[Object] Change ELFObjectFile<ELFT>::getFileFormatName() to use BFD n…

…ames Follow-up for D74433 What the function returns are almost standard BFD names, except that "ELF" is in uppercase instead of lowercase. This patch changes "ELF" to "elf" and changes ARM/AArch64 to use their BFD names. MIPS and PPC64 have endianness differences as well, but this patch does not intend to address them. Advantages: * llvm-objdump: the "file format " line matches GNU objdump on ARM/AArch64 objects * "file format " line can be extracted and fed into llvm-objcopy -O literally. (ClangBuiltLinux/linux#779 has such a use case) Affected tools: llvm-readobj, llvm-objdump, llvm-dwarfdump, MCJIT (internal implementation detail, not exposed) Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D76046
draperlaboratory · Oct 4, 2022 · f867c83 · f867c83
1 parent e9a0e41
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diff --git a/lld/test/ELF/basic-ppc.s b/lld/test/ELF/basic-ppc.s
@@ -9,7 +9,7 @@
  li      3,1
  sc
 
-// CHECK: Format: ELF32-ppc
+// CHECK:      Format: elf32-powerpc
 // CHECK-NEXT: Arch: powerpc
 // CHECK-NEXT: AddressSize: 32bit
 // CHECK-NEXT: LoadName:

diff --git a/lld/test/ELF/basic-ppc64.s b/lld/test/ELF/basic-ppc64.s
@@ -14,7 +14,7 @@
   li 3,55
   sc
 
-// CHECK:Format: ELF64-ppc64
+// CHECK:      Format: elf64-powerpc
 // LE-NEXT:    Arch: powerpc64le
 // BE-NEXT:    Arch: powerpc64{{$}}
 // CHECK-NEXT: AddressSize: 64bit

diff --git a/lld/test/ELF/format-binary.test b/lld/test/ELF/format-binary.test
@@ -60,10 +60,10 @@
 # RUN: ld.lld -b binary %t.binary -T %t.script -o %t.out
 # RUN: llvm-readobj %t.out -sections -section-data -symbols | FileCheck -check-prefix=X86-64 %s
 
-# X86-64: Format: ELF64-x86-64
+# X86-64: Format: elf64-x86-64
 
 # RUN: echo 'OUTPUT_FORMAT("elf64-x86-64")' > %t.script
 # RUN: ld.lld -b binary %t.binary -T %t.script -o %t.out
 # RUN: llvm-readobj %t.out -sections -section-data -symbols | FileCheck -check-prefix=X86-64-in-quotes %s
 
-# X86-64-in-quotes: Format: ELF64-x86-64
+# X86-64-in-quotes: Format: elf64-x86-64
diff --git a/lld/test/ELF/gnu-hash-table.s b/lld/test/ELF/gnu-hash-table.s
@@ -68,7 +68,7 @@
 # EMPTY-NEXT:   Values: []
 # EMPTY-NEXT: }
 
-# I386:      Format: ELF32-i386
+# I386:      Format: elf32-i386
 # I386:      Arch: i386
 # I386:      AddressSize: 32bit
 # I386:      Sections [
@@ -127,7 +127,7 @@
 # I386-NEXT:   Values: [0xB8860BA, 0xB887389]
 # I386-NEXT: }
 
-# X86_64:      Format: ELF64-x86-64
+# X86_64:      Format: elf64-x86-64
 # X86_64:      Arch: x86_64
 # X86_64:      AddressSize: 64bit
 # X86_64:      Sections [
@@ -187,7 +187,7 @@
 # X86_64-NEXT:   Values: [0xB8860BA, 0xB887389]
 # X86_64-NEXT: }
 
-# PPC64:      Format: ELF64-ppc64
+# PPC64:      Format: elf64-powerpc
 # PPC64:      Arch: powerpc64
 # PPC64:      AddressSize: 64bit
 # PPC64:      Sections [

diff --git a/lld/test/ELF/linkerscript/linker-script-in-search-path.s b/lld/test/ELF/linkerscript/linker-script-in-search-path.s
@@ -7,7 +7,7 @@
 # RUN: echo 'OUTPUT("%t.out")' > %t.dir/script
 # RUN: ld.lld -T%t.dir/script %t.o
 # RUN: llvm-readobj %t.out | FileCheck %s
-# CHECK: Format: ELF64-x86-64
+# CHECK: Format: elf64-x86-64
 
