loongarch64: calculate the ELF header flags

zhaixiaojuan · heiher · commit 737e1d25692f · 2023-04-04T17:11:40.000+08:00
diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs
@@ -192,6 +192,10 @@ pub(crate) fn create_object_file(sess: &Session) -> Option<write::Object<'static
             }
             e_flags
         }
+        Architecture::LoongArch64 => {
+            // Source: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_flags_identifies_abi_type_and_version
+            elf::EF_LARCH_OBJABI_V1 | elf::EF_LARCH_ABI_DOUBLE_FLOAT
+        }
         _ => 0,
     };
     // adapted from LLVM's `MCELFObjectTargetWriter::getOSABI`

Original file line number	Diff line number	Diff line change
`@@ -192,6 +192,10 @@ pub(crate) fn create_object_file(sess: &Session) -> Option<write::Object<'static`
`192`	`192`	`}`
`193`	`193`	`e_flags`
`194`	`194`	`}`
	`195`	`+ Architecture::LoongArch64 => {`
	`196`	`+ // Source: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_flags_identifies_abi_type_and_version`
	`197`	`+ elf::EF_LARCH_OBJABI_V1 \| elf::EF_LARCH_ABI_DOUBLE_FLOAT`
	`198`	`+ }`
`195`	`199`	`_ => 0,`
`196`	`200`	`};`
`197`	`201`	// adapted from LLVM's `MCELFObjectTargetWriter::getOSABI`