| 1 | // Test that basic MachO static initializers work. The main function in this |
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| 2 | // test returns the value of 'x', which is initially 1 in the data section, |
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| 3 | // and reset to 0 if the _static_init function is run. If the static initializer |
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| 4 | // does not run then main will return 1, causing the test to be treated as a |
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| 5 | // failure. |
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| 6 | // |
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| 7 | // RUN: %clang -c -o %t %s |
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| 8 | // RUN: %llvm_jitlink %t |
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| 9 | |
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| 10 | .section __TEXT,__text,regular,pure_instructions |
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| 11 | .build_version macos, 12, 0 sdk_version 12, 0 |
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| 12 | |
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| 13 | # static initializer sets the value of 'x' to zero. |
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| 14 | .globl _static_init |
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| 15 | .p2align 2 |
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| 16 | _static_init: |
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| 17 | .cfi_startproc |
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| 18 | ; %bb.0: |
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| 19 | adrp x8, _x@PAGE |
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| 20 | str wzr, [x8, _x@PAGEOFF] |
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| 21 | ret |
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| 22 | .cfi_endproc |
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| 23 | |
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| 24 | # main returns the value of 'x', which is defined as 1 in the data section.. |
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| 25 | .globl _main |
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| 26 | .p2align 2 |
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| 27 | _main: |
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| 28 | sub sp, sp, #16 |
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| 29 | str wzr, [sp, #12] |
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| 30 | adrp x8, _x@PAGE |
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| 31 | ldr w0, [x8, _x@PAGEOFF] |
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| 32 | add sp, sp, #16 |
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| 33 | ret |
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| 34 | |
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| 35 | .section __DATA,__data |
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| 36 | .globl _x |
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| 37 | .p2align 2 |
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| 38 | _x: |
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| 39 | .long 1 |
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| 40 | |
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| 41 | .section __DATA,__mod_init_func,mod_init_funcs |
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| 42 | .p2align 3 |
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| 43 | .quad _static_init |
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| 44 | .subsections_via_symbols |
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