diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/m68k/m680x0/swapcontext.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/m68k/m680x0/swapcontext.S | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/swapcontext.S b/ports/sysdeps/unix/sysv/linux/m68k/m680x0/swapcontext.S deleted file mode 100644 index e7a73944b7..0000000000 --- a/ports/sysdeps/unix/sysv/linux/m68k/m680x0/swapcontext.S +++ /dev/null @@ -1,108 +0,0 @@ -/* Save current context and install the given one. - Copyright (C) 2012-2014 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> - -#include "ucontext_i.h" - - -ENTRY(__swapcontext) - /* Load address of the context data structure we save in. */ - move.l 4(%sp), %a0 - - /* Save the preserved registers and the return address. */ - movem.l %d2-%d7, oGREGS+2*4(%a0) - movem.l %a2-%a6, oGREGS+10*4(%a0) - lea 4(%sp), %a1 - move.l %a1, oSP(%a0) - move.l (%sp), oPC(%a0) - fmovem.l %fpsr/%fpcr/%fpiar, oFPREGS(%a0) - fmovem.x %fp2-%fp7, oFP2(%a0) - cfi_def_cfa (%a0, 0) - cfi_offset (%d2, oGREGS+2*4) - cfi_offset (%d3, oGREGS+3*4) - cfi_offset (%a2, oGREGS+10*4) - cfi_offset (%pc, oPC) - - /* Load address of the context data structure we have to load. */ - move.l 8(%sp), %a1 - - /* Save the current signal mask and install the new one. */ - lea oSIGMASK(%a0), %a2 - move.l %a2, %d3 - lea oSIGMASK(%a1), %a2 - move.l %a2, %d2 - move.l #SIG_SETMASK, %d1 - move.l #__NR_sigprocmask, %d0 - trap #0 - cmp.l #-4095, %d0 /* Check %d0 for error. */ - jcs 0f - /* Restore registers. */ - move.l oGREGS+2*4(%a0), %d2 - cfi_restore (%d2) - move.l oGREGS+3*4(%a0), %d3 - cfi_restore (%d3) - move.l oGREGS+10*4(%a0), %a2 - cfi_restore (%a2) - jra SYSCALL_ERROR_LABEL /* Jump to error handler. */ - -0: /* Load the new stack pointer. */ - move.l oSP(%a1), %sp - cfi_def_cfa (%a1, 0) - cfi_offset (%d2, oGREGS+2*4) - cfi_offset (%d3, oGREGS+3*4) - cfi_offset (%d4, oGREGS+4*4) - cfi_offset (%d5, oGREGS+5*4) - cfi_offset (%d6, oGREGS+6*4) - cfi_offset (%d7, oGREGS+7*4) - cfi_offset (%a2, oGREGS+10*4) - cfi_offset (%a3, oGREGS+11*4) - cfi_offset (%a4, oGREGS+12*4) - cfi_offset (%a5, oGREGS+13*4) - cfi_offset (%a6, oGREGS+14*4) - cfi_offset (%fp2, oFP2+0*12) - cfi_offset (%fp3, oFP2+1*12) - cfi_offset (%fp4, oFP2+2*12) - cfi_offset (%fp5, oFP2+3*12) - cfi_offset (%fp6, oFP2+4*12) - cfi_offset (%fp7, oFP2+5*12) - cfi_offset (%pc, oPC) - - /* Load the values of all the preserved registers (except SP). */ - movem.l oGREGS+2*4(%a1), %d2-%d7 - movem.l oGREGS+10*4(%a1), %a2-%a6 - fmovem.l oFPREGS(%a1), %fpsr/%fpcr/%fpiar - fmovem.x oFP2(%a1), %fp2-%fp7 - - /* Clear D0 to indicate success. */ - clr.l %d0 - - /* Fetch the address to return to. */ - move.l oPC(%a1), %a0 - - /* End FDE here, we fall into another context. */ - cfi_endproc - cfi_startproc - cfi_register (%pc, %a0) - - jmp (%a0) - - cfi_offset (%pc, -4) -PSEUDO_END(__swapcontext) - -weak_alias (__swapcontext, swapcontext) |