Rebase onto master.

Rebase onto master.

Rebase onto master.

Rebase onto latest master.

Rebase onto latest master.

Rebase onto latest master.

Implement the -R option as an alias to either --rpath or --just-symbols. It is treated as latter if the argument file exists and is not a directory.

Added a check to only allow ET_EXEC and the corresponding test.

• Copy symbol type, size, binding, etc, like D39348.
• Update test cases.

In D39348#950848, @grimar wrote:

What is your use case to specify only single --just-symbol file ?

If the only input file is specified as the argument of --just-symbol, lld will error out (ld.bfd accepts this):

Oops. It looks like I actually didn't submit some of these draft comments.

Rebase onto latest master

• Rebase onto latest master
• Clean up #includes

• Rebase onto latest master
• Clean up #includes

clang-format-diff RISCV::writePLT.

Make R_RISCV_CALL reuse R_RISCV_PCREL_HI20 and R_RISCV_PCREL_LO12_I.

I believe the best place would be either the issue tracker on the psABI doc, or RISC-V's sw-dev mailing list.

• Mark TLS_DTP_OFFSET as internal linkage.

• Use write32le.
• Since __global_pointer$ is no longer absolute, remove workaround to make it a static link-time constant in PIE.

• Use {read,write}32le to read/write insturctions.
• Make __global_pointer$ non-absolute.

De-template RISCV class.

De-template RISCV class and assume little-endian.

• Renamed uint32_t to RelType.
• Detemplate the RISCV class.

In D39322#908393, @ruiu wrote:

As you said this looks like a pretty straightforward port to RISC-V. Thank you for doing this!

IIRC, last time when we discussed RISC-V support in lld, I had a concern that linker relaxation (moving code inside a section to make it compact) is virtually mandatory to link RISC-V object files. What is the situation of it? If you can link a small static executable with this patch, then it is probably no longer mandatory, but I want to make sure that that's the case.

llvm-readobj would also need to be modified to recognize RISC-V eflags, and I think it is better to keep that in a separate commit.

Added RISC-V tests for ObjectYAML