1 | // Test that basic MachO static initializers work. The main function in this |
2 | // test returns the value of 'x', which is initially 1 in the data section, |
3 | // and reset to 0 if the _static_init function is run. If the static initializer |
4 | // does not run then main will return 1, causing the test to be treated as a |
5 | // failure. |
6 | // |
7 | // RUN: %clang -c -o %t %s |
8 | // RUN: %llvm_jitlink %t |
9 | |
10 | .section __TEXT,__text,regular,pure_instructions |
11 | .build_version macos, 11, 0 |
12 | |
13 | # main returns the value of 'x', which is defined as 1 in the data section.. |
14 | .globl _main |
15 | .p2align 4, 0x90 |
16 | _main: |
17 | movl _x(%rip), %eax |
18 | retq |
19 | |
20 | # static initializer sets the value of 'x' to zero. |
21 | .section __TEXT,__StaticInit,regular,pure_instructions |
22 | .p2align 4, 0x90 |
23 | _static_init: |
24 | movl $0, _x(%rip) |
25 | retq |
26 | |
27 | .section __DATA,__data |
28 | .globl _x |
29 | .p2align 2 |
30 | _x: |
31 | .long 1 |
32 | |
33 | .section __DATA,__mod_init_func,mod_init_funcs |
34 | .p2align 3 |
35 | .quad _static_init |
36 | |
37 | .subsections_via_symbols |
38 | |