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105 lines
2.8 KiB
ArmAsm
105 lines
2.8 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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/* Because the Linux version is in fact m68k/ELF and the start.? file
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for this system (sysdeps/m68k/elf/start.S) is also used by The Hurd
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and therefore this files must not contain the definition of the
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`errno' variable (I don't know why, ask Roland), we have to define
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it somewhere else.
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...and this place is here. */
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.bss
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.globl errno
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.type errno,@object
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.size errno,4
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errno:
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.space 4
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weak_alias (errno, _errno)
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/* The following code is only used in the shared library when we
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compile the reentrant version. Otherwise each system call defines
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each own version. */
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/* The syscall stubs jump here when they detect an error. */
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#undef CALL_MCOUNT
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#define CALL_MCOUNT
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.text
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ENTRY(__syscall_error)
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#ifndef PIC
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#ifndef _LIBC_REENTRANT
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lcr %r2,%r2
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basr %r1,0
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.L0: l %r1,.L1-.L0(%r1)
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st %r2,0(0,%r1)
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lhi %r2,-1
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br %r14
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.L1: .long errno
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#else
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stm %r11,%r15,44(%r15)
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lr %r0,%r15
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ahi %r15,-96
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st %r0,0(%r15)
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lcr %r11,%r2
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basr %r13,0
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.L0: l %r1,.L1-.L0(%r13)
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basr %r14,%r1
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st %r11,0(%r2)
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lhi %r2,-1
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l %r15,0(%r15)
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lm %r11,%r15,44(%r15)
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br %r14
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.L1: .long __errno_location
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#endif
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#else
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#ifndef _LIBC_REENTRANT
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basr %r1,0
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.L0: al %r1,.L1-.L0(%r1)
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l %r1,errno@GOT12(%r1)
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lcr %r2,%r2
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st %r2,0(0,%r1)
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lhi %r2,-1
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br %r14
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.L1: .long _GLOBAL_OFFSET_TABLE_-0b
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#else
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stm %r11,%r15,44(%r15)
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lr %r0,%r15
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ahi %r15,-96
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st %r0,0(%r15)
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lcr %r11,%r2
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basr %r13,0
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.L0: l %r12,.L1-.L0(%r13)
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ar %r12,%r13
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l %r14,.L2-.L0(%r13)
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bas %r14,0(%r14,%r13)
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st %r11,0(0,%r2)
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lhi %r2,-1
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l %r15,0(%r15)
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lm %r11,%r15,44(%r15)
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br %r14
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.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0
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.L2: .long __errno_location@PLT - .L0
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#endif
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#endif
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END (__syscall_error)
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