/* Copyright (C) 1991-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <sysdep.h> #define _ERRNO_H #include <bits/errno.h> #if IS_IN (rtld) # include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */ #endif .globl C_SYMBOL_NAME(errno) .globl syscall_error __syscall_error: #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN /* We translate the system's EWOULDBLOCK error into EAGAIN. The GNU C library always defines EWOULDBLOCK==EAGAIN. EWOULDBLOCK_sys is the original number. */ cmpl $EWOULDBLOCK_sys, %eax /* Is it the old EWOULDBLOCK? */ jne notb /* Branch if not. */ movl $EAGAIN, %eax /* Yes; translate it to EAGAIN. */ notb: #endif #ifndef PIC # ifndef NO_TLS_DIRECT_SEG_REFS movl %eax, %gs:C_SYMBOL_NAME(errno@NTPOFF) # else movl %gs:0, %ecx movl %eax, C_SYMBOL_NAME(errno@NTPOFF)(%ecx) # endif #else /* The caller has pushed %ebx and then set it up to point to the GOT before calling us through the PLT. */ movl C_SYMBOL_NAME(errno@GOTNTPOFF)(%ebx), %ecx /* Pop %ebx value saved before jumping here. */ popl %ebx # ifndef NO_TLS_DIRECT_SEG_REFS addl %gs:0, %ecx movl %eax, (%ecx) # else movl %eax, %gs:0(%ecx) # endif #endif movl $-1, %eax ret #undef __syscall_error END (__syscall_error)