Add test

Author: Nechda

llvm/test/tools/llvm-objcopy/MachO/Inputs/macho_sections.s

@@ -0,0 +1,30 @@
+	.section	__TEXT,__text,regular,pure_instructions
+	.build_version macos, 11, 0
+	.globl	_main                           ; -- Begin function main
+	.p2align	2
+_main:                                  ; @main
+	.cfi_startproc
+; %bb.0:
+	sub	sp, sp, #32
+	stp	x29, x30, [sp, #16]             ; 16-byte Folded Spill
+	add	x29, sp, #16
+	.cfi_def_cfa w29, 16
+	.cfi_offset w30, -8
+	.cfi_offset w29, -16
+	mov	w8, #0                          ; =0x0
+	str	w8, [sp, #8]                    ; 4-byte Folded Spill
+	stur	wzr, [x29, #-4]
+	adrp	x0, __ZL7storage@PAGE
+	add	x0, x0, __ZL7storage@PAGEOFF
+	bl	__Z3fooPKc
+	ldr	w0, [sp, #8]                    ; 4-byte Folded Reload
+	ldp	x29, x30, [sp, #16]             ; 16-byte Folded Reload
+	add	sp, sp, #32
+	ret
+	.cfi_endproc
+                                        ; -- End function
+	.section	__DATA,__storage
+__ZL7storage:                           ; @_ZL7storage
+	.space	1383                        ; 0x567
+
+.subsections_via_symbols

llvm/test/tools/llvm-objcopy/MachO/update-section-object.test

@@ -0,0 +1,48 @@
+# REQUIRES: aarch64-registered-target
+
+# RUN: llvm-mc -assemble -triple=arm64-apple-macos11 -filetype=obj %p/Inputs/macho_sections.s -o %t.o
+# RUN: llvm-otool -l %t.o | FileCheck %s --check-prefix=ORIG
+
+
+# RUN: llvm-objcopy %t.o --update-section __DATA,__storage=%p/Inputs/macho_sections.s %t.new.o
+# RUN: llvm-otool -l %t.new.o | FileCheck %s --check-prefix=UPDATED
+
+
+# ORIG:      cmd LC_SEGMENT_64
+# ORIG-NEXT: cmdsize 312
+# ORIG-NEXT: segname
+# ORIG-NEXT: vmaddr 0x0000000000000000
+# ORIG-NEXT: vmsize 0x00000000000005c0
+# ORIG-NEXT: fileoff 472
+# ORIG-NEXT: filesize 1472
+# ORIG-NEXT: maxprot 0x00000007
+# ORIG-NEXT: initprot 0x00000007
+# ORIG-NEXT: nsects 3
+# ORIG-NEXT: flags 0x0
+
+# ORIG:      Section
+# ORIG:      sectname __storage
+# ORIG-NEXT: segname __DATA
+# ORIG-NEXT: addr 0x0000000000000034
+# ORIG-NEXT: size 0x0000000000000567
+
+
+### Make sure the file size and segment size have changed
+# UPDATED:      cmd LC_SEGMENT_64
+# UPDATED-NEXT: cmdsize 312
+# UPDATED-NEXT: segname
+# UPDATED-NEXT: vmaddr 0x0000000000000000
+# UPDATED-NEXT: vmsize 0x00000000000005c0
+# UPDATED-NEXT: fileoff 472
+# UPDATED-NEXT: filesize 1048
+# UPDATED-NEXT: maxprot 0x00000007
+# UPDATED-NEXT: initprot 0x00000007
+# UPDATED-NEXT: nsects 3
+# UPDATED-NEXT: flags 0x0
+
+# UPDATED:      Section
+# UPDATED:      sectname __storage
+# UPDATED-NEXT: segname __DATA
+# UPDATED-NEXT: addr 0x0000000000000034
+# UPDATED-NEXT: size 0x00000000000003be
+