Prakhar Bahuguna dc9a43dec1 [ARM] Implement execute-only support in CodeGen ... This implements execute-only support for ARM code generation, which prevents the compiler from generating data accesses to code sections. The following changes are involved: * Add the CodeGen option "-arm-execute-only" to the ARM code generator. * Add the clang flag "-mexecute-only" as well as the GCC-compatible alias "-mpure-code" to enable this option. * When enabled, literal pools are replaced with MOVW/MOVT instructions, with VMOV used in addition for floating-point literals. As the MOVT instruction is required, execute-only support is only available in Thumb mode for targets supporting ARMv8-M baseline or Thumb2. * Jump tables are placed in data sections when in execute-only mode. * The execute-only text section is assigned section ID 0, and is marked as unreadable with the SHF_ARM_PURECODE flag with symbol 'y'. This also overrides selection of ELF sections for globals. llvm-svn: 289784		2016-12-15 07:59:08 +00:00
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ARMAttributeParser.cpp
ARMAttributeParser.h
ARMEHABIPrinter.h	[ELF] Convert ELF.h to Expected<T>.	2016-11-16 05:10:28 +00:00
ARMWinEHPrinter.cpp
ARMWinEHPrinter.h
CMakeLists.txt
CodeView.h
COFFDumper.cpp	[CodeView] Hook up CodeViewRecordIO to type serialization path.	2016-11-08 22:24:53 +00:00
COFFImportDumper.cpp
ELFDumper.cpp	[ARM] Implement execute-only support in CodeGen	2016-12-15 07:59:08 +00:00
Error.cpp
Error.h
llvm-readobj.cpp	AMDGPU: Emit runtime metadata version 2 as YAML	2016-12-14 17:16:52 +00:00
llvm-readobj.h
LLVMBuild.txt
MachODumper.cpp
ObjDumper.cpp
ObjDumper.h	AMDGPU: Emit runtime metadata version 2 as YAML	2016-12-14 17:16:52 +00:00
StackMapPrinter.h
Win64EHDumper.cpp
Win64EHDumper.h