Joseph Huber 82a0adf0f7 [llvm-objdump] Update offload dumping to use SHT_LLVM_OFFLOADING
In order to be more in-line with ELF semantics, a previous patch added
support for a new ELF section type to indicate if a section contains
offloading data. This allows us to now check using this rather than
checking the section name directly. This patch updates the logic to
check the type now instead.

I chose to make this emit a warning if the input is not an ELF-object
file. I could have made the logic fall-back to the section name, but
this offloading in LLVM is currently not supported on any other targets
so it's probably best to emit a warning until we improve support.

Depends on D129052

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D129053
2022-07-07 12:20:35 -04:00

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# RUN: yaml2obj %s -o %t
# RUN: not llvm-objdump --offloading %t 2>&1 | FileCheck -DFILENAME=%t %s
!ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .llvm.offloading
Type: SHT_LLVM_OFFLOADING
Flags: [ SHF_EXCLUDE ]
Address: 0x0
AddressAlign: 0x0000000000000008
Content: "10ffb0ad"
# CHECK: error: '[[FILENAME]]': while extracting offloading files: Invalid data was encountered while parsing the file