| 1 | // Test that basic ELF 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 | .text |
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| 11 | .globl main |
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| 12 | .p2align 2 |
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| 13 | .type main,@function |
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| 14 | main: |
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| 15 | |
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| 16 | adrp x8, :got:x |
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| 17 | ldr x8, [x8, :got_lo12:x] |
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| 18 | ldr w0, [x8] |
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| 19 | ret |
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| 20 | .Lfunc_end0: |
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| 21 | .size main, .Lfunc_end0-main |
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| 22 | |
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| 23 | // static initializer sets the value of 'x' to zero. |
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| 24 | |
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| 25 | .section .text.startup,"ax" ,@progbits |
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| 26 | .p2align 2 |
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| 27 | .type static_init,@function |
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| 28 | static_init: |
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| 29 | |
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| 30 | adrp x8, :got:x |
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| 31 | ldr x8, [x8, :got_lo12:x] |
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| 32 | str wzr, [x8] |
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| 33 | ret |
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| 34 | .Lfunc_end1: |
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| 35 | .size static_init, .Lfunc_end1-static_init |
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| 36 | |
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| 37 | .type x,@object |
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| 38 | .data |
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| 39 | .globl x |
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| 40 | .p2align 2 |
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| 41 | x: |
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| 42 | .word 1 |
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| 43 | .size x, 4 |
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| 44 | |
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| 45 | .section .init_array,"aw" ,@init_array |
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| 46 | .p2align 3 |
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| 47 | .xword static_init |
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| 48 | |
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