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ee6189855a
equivalent, but shorter instructions. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/setcontext.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/swapcontext.S: Likewise. * sysdeps/unix/x86_64/sysdep.S: Likewise. * sysdeps/x86_64/strchr.S: Likewise. * sysdeps/x86_64/memset.S: Likewise. * sysdeps/x86_64/strcspn.S: Likewise. * sysdeps/x86_64/strcmp.S: Likewise. * sysdeps/x86_64/elf/start.S: Likewise. * sysdeps/x86_64/strspn.S: Likewise. * sysdeps/x86_64/dl-machine.h: Likewise. * sysdeps/x86_64/bsd-_setjmp.S: Likewise. * sysdeps/x86_64/bsd-setjmp.S: Likewise. * sysdeps/x86_64/strtok.S: Likewise.
91 lines
2.4 KiB
ArmAsm
91 lines
2.4 KiB
ArmAsm
/* Copyright (C) 2001, 2002, 2004, 2005 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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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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#include <bp-asm.h>
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#include <bp-sym.h>
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#include <tls.h>
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#ifdef IS_IN_rtld
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# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
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#endif
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.globl C_SYMBOL_NAME(errno)
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.globl syscall_error
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#undef syscall_error
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#ifdef NO_UNDERSCORES
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__syscall_error:
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#else
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syscall_error:
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#endif
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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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cmpq $EWOULDBLOCK_sys, %rax /* Is it the old EWOULDBLOCK? */
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jne notb /* Branch if not. */
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movl $EAGAIN, %eax /* Yes; translate it to EAGAIN. */
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notb:
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#endif
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#if USE___THREAD
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# ifdef PIC
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movq C_SYMBOL_NAME(errno@GOTTPOFF)(%rip), %rcx
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movl %eax, %fs:0(%rcx)
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# else
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movl %eax, %fs:C_SYMBOL_NAME(errno@TPOFF)
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# endif
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#elif !defined PIC
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# ifndef _LIBC_REENTRANT
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movl %eax, C_SYMBOL_NAME(errno)
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# else
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pushq %rax
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cfi_adjust_cfa_offset(8)
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PUSH_ERRNO_LOCATION_RETURN
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call BP_SYM (__errno_location)
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POP_ERRNO_LOCATION_RETURN
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popq %rcx
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cfi_adjust_cfa_offset(-8)
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movl %ecx, (%rax)
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# endif
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#else
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# if RTLD_PRIVATE_ERRNO
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leaq rtld_errno(%rip), %rcx
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movl %eax, (%rcx)
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# elif !defined _LIBC_REENTRANT
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movq C_SYMBOL_NAME(errno)@GOTPCREL(%rip), %rcx
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movl %eax, (%rcx)
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# else
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pushq %rax
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cfi_adjust_cfa_offset(8)
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PUSH_ERRNO_LOCATION_RETURN
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call C_SYMBOL_NAME (BP_SYM (__errno_location)@PLT)
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POP_ERRNO_LOCATION_RETURN
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popq %rcx
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cfi_adjust_cfa_offset(-8)
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movl %ecx, (%rax)
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# endif
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#endif
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movq $-1, %rax
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ret
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#undef __syscall_error
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END (__syscall_error)
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