Mangling scheme varies on platform, and prepending an underscore is valid only
on 32-bit x86. Added a method to mangle name to PECOFFLinkingContext and use
it to avoid hard coding mangled names.

llvm-svn: 190585

llvm-svn: 190554

Patch by Joe Ranieri

llvm-svn: 190453

-current_version, -compatibility_version, and -install_name.

Patch by Joe Ranieri

llvm-svn: 190452

and a parsePackedVersion() utility.

Patch by Joe Ranieri

llvm-svn: 190451

Process::GetEnv() uses GetEnvironmentVariableW, which is a Windows API
to get an environment variable and is preferable over getenv().

llvm-svn: 190431

llvm-svn: 190332

llvm-svn: 190329

llvm-svn: 190302

llvm-svn: 190301

attribute in LinkerInput to isWholeArchive and use that for deciding
whether library archives should be expanded. Implement the -all_load
option of the Darwin linker using this flag and drop the support for it
in GNU mode.

llvm-svn: 190275

llvm-svn: 190254

reference. Move readFile logic into FileNode::createLinkerInput.

llvm-svn: 190253

Patch by Ron Ofir.

llvm-svn: 190210

Patch by Ron Ofir.

llvm-svn: 190198

llvm-svn: 190121

llvm-svn: 190120

llvm-svn: 190119

llvm-svn: 190117

llvm-svn: 190095

Writable note sections if they exist should not appear before text
they belong in the data segment

llvm-svn: 190024

It looks like there is a possibility of seeing RO/RW note sections
and we would need to create an appropriate RO/RW segment associated
with them.

Adds a test too.

llvm-svn: 189907

The compiler is allowed to add a linker option starting with -?<name> to
.drectve section. If the linker can interpret -<name>, it's processed as if
there's no question mark there. If not, such option is silently ignored.

This is a COFF's feature to allow the compiler to emit new linker options
while keeping compatibility with older linkers.

llvm-svn: 189897

Emit note sections if the input contains a note section.

Also emit a note segment.

llvm-svn: 189896

Before this patch, name of driver implementation is not consistent with its
option table file. Specifically, LDOptions has a different prefix than
GnuLdDriver.

This patch renames option files, so that the option files have the same prefix
as the corresponding driver files.

Differential Revision: http://llvm-reviews.chandlerc.com/D1591

llvm-svn: 189895

llvm-svn: 189891

llvm-svn: 189890

Also add a llvm_unreachable call so that the linker will trip on unhandled
inputElement types.

llvm-svn: 189887

llvm-svn: 189883

llvm-svn: 189881

llvm-svn: 189877

llvm-svn: 189876

llvm-svn: 189874

llvm-svn: 189873

This adds init/fini support for Hexagon.

llvm-svn: 189872

This changes the interface of createLinkerInput to use ErrorOr, so that
errors from the linker can be captured.

Also adds a convenience function for error strings to be returned from
file nodes.

llvm-svn: 189871

llvm-svn: 189865

llvm-svn: 189847

llvm-svn: 189826

dependencies should remain weak, not get promoted to undef or dropped.

llvm-svn: 189793