 # If the linker script specified with -T is missing we should emit an error
 # RUN: not ld.lld -Tscript %t.o 2>&1 | FileCheck %s -check-prefix ERROR

diff --git a/lld/test/ELF/lto/lto-start.ll b/lld/test/ELF/lto/lto-start.ll
@@ -3,7 +3,7 @@
 ; RUN: ld.lld %t.o -o %t2
 ; RUN: llvm-readobj --symbols %t2 | FileCheck %s
 
-; CHECK:      Format: ELF64-x86-64
+; CHECK:      Format: elf64-x86-64
 ; CHECK-NEXT: Arch: x86_64
 ; CHECK-NEXT: AddressSize: 64bit
 

diff --git a/lld/test/ELF/lto/obj-path.ll b/lld/test/ELF/lto/obj-path.ll
@@ -16,10 +16,10 @@
 ; CHECK-NEXT: T g
 
 ; NM1: T f
-; ELF1: Format: ELF64-x86-64
+; ELF1: Format: elf64-x86-64
 
 ; NM2: T g
-; ELF2: Format: ELF64-x86-64
+; ELF2: Format: elf64-x86-64
 
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"

diff --git a/lld/test/ELF/lto/thinlto-debug-fission.ll b/lld/test/ELF/lto/thinlto-debug-fission.ll
@@ -7,7 +7,7 @@
 ; RUN: ld.lld --plugin-opt=dwo_dir=%t.dir -shared %t1.o -o /dev/null
 ; RUN: llvm-readobj -h %t.dir/0.dwo | FileCheck %s
 
-; CHECK: Format: ELF64-x86-64
+; CHECK: Format: elf64-x86-64
 
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"

diff --git a/lld/test/ELF/lto/thinlto-obj-path.ll b/lld/test/ELF/lto/thinlto-obj-path.ll
@@ -14,7 +14,7 @@
 ; RUN: ld.lld -thinlto-index-only -lto-obj-path=%t4.o -shared %t1.o %t2.o -o /dev/null
 ; RUN: llvm-readobj -h %t4.o | FileCheck %s
 
-; CHECK: Format: ELF64-x86-64
+; CHECK: Format: elf64-x86-64
 
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"

diff --git a/lld/test/ELF/relocatable-empty-archive.s b/lld/test/ELF/relocatable-empty-archive.s
@@ -4,7 +4,7 @@
 # RUN: ld.lld -m elf_x86_64 %t.a -o %t -r
 # RUN: llvm-readobj --file-headers %t | FileCheck %s
 
-# CHECK: Format: ELF64-x86-64
+# CHECK: Format: elf64-x86-64
 # CHECK: Arch: x86_64
 # CHECK: AddressSize: 64bit
 # CHECK: Type: Relocatable
diff --git a/lld/test/ELF/relocatable.s b/lld/test/ELF/relocatable.s
@@ -75,7 +75,7 @@
 # CHECKTEXT-NEXT: 40: c7 04 25 00 00 00 00 08 00 00 00 movl $8, 0
 # CHECKTEXT-NEXT: 4b: c7 04 25 00 00 00 00 09 00 00 00 movl $9, 0
 
-# CHECKEXE:       Format: ELF64-x86-64
+# CHECKEXE:       Format: elf64-x86-64
 # CHECKEXE-NEXT:  Arch: x86_64
 # CHECKEXE-NEXT:  AddressSize: 64bit
 # CHECKEXE-NEXT:  LoadName:

diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h
@@ -1060,59 +1060,59 @@ StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
   case ELF::ELFCLASS32:
     switch (EF.getHeader()->e_machine) {
     case ELF::EM_386:
-      return "ELF32-i386";
+      return "elf32-i386";
     case ELF::EM_IAMCU:
-      return "ELF32-iamcu";
+      return "elf32-iamcu";
     case ELF::EM_X86_64:
-      return "ELF32-x86-64";
+      return "elf32-x86-64";
     case ELF::EM_ARM:
-      return (IsLittleEndian ? "ELF32-arm-little" : "ELF32-arm-big");
+      return (IsLittleEndian ? "elf32-littlearm" : "elf32-bigarm");
     case ELF::EM_AVR:
-      return "ELF32-avr";
+      return "elf32-avr";
     case ELF::EM_HEXAGON:
-      return "ELF32-hexagon";
+      return "elf32-hexagon";
     case ELF::EM_LANAI:
-      return "ELF32-lanai";
+      return "elf32-lanai";
     case ELF::EM_MIPS:
-      return "ELF32-mips";
+      return "elf32-mips";
     case ELF::EM_MSP430:
-      return "ELF32-msp430";
+      return "elf32-msp430";
     case ELF::EM_PPC:
-      return "ELF32-ppc";
+      return "elf32-powerpc";
     case ELF::EM_RISCV:
-      return "ELF32-riscv";
+      return "elf32-littleriscv";
     case ELF::EM_SPARC:
     case ELF::EM_SPARC32PLUS:
-      return "ELF32-sparc";
+      return "elf32-sparc";
     case ELF::EM_AMDGPU:
-      return "ELF32-amdgpu";
+      return "elf32-amdgpu";
     default:
-      return "ELF32-unknown";
+      return "elf32-unknown";
     }
   case ELF::ELFCLASS64:
     switch (EF.getHeader()->e_machine) {
     case ELF::EM_386:
-      return "ELF64-i386";
+      return "elf64-i386";
     case ELF::EM_X86_64:
-      return "ELF64-x86-64";
+      return "elf64-x86-64";
     case ELF::EM_AARCH64:
-      return (IsLittleEndian ? "ELF64-aarch64-little" : "ELF64-aarch64-big");
+      return (IsLittleEndian ? "elf64-littleaarch64" : "elf64-bigaarch64");
     case ELF::EM_PPC64:
-      return "ELF64-ppc64";
+      return "elf64-powerpc";
     case ELF::EM_RISCV:
-      return "ELF64-riscv";
+      return "elf64-littleriscv";
     case ELF::EM_S390:
-      return "ELF64-s390";
+      return "elf64-s390";
     case ELF::EM_SPARCV9:
-      return "ELF64-sparc";
+      return "elf64-sparc";
     case ELF::EM_MIPS:
-      return "ELF64-mips";
+      return "elf64-mips";
     case ELF::EM_AMDGPU:
-      return "ELF64-amdgpu";
+      return "elf64-amdgpu";
     case ELF::EM_BPF:
-      return "ELF64-BPF";
+      return "elf64-bpf";
     default:
-      return "ELF64-unknown";
+      return "elf64-unknown";
     }
   default:
     // FIXME: Proper error handling.

diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -554,7 +554,7 @@ void RuntimeDyldELF::setMipsABI(const ObjectFile &Obj) {
     IsMipsO32ABI = AbiVariant & ELF::EF_MIPS_ABI_O32;
     IsMipsN32ABI = AbiVariant & ELF::EF_MIPS_ABI2;
   }
-  IsMipsN64ABI = Obj.getFileFormatName().equals("ELF64-mips");
+  IsMipsN64ABI = Obj.getFileFormatName().equals("elf64-mips");
 }
 
 // Return the .TOC. section and offset.

diff --git a/llvm/test/CodeGen/AArch64/arm64-simplest-elf.ll b/llvm/test/CodeGen/AArch64/arm64-simplest-elf.ll
@@ -11,7 +11,7 @@ define void @foo() nounwind {
 
   ; Similarly make sure ELF output works and is vaguely sane: aarch64 target
   ; machine with correct section & symbol names.
-; CHECK-ELF: file format elf64-aarch64
+; CHECK-ELF: file format elf64-littleaarch64
 
 ; CHECK-ELF: Disassembly of section .text
 ; CHECK-ELF-LABEL: <foo>:

diff --git a/llvm/test/CodeGen/AMDGPU/elf.ll b/llvm/test/CodeGen/AMDGPU/elf.ll
@@ -8,7 +8,7 @@
 ; Test that we don't try to produce a COFF file on windows
 ; RUN: llc < %s -mtriple=amdgcn-pc-mingw -verify-machineinstrs -filetype=obj | llvm-readobj -S --symbols --file-headers - | FileCheck --check-prefix=ELF %s
 
-; ELF: Format: ELF64-amdgpu
+; ELF: Format: elf64-amdgpu
 ; ELF: OS/ABI: SystemV (0x0)
 ; ELF: Machine: EM_AMDGPU (0xE0)
 ; ELF: Name: .AMDGPU.config

diff --git a/llvm/test/CodeGen/AMDGPU/elf.r600.ll b/llvm/test/CodeGen/AMDGPU/elf.r600.ll
@@ -1,7 +1,7 @@
 ; RUN: llc < %s -march=r600 -mcpu=redwood -filetype=obj | llvm-readobj -S - | FileCheck --check-prefix=ELF %s
 ; RUN: llc < %s -march=r600 -mcpu=redwood -o - | FileCheck --check-prefix=CONFIG %s
 
