Report endianness in output of {dwarf, obj}dump

For biendian targets like ARM and AArch64, it is useful to have the
output of the llvm-dwarfdump and llvm-objdump report the endianness
used when the object files were generated.

Patch by Charlie Turner.

llvm-svn: 218391

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-dwarfdump/ARM/little-endian-dump.ll b/llvm/test/tools/llvm-dwarfdump/ARM/little-endian-dump.ll
new file mode 100644
index 00000000000..f7936c17828
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/ARM/little-endian-dump.ll
@@ -0,0 +1,20 @@
+; RUN: llc -O0 -filetype=obj -o %t1 < %s
+; RUN: llvm-dwarfdump %t1 | FileCheck %s
+
+; CHECK: file format ELF32-arm-little
+
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+target triple = "armv8-none--eabi"
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5, !6}
+!llvm.ident = !{!7}
+
+!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.6.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/a/empty.c] [DW_LANG_C99]
+!1 = metadata !{metadata !"empty.c", metadata !"/a"}
+!2 = metadata !{}
+!3 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!4 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
+!5 = metadata !{i32 1, metadata !"wchar_size", i32 4}
+!6 = metadata !{i32 1, metadata !"min_enum_size", i32 4}
+!7 = metadata !{metadata !"clang version 3.6.0 "}