diff options
Diffstat (limited to 'libgloss/sparc_leon/contextswitch_asm.S')
| -rw-r--r-- | libgloss/sparc_leon/contextswitch_asm.S | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/libgloss/sparc_leon/contextswitch_asm.S b/libgloss/sparc_leon/contextswitch_asm.S deleted file mode 100644 index 755efa2c7..000000000 --- a/libgloss/sparc_leon/contextswitch_asm.S +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Copyright (c) 2011 Aeroflex Gaisler - * - * BSD license: - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - - -#include <asm-leon/leon.h> -#include <asm-leon/leonstack.h> -#include <asm-leon/contextswitch.h> -#include <asm-leon/winmacros.h> - -/* This asm code relies on the following offsets (setjmp.h): -#define THREAD_JB_SP 0 -#define THREAD_JB_PC 1 -#define THREAD_JB_PSR 8 -#define THREAD_JB_WIM 9 */ - - /* Number of register windows */ - .global _nwindows_min1, _nwindows - - .text - .global _switch_to -_switch_to: - -#ifndef _FLAT - !mov %o0,%i0 /* propagate env on restore */ - !mov %o1,%i1 /* propagate val on restore */ - !restore - mov %o0,%g7 - mov %o1,%g3 /* former %%i1 (val) */ - - sethi %hi(_nwindows_min1), %g4 /* flush registers */ - ld [%g4+%lo(_nwindows_min1)], %g4 -1: save %sp, -SF_REGS_SZ, %sp !NWINDOWS-1 times - sub %g4,1,%g4 - cmp %g0,%g4 - bne 1b - nop -#else - mov %o0,%g7 - mov %o1,%g3 /* former %%i1 (val) */ - RW_STORE(sp) -#endif - - ldd [%g7+THREAD_JB_PSR*4], %g4 /* load psr,wim */ - wr %g4, 0x20, %psr - nop - nop - nop - ldd [%g7 +THREAD_JB_SP*4], %sp /* load sp, pc to jump to */ - wr %g5, 0x0, %wim - - RW_LOAD(sp) /* restore window */ - wr %g4, 0x00, %psr - nop - nop - nop - - jmp %o7 + 8 /* success */ - mov %g3, %o0 /* return %%g3 */ - - - - .text - .global thread_setjmp, _do_thread_setjmp -thread_setjmp: - -#ifdef _FLAT - RW_STORE(sp) /* store window */ -#endif - -! RW_STORE(sp) /* store window for _FLAT and normal, SWITCH_TO_STACK in pthread need this*/ - - mov %psr,%o2 -#ifndef _SOFT_FLOAT - set 0x1000,%o3 - andn %o2,%o3,%o2 !disable fpu -#endif - std %sp,[%o0] !THREAD_JB_SP - st %o2,[%o0+(8*4)] !THREAD_JB_PSR - ba _do_thread_setjmp - nop |