diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S new file mode 100644 index 0000000000..8ecbb548a2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S @@ -0,0 +1,54 @@ +/* brk system call for Linux/ppc. + Copyright (C) 1995, 1996, 1997, 1999, 2000 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> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <bp-sym.h> +#include <bp-asm.h> + + .comm __curbrk,4,4 + .section ".text" +ENTRY (BP_SYM (__brk)) + DISCARD_BOUNDS (r3) /* the bounds are meaningless, so toss 'em */ + + stwu r1,-16(r1) + stw r3,8(r1) + DO_CALL(SYS_ify(brk)) + lwz r6,8(r1) +#ifdef PIC + mflr r4 + bl _GLOBAL_OFFSET_TABLE_@local-4 + mflr r5 + lwz r5,__curbrk@got(r5) + mtlr r4 + stw r3,0(r5) +#else + lis r4,__curbrk@ha + stw r3,__curbrk@l(r4) +#endif + cmplw r6,r3 + addi r1,r1,16 + li r3,0 + blelr+ + li r3,ENOMEM + b JUMPTARGET(__syscall_error) +END (BP_SYM (__brk)) + +weak_alias (BP_SYM (__brk), BP_SYM (brk)) |