derek.holloway
7502bf64a4
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75 lines
2.6 KiB
ArmAsm
75 lines
2.6 KiB
ArmAsm
# REQUIRES: x86
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# RUN: mkdir -p %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libhello.s \
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# RUN: -o %t/libhello.o
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# RUN: %lld -lSystem -dylib -install_name \
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# RUN: @executable_path/libhello.dylib %t/libhello.o -o %t/libhello.dylib
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/test.o
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# RUN: %lld -lSystem -o %t/test %t/test.o -L%t -lhello
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# RUN: llvm-objdump --macho --full-contents --rebase --bind %t/test | FileCheck %s --check-prefixes=CHECK,PIE --match-full-lines
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# RUN: %lld -no_pie -data_const -lSystem -o %t/test %t/test.o -L%t -lhello
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# RUN: llvm-objdump --macho --full-contents --rebase --bind %t/test | FileCheck %s --check-prefixes=CHECK,NO-PIE --match-full-lines
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## Check that the GOT references the cstrings. --full-contents displays the
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## address offset and the contents at that address very similarly, so am using
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## --match-full-lines to make sure we match on the right thing.
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# CHECK: Contents of section __TEXT,__cstring:
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# CHECK-NEXT: 100000444 {{.*}}
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## 1st 8 bytes refer to the start of __cstring + 0xe, 2nd 8 bytes refer to the
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## start of __cstring
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# CHECK: Contents of section __DATA_CONST,__got:
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# CHECK-NEXT: [[#%X,ADDR:]] 52040000 01000000 44040000 01000000 {{.*}}
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# CHECK-NEXT: [[#ADDR + 16]] 00000000 00000000 {{.*}}
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## Check that the rebase table is empty.
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# NO-PIE: Rebase table:
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# NO-PIE-NEXT: segment section address type
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# PIE: Rebase table:
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# PIE-NEXT: segment section address type
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# PIE-NEXT: __DATA_CONST __got 0x[[#%X,ADDR:]] pointer
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# PIE-NEXT: __DATA_CONST __got 0x[[#ADDR + 8]] pointer
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## Check that a non-locally-defined symbol is still bound at the correct offset:
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# CHECK-EMPTY:
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# CHECK-NEXT: Bind table:
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# CHECK-NEXT: segment section address type addend dylib symbol
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# CHECK-NEXT: __DATA_CONST __got 0x[[#ADDR+16]] pointer 0 libhello _hello_its_me
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.globl _main
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.text
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_main:
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movl $0x2000004, %eax # write() syscall
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mov $1, %rdi # stdout
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movq _hello_its_me@GOTPCREL(%rip), %rsi
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mov $15, %rdx # length of str
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syscall
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movl $0x2000004, %eax # write() syscall
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mov $1, %rdi # stdout
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## We use pushq/popq here instead of movq in order to avoid relaxation.
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pushq _hello_world@GOTPCREL(%rip)
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popq %rsi
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mov $13, %rdx # length of str
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syscall
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movl $0x2000004, %eax # write() syscall
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mov $1, %rdi # stdout
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pushq _goodbye_world@GOTPCREL(%rip)
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popq %rsi
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mov $15, %rdx # length of str
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syscall
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mov $0, %rax
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ret
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.section __TEXT,__cstring
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_hello_world:
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.asciz "Hello world!\n"
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_goodbye_world:
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.asciz "Goodbye world!\n"
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