| The Android Open Source Project | 1dc9e47 | 2009-03-03 19:28:35 -0800 | [diff] [blame] | 1 | .text |
| 2 | .align 4 |
| 3 | .type __bionic_call_ctors, @function |
| 4 | |
| 5 | /* |
| 6 | * The CTORS_LIST is marked by -1 (start) and 0 (end). |
| 7 | * We mark the end of the .ctors section with the __CTOR_END__ section so |
| 8 | * that we can just iterate backwards from it until we hit -1 and execute |
| 9 | * all the function pointers. This seems to be the way to do it for SVR4 |
| 10 | * derived systems. |
| 11 | */ |
| 12 | __bionic_call_ctors: |
| 13 | pushl %esi |
| 14 | mov $__CTOR_END__, %esi |
| 15 | |
| 16 | 0: |
| 17 | /* now grab the next function pointer and check if its -1. If not, |
| 18 | * call it, otherwise we're done. We use %esi since it's callee saved. |
| 19 | */ |
| 20 | subl $4, %esi |
| 21 | mov (%esi), %eax |
| 22 | cmp $0xffffffff, %eax |
| 23 | je 1f |
| 24 | call *%eax |
| 25 | jmp 0b |
| 26 | |
| 27 | 1: |
| 28 | /* we're done */ |
| 29 | popl %esi |
| 30 | ret |
| 31 | |
| 32 | .section .init |
| 33 | .align 4 |
| 34 | call __bionic_call_ctors |
| 35 | ret |
| 36 | |
| 37 | .section .ctors, "aw", @progbits |
| 38 | .align 4 |
| 39 | .type __CTOR_END__, @object |
| 40 | __CTOR_END__: |
| 41 | .long 0 |
| 42 | |
| 43 | .section .init_array, "aw" |
| 44 | .long 0 |
| 45 | |
| 46 | .section .fini_array, "aw" |
| 47 | .long 0 |