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Fangrui Song bb43600d6c [Object] Change ELFObjectFile<ELFT>::getFileFormatName() to use BFD names
Follow-up for D74433

What the function returns are almost standard BFD names, except that "ELF" is
in uppercase instead of lowercase.

This patch changes "ELF" to "elf" and changes ARM/AArch64 to use their BFD names.
MIPS and PPC64 have endianness differences as well, but this patch does not intend to address them.

Advantages:

* llvm-objdump: the "file format " line matches GNU objdump on ARM/AArch64 objects
* "file format " line can be extracted and fed into llvm-objcopy -O literally.
  (https://github.com/ClangBuiltLinux/linux/issues/779 has such a use case)

Affected tools: llvm-readobj, llvm-objdump, llvm-dwarfdump, MCJIT (internal implementation detail, not exposed)

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D76046
2020-03-16 07:42:04 -07:00

18 lines
576 B
LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood -filetype=obj | llvm-readobj -S - | FileCheck --check-prefix=ELF %s
; RUN: llc < %s -march=r600 -mcpu=redwood -o - | FileCheck --check-prefix=CONFIG %s
; ELF: Format: elf32-amdgpu
; ELF: Name: .AMDGPU.config
; CONFIG: .section .AMDGPU.config
; CONFIG-NEXT: .long 166100
; CONFIG-NEXT: .long 2
; CONFIG-NEXT: .long 165900
; CONFIG-NEXT: .long 0
define amdgpu_kernel void @test(float addrspace(1)* %out, i32 %p) {
%i = add i32 %p, 2
%r = bitcast i32 %i to float
store float %r, float addrspace(1)* %out
ret void
}