624ea349d7
When the data-in-code entries are in separate sections, they are not guaranteed to be sorted. In particular, 68b1cc36f3df marked some libc++ string functions as noinline, which leads to global ctors involving strings now producing data-in-code sections in __TEXT,__StaticInit, which is why this now happens in practice. Since data-in-code entries are relatively rare and small, just sort them. No observed performance impact. See also crbug.com/41487860
86 lines
1.8 KiB
ArmAsm
86 lines
1.8 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/foo.s -o %t/foo.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/bar.s -o %t/bar.o
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# RUN: %lld -lSystem %t/foo.o %t/bar.o -o %t/main.exe
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# RUN: llvm-otool -l %t/main.exe > %t/objdump
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# RUN: llvm-otool -Gv %t/main.exe >> %t/objdump
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# RUN: FileCheck %s < %t/objdump
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# CHECK-LABEL: sectname __text
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# CHECK-NEXT: segname __TEXT
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# CHECK-NEXT: addr
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# CHECK-NEXT: size
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# CHECK-NEXT: offset [[#%,TEXT:]]
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# CHECK-LABEL: cmd LC_DATA_IN_CODE
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# CHECK-NEXT: cmdsize 16
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# CHECK-NEXT: dataoff
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# CHECK-NEXT: datasize 24
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# CHECK-LABEL: Data in code table (3 entries)
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# CHECK-NEXT: offset length kind
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# CHECK-NEXT: [[#%x,TEXT + 28]] 24 JUMP_TABLE32
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# CHECK-NEXT: [[#%x,TEXT + 68]] 8 JUMP_TABLE32
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# CHECK-NEXT: [[#%x,TEXT + 84]] 12 JUMP_TABLE32
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# RUN: %lld -lSystem %t/foo.o %t/bar.o -no_data_in_code_info -o %t/main.exe
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# RUN: llvm-otool -l %t/main.exe | FileCheck --check-prefix=OMIT %s
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# OMIT-NOT: LC_DATA_IN_CODE
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# RUN: %lld -lSystem %t/foo.o %t/bar.o -no_data_in_code_info -data_in_code_info -o %t/main.exe
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# RUN: llvm-otool -l %t/main.exe > %t/objdump
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# RUN: llvm-otool -Gv %t/main.exe >> %t/objdump
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# RUN: FileCheck %s < %t/objdump
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#--- foo.s
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.text
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.section __TEXT,__StaticInit,regular,pure_instructions
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.p2align 4, 0x90
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_some_init_function:
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retq
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.p2align 2, 0x90
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.data_region jt32
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.long 0
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.long 0
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.end_data_region
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.section __TEXT,__text,regular,pure_instructions
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.globl _main
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.p2align 4, 0x90
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_main:
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pushq %rbp
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movq %rsp, %rbp
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subq $16, %rsp
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movl $0, -4(%rbp)
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movb $0, %al
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callq _bar
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addq $16, %rsp
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popq %rbp
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retq
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.p2align 2, 0x90
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.data_region jt32
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.long 0
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.long 0
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.long 0
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.long 0
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.long 0
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.long 0
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.end_data_region
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#--- bar.s
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.text
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.globl _bar
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.p2align 4
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_bar:
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retq
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.p2align 2, 0x90
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.data_region jt32
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.long 0
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.long 0
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.long 0
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.end_data_region
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