-; ELF: Format: ELF32-amdgpu
+; ELF: Format: elf32-amdgpu
 ; ELF: Name: .AMDGPU.config
 
 ; CONFIG: .section .AMDGPU.config

diff --git a/llvm/test/DebugInfo/AArch64/big-endian-dump.ll b/llvm/test/DebugInfo/AArch64/big-endian-dump.ll
@@ -1,6 +1,6 @@
 ; RUN: llc -O0 -filetype=obj -mtriple=aarch64_be-none-linux < %s | llvm-dwarfdump - | FileCheck %s
 
-; CHECK: file format ELF64-aarch64-big
+; CHECK: file format elf64-bigaarch64
 
 target datalayout = "E-m:e-i64:64-i128:128-n32:64-S128"
 

diff --git a/llvm/test/DebugInfo/AArch64/little-endian-dump.ll b/llvm/test/DebugInfo/AArch64/little-endian-dump.ll
@@ -1,6 +1,6 @@
 ; RUN: llc -O0 -filetype=obj -mtriple=aarch64-none-linux < %s | llvm-dwarfdump - | FileCheck %s
 
-; CHECK: file format ELF64-aarch64-little
+; CHECK: file format elf64-littleaarch64
 
 target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
 

diff --git a/llvm/test/DebugInfo/ARM/big-endian-dump.ll b/llvm/test/DebugInfo/ARM/big-endian-dump.ll
@@ -1,6 +1,6 @@
 ; RUN: llc -O0 -filetype=obj -mtriple=armeb-none-linux < %s | llvm-dwarfdump - | FileCheck %s
 
-; CHECK: file format ELF32-arm-big
+; CHECK: file format elf32-bigarm
 
 target datalayout = "E-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
 

diff --git a/llvm/test/DebugInfo/ARM/little-endian-dump.ll b/llvm/test/DebugInfo/ARM/little-endian-dump.ll
@@ -1,6 +1,6 @@
 ; RUN: llc -O0 -filetype=obj -mtriple=arm-none-linux < %s | llvm-dwarfdump - | FileCheck %s
 
-; CHECK: file format ELF32-arm-little
+; CHECK: file format elf32-littlearm
 
 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
 

diff --git a/llvm/test/DebugInfo/Sparc/gnu-window-save.ll b/llvm/test/DebugInfo/Sparc/gnu-window-save.ll
@@ -4,7 +4,7 @@
 ; Check for DW_CFA_GNU_Window_save in debug_frame. Also, Ensure that relocations
 ; are performed correctly in debug_info.
 
-; SPARC64: file format ELF64-sparc
+; SPARC64: file format elf64-sparc
 
 ; SPARC64: .debug_info
 ; SPARC64:      DW_TAG_compile_unit
@@ -20,7 +20,7 @@
 ; SPARC64-NEXT: DW_CFA_register
 
 
-; SPARC32: file format ELF32-sparc
+; SPARC32: file format elf32-sparc
 
 ; SPARC32: .debug_info
 ; SPARC32:      DW_TAG_compile_unit

diff --git a/llvm/test/MC/ARM/dwarf-asm-no-code.s b/llvm/test/MC/ARM/dwarf-asm-no-code.s
@@ -8,7 +8,7 @@
 a:
 .long 42
 
-// DWARF: ELF32-arm-little
+// DWARF: elf32-littlearm
 // DWARF-NOT: contents:
 // DWARF: .debug_line contents:
 

diff --git a/llvm/test/MC/AVR/dwarf-asm-no-code.s b/llvm/test/MC/AVR/dwarf-asm-no-code.s
@@ -8,7 +8,7 @@
 a:
 .long 42
 
-// DWARF: ELF32-avr
+// DWARF: elf32-avr
 // DWARF-NOT: contents:
 // DWARF: .debug_line contents:
 

diff --git a/llvm/test/MC/AsmParser/non-english-characters.s b/llvm/test/MC/AsmParser/non-english-characters.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple i386-linux-gnu -filetype=obj -o %t \
 # RUN:   %S/Inputs/non-english-characters-comments.s
 # RUN: llvm-readobj %t | FileCheck %s
-# CHECK: Format: ELF32-i386
+# CHECK: Format: elf32-i386
 
 # RUN: not llvm-mc -triple i386-linux-gnu -filetype=obj -o %t \
 # RUN:   %S/Inputs/non-english-characters-section-name.s 2>&1 | \

diff --git a/llvm/test/MC/ELF/empty.s b/llvm/test/MC/ELF/empty.s
@@ -5,8 +5,8 @@
 // Check that we can create ELF files for darwin/windows, even though
 // it is not the default file format.
 
