[ELF][test] Improve arm-exidx-output.s to test different output text sections

[MaskRay]

Enhance

lld/test/ELF/arm-exidx-link.s

-// REQUIRES: arm
-// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
-// RUN: ld.lld %t.o -o %t.so -shared
-// RUN: llvm-readobj -S %t.so | FileCheck %s
-
-// CHECK:      Name: .ARM.exidx
-// CHECK-NEXT: Type: SHT_ARM_EXIDX
-// CHECK-NEXT: Flags [
-// CHECK-NEXT:   SHF_ALLOC
-// CHECK-NEXT:   SHF_LINK_ORDER
-// CHECK-NEXT: ]
-// CHECK-NEXT: Address:
-// CHECK-NEXT: Offset:
-// CHECK-NEXT: Size:
-// CHECK-NEXT: Link: [[INDEX:.*]]
-
-// CHECK:      Index: [[INDEX]]
-// CHECK-NEXT: Name: .text
-
-
-        f:
-  .fnstart
-  bx  lr
-  .cantunwind
-  .fnend

lld/test/ELF/arm-exidx-output.s

 // REQUIRES: arm
-// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
-// RUN: ld.lld %t -o %t2
-// RUN: llvm-readobj --sections %t2 | FileCheck %s
+// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t.o
+// RUN: ld.lld %t.o -o %t
+// RUN: llvm-readelf -S %t | FileCheck %s
+
+// RUN: echo 'SECTIONS { .text.f1 : { *(.text.f1) } .text.f2 : { *(.text.f2) } }' > %t.lds
+// RUN: ld.lld -T %t.lds %t.o -o %t1
+// RUN: llvm-readelf -S %t1 | FileCheck --check-prefix=MULTI %s
 
 // Check that only a single .ARM.exidx output section is created when
 // there are input sections of the form .ARM.exidx.<section-name>. The
 // assembler creates the .ARM.exidx input sections with the .cantunwind
 // directive
+
+// CHECK:      [Nr] Name       Type      {{.*}} Flg Lk
+// CHECK-NEXT: [ 0]
+// CHECK-NEXT: [ 1] .ARM.exidx ARM_EXIDX {{.*}}  AL  2
+// CHECK-NEXT: [ 2] .text      PROGBITS  {{.*}}  AX  0
+
+// MULTI:      [Nr] Name       Type      {{.*}} Flg Lk
+// MULTI-NEXT: [ 0]
+// MULTI-NEXT: [ 1] .ARM.exidx ARM_EXIDX {{.*}}  AL  2
+// MULTI-NEXT: [ 2] .text.f1   PROGBITS  {{.*}}  AX  0
+// MULTI-NEXT: [ 3] .text.f2   PROGBITS  {{.*}}  AX  0
+// MULTI-NEXT: [ 4] .text      PROGBITS  {{.*}}  AX  0
+
  .syntax unified
  .section .text, "ax",%progbits
  .globl _start
 _start:
  .fnstart
  bx lr
  .cantunwind
  .fnend
 
  .section .text.f1, "ax", %progbits
  .globl f1
 f1:
  .fnstart
  bx lr
  .cantunwind
  .fnend
 
  .section .text.f2, "ax", %progbits
  .globl f2
 f2:
  .fnstart
  bx lr
  .cantunwind
  .fnend
-
-// CHECK:         Section {
-// CHECK:         Name: .ARM.exidx
-// CHECK-NEXT:    Type: SHT_ARM_EXIDX (0x70000001)
-// CHECK-NEXT:    Flags [
-// CHECK-NEXT:      SHF_ALLOC
-// CHECK-NEXT:      SHF_LINK_ORDER
-// CHECK-NEXT:    ]
-
-// CHECK-NOT:     Name: .ARM.exidx.text.f1
-// CHECK-NOT:     Name: .ARM.exidx.text.f2