llvm-svn: 193385

llvm-svn: 193384

This renames the GOTPLTPass to RelocationPass and refactors it to better
represent the different types of relocations.

llvm-svn: 193379

llvm-svn: 193375

llvm-svn: 193369

The patch have completely broken COFF port and disabled many tests.
This also reverts r193302 (comment fix).

llvm-svn: 193362

llvm-svn: 193302

Easier to add new options such as -version, and easy to parse.

Now displays a help message with -help

llvm-svn: 193301

Disable tests to be run with REQUIRES: disable. Note disable is not added to the
config by the test runner Mkaefiles, so essentially disables the test.

Code changes would be required to fix these tests :-

test/darwin/hello-world.objtxt
test/elf/check.test
test/elf/phdr.test
test/elf/ppc.test
test/elf/undef-from-main-dso.test
test/elf/X86_64/note-sections-ro_plus_rw.test
test/pecoff/alignment.test
test/pecoff/base-reloc.test
test/pecoff/bss-section.test
test/pecoff/drectve.test
test/pecoff/dynamic.test
test/pecoff/dynamicbase.test
test/pecoff/entry.test
test/pecoff/hello.test
test/pecoff/imagebase.test
test/pecoff/importlib.test
test/pecoff/lib.test
test/pecoff/multi.test
test/pecoff/reloc.test
test/pecoff/weak-external.test

llvm-svn: 193300

Instead of making the linker to create a manifest XML file in the same
directory as the resulting binary, you can embed the XML as a part of
resource into the executable.

In order to do that, the linker first creates a resource script file containing
the XML file, compile it into a binary resource file with RC.EXE, and then
convert it to a COFF file with CVTRES.EXE.

llvm-svn: 193298

Because it depends on "-mllvm -debug" flag, the test fails in Release build.

llvm-svn: 193271

llvm-svn: 193266

llvm-svn: 193259

This patch won't change LLD's behavior because it's a temporary file and
LLD does not use the file extension to determine file type. But using the
correct file extension is a good thing.

llvm-svn: 193211

llvm-svn: 193207

llvm-svn: 193201

/manifestfile:<path> specifies an alternative manifest file output path.
Default is "<output-path>.manifest" where <output-path> is the executable's
path.

llvm-svn: 193195

llvm-svn: 193186

llvm-svn: 193173

uiAccess argument's type is not really boolean. It's string.

llvm-svn: 193171

llvm-svn: 193155

This option is used for the manifest file too.

llvm-svn: 193145

llvm-svn: 193143

llvm-svn: 193142

The manifest file is an XML file that conveys some information to the loader,
such as whether the executable needs to run as Administrator or not. This patch
is to parse command line option for manifest file.

Actual XML file generation will be done in a separate patch.

llvm-svn: 193141

Because MSVC11 doesn't like this new C++11 feature. The last commit
broke the buildbot.

llvm-svn: 193127

llvm-svn: 193122

llvm-svn: 193121

llvm-svn: 193030

This patch fixes a bug in r190608. The results of a comparison function
passed to std::sort must be transitive, which is, if a < b and b < c, and if
a != b, a < c must be also true. CompareAtoms::compare did not actually
guarantee the transitivity. As a result the sort results were sometimes just
wrong.

Consider there are three atoms, X, Y, and Z, whose file ordinals are 1, 2, 3,
respectively. Z has a property "layout-after X". In this case, all the
following conditionals become true:

  X < Y because X's ordinal is less than Y's
  Y < Z because Y's ordinal is less than Z's
  Z < X because of the layout-after relationship

This is not of course transitive. The reason why this happened is because
we used follow-on relationships for comparison if two atoms falls in the same
follow-on chain, but we used each atom's properties if they did not. This patch
fixes the issue by using follow-on root atoms for comparison to get consistent
results.

Differential Revision: http://llvm-reviews.chandlerc.com/D1980

llvm-svn: 193029

We should dead-strip atoms only if they are created for COMDAT symbols. If we
remove non-COMDAT atoms from a binary, it will no longer be guaranteed that
the binary will work correctly.

In COFF, you can manipulate the order of section contents in the resulting
binary by section name. For example, if you have four sections
.data$unique_prefix_{a,b,c,d}, it's guaranteed that the contents of A, B, C,
and D will be consecutive in the resulting .data section in that order.
Thus, you can access B's and C's contents by incrementing a pointer pointing
to A until it reached to D. That's why we cannot dead-strip B or C even if
no one is directly referencing to them.

Some object files in the standard library actually use that technique.

llvm-svn: 193017

INT 3 (machine code 0xCC) will raise an interrupt when executed. That is better
for filling the gap than NOP because we want to stop the execution immediately
when the control reached to non-code address.

llvm-svn: 192945

There is no test as currently there is no call to the NativeWriter.

Future commits will add calls to the NativeWriter.

llvm-svn: 192944

llvm-svn: 192943

llvm-svn: 192942

Instead of showing multiple lines of debug messages, show only one message
by CompareAtoms::operator(). Here is an example.

Before:
  Sorting _main .text
  Sorting by sectionPos(2,2)
  Sorting by override
  Sorting _main .text
  Sorting by sectionPos(2,2)
  Sorting by override

After:
  Layout: '_main' > '.text' (override (1, 0))
  Layout: '_main' > '.text' (override (1, 0))

Differential Revision: http://llvm-reviews.chandlerc.com/D1964

llvm-svn: 192941

llvm-svn: 192939

llvm-svn: 192930

Dead-strip root symbols can be undefined atoms, but should not really be
nonexistent, because dead-strip root symbols should be added to initial
undefined atoms at startup. Whenever you look up its name in the symbol
table, some type of atom will always exist.

llvm-svn: 192831

llvm-svn: 192830