[lld] [lld][ELF] Add armeb support when incoming bc is arm big endian (PR #72604)

[dong jianqiang via llvm-commits]

https://github.com/dongjianqiang2 updated https://github.com/llvm/llvm-project/pull/72604

>From f91e89b188499adbfec328dc1d1ce3918695ba2c Mon Sep 17 00:00:00 2001
From: Dong JianQiang <dongjianqiang2 at huawei.com>
Date: Thu, 16 Nov 2023 20:55:05 +0800
Subject: [PATCH] [lld][ELF] Add armeb support when incoming bc is arm big
 endian

---
 lld/ELF/InputFiles.cpp  | 2 ++
 lld/test/ELF/lto/arm.ll | 9 +++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp
index 7ac737dab0519a8..06a3d565deb765e 100644
--- a/lld/ELF/InputFiles.cpp
+++ b/lld/ELF/InputFiles.cpp
@@ -1582,7 +1582,9 @@ static uint16_t getBitcodeMachineKind(StringRef path, const Triple &t) {
   case Triple::r600:
     return EM_AMDGPU;
   case Triple::arm:
+  case Triple::armeb:
   case Triple::thumb:
+  case Triple::thumbeb:
     return EM_ARM;
   case Triple::avr:
     return EM_AVR;
diff --git a/lld/test/ELF/lto/arm.ll b/lld/test/ELF/lto/arm.ll
index 00d08658adfe50a..5860262ac8bf90f 100644
--- a/lld/test/ELF/lto/arm.ll
+++ b/lld/test/ELF/lto/arm.ll
@@ -7,13 +7,15 @@
 ; RUN: ld.lld %t/arm.o -o %t/arm
 ; RUN: llvm-readobj -h %t/arm | FileCheck %s --check-prefix=ARM
 ; RUN: llvm-as %t/armeb.ll -o %t/armeb.o
-; RUN: not ld.lld %t/armeb.o -o %t/armeb
+; RUN: ld.lld %t/armeb.o -o %t/armeb
+; RUN: llvm-readobj -h %t/armeb | FileCheck %s --check-prefix=ARMEB
 
 ; RUN: llvm-as %t/thumb.ll -o %t/thumb.o
 ; RUN: ld.lld %t/thumb.o -o %t/thumb
 ; RUN: llvm-readobj -h %t/thumb | FileCheck %s --check-prefix=THUMB
 ; RUN: llvm-as %t/thumbeb.ll -o %t/thumbeb.o
-; RUN: not ld.lld %t/thumbeb.o -o %t/thumbeb
+; RUN: ld.lld %t/thumbeb.o -o %t/thumbeb
+; RUN: llvm-readobj -h %t/thumbeb | FileCheck %s --check-prefix=THUMBEB
 
 ; ARM:       Class: 32-bit
 ; ARM:       DataEncoding: LittleEndian
@@ -25,6 +27,9 @@
 ; THUMB:     Class: 32-bit
 ; THUMB:     DataEncoding: LittleEndian
 ; THUMB:   Machine: EM_ARM (
+; THUMBEB:   Class: 32-bit
+; THUMBEB:   DataEncoding: BigEndian
+; THUMBEB: Machine: EM_ARM (
 
 ;--- arm.ll
 target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"