Commit Graph

14 Commits

Author SHA1 Message Date
Eugene Zelenko 28082ab0e5 [ObjectYAML] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
llvm-svn: 306925
2017-07-01 01:35:55 +00:00
George Rimar 892c6c86ea [YAML] - Teach yaml2obj/obj2yaml to work with numeric relocation values.
That may be useful if we want to produce or parse object containing
broken relocation values using yaml2obj/obj2yaml.

Previously that was impossible because only enum values were parsed
correctly, this patch allows to put any numeric value as a
relocation type.

Differential revision: https://reviews.llvm.org/D34758

llvm-svn: 306814
2017-06-30 10:31:03 +00:00
Peter Collingbourne f0e26e7270 MC, Object: Reserve a section type, SHT_LLVM_ODRTAB, for the ODR table.
This is part of the ODR checker proposal:
http://lists.llvm.org/pipermail/llvm-dev/2017-June/113820.html

Per discussion on the gnu-gabi mailing list [1] the section type range
0x6fff4c00..0x6fff4cff is reserved for LLVM.

[1] https://sourceware.org/ml/gnu-gabi/2017-q2/msg00030.html

Differential Revision: https://reviews.llvm.org/D33978

llvm-svn: 305407
2017-06-14 18:52:12 +00:00
Zachary Turner 264b5d9e88 Move Object format code to lib/BinaryFormat.
This creates a new library called BinaryFormat that has all of
the headers from llvm/Support containing structure and layout
definitions for various types of binary formats like dwarf, coff,
elf, etc as well as the code for identifying a file from its
magic.

Differential Revision: https://reviews.llvm.org/D33843

llvm-svn: 304864
2017-06-07 03:48:56 +00:00
Konstantin Zhuravlyov 5b0bf2ff0d AMDGPU: Remove deprecated and unused elf definitions
Differential Revision: https://reviews.llvm.org/D33689

llvm-svn: 304737
2017-06-05 21:33:40 +00:00
Rafael Espindola 2d55781ae3 Make this file clang-format friendly and clang-format it.
llvm-svn: 293689
2017-01-31 21:11:12 +00:00
Prakhar Bahuguna 52a7dd7d78 [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
Alex Bradbury 1524f62b97 [RISCV] Add RISC-V ELF defines
Add the necessary definitions for RISC-V ELF files, including relocs. Also 
make necessary trivial change to ELFYaml, llvm-objdump, and llvm-readobj in 
order to work with RISC-V ELFs.

Differential Revision: https://reviews.llvm.org/D23557

llvm-svn: 285708
2016-11-01 16:59:37 +00:00
Alexei Starovoitov cfb51f54ba BPF: Use official ELF e_machine value
The same value for EM_BPF is being propagated to glibc,
elfutils, and binutils.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 275633
2016-07-15 22:27:55 +00:00
Chris Bieneman 8ff0c11357 [yaml2obj] Remove --format option in favor of YAML tags
Summary:
Our YAML library's handling of tags isn't perfect, but it is good enough to get rid of the need for the --format argument to yaml2obj. This patch does exactly that.

Instead of requiring --format, it infers the format based on the tags found in the object file. The supported tags are:

!ELF
!COFF
!mach-o
!fat-mach-o

I have a corresponding patch that is quite large that fixes up all the in-tree test cases.

Reviewers: rafael, Bigcheese, compnerd, silvas

Subscribers: compnerd, llvm-commits

Differential Revision: http://reviews.llvm.org/D21711

llvm-svn: 273915
2016-06-27 19:53:53 +00:00
Tom Stellard f8db61c5f0 Support/ELF: Add AMDGPU relocation definitions to match documentation
Reviewers: arsenm, kzhuravl, rafael

Subscribers: llvm-commits, kzhuravl

Differential Revision: http://reviews.llvm.org/D21443

llvm-svn: 273066
2016-06-17 22:38:08 +00:00
Jacques Pienaar fcef3e4617 [lanai] Add Lanai backend.
Add the Lanai backend to lib/Target.

General Lanai backend discussion on llvm-dev thread "[RFC] Lanai backend" (http://lists.llvm.org/pipermail/llvm-dev/2016-February/095118.html).

Differential Revision: http://reviews.llvm.org/D17011

llvm-svn: 264578
2016-03-28 13:09:54 +00:00
Valery Pykhtin d6331cee2f [AMDGPU] add AMDGPU target support to ELFObjectFile.h header
Differential Revision: http://reviews.llvm.org/D17144

llvm-svn: 263026
2016-03-09 17:08:19 +00:00
Rafael Espindola ebd9193b57 Move ObjectYAML code to a new library.
It is only ever used by obj2yaml and yaml2obj. No point in linking it
everywhere.

llvm-svn: 262368
2016-03-01 19:15:06 +00:00