361 changes: 361 additions & 0 deletions lld/test/mach-o/arm-interworking.yaml
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# RUN: lld -flavor darwin -arch armv7 -r -print_atoms %s -o %t | FileCheck %s \
# RUN: && lld -flavor darwin -arch armv7 -dylib -print_atoms %t -o %t2 | FileCheck %s \
# RUN: && macho-dump --dump-section-data %t2 | FileCheck -check-prefix=CODE %s
#
# Test thumb and arm branches round trip through -r.
# Test bl/blx instructions are fixed up properly.
#
#

--- !mach-o
arch: armv7
file-type: MH_OBJECT
flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
alignment: 2
address: 0x0000000000000000
content: [ 0xFF, 0xF7, 0xFE, 0xFF, 0xC0, 0x46, 0xFF, 0xF7,
0xFC, 0xEF, 0xC0, 0x46, 0xFF, 0xF7, 0xF8, 0xEF,
0xFF, 0xF7, 0xF6, 0xFF, 0xC0, 0x46, 0xFF, 0xF7,
0xF3, 0xFF, 0xC0, 0x46, 0x00, 0xF0, 0x06, 0xE8,
0xC0, 0x46, 0x00, 0xF0, 0x03, 0xF8, 0x00, 0xF0,
0x02, 0xF8, 0x70, 0x47, 0x70, 0x47, 0x70, 0x47 ]
relocations:
- offset: 0x00000026
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x00000022
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x0000001C
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x00000016
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x00000010
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x0000000C
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: true
symbol: 5
- offset: 0x00000006
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: true
symbol: 5
- offset: 0x00000000
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: true
symbol: 4
- segment: __DATA
section: __data
type: S_REGULAR
attributes: [ ]
address: 0x0000000000000030
content: [ 0x2D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
relocations:
- offset: 0x00000004
type: ARM_RELOC_VANILLA
length: 2
pc-rel: false
extern: true
symbol: 4
- offset: 0x00000000
type: ARM_RELOC_VANILLA
length: 2
pc-rel: false
extern: false
symbol: 1
local-symbols:
- name: _t3
type: N_SECT
sect: 1
desc: [ N_ARM_THUMB_DEF ]
value: 0x000000000000002E
- name: _d1
type: N_SECT
sect: 2
value: 0x0000000000000030
global-symbols:
- name: _t1
type: N_SECT
scope: [ N_EXT ]
sect: 1
desc: [ N_ARM_THUMB_DEF ]
value: 0x0000000000000000
- name: _t2
type: N_SECT
scope: [ N_EXT ]
sect: 1
desc: [ N_ARM_THUMB_DEF ]
value: 0x000000000000002C
undefined-symbols:
- name: _a1
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
- name: _a2
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000

--- !mach-o
arch: armv7
file-type: MH_OBJECT
flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
alignment: 2
address: 0x0000000000000000
content: [ 0xFE, 0xFF, 0xFF, 0xEB, 0x02, 0x00, 0x00, 0xFA,
0xFC, 0xFF, 0xFF, 0xEB, 0xFB, 0xFF, 0xFF, 0xFA,
0x1E, 0xFF, 0x2F, 0xE1, 0x1E, 0xFF, 0x2F, 0xE1 ]
relocations:
- offset: 0x0000000C
type: ARM_RELOC_BR24
length: 2
pc-rel: true
extern: true
symbol: 4
- offset: 0x00000008
type: ARM_RELOC_BR24
length: 2
pc-rel: true
extern: true
symbol: 3
- offset: 0x00000004
type: ARM_RELOC_BR24
length: 2
pc-rel: true
extern: false
symbol: 1
- offset: 0x00000000
type: ARM_RELOC_BR24
length: 2
pc-rel: true
extern: false
symbol: 1
- segment: __DATA
section: __data
type: S_REGULAR
attributes: [ ]
address: 0x0000000000000018
content: [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
relocations:
- offset: 0x00000004
type: ARM_RELOC_VANILLA
length: 2
pc-rel: false
extern: false
symbol: 1
- offset: 0x00000000
type: ARM_RELOC_VANILLA
length: 2
pc-rel: false
extern: true
symbol: 3
local-symbols:
- name: _d2
type: N_SECT
sect: 2
value: 0x0000000000000018
global-symbols:
- name: _a1
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000000
- name: _a2
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000014
undefined-symbols:
- name: _t1
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
- name: _t2
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
...


