[lld] [llvm] [llvm-objdump][ARM] Find ELF file PLT entries for arm, thumb (PR #130764)

[Fangrui Song via llvm-commits]

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+// Test PLT section parsing on arm.
+
+// RUN: %clang -target armv6a-none-linux-gnueabi -fuse-ld=ld.lld \
+// RUN:   -nostdlib -nostdinc -shared %s -o %t1
+// RUN: llvm-objdump --no-show-raw-insn --no-print-imm-hex \
+// RUN:   -d %t1 | FileCheck %s --check-prefixes=CHECK,LE
+
+// Test PLT section parsing on armeb.
+
+// RUN: %clang -target armv6aeb-none-linux-gnueabi -fuse-ld=ld.lld \
+// RUN:   -nostdlib -nostdinc -shared %s -o %t2
+// RUN: llvm-objdump --no-show-raw-insn --no-print-imm-hex \
+// RUN:   -d %t2 | FileCheck %s --check-prefixes=CHECK,BE
+// RUN: obj2yaml %t2 | FileCheck %s --check-prefixes=NOBE8
+
+// Test PLT section parsing on armeb with be8.
+
+// RUN: %clang -target armv7aeb-none-linux-gnueabi -fuse-ld=ld.lld \
+// RUN:   -nostdlib -nostdinc -shared %s -o %t3
+// RUN: llvm-objdump --no-show-raw-insn --no-print-imm-hex \
+// RUN:   -d %t3 | FileCheck %s --check-prefixes=CHECK,BE
+// RUN: obj2yaml %t3 | FileCheck %s --check-prefixes=BE8
+
+// LE: file format elf32-littlearm
+// BE: file format elf32-bigarm
+// NOBE8-NOT: EF_ARM_BE8
+// BE8: EF_ARM_BE8
+
+// CHECK: Disassembly of section .text:
+// CHECK-EMPTY:
+// CHECK-NEXT:    <_start>:
+// CHECK-NEXT:      push	{r11, lr}
+// CHECK-NEXT:      mov	r11, sp
+// CHECK-NEXT:      bl	0x10240 <func1 at plt>
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MaskRay wrote:

`bl {{.*}} <func1 at plt>`. The addresses are not reliable.

https://github.com/llvm/llvm-project/pull/130764