| /* |
| * Copyright (c) 2011 Aeroflex Gaisler |
| * |
| * BSD license: |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| |
| .text |
| .global _start, main, _end |
| |
| _start: |
| |
| #ifndef _FLAT |
| save %sp, -64, %sp |
| #else |
| add %sp, -72, %sp |
| st %o7, [%sp+64] |
| #endif |
| /* clear the bss */ |
| |
| sethi %hi(__bss_start),%g2 |
| or %g2,%lo(__bss_start),%g2 ! g2 = start of bss |
| sethi %hi(_end),%g3 |
| or %g3,%lo(_end),%g3 ! g3 = end of bss |
| mov %g0,%g1 ! so std has two zeros |
| sub %g3, %g2, %g3 |
| zerobss: |
| subcc %g3, 8, %g3 |
| bge,a zerobss |
| std %g0,[%g2+%g3] |
| |
| set _end, %o0 |
| st %g0,[%o0] |
| |
| call bdinit2 |
| nop |
| |
| call prelibchook |
| nop |
| |
| call _call_initcalls /* atexit uses __atexit lock */ |
| nop |
| |
| set _fini, %o0 |
| call atexit, 1 |
| nop |
| |
| call _init |
| nop |
| |
| call main |
| nop |
| call _exit |
| nop |
| #ifndef _FLAT |
| ret |
| restore |
| #else |
| ld [%sp+64], %o7 |
| retl |
| add %sp, 72, %sp |
| #endif |
| |
| .seg "data" |
| .global .bdata |
| .bdata: |
| .align 8 |
| .global _environ |
| _environ: |
| .word 1 |
| |
| |
| |