diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S deleted file mode 100644 index 1aeca1b1a7..0000000000 --- a/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S +++ /dev/null @@ -1,214 +0,0 @@ -/* Save current context and install the given one. - Copyright (C) 2005 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <sysdep.h> - -#include "ucontext_i.h" - -/* int __swapcontext (ucontext_t *ouc, const ucontext_t *uc); */ - - .text - .align 5 -ENTRY(__swapcontext) - - /* Return value of getcontext. R0 is the only register whose - value is not preserved. */ - mov #0, r0 - mov.l r0, @(oR0,r4) - mov.l r1, @(oR1,r4) - mov.l r2, @(oR2,r4) - mov.l r3, @(oR3,r4) - mov.l r4, @(oR4,r4) - mov.l r5, @(oR5,r4) - mov.l r6, @(oR6,r4) - mov.l r7, @(oR7,r4) - mov r4, r0 - add #(oMACL+4), r0 - sts.l macl, @-r0 - sts.l mach, @-r0 - stc.l gbr, @-r0 - - /* Save T flag to SR. */ - movt r1 - mov.l r1, @-r0 - sts.l pr, @-r0 - - /* The return address of getcontext is the restart pc. */ - sts.l pr, @-r0 - - mov.l r15, @-r0 - mov.l r14, @-r0 - mov.l r13, @-r0 - mov.l r12, @-r0 - mov.l r11, @-r0 - mov.l r10, @-r0 - mov.l r9, @-r0 - mov.l r8, @-r0 - - mov r4, r0 - /* We need 2 add instruction because oFPUL+4 >= 127. */ - add #124,r0 - add #(oFPUL+4-124),r0 - sts.l fpul, @-r0 - sts.l fpscr, @-r0 - frchg - fmov.s fr15, @-r0 - fmov.s fr14, @-r0 - fmov.s fr13, @-r0 - fmov.s fr12, @-r0 - fmov.s fr11, @-r0 - fmov.s fr10, @-r0 - fmov.s fr9, @-r0 - fmov.s fr8, @-r0 - fmov.s fr7, @-r0 - fmov.s fr6, @-r0 - fmov.s fr5, @-r0 - fmov.s fr4, @-r0 - fmov.s fr3, @-r0 - fmov.s fr2, @-r0 - fmov.s fr1, @-r0 - fmov.s fr0, @-r0 - frchg - fmov.s fr15, @-r0 - fmov.s fr14, @-r0 - fmov.s fr13, @-r0 - fmov.s fr12, @-r0 - fmov.s fr11, @-r0 - fmov.s fr10, @-r0 - fmov.s fr9, @-r0 - fmov.s fr8, @-r0 - fmov.s fr7, @-r0 - fmov.s fr6, @-r0 - fmov.s fr5, @-r0 - fmov.s fr4, @-r0 - fmov.s fr3, @-r0 - fmov.s fr2, @-r0 - fmov.s fr1, @-r0 - fmov.s fr0, @-r0 - - mov r5, r8 - - /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask). */ - mov #oSIGMASK, r1 - extu.b r1, r1 - add r1, r5 - mov r4, r6 - add r1, r6 - mov #SIG_SETMASK, r4 - mov #+SYS_ify(sigprocmask), r3 - trapa #0x13 - mov r0, r1 - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lswapcontext_restore -.Lsyscall_error: - SYSCALL_ERROR_HANDLER -.Lpseudo_end: - rts - nop -.Lswapcontext_restore: - mov r8, r0 - add #(oFR0),r0 - fmov.s @r0+, fr0 - fmov.s @r0+, fr1 - fmov.s @r0+, fr2 - fmov.s @r0+, fr3 - fmov.s @r0+, fr4 - fmov.s @r0+, fr5 - fmov.s @r0+, fr6 - fmov.s @r0+, fr7 - fmov.s @r0+, fr8 - fmov.s @r0+, fr9 - fmov.s @r0+, fr10 - fmov.s @r0+, fr11 - fmov.s @r0+, fr12 - fmov.s @r0+, fr13 - fmov.s @r0+, fr14 - fmov.s @r0+, fr15 - frchg - fmov.s @r0+, fr0 - fmov.s @r0+, fr1 - fmov.s @r0+, fr2 - fmov.s @r0+, fr3 - fmov.s @r0+, fr4 - fmov.s @r0+, fr5 - fmov.s @r0+, fr6 - fmov.s @r0+, fr7 - fmov.s @r0+, fr8 - fmov.s @r0+, fr9 - fmov.s @r0+, fr10 - fmov.s @r0+, fr11 - fmov.s @r0+, fr12 - fmov.s @r0+, fr13 - fmov.s @r0+, fr14 - fmov.s @r0+, fr15 - frchg - lds.l @r0+, fpscr - lds.l @r0+, fpul - - mov r8, r0 - add #(oPC), r0 - mov.l @r0+, r2 - lds.l @r0+, pr - - /* Restore T frag. */ - mov.l @r0+, r1 - shlr r1 - /* Skip GBR which is used for thread pointer. */ - add #4, r0 - - lds.l @r0+, mach - lds.l @r0+, macl - - mov r8, r0 - add #(oR9), r0 - mov.l @r0+, r9 - mov.l @r0+, r10 - mov.l @r0+, r11 - mov.l @r0+, r12 - mov.l @r0+, r13 - mov.l @r0+, r14 - mov.l @r0+, r15 - - mov r8, r0 - mov.l @(oR0,r0), r1 - mov.l r1, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r1, 0) - mov.l r2, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r2, 0) - - mov.l @(oR1,r0), r1 - mov.l @(oR2,r0), r2 - mov.l @(oR3,r0), r3 - mov.l @(oR4,r0), r4 - mov.l @(oR5,r0), r5 - mov.l @(oR6,r0), r6 - mov.l @(oR7,r0), r7 - mov.l @(oR8,r0), r8 - mov.l @r15+, r0 - jmp @r0 - mov.l @r15+, r0 - -PSEUDO_END(__swapcontext) - -weak_alias (__swapcontext, swapcontext) |