319181f767
References from thread-local variable sections are treated as offsets relative to the start of the thread-local data memory area, which is initialized via copying all the TLV data sections (which are all contiguous). If later data sections require a greater alignment than earlier ones, the offsets of data within those sections won't be guaranteed to aligned unless we normalize alignments. We therefore use the largest alignment for all TLV data sections. Reviewed By: #lld-macho, int3 Differential Revision: https://reviews.llvm.org/D116263
133 lines
4.9 KiB
ArmAsm
133 lines
4.9 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t; split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/regular.s -o %t/regular.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/tbss.s -o %t/tbss.o
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# RUN: %lld -lSystem -no_pie -o %t/regular-no-pie %t/regular.o
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# RUN: llvm-otool -hv %t/regular-no-pie | FileCheck %s --check-prefix=HEADER
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# RUN: llvm-objdump -d --bind --rebase %t/regular-no-pie | FileCheck %s --check-prefixes=REG,LINKEDIT
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# RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-no-pie | \
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# RUN: FileCheck %s --check-prefix=REG-TLVP
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# RUN: %lld -lSystem %t/regular.o -o %t/regular-pie
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# RUN: llvm-otool -hv %t/regular-pie | FileCheck %s --check-prefix=HEADER
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# RUN: llvm-objdump -d --bind --rebase %t/regular-pie | FileCheck %s --check-prefixes=REG,LINKEDIT
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# RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-pie | \
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# RUN: FileCheck %s --check-prefix=REG-TLVP
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# RUN: %lld -lSystem %t/tbss.o -o %t/tbss -e _f
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# RUN: llvm-objdump -d --bind --rebase %t/tbss | FileCheck %s --check-prefixes=TBSS,LINKEDIT
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# RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/tbss | \
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# RUN: FileCheck %s --check-prefix=TBSS-TLVP
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# RUN: %lld -lSystem %t/regular.o %t/tbss.o -o %t/regular-and-tbss
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# RUN: llvm-objdump -d --bind --rebase %t/regular-and-tbss | FileCheck %s --check-prefixes=REG,TBSS,LINKEDIT
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# RUN: llvm-objdump --macho --section=__DATA,__thread_vars %t/regular-and-tbss | \
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# RUN: FileCheck %s --check-prefix=REG-TBSS-TLVP
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# RUN: llvm-objdump --section-headers %t/regular-and-tbss | FileCheck %s --check-prefix=SECTIONS
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## Check that we always put __thread_bss immediately after __thread_data,
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## regardless of the order of the input files.
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# RUN: %lld -lSystem %t/tbss.o %t/regular.o -o %t/regular-and-tbss
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# RUN: llvm-objdump --section-headers %t/regular-and-tbss | FileCheck %s --check-prefix=SECTIONS
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# HEADER: MH_HAS_TLV_DESCRIPTORS
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# REG: <_main>:
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# REG-NEXT: leaq {{.*}}(%rip), %rax ## {{.*}} <_foo>
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# REG-NEXT: leaq {{.*}}(%rip), %rax ## {{.*}} <_bar>
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# REG-NEXT: retq
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# TBSS: <_f>:
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# TBSS-NEXT: leaq {{.*}}(%rip), %rax ## {{.*}} <_baz>
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# TBSS-NEXT: leaq {{.*}}(%rip), %rax ## {{.*}} <_qux>
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# TBSS-NEXT: leaq {{.*}}(%rip), %rax ## {{.*}} <_hoge>
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# TBSS-NEXT: retq
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# REG-TLVP: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TLVP-NEXT: 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
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# TBSS-TLVP: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 00
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# REG-TBSS-TLVP: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 28 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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# REG-TBSS-TLVP-NEXT: 30 00 00 00 00 00 00 00
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## Make sure we don't emit rebase opcodes for relocations in __thread_vars.
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# LINKEDIT: Rebase table:
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# LINKEDIT-NEXT: segment section address type
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# LINKEDIT-EMPTY:
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# LINKEDIT-NEXT: Bind table:
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# LINKEDIT: __DATA __thread_vars 0x{{[0-9a-f]*}} pointer 0 libSystem __tlv_bootstrap
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# LINKEDIT: __DATA __thread_vars 0x{{[0-9a-f]*}} pointer 0 libSystem __tlv_bootstrap
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## Make sure we have an odd number of tlv vars, and that the __thread_vars
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## section starts 16-bytes aligned. This is the setup required for __thread_data
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## not to be automatically 16-bytes aligned, ensuring the linker does its
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## expected job of aligning _hoge$tlv$init.
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# SECTIONS: __thread_vars {{[0-9]+}}8 {{[0-9]+}}0
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# SECTIONS: __thread_data
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# SECTIONS: more_thread_data
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# SECTIONS-NEXT: __thread_bss
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#--- regular.s
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.globl _main
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_main:
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mov _foo@TLVP(%rip), %rax
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mov _bar@TLVP(%rip), %rax
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ret
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.section __DATA,__thread_data,thread_local_regular
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_foo$tlv$init:
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.quad 123
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.section __DATA,more_thread_data,thread_local_regular
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_bar$tlv$init:
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.quad 123
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.section __DATA,__thread_vars,thread_local_variables
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.globl _foo, _bar
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_foo:
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.quad __tlv_bootstrap
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.quad 0
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.quad _foo$tlv$init
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_bar:
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.quad __tlv_bootstrap
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.quad 0
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.quad _bar$tlv$init
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#--- tbss.s
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.globl _f
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_f:
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mov _baz@TLVP(%rip), %rax
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mov _qux@TLVP(%rip), %rax
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mov _hoge@TLVP(%rip), %rax
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ret
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.tbss _baz$tlv$init, 8, 3
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.tbss _qux$tlv$init, 8, 3
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.tbss _hoge$tlv$init, 16, 4
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.section __DATA,__thread_vars,thread_local_variables
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_baz:
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.quad __tlv_bootstrap
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.quad 0
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.quad _baz$tlv$init
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_qux:
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.quad __tlv_bootstrap
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.quad 0
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.quad _qux$tlv$init
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_hoge:
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.quad __tlv_bootstrap
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.quad 0
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.quad _hoge$tlv$init
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