using llvm's public 'C' disassembler API now including annotations.

Hooked this up to Darwin's otool(1) so it can again print things like branch
targets for example this:
 blx _puts
instead of this:
 blx #-36
and includes support for annotations for branches to symbol stubs like:
 bl	0x40 @ symbol stub for: _puts
and annotations for pc relative loads like this:
 ldr	r3, #8 @ literal pool for: Hello, world!
Also again can print the expression encoded in the Mach-O relocation entries for
things like this:
 movt r0, :upper16:((_foo-_bar)+1234)

llvm-svn: 141129

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140891

llvm-svn: 140465

llvm-svn: 140356

llvm-svn: 140352

llvm-svn: 140347

Start stubbing out MCModule and MCAtom, which provide an API for accessing the rich disassembly of a complete object or executable.
These are very much a work in progress, and not really useful yet.

llvm-svn: 140345

In the disassembler C API, be careful not to confuse the comment streamer that the disassembler outputs annotations on with the streamer that the InstPrinter will print them on.

llvm-svn: 140217

llvm-svn: 140027

Don't attach annotations to MCInst's.  Instead, have the disassembler return, and the printer accept, an annotation string which can be passed through if the client cares about annotations.

llvm-svn: 139876

The the MC disassembler C API to print in verbose mode.  Perhaps there should be a parameter to request verbose mode?

llvm-svn: 139821

Add support for stored annotations to MCInst, and provide facilities for MC-based InstPrinters to print them out.  Enhance the ARM and X86 InstPrinter's to do so in verbose mode.

llvm-svn: 139820

Assembler private local symbols aren't legal targets of symbol attributes,
so issue a diagnostic for them.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139807

If we see an EOF w/o a preceding end-of-line, return an EndOfStatement
token before returning the Eof token.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139798

llvm-svn: 139697

#line directives with the needed support in the lexer.  Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.

llvm-svn: 139669

llvm-svn: 139325

without a base symbol that must not have a relocation entry.

llvm-svn: 139316

Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.

llvm-svn: 139237

llvm-svn: 139152

llvm-svn: 139015

- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

llvm-svn: 138976

Fix apparent build error caused by r138948 on certain versions of GCC with -Werror. Sorry for the inconvenience.

llvm-svn: 138973

Remove broken emacs mode major notation marking a C++ file as C.
No functionality change.

llvm-svn: 138963

llvm-svn: 138948

In the case of EDInstInfo, this would actually cause a bug when -1 became 255
and was then compared >=0 in llvm-mc/Disassembler.cpp.

llvm-svn: 138825

llvm-svn: 138764

llvm-svn: 138752

llvm-svn: 138548

.cfi_startproc. e.g. libffi:

 $ cat confopt.c 
asm (".cfi_startproc\n\t.cfi_endproc");

int main () { return 0; }

Teach MC / dwarf emission to handle these cfi directives which essentially
create an empty frame.

rdar://10017184

llvm-svn: 138504

These are strictly utilities for registering targets and components.

llvm-svn: 138450

rdar://9976729

llvm-svn: 138208

MCParsedAsmOperand objects were being leaked.

llvm-svn: 138053

The argument is unused, and is a layering violation in any case.

llvm-svn: 137735

MachOWriter: Don't crash on fixups with arithmetic, emit a relocation instead. This matches what as does.

llvm-svn: 137414

Assigned symbol addresses get truncated to 32-bits, even on 64-bit platforms.
That's obviously bogus.
For example,

 .globl _foo
 .equ _foo, 0x987654321ULL


rdar://9922863

llvm-svn: 137158

llvm-svn: 137060

Add MCInstrAnalysis class. This allows the targets to specify own versions of MCInstrDescs functions.

- Add overrides for ARM.
- Teach llvm-objdump to use this instead of plain MCInstrDesc.

llvm-svn: 137059

llvm-svn: 136908

This is meant to be overriden by backends. Implement an override on PowerPC
which adjusts the offset by 2 for ha16/lo16 relocation kinds. This removes
a commented out hack and enables hello world to be compiled on PowerPC.

llvm-svn: 136905