-// DARWIN:       Format: ELF64-x86-64
-// WINDOWS:      Format: ELF64-x86-64
+// DARWIN:       Format: elf64-x86-64
+// WINDOWS:      Format: elf64-x86-64
 // DARWIN-NEXT:  Arch: x86_64
 // WINDOWS-NEXT: Arch: x86_64
 

diff --git a/llvm/test/MC/ELF/relocation-386.s b/llvm/test/MC/ELF/relocation-386.s
@@ -4,8 +4,8 @@
 // Test that we produce the correct relocation types and that the relocations
 // correctly point to the section or the symbol.
 
-// IAMCU: Format: ELF32-iamcu
-// I386: Format: ELF32-i386
+// IAMCU: Format: elf32-iamcu
+// I386: Format: elf32-i386
 // CHECK:      Relocations [
 // CHECK-NEXT:   Section {{.*}} .rel.text {
 // CHECK-NEXT:     0x2          R_386_GOTOFF     .Lfoo 0x0

diff --git a/llvm/test/MC/Hexagon/basic.ll b/llvm/test/MC/Hexagon/basic.ll
@@ -1,7 +1,7 @@
 ;; RUN: llc -mtriple=hexagon-unknown-elf -filetype=obj %s -o - \
 ;; RUN: | llvm-readobj -h -r | FileCheck -check-prefix=OBJ %s
 
-; OBJ: Format: ELF32-hexagon
+; OBJ: Format: elf32-hexagon
 ; OBJ: Arch: hexagon
 ; OBJ: AddressSize: 32bit
 ; OBJ: Machine: EM_HEXAGON (0xA4)
diff --git a/llvm/test/MC/RISCV/elf-header.s b/llvm/test/MC/RISCV/elf-header.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -filetype=obj -triple=riscv64 | llvm-readobj -h \
 # RUN:     | FileCheck -check-prefix=RV64 %s
 
-# RV32: Format: ELF32-riscv
+# RV32: Format: elf32-littleriscv
 # RV32: Arch: riscv32
 # RV32: AddressSize: 32bit
 # RV32: ElfHeader {
@@ -22,7 +22,7 @@
 # RV32:   ]
 # RV32: }
 
-# RV64: Format: ELF64-riscv
+# RV64: Format: elf64-littleriscv
 # RV64: Arch: riscv64
 # RV64: AddressSize: 64bit
 # RV64: ElfHeader {

diff --git a/llvm/test/MC/Sparc/sparc-relocations.s b/llvm/test/MC/Sparc/sparc-relocations.s
@@ -1,7 +1,7 @@
 ! RUN: llvm-mc %s -arch=sparcv9 -show-encoding | FileCheck %s
 ! RUN: llvm-mc %s -arch=sparcv9 -filetype=obj | llvm-readobj -r | FileCheck %s --check-prefix=CHECK-OBJ
 
-        ! CHECK-OBJ: Format: ELF64-sparc
+        ! CHECK-OBJ: Format: elf64-sparc
         ! CHECK-OBJ: Relocations [
         ! CHECK-OBJ: 0x{{[0-9,A-F]+}} R_SPARC_WDISP30 foo
         ! CHECK-OBJ: 0x{{[0-9,A-F]+}} R_SPARC_LO10 sym

diff --git a/llvm/test/Object/AMDGPU/elf32-unknown.yaml b/llvm/test/Object/AMDGPU/elf32-unknown.yaml
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s -o %t.o
 # RUN: llvm-readobj -S --file-headers %t.o | FileCheck %s
 
-# CHECK: Format: ELF32-amdgpu
+# CHECK: Format: elf32-amdgpu
 
 --- !ELF
 FileHeader:

diff --git a/llvm/test/Object/AMDGPU/elf64-unknown.yaml b/llvm/test/Object/AMDGPU/elf64-unknown.yaml
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s -o %t.o
 # RUN: llvm-readobj -S --file-headers %t.o | FileCheck %s
 
-# CHECK: Format: ELF64-amdgpu
+# CHECK: Format: elf64-amdgpu
 
 --- !ELF
 FileHeader: