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117 lines
2.6 KiB
ArmAsm
117 lines
2.6 KiB
ArmAsm
/* Copyright (C) 1999-2017 Free Software Foundation, Inc.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _ERRNO_H
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#include <bits/errno.h>
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ENTRY(__syscall_error)
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#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
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/* We translate the system's EWOULDBLOCK error into EAGAIN.
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The GNU C library always defines EWOULDBLOCK==EAGAIN.
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EWOULDBLOCK_sys is the original number. */
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mov.l .L1, r1
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cmp/eq r1, r0
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bf skip
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nop
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mov.l .L2, r0
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skip:
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#endif
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/* Store it in errno... */
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#ifndef SHARED
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#ifndef _LIBC_REENTRANT
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mov.l .L3, r1
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mov.l r0, @r1
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#else
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mov.l .L3, r1
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sts.l pr, @-r15
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (pr, 0)
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mov.l r0, @-r15
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cfi_adjust_cfa_offset (4)
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jsr @r1
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nop
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mov.l @r15+, r1
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+, pr
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cfi_adjust_cfa_offset (-4)
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cfi_restore (pr)
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mov.l r1, @r0
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#endif
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#else
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mov.l r12, @-r15
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (r12, 0)
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#ifndef _LIBC_REENTRANT
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mov r0, r2
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mov.l 0f, r12
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mova 0f, r0
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add r0, r12
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mov.l .L3, r0
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mov.l @(r0,r12), r1
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mov.l r2, @r1
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#else
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mov.l r0, @-r15
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cfi_adjust_cfa_offset (4)
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sts.l pr, @-r15
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cfi_adjust_cfa_offset (4)
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cfi_rel_offset (pr, 0)
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mov.l 0f, r12
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mova 0f, r0
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add r0, r12
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mov.l .L3, r1
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mova .L3, r0
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add r0, r1
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jsr @r1
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nop
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lds.l @r15+, pr
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cfi_adjust_cfa_offset (-4)
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cfi_restore (pr)
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mov.l @r15+, r1
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cfi_adjust_cfa_offset (-4)
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mov.l r1, @r0
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#endif
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mov.l @r15+, r12
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cfi_adjust_cfa_offset (-4)
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cfi_restore (r12)
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#endif
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/* And just kick back a -1. */
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rts
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mov #-1, r0
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.align 2
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#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
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.L1: .long EWOULDBLOCK_sys
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.L2: .long EAGAIN
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#endif
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#ifndef SHARED
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#ifndef _LIBC_REENTRANT
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.L3: .long C_SYMBOL_NAME(errno)
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#else
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.L3: .long C_SYMBOL_NAME(__errno_location)
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#endif
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#else
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0:
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.long _GLOBAL_OFFSET_TABLE_
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#ifndef _LIBC_REENTRANT
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.L3: .long C_SYMBOL_NAME(errno@GOT)
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#else
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.L3: .long C_SYMBOL_NAME(__errno_location@PLT)
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#endif
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#endif
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END(__syscall_error)
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