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
..
CMakeLists.txt	[ObjectYAML] Pull DWARF support into DWARFYAML namespace	2016-12-07 21:26:32 +00:00
COFFYAML.cpp	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
DWARFYAML.cpp	[ObjectYAML] Support for DWARF debug_aranges	2016-12-09 00:26:44 +00:00
ELFYAML.cpp	[ARM] Implement execute-only support in CodeGen	2016-12-15 07:59:08 +00:00
LLVMBuild.txt
MachOYAML.cpp	[ObjectYAML] Pull DWARF support into DWARFYAML namespace	2016-12-07 21:26:32 +00:00
ObjectYAML.cpp	Fix Clang-tidy readability-redundant-string-cstr warnings	2016-11-02 16:43:50 +00:00
YAML.cpp