From b8fcdddcbb192fc367ff04bbd753b9deb69b09f3 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 28 May 2016 18:12:58 +0200 Subject: nios2: sync support with glibc Only static linking is supported for now. More debugging and analyzing for ld.so, TLS and NPTL is required. But at least you can bootup a static root fileystem in Qemu. --- libc/sysdeps/linux/nios2/setjmp.S | 101 ++++++++++++++++++++------------------ 1 file changed, 54 insertions(+), 47 deletions(-) (limited to 'libc/sysdeps/linux/nios2/setjmp.S') diff --git a/libc/sysdeps/linux/nios2/setjmp.S b/libc/sysdeps/linux/nios2/setjmp.S index 6071685b0..8050dba89 100644 --- a/libc/sysdeps/linux/nios2/setjmp.S +++ b/libc/sysdeps/linux/nios2/setjmp.S @@ -1,49 +1,56 @@ -/* - * libc/sysdeps/linux/nios2/setjmp.S - * - * Copyright (C) 2004,05,06 Microtronix Datacom Ltd - * - * This file is subject to the terms and conditions of the GNU Lesser - * General Public License. See the file COPYING.LIB in the main - * directory of this archive for more details. - * - * Written by Wentao Xu - * - */ - -#include +/* setjmp for Nios II. + Copyright (C) 1991-2016 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 + . */ + +#include #include -.globl __sigsetjmp -.type __sigsetjmp,@function -.balign 4 - -__sigsetjmp: - stw r16, (JB_REGS+ 0)(r4) - stw r17, (JB_REGS+ 4)(r4) - stw r18, (JB_REGS+ 8)(r4) - stw r19, (JB_REGS+12)(r4) - stw r20, (JB_REGS+16)(r4) - stw r21, (JB_REGS+20)(r4) - stw r22, (JB_REGS+24)(r4) - stw r23, (JB_REGS+28)(r4) - - stw ra, JB_PC(r4) - stw sp, JB_SP(r4) - stw fp, JB_FP(r4) - stw gp, JB_GP(r4) - -#ifdef __UCLIBC_HAS_FPU__ - SAVE_FPU r4 JB_FPREGS -#endif - -#ifdef __PIC__ - /* just pray 16 bit offset is enough */ - br __sigjmp_save -#else - movhi r8, %hi(__sigjmp_save) - ori r8, r8, %lo(__sigjmp_save) - jmp r8 -#endif - -.size __sigsetjmp,.-__sigsetjmp + .text +ENTRY(setjmp) + movi r5, 1 + br __sigsetjmp +END(setjmp) +libc_hidden_def(setjmp) + +ENTRY(_setjmp) + mov r5, zero + br __sigsetjmp +END(_setjmp) +libc_hidden_def(_setjmp) + +/* Save the current program position in ENV and return 0. */ +ENTRY(__sigsetjmp) + stw r16, (JB_R16*4)(r4) + stw r17, (JB_R17*4)(r4) + stw r18, (JB_R18*4)(r4) + stw r19, (JB_R19*4)(r4) + stw r20, (JB_R20*4)(r4) + stw r21, (JB_R21*4)(r4) + stw r22, (JB_R22*4)(r4) + stw fp, (JB_FP*4)(r4) + stw ra, (JB_RA*4)(r4) + stw sp, (JB_SP*4)(r4) + /* Save the signal mask if requested. */ + nextpc r2 + +1: movhi r3, %hiadj(__sigjmp_save - 1b) + addi r3, r3, %lo(__sigjmp_save - 1b) + add r2, r2, r3 + jmp r2 + +END(__sigsetjmp) +libc_hidden_def(__sigsetjmp) -- cgit v1.2.3