Index: lib/Target/AMDGPU/AMDGPUTargetObjectFile.h =================================================================== --- lib/Target/AMDGPU/AMDGPUTargetObjectFile.h +++ lib/Target/AMDGPU/AMDGPUTargetObjectFile.h @@ -26,6 +26,8 @@ public: MCSection *SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const override; + MCSection *getExplicitSectionGlobal(const GlobalObject *GO, SectionKind Kind, + const TargetMachine &TM) const override; }; } // end namespace llvm Index: lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp =================================================================== --- lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp +++ lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp @@ -29,3 +29,13 @@ return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM); } + +MCSection *AMDGPUTargetObjectFile::getExplicitSectionGlobal( + const GlobalObject *GO, SectionKind SK, const TargetMachine &TM) const { + // Set metadata access for the explicit section + StringRef SectionName = GO->getSection(); + if (SectionName.startswith(".AMDGPU.metadata.")) + SK = SectionKind::getMetadata(); + + return TargetLoweringObjectFileELF::getExplicitSectionGlobal(GO, SK, TM); +} Index: test/CodeGen/AMDGPU/elf.metadata.ll =================================================================== --- /dev/null +++ test/CodeGen/AMDGPU/elf.metadata.ll @@ -0,0 +1,56 @@ +; RUN: llc < %s -march=amdgcn -mcpu=fiji -filetype=obj | llvm-readobj -symbols -s -sd - | FileCheck %s + +; CHECK: Section { +; CHECK: Name: .AMDGPU.metadata.info_1 +; CHECK: Type: SHT_PROGBITS (0x1) +; CHECK: Flags [ (0x0) +; CHECK: Size: 16 +; CHECK: SectionData ( +; CHECK: 0000: 414D4431 414D4431 414D4431 414D4431 |AMD1AMD1AMD1AMD1| +; CHECK: ) +; CHECK: } + +; CHECK: Section { +; CHECK: Name: .AMDGPU.metadata.info_2 +; CHECK: Type: SHT_PROGBITS (0x1) +; CHECK: Flags [ (0x0) +; CHECK: Size: 16 +; CHECK: SectionData ( +; CHECK: 0000: 414D4432 414D4432 414D4432 414D4432 |AMD2AMD2AMD2AMD2| +; CHECK: ) +; CHECK: } + +; CHECK: Section { +; CHECK: Name: .AMDGPU.metadata.info_3 +; CHECK: Type: SHT_PROGBITS (0x1) +; CHECK: Flags [ (0x0) +; CHECK: Size: 16 +; CHECK: SectionData ( +; CHECK: 0000: 414D4433 414D4433 414D4433 414D4433 |AMD3AMD3AMD3AMD3| +; CHECK: ) +; CHECK: } + +; CHECK: Symbol { +; CHECK: Name: metadata_info_var_1 +; CHECK: Size: 16 +; CHECK: Binding: Local +; CHECK: Section: .AMDGPU.metadata.info_1 +; CHECK: } + +; CHECK: Symbol { +; CHECK: Name: metadata_info_var_2 +; CHECK: Size: 16 +; CHECK: Binding: Global +; CHECK: Section: .AMDGPU.metadata.info_2 +; CHECK: } + +; CHECK: Symbol { +; CHECK: Name: metadata_info_var_3 +; CHECK: Size: 16 +; CHECK: Binding: Global +; CHECK: Section: .AMDGPU.metadata.info_3 +; CHECK: } + +@metadata_info_var_1 = internal global [4 x i32][i32 826559809, i32 826559809, i32 826559809, i32 826559809], align 1, section ".AMDGPU.metadata.info_1" +@metadata_info_var_2 = constant [4 x i32][i32 843337025, i32 843337025, i32 843337025, i32 843337025], align 1, section ".AMDGPU.metadata.info_2" +@metadata_info_var_3 = global [4 x i32][i32 860114241, i32 860114241, i32 860114241, i32 860114241], align 1, section ".AMDGPU.metadata.info_3"