptr.

llvm-svn: 275701

llvm-svn: 275695

llvm-svn: 275694

llvm-svn: 275693

llvm-svn: 275692

BSD toolchain contains a bug:
https://sourceforge.net/p/elftoolchain/tickets/491/

In short demangler works differently, fix was to update the testcase.
It should fix the FreeBSD bot failture:
http://lab.llvm.org:8011/builders/lld-x86_64-freebsd/builds/19432/steps/test_lld/logs/stdio

Original commit message was:
[ELF] - Implement extern "c++" version script tag

Patch implements 'extern' version script tag.
Currently only values in quotes(") are supported.

Matching of externs is performed in the same pass as exact match of globals.

Differential revision: http://reviews.llvm.org/D21930

llvm-svn: 275682

llvm-svn: 275675

SymbolVersions sounds like it had versions for a symbol, so rename it.

llvm-svn: 275674

The identifier `Version` was used too often in the code to handle
symbol versions. The struct that contains version definitions is
named `Version`. Local variables for version ID are named `Version`.
Local varaible for version string are named `Version`.

This patch give them different names.

llvm-svn: 275673

skip(S) consumes a token if the next token is S,
so it can be used instead of peek() & next().

llvm-svn: 275672

llvm-svn: 275670

llvm-svn: 275669

llvm-svn: 275667

llvm-svn: 275666

Previously, Verdefs and Verdauxs are separated in the section.
The new layout is easier to write as we do not have to maintain
two pointers and can avoid passing a reference to a pointer.

llvm-svn: 275665

llvm-svn: 275660

llvm-svn: 275608

llvm-svn: 275605

llvm-svn: 275549

llvm-svn: 275531

llvm-svn: 275530

llvm-svn: 275528

In a linker script, `.` is a special symbol indicating a counter.
Previously, we had two expression types, ExprKind and SymbolAssignmentKind
for `.` and all the other symbol names, respectively. But we could merge
them because the former is a special case of the latter.

llvm-svn: 275527

Differential Revision: https://reviews.llvm.org/D22396

llvm-svn: 275526

We should write to ErrorOS instead. Normaly, *ErrorOS == errs(),
but they can be different if LLD is embedded.

llvm-svn: 275525

llvm-svn: 275524

llvm-svn: 275523

This patch corresponds to r275511 for COFF.

llvm-svn: 275521

Previously, it checked for the EC parameter and set HasError
only when there was an error. But in most places we called
error only when error had occurred, so this behavior was confusing.

llvm-svn: 275517

llvm-svn: 275477

llvm-svn: 275447

Differential Revision: http://reviews.llvm.org/D22323

llvm-svn: 275446

llvm-svn: 275385

llvm-svn: 275383

ELF spec says that alignment of 0 is equivalent to 1.
Previously, we arbitrary set to 0 or 1, but always setting to 1
makes our program simpler.

llvm-svn: 275374

r275301 made .got section be aligned on Target->GotEntrySize,
so GotEntrySize must have been initialized. We didn't initialize
it for AMDGPU.

llvm-svn: 275373

llvm-svn: 275362

Patch by H.J Lu.

For x86-64 psABI, the entry size of .got and .got.plt sections is 8
bytes for both LP64 and ILP32.  Add GotEntrySize and GotPltEntrySize
to ELF target instead of using size of ELFT::uint.  Now we can generate
a simple working x32 executable.

Differential Revision: http://reviews.llvm.org/D22288

llvm-svn: 275301

Config members are named after corresponding command line options.
This patch renames VAStart ImageBase so that they are in line with
--image-base.

Differential Revision: http://reviews.llvm.org/D22277

llvm-svn: 275298

Minor cleanup.
Currently it looks wierd that having method addPredefinedSections()
we still add 2 sections outside it without real reasons.
Patch fixes that.

Differential revision: http://reviews.llvm.org/D19981

llvm-svn: 275269