61 lines
2.1 KiB
ArmAsm
61 lines
2.1 KiB
ArmAsm
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/* Copyright (C) 2000 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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.text
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ENTRY(__mmap)
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/* Save registers and setup stack frame. */
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stm %r6,%r15,24(%r15)
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lr %r1,%r15
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l %r0,4(0,%r15) /* load eos */
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ahi %r15,-120 /* buy stack space */
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st %r1,0(0,%r15) /* store back chain */
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st %r0,4(0,%r15) /* store eos */
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/* Store parameters on stack, because old_mmap
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* takes only one parameter: a pointer to the parameter area
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*/
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mvc 0x74(4,%r15),216(%r15) /* move 'offset' */
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st %r6,0x70(0,%r15) /* store 'fd' */
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st %r5,0x6C(0,%r15) /* store 'flags' */
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st %r4,0x68(0,%r15) /* store 'prot' */
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st %r3,0x64(0,%r15) /* store 'length' */
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st %r2,0x60(0,%r15) /* store 'start' */
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la %r2,0x60(0,%r15) /* load address of parameter list */
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/* Do the system call trap. */
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svc SYS_ify(mmap)
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l %r15,0(0,%r15) /* load back chain */
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lm %r6,%r15,24(%r15) /* load registers */
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/* check gpr 2 for error */
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lhi %r0,-4096
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clr %r2,%r0
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jnl SYSCALL_ERROR_LABEL
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/* Successful; return the syscall's value. */
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br %r14
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PSEUDO_END (__mmap)
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weak_alias (__mmap, mmap)
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