# CHECK: defined-atoms:
# CHECK: - name: _d1
# CHECK: type: data
# CHECK: references:
# CHECK: - kind: pointer32
# CHECK: offset: 0
# CHECK: target: _t2
# CHECK: - kind: pointer32
# CHECK: offset: 4
# CHECK: target: _a1
# CHECK: - name: _d2
# CHECK: type: data
# CHECK: references:
# CHECK: - kind: pointer32
# CHECK: offset: 0
# CHECK: target: _t1
# CHECK: - kind: pointer32
# CHECK: offset: 4
# CHECK: target: _a1
# CHECK: - name: _t1
# CHECK: scope: global
# CHECK: references:
# CHECK: - kind: modeThumbCode
# CHECK: offset: 0
# CHECK: target: _t1
# CHECK: - kind: thumb_b22
# CHECK: offset: 0
# CHECK: target: _a1
# CHECK: - kind: thumb_b22
# CHECK: offset: 6
# CHECK: target: _a2
# CHECK: - kind: thumb_b22
# CHECK: offset: 12
# CHECK: target: _a2
# CHECK: - kind: thumb_b22
# CHECK: offset: 16
# CHECK: target: _t1
# CHECK: - kind: thumb_b22
# CHECK: offset: 22
# CHECK: target: _t1
# CHECK: - kind: thumb_b22
# CHECK: offset: 28
# CHECK: target: _t2
# CHECK: - kind: thumb_b22
# CHECK: offset: 34
# CHECK: target: _t2
# CHECK: - kind: thumb_b22
# CHECK: offset: 38
# CHECK: target: _t3
# CHECK: - name: _t2
# CHECK: scope: global
# CHECK: content: [ 70, 47 ]
# CHECK: references:
# CHECK: - kind: modeThumbCode
# CHECK: offset: 0
# CHECK: target: _t2
# CHECK: - name: _t3
# CHECK: content: [ 70, 47 ]
# CHECK: references:
# CHECK: - kind: modeThumbCode
# CHECK: offset: 0
# CHECK: target: _t3
# CHECK: - name: _a1
# CHECK: scope: global
# CHECK: references:
# CHECK: - kind: arm_b24
# CHECK: offset: 0
# CHECK: target: _a1
# CHECK: - kind: arm_b24
# CHECK: offset: 4
# CHECK: target: _a2
# CHECK: - kind: arm_b24
# CHECK: offset: 8
# CHECK: target: _t1
# CHECK: - kind: arm_b24
# CHECK: offset: 12
# CHECK: target: _t2
# CHECK: - name: _a2
# CHECK: scope: global


# CODE: (('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
# CODE: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
# CODE: ('_section_data', '00f016e8 c04600f0 1ee8c046 00f01ae8 fff7f6ff c046fff7 f3ffc046 00f006f8 c04600f0 03f800f0 02f87047 70477047 feffffeb 020000eb f0fffffa fafffffa 1eff2fe1 1eff2fe1')
# When we get a good mach-o disassembler the above __text section content check can be change to be symbolic.

# CODE: (('section_name', '__data\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
# CODE: ('segment_name', '__DATA\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
# CODE: ('_section_data', '{{[0-9a-f]}}{{[13579bdf]}}{{[0-9a-f]+}} {{[0-9a-f]}}{{[02468ade]}}{{[0-9a-f]+}} {{[0-9a-f]}}{{[13579bdf]}}{{[0-9a-f]+}} {{[0-9a-f]}}{{[02468ade]}}{{[0-9a-f]+}}')
# Verify the low (thumb) bit is set on the first and third pointers but not the second and fourth.



# Input file one:
#
# .align 2
# .code 16
# .globl _t1
# .thumb_func _t1
#_t1:
# bl _a1
# nop
# blx _a2
# nop
# blx _a2
# bl _t1
# nop
# bl _t1
# nop
# blx _t2
# nop
# blx _t2
# bx lr
#
# .globl _t2
# .thumb_func _t2
#_t2:
# bx lr
#
# .data
#_d1: .long _t2
# .long _a1



# Input file two:
#
# .align 2
# .code 32
# .globl _a1
#_a1:
# bl _a1
# blx _a2
# bl _t1
# blx _t2
# bx lr
#
# .globl _a2
#_a2:
# bx lr
#
# .data
#_d2: .long _t1
# .long _a1




103 changes: 103 additions & 0 deletions lld/test/mach-o/hello-world-armv7.yaml
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# RUN: lld -flavor darwin -arch armv7 -ios_version_min 7.0 %s -o %t && \
# RUN: llvm-nm %t | FileCheck %s
#
# Test that armv7 (thumb) hello-world can be linked into a mach-o executable
#

--- !mach-o
arch: armv7
file-type: MH_OBJECT
flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
has-UUID: false
OS: unknown
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
alignment: 2
address: 0x0000000000000000
content: [ 0x80, 0xB5, 0x40, 0xF2, 0x06, 0x00, 0x6F, 0x46,
0xC0, 0xF2, 0x00, 0x00, 0x78, 0x44, 0xFF, 0xF7,
0xF8, 0xEF, 0x00, 0x20, 0x80, 0xBD ]
relocations:
- offset: 0x0000000E
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: true
symbol: 1
- offset: 0x00000008
scattered: true
type: ARM_RELOC_HALF_SECTDIFF
length: 3
pc-rel: false
value: 0x00000016
- offset: 0x00000006
scattered: true
type: ARM_RELOC_PAIR
length: 3
pc-rel: false
value: 0x0000000C
- offset: 0x00000002
scattered: true
type: ARM_RELOC_HALF_SECTDIFF
length: 2
pc-rel: false
value: 0x00000016
- offset: 0x00000000
scattered: true
type: ARM_RELOC_PAIR
length: 2
pc-rel: false
value: 0x0000000C
- segment: __TEXT
section: __cstring
type: S_CSTRING_LITERALS
attributes: [ ]
address: 0x0000000000000016
content: [ 0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x0A, 0x00 ]
global-symbols:
- name: _main
type: N_SECT
scope: [ N_EXT ]
sect: 1
desc: [ N_ARM_THUMB_DEF ]
value: 0x0000000000000000
undefined-symbols:
- name: _printf
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
...

--- !mach-o
arch: armv7
file-type: MH_DYLIB
flags: [ ]
install-name: /usr/lib/libSystem.B.dylib
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
address: 0x0000000000000000
content: [ 0x55 ]

global-symbols:
- name: _printf
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000001
- name: dyld_stub_binder
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000001

...

# CHECK: {{[0-9a-f]+}} T _main
# CHECK: U _printf
# CHECK: U dyld_stub_binder