llvm-svn: 194890

llvm-svn: 194887

llvm-svn: 194877

llvm-svn: 194866

This patch does not change the meaning of the program, but if something's wrong
in the linker or the compiler and the control reaches to the gap of imported
function table, it will stop immediately because of the presence of INT3. If
NOP, it'd fall through to the next call instruction, which is usually a
completely foreign function call.

llvm-svn: 194860

llvm-svn: 194851

llvm-svn: 194847

llvm-svn: 194793

llvm-svn: 194791

Also slightly reduces PECOFFLinkingContext's memory footprint (~128B).

llvm-svn: 194787

llvm-svn: 194776

llvm-svn: 194754

llvm-svn: 194746

llvm-svn: 194722

llvm-svn: 194721

llvm-svn: 194677

llvm-svn: 194675

llvm-svn: 194668

This dependency needs to be cleaned up at some point. .directve handling needs the link.exe option parser.

llvm-svn: 194642

No functionality change.

llvm-svn: 194560

llvm-svn: 194556

This reverts commit r194551 because it broke the buildbot.

llvm-svn: 194552

llvm-svn: 194551

llvm-svn: 194539

llvm-svn: 194492

llvm-svn: 194364

The result of sizeof(SymbolTable<ELFT>::SymbolEntry) in DynamicSymbolTable
<ELFT>::write() was different from the same expression in RelocationTable
<ELFT>::write(), although the same template parameters were passed. They were
40 and 32, respectively. As a result, the same vector was treated as a
vector of 40 byte values in some places and a vector of 32 values in other
places. That caused an weird issue, resulting in collapse of the rela.dyn
section.

I suspect that this is a padding size calculation bug in MSVC 2012, but I
may be wrong. Reordering the fields to eliminate padding seems to fix the
issue.

llvm-svn: 194349

llvm-svn: 194322

llvm-svn: 194305

llvm-svn: 194299

llvm-svn: 194290

llvm-svn: 194278

llvm-svn: 194172

llvm-svn: 194171

This patch adds support for converting normalized mach-o to and from binary
mach-o. It also changes WriterMachO (which previously directly wrote a 
mach-o binary given a set of Atoms) to instead do it in two steps. The first 
step uses normalizedFromAtoms() to convert Atoms to normalized mach-o, and the
second step uses writeBinary() which to generate the mach-o binary file.  

llvm-svn: 194167

llvm-svn: 194166

These fields are for /align option. Section alignment can be set per-section
basis with /section option too. In order to avoid name conflicts, rename the
existing identifiers to become more specific. No functionality change.

llvm-svn: 194160

llvm-svn: 194128

We wrapped the linker internal file with a virtual archive file, so that the
linker internal file was linked only when it's actually used. This was to avoid
__ImageBase being included to the resulting executable. __ImageBase used to
occupy four bytes when emitted to executable.

And then it turned out that the implementation of __ImageBase was wrong -- it
shouldn't have been a regular atom but an absolute atom. Absolute atoms point
to some memory location, but they don't occupy disk space themselves. So it
wouldn't increase executable size (except the symbol table.) That means that
it's OK to link the linker internal file unconditionally.

So this patch does that, removing the wrapper archive file. Doing this
simplifies the code.

llvm-svn: 194127

Errors in .drectve section were silently ignored. This patch fixes the issue.

llvm-svn: 194110