| /* Copyright (C) 1993, 1995, 1997, 2005 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <sysdep.h> |
| |
| #ifndef SYS_brk |
| #define SYS_brk 17 |
| #endif |
| |
| #ifndef C_SYMBOL_NAME |
| #define C_SYMBOL_NAME(name) _##name |
| #endif |
| |
| .data |
| .global C_SYMBOL_NAME(__curbrk) |
| C_LABEL(__curbrk) |
| .long C_SYMBOL_NAME(_end) |
| |
| .text |
| ENTRY (__brk) |
| add %o0, 7, %o0 |
| andn %o0, 7, %o0 |
| mov SYS_brk, %g1 |
| mov %o0, %o1 /* Save rounded value. */ |
| ta %g0 |
| bcs error |
| sethi %hi(C_SYMBOL_NAME(__curbrk)), %g1 |
| st %o1, [%g1 + %lo(C_SYMBOL_NAME(__curbrk))] |
| ret |
| error: sethi %hi(C_SYMBOL_NAME(errno)), %g1 |
| st %o0, [%g1 + %lo(C_SYMBOL_NAME(errno))] |
| sub %g0, 1, %o0 |
| retl |
| nop /* Fill the delay slot. */ |
| |
| weak_alias (__brk, brk) |
