AMDGPU/SI: Set ELF OS/ABI to ELFOSABI_AMDGPU_HSA

Reviewers: arsenm, rafael

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10708

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240832 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
index 3804d2626fc3a401d378ffc1e45b4a93de8b563c..94a4bfb220259041d7aa9d20cc9c7eacd31c0543 100644 (file)
--- a/include/llvm/Support/ELF.h
+++ b/include/llvm/Support/ELF.h
@@ -347,6 +347,7 @@ enum {
   ELFOSABI_FENIXOS = 16,      // FenixOS
   ELFOSABI_CLOUDABI = 17,     // Nuxi CloudABI
   ELFOSABI_C6000_ELFABI = 64, // Bare-metal TMS320C6000
+  ELFOSABI_AMDGPU_HSA = 64,   // AMD HSA runtime
   ELFOSABI_C6000_LINUX = 65,  // Linux TMS320C6000
   ELFOSABI_ARM = 97,          // ARM
   ELFOSABI_STANDALONE = 255   // Standalone (embedded) application

diff --git a/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFObjectWriter.cpp b/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFObjectWriter.cpp
index 7cb2cd4a940ea417f86f34eb87baceb2e6a907a5..820f17df896000166285c7e89685ac986207347c 100644 (file)
--- a/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFObjectWriter.cpp
+++ b/lib/Target/AMDGPU/MCTargetDesc/AMDGPUELFObjectWriter.cpp
@@ -31,7 +31,8 @@ protected:
 } // End anonymous namespace
 
 AMDGPUELFObjectWriter::AMDGPUELFObjectWriter(bool Is64Bit)
-  : MCELFObjectTargetWriter(Is64Bit, 0, ELF::EM_AMDGPU, false) { }
+  : MCELFObjectTargetWriter(Is64Bit, ELF::ELFOSABI_AMDGPU_HSA,
+                            ELF::EM_AMDGPU, false) { }
 
 MCObjectWriter *llvm::createAMDGPUELFObjectWriter(bool Is64Bit, raw_pwrite_stream &OS) {
   MCELFObjectTargetWriter *MOTW = new AMDGPUELFObjectWriter(Is64Bit);

diff --git a/test/CodeGen/AMDGPU/elf.ll b/test/CodeGen/AMDGPU/elf.ll
index 35e9832d39731a9183fd89e1c6ffe97c9290c29d..90af6782c4b4577d7c5daefbf8a3b0604e6eb26a 100644 (file)
--- a/test/CodeGen/AMDGPU/elf.ll
+++ b/test/CodeGen/AMDGPU/elf.ll
@@ -9,6 +9,7 @@
 ; RUN: llc < %s -mtriple=amdgcn-pc-mingw -mcpu=SI -verify-machineinstrs -filetype=obj | llvm-readobj -s -symbols -file-headers - | FileCheck --check-prefix=ELF %s
 
 ; ELF: Format: ELF64
+; ELF: OS/ABI: AMDGPU_HSA (0x40)
 ; ELF: Machine: EM_AMDGPU (0xE0)
 ; ELF: Name: .AMDGPU.config
 ; ELF: Type: SHT_PROGBITS

diff --git a/tools/llvm-readobj/ELFDumper.cpp b/tools/llvm-readobj/ELFDumper.cpp
index 3df8ed9f7104c45ee85aa71dd38eda33c4b0447d..630f0ee5fb86ee57c18efae58bf4132d22376ed6 100644 (file)
--- a/tools/llvm-readobj/ELFDumper.cpp
+++ b/tools/llvm-readobj/ELFDumper.cpp
@@ -574,7 +574,13 @@ void ELFDumper<ELFT>::printFileHeaders() {
       W.printEnum  ("DataEncoding", Header->e_ident[ELF::EI_DATA],
                       makeArrayRef(ElfDataEncoding));
       W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
-      W.printEnum  ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
+
+      // Handle architecture specific OS/ABI values.
+      if (Header->e_machine == ELF::EM_AMDGPU &&
+          Header->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
+        W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
+      else
+        W.printEnum  ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
                       makeArrayRef(ElfOSABI));
       W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
       W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));