These options are to enable DLL delay loading. If enabled, DLL is loaded
at run time by a helper routine when a function in the DLL is actually called
for the first time, instead of making the Windows loader to load all DLLs at
startup time. This should shorten startup delay if an executable have many
imported symbols.

The linker needs to create a "delayed import table" and link delayimp.lib in
which helper functions are defined to support the feature.

For now, we just ignore the options, so that the linker does not complain when
it sees these options. We want to support them in the future.

llvm-svn: 191232

llvm-svn: 191227

llvm-svn: 191224

llvm-svn: 191223

llvm-svn: 191218

llvm-svn: 191217

This adds an option --output-filetype that can be set to either
YAML/Native(case insensitive). The linker would create the outputs
associated with the type specified by the user.

Changes all the tests to use the new option.

llvm-svn: 191183

llvm-svn: 191079

GNU LD driver only understood no_such_file_or_directory error and was showing
just "Unknown Error" for any other type of error. With this patch, the driver
now prints file name and error message string by default.

llvm-svn: 191070

/incremental is an option to enable incremental linking. We will eventually
want to implement the feature for better performance, but in the meantime,
we want to just ignore the option so that the linker does not output unknown
option error when it sees /incremental option.

llvm-svn: 191063

llvm-svn: 191061

/errorReport is a command line option to let the linker to report internal
linker error information to Microsoft. For LLD that option doesn't make any
sense, so it just ignores the option.

llvm-svn: 191044

llvm-svn: 191033

llvm-svn: 190986

llvm-svn: 190758

This reverts r189881 because that patch caused dangling StringRefs.

llvm-svn: 190725

So that we can determine what the target architecture is. Adding this
field does not mean that we are going to support non-i386 architectures
soon; there are many things to do to support them, and I'm focusing on
i386 now. But this is the first step toward multi architecture support.

llvm-svn: 190627

llvm-svn: 190586

Patch by Joe Ranieri

llvm-svn: 190453

-current_version, -compatibility_version, and -install_name.

Patch by Joe Ranieri

llvm-svn: 190452

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: 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

reference. Move readFile logic into FileNode::createLinkerInput.

llvm-svn: 190253

llvm-svn: 190121

llvm-svn: 190119

llvm-svn: 190117

llvm-svn: 190095

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

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

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

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: 189847

llvm-svn: 189826