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94 lines
1.9 KiB
ArmAsm
94 lines
1.9 KiB
ArmAsm
/* Copyright (C) 1993, 1996 Free Software Foundation, Inc.
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Contributed by Brendan Kehoe (brendan@zen.org).
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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
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdep.h>
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#include <features.h>
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.section .bss
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.globl errno
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.align 2
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errno: .space 4
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#ifdef __ELF__
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.type errno, @object
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.size errno, 4
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#endif
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.globl __errno
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__errno = errno
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.text
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.align 2
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#ifdef _LIBC_REENTRANT
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.globl __syscall_error
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.ent __syscall_error
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__syscall_error:
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ldgp gp, 0(t12)
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lda sp, -16(sp)
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.frame sp, 16, ra, 0
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stq ra, 0(sp)
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stq v0, 8(sp)
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.mask 0x4000001, -16
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.prologue 1
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/* Store into the "real" variable. */
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stl v0, errno
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/* Find our per-thread errno address */
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jsr ra, __errno_location
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/* Store the error value. */
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ldl t0, 8(sp)
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stl t0, 0(v0)
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/* And kick back a -1. */
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ldi v0, -1
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ldq ra, 0(sp)
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lda sp, 16(sp)
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ret
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.end __syscall_error
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/* A default non-threaded version of __errno_location that just returns
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the address of errno. */
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.weak __errno_location
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.ent __errno_location
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__errno_location:
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.frame sp, 0, ra
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ldgp gp, 0(t12)
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.mask 0, 0
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.prologue 1
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lda v0, errno
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ret
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.end __errno_location
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#else
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ENTRY(__syscall_error)
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ldgp gp, 0(t12)
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.prologue 1
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stl v0, errno
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lda v0, -1
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ret
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END(__syscall_error)
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#endif /* _LIBC_REENTRANT */
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