| /* Static library error handling code fragment for Nios II. |
| Copyright (C) 2015-2018 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> |
| |
| /* The following code is only used in the static library. In the shared |
| library, the error handling code is at the end of each function. */ |
| |
| #ifndef PIC |
| |
| /* In the static library, the syscall stubs jump here when they detect |
| an error. */ |
| |
| # undef CALL_MCOUNT |
| # define CALL_MCOUNT /* Don't insert the profiling call, it clobbers r2. */ |
| |
| # if IS_IN (libc) |
| # define SYSCALL_ERROR_ERRNO __libc_errno |
| # else |
| # define SYSCALL_ERROR_ERRNO errno |
| # endif |
| .text |
| ENTRY (__syscall_error) |
| nextpc r3 |
| 1: |
| movhi r8, %hiadj(_gp_got - 1b) |
| addi r8, r8, %lo(_gp_got - 1b) |
| add r3, r3, r8 |
| ldw r3, %tls_ie(SYSCALL_ERROR_ERRNO)(r3) |
| add r3, r23, r3 |
| stw r2, 0(r3) |
| movi r2, -1 |
| ret |
| END (__syscall_error) |
| #endif |
