maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/MachO/reloc-subtractor.s

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

51 lines
1.5 KiB
ArmAsm
Raw Normal View History

[lld-macho] Properly test subtractor relocations & fix their attributes `llvm-mc` doesn't generate any relocations for subtractions between local symbols -- they must be global -- so the previous test wasn't actually testing any relocation logic. I've fixed that and extended the test to cover r_length=3 relocations as well as both x86_64 and arm64. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97057
2021-02-28 01:30:15 +08:00
# REQUIRES: x86, aarch64
# RUN: rm -rf %t; mkdir %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/x86_64.o
# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t/arm64.o
# RUN: %lld -lSystem %t/x86_64.o -o %t/x86_64
[lld-macho] Don't emit rebase opcodes for subtractor minuend relocs Also add a few asserts to verify that we are indeed handling an UNSIGNED relocation as the minued. I haven't made it an actual user-facing error since I don't think llvm-mc is capable of generating SUBTRACTOR relocations without an associated UNSIGNED. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97103
2021-02-28 01:30:16 +08:00
# RUN: llvm-objdump --syms --full-contents --rebase %t/x86_64 | FileCheck %s
[lld-macho] Properly test subtractor relocations & fix their attributes `llvm-mc` doesn't generate any relocations for subtractions between local symbols -- they must be global -- so the previous test wasn't actually testing any relocation logic. I've fixed that and extended the test to cover r_length=3 relocations as well as both x86_64 and arm64. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97057
2021-02-28 01:30:15 +08:00
# RUN: %lld -arch arm64 -lSystem %t/arm64.o -o %t/arm64
[lld-macho] Don't emit rebase opcodes for subtractor minuend relocs Also add a few asserts to verify that we are indeed handling an UNSIGNED relocation as the minued. I haven't made it an actual user-facing error since I don't think llvm-mc is capable of generating SUBTRACTOR relocations without an associated UNSIGNED. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97103
2021-02-28 01:30:16 +08:00
# RUN: llvm-objdump --syms --full-contents --rebase %t/arm64 | FileCheck %s
[lld-macho] Properly test subtractor relocations & fix their attributes `llvm-mc` doesn't generate any relocations for subtractions between local symbols -- they must be global -- so the previous test wasn't actually testing any relocation logic. I've fixed that and extended the test to cover r_length=3 relocations as well as both x86_64 and arm64. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97057
2021-02-28 01:30:15 +08:00
# CHECK-LABEL: SYMBOL TABLE:
# CHECK: {{0*}}[[#%x, SUB1ADDR:]] l {{.*}} __DATA,__data _sub1
# CHECK: {{0*}}[[#%x, SUB2ADDR:]] l {{.*}} __DATA,__data _sub2
# CHECK: {{0*}}[[#%x, SUB3ADDR:]] l {{.*}} __DATA,__data _sub3
# CHECK: {{0*}}[[#%x, SUB4ADDR:]] l {{.*}} __DATA,__data _sub4
# CHECK-LABEL: Contents of section __DATA,__data:
# CHECK: [[#SUB1ADDR]] 10000000
# CHECK-NEXT: [[#SUB2ADDR]] f0ffffff
# CHECK-NEXT: [[#SUB3ADDR]] 10000000 00000000
# CHECK-NEXT: [[#SUB4ADDR]] f0ffffff ffffffff
[lld-macho] Don't emit rebase opcodes for subtractor minuend relocs Also add a few asserts to verify that we are indeed handling an UNSIGNED relocation as the minued. I haven't made it an actual user-facing error since I don't think llvm-mc is capable of generating SUBTRACTOR relocations without an associated UNSIGNED. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97103
2021-02-28 01:30:16 +08:00
# CHECK: Rebase table:
# CHECK-NEXT: segment section address type
# CHECK-EMPTY:
[lld-macho] Properly test subtractor relocations & fix their attributes `llvm-mc` doesn't generate any relocations for subtractions between local symbols -- they must be global -- so the previous test wasn't actually testing any relocation logic. I've fixed that and extended the test to cover r_length=3 relocations as well as both x86_64 and arm64. Reviewed By: #lld-macho, smeenai Differential Revision: https://reviews.llvm.org/D97057
2021-02-28 01:30:15 +08:00
.globl _main, _subtrahend_1, _subtrahend_2, _minued1, _minued2
.data
_subtrahend_1:
.space 16
_minuend_1:
.space 16
_minuend_2:
.space 16
_subtrahend_2:
.space 16
_sub1:
.long _minuend_1 - _subtrahend_1
.space 12
_sub2:
.long _minuend_2 - _subtrahend_2
.space 12
_sub3:
.quad _minuend_1 - _subtrahend_1
.space 8
_sub4:
.quad _minuend_2 - _subtrahend_2
.text
.p2align 2
_main:
ret