diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/setcontext.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/setcontext.S | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/setcontext.S b/sysdeps/unix/sysv/linux/ia64/setcontext.S deleted file mode 100644 index ef0a93c0c0..0000000000 --- a/sysdeps/unix/sysv/linux/ia64/setcontext.S +++ /dev/null @@ -1,153 +0,0 @@ -/* Copyright (C) 2001, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David Mosberger-Tang <davidm@hpl.hp.com>. - - 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 <features.h> - -#include "ucontext_i.h" - -/* __setcontext (const ucontext_t *ucp) - - Restores the machine context in UCP and thereby resumes execution - in that context. - - This implementation in intended to be used for *synchronous* context - switches only. Therefore, it does not have to restore anything - other than the PRESERVED state. */ - -ENTRY(__setcontext) - .prologue - .body - alloc r11 = ar.pfs, 1, 0, 4, 0 - - // sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL): - - mov r3 = SC_MASK - mov out0 = SIG_SETMASK - ;; - add out1 = r3, in0 - mov out2 = 0 - mov out3 = 8 // sizeof kernel sigset_t - - invala - DO_CALL(__NR_rt_sigprocmask) - add r2 = SC_NAT, r32 - - add r3 = SC_RNAT, r32 // r3 <- &sc_ar_rnat - add rPOS = SC_GR, r32 // rPOS <- &sc_gr[0] - ;; - ld8 rNAT = [r2], (SC_BSP-SC_NAT) - extr.u rPOS = rPOS, 3, 6 // get NaT bit number for r0 - ;; - ld8 rBSP = [r2], (SC_UNAT-SC_BSP) - ld8 rRNAT = [r3], (SC_FPSR-SC_RNAT) - /* - * Rotate NaT bits by rPOS positions to the left: - */ - sub rCPOS = 64, rPOS - ;; - ld8 rUNAT = [r2], (SC_PFS-SC_UNAT) - ld8 rFPSR = [r3], (SC_LC-SC_FPSR) - shl rTMP = rNAT, rPOS - ;; - ld8 rPFS = [r2], (SC_PR-SC_PFS) - ld8 rLC = [r3], (SC_BR+0*8-SC_LC) - shr.u rNAT = rNAT, rCPOS - ;; - ld8 rPR = [r2], (SC_BR+1*8-SC_PR) - ld8 rB0 = [r3], 16 - or rNAT = rNAT, rTMP - ;; - ld8 rB1 = [r2], 16 - ld8 rB2 = [r3], 16 - ;; - mov.m ar.unat = rNAT - mov.m rRSC = ar.rsc - ;; - ld8 rB3 = [r2], 16 - ld8 rB4 = [r3], (SC_GR+1*8-(SC_BR+4*8)) - ;; - ld8 rB5 = [r2], (SC_GR+4*8-(SC_BR+5*8)) - ld8.fill r1 = [r3], (5*8 - 1*8) - ;; - ld8.fill r4 = [r2], 16 - ld8.fill r5 = [r3], 16 - mov b0 = rB0 - ;; - ld8.fill r6 = [r2], 48 - ld8.fill r7 = [r3], (SC_FR+2*16-(SC_GR+7*8)) - ;; - ld8.fill sp = [r2], (SC_FR+3*16-(SC_GR+12*8)) - mov.m ar.fpsr = rFPSR - mov.i ar.pfs = rPFS - ;; - ldf.fill f3 = [r2], 16 - ldf.fill f2 = [r3], 48 - mov b1 = rB1 - ;; - ldf.fill f4 = [r2], (16*16-4*16) - ldf.fill f5 = [r3], (17*16-5*16) - mov b2 = rB2 - ;; - ldf.fill f16 = [r2], 32 - ldf.fill f17 = [r3], 32 - mov b3 = rB3 - ;; - ldf.fill f18 = [r2], 32 - ldf.fill f19 = [r3], 32 - mov b4 = rB4 - ;; - ldf.fill f20 = [r2], 32 - ldf.fill f21 = [r3], 32 - mov b5 = rB5 - ;; - ldf.fill f22 = [r2], 32 - ldf.fill f23 = [r3], 32 - mov r8 = 0 - ;; - ldf.fill f24 = [r2], 32 - ldf.fill f25 = [r3], 32 - mov r9 = 0 - ;; - ldf.fill f26 = [r2], 32 - ldf.fill f27 = [r3], 32 - dep rTMP = 0, rRSC, 16, 14 // clear ar.rsc.loadrs - ;; - ldf.fill f28 = [r2], 32 - ldf.fill f29 = [r3], 32 - and rTMP = ~0x3, rTMP // clear ar.rsc.mode - ;; - ldf.fill f30 = [r2], 32 - ldf.fill f31 = [r3], 32 - mov pr = rPR, -1 - ;; - mov.m ar.rsc = rTMP // put RSE into enforced lazy mode - ;; - loadrs // drop dirty partition - ;; - mov.m ar.bspstore = rBSP - mov.m ar.unat = rUNAT - mov.i ar.lc = rLC - ;; - mov.m ar.rnat = rRNAT - mov.m ar.rsc = rRSC - ret -END(__setcontext) - -weak_alias (__setcontext, setcontext) |