c3e4f3b231
The Mach kernel & codesign on arm64 macOS has strict requirements for alignment and sequence of segments and sections. Dyld probably is just as picky, though kernel & codesign reject malformed Mach-O files before dyld ever has a chance. I developed this diff by incrementally changing alignments & sequences to match the output of ld64. I stopped when my hello-world test program started working: `codesign --verify` succeded, and `execve(2)` didn't immediately fail with `errno == EBADMACHO` = `"Malformed Mach-O file"`. Differential Revision: https://reviews.llvm.org/D94935
61 lines
1.9 KiB
ArmAsm
61 lines
1.9 KiB
ArmAsm
# REQUIRES: x86
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libfoo.s -o %t/libfoo.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
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# RUN: %lld -dylib %t/libfoo.o -o %t/libfoo.dylib -lSystem
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# RUN: %lld %t/test.o %t/libfoo.dylib -o %t/test -lSystem
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# RUN: llvm-objdump --macho -d --no-show-raw-insn --indirect-symbols %t/test | FileCheck %s
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# CHECK: (__TEXT,__text) section
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# CHECK-NEXT: _main:
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# CHECK-NEXT: movq {{.*}}(%rip), %rax ## literal pool symbol address: _foo
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# CHECK-NEXT: movq {{.*}}(%rip), %rax ## literal pool symbol address: _bar
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# CHECK-NEXT: movq {{.*}}(%rip), %rax ## literal pool symbol address: _foo_tlv
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# CHECK-NEXT: movq {{.*}}(%rip), %rax ## literal pool symbol address: _bar_tlv
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# CHECK-NEXT: callq {{.*}} ## symbol stub for: _foo_fn
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# CHECK-NEXT: callq {{.*}} ## symbol stub for: _bar_fn
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# CHECK-NEXT: retq
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# CHECK: Indirect symbols for (__TEXT,__stubs) 2 entries
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# CHECK-NEXT: address index name
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# CHECK-NEXT: _bar_fn
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# CHECK-NEXT: _foo_fn
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# CHECK-NEXT: Indirect symbols for (__DATA_CONST,__got) 3 entries
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# CHECK-NEXT: address index name
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# CHECK-NEXT: _bar
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# CHECK-NEXT: _foo
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# CHECK-NEXT: _stub_binder
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# CHECK-NEXT: Indirect symbols for (__DATA,__la_symbol_ptr) 2 entries
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# CHECK-NEXT: address index name
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# CHECK-NEXT: _bar_fn
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# CHECK-NEXT: _foo_fn
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# CHECK-NEXT: Indirect symbols for (__DATA,__thread_ptrs) 2 entries
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# CHECK-NEXT: address index name
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# CHECK-NEXT: _bar_tlv
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# CHECK-NEXT: _foo_tlv
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#--- libfoo.s
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.globl _foo, _foo_fn, _bar, _bar_fn
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_foo:
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_foo_fn:
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_bar:
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_bar_fn:
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.section __DATA,__thread_vars,thread_local_variables
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.globl _foo_tlv, _bar_tlv
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_foo_tlv:
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_bar_tlv:
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#--- test.s
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.globl _main
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_main:
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movq _foo@GOTPCREL(%rip), %rax
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movq _bar@GOTPCREL(%rip), %rax
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mov _foo_tlv@TLVP(%rip), %rax
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mov _bar_tlv@TLVP(%rip), %rax
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callq _foo_fn
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callq _bar_fn
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ret
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