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Nick Kledzik 4121bce3f6 [mach-o] Add Pass to create are shim Atoms for ARM interworking. 
Arm code has two instruction encodings "thumb" and "arm".  When branching from
one code encoding to another, you need to use an instruction that switches
the instruction mode.  Usually the transition only happens at call sites, and
the linker can transform a BL instruction in BLX (or vice versa).  But if the
compiler did a tail call optimization and a function ends with a branch (not
branch and link), there is no pc-rel BX instruction.

The ShimPass looks for pc-rel B instructions that will need to switch mode.
For those cases it synthesizes a shim which does the transition, then modifies
the original atom with the B instruction to target to the shim atom.

llvm-svn: 219655
 		2014-10-14 01:51:42 +00:00
..
cmake/modules Add VTune as an optional external dependency and add task tracking. 2013-04-06 00:56:40 +00:00
docs Update current LLD status for MIPS target. 2014-09-08 14:56:20 +00:00
include [mach-o] Add Pass to create are shim Atoms for ARM interworking. 2014-10-14 01:51:42 +00:00
lib [mach-o] Add Pass to create are shim Atoms for ARM interworking. 2014-10-14 01:51:42 +00:00
test [mach-o] Add Pass to create are shim Atoms for ARM interworking. 2014-10-14 01:51:42 +00:00
tools Add support to print version. 2014-10-08 03:47:51 +00:00
unittests [PECOFF] Remember DLL names given with /delayload option. 2014-10-08 21:38:10 +00:00
utils Update for llvm api change. 2014-07-06 17:43:22 +00:00
.arcconfig Update Phabricator server. 2014-04-07 04:52:24 +00:00
.clang-format Remove redundant "Standard: Cpp11" tag. The LLVM style has used the 2014-07-04 12:08:03 +00:00
.gitignore Update .gitignore to ignore hidden MacOSX Finder droppings 2014-07-16 21:01:17 +00:00
CMakeLists.txt Add support to print version. 2014-10-08 03:47:51 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
Makefile Initial set of Makefiles 2014-06-04 09:54:07 +00:00
README.md Test commit 2012-09-14 00:00:39 +00:00

README.md

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.