newlib-cygwin/newlib/libc/machine/arc/setjmp.S

166 lines
4.1 KiB
ArmAsm

/*
Copyright (c) 2015, Synopsys, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1) Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2) Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3) Neither the name of the Synopsys, Inc., nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
/* ABI interface file
these are the stack mappings for the registers
as stored in the ABI for ARC */
.file "setjmp.S"
ABIr13 = 0
ABIr14 = ABIr13 + 4
ABIr15 = ABIr14 + 4
ABIr16 = ABIr15 + 4
ABIr17 = ABIr16 + 4
ABIr18 = ABIr17 + 4
ABIr19 = ABIr18 + 4
ABIr20 