readelf: Add support for LoongArch specific e_flags #1532
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EM_LOONGARCH is officially registered as e_machine 258. Reference: llvm/llvm-project@e53e6ec
Reference1: https://github.com/loongson/la-abi-specs/blob/release/laelf.adoc Reference2: llvm/llvm-project@4e2dfd3 ❯ /usr/obj/usr/bsrc/amd64.amd64/usr.bin/readelf/readelf -h ~/CNPROJ/dwz ELF Header: Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: NONE ABI Version: 0 Type: DYN (Shared object file) Machine: LoongArch Version: 0x1 Entry point address: 0x3f68 Start of program headers: 64 (bytes into file) Start of section headers: 266304 (bytes into file) Flags: 0x43, DOUBLE-FLOAT, OBJ-v1 Size of this header: 64 (bytes) Size of program headers: 56 (bytes) Number of program headers: 9 Size of section headers: 64 (bytes) Number of section headers: 27 Section header string table index: 26 ❯ ❯ llvm-readelf -h ~/CNPROJ/dwz ELF Header: Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00 Class: ELF64 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: DYN (Shared object file) Machine: LoongArch Version: 0x1 Entry point address: 0x3F68 Start of program headers: 64 (bytes into file) Start of section headers: 266304 (bytes into file) Flags: 0x43, DOUBLE-FLOAT, OBJ-v1 Size of this header: 64 (bytes) Size of program headers: 56 (bytes) Number of program headers: 9 Size of section headers: 64 (bytes) Number of section headers: 27 Section header string table index: 26
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As far as I know, FreeBSD does not ( or have plans to ) support LoongArch, but this is for elf tools so I guess it is OK to have this feature in. CC @bsdimp and @kostikbel . |
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This should likely to upstream https://sourceforge.net/p/elftoolchain/wiki/Home/ |
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Hello, I have added support for the LoongArch architecture to readelf, primarily referencing RISC-V/LLVM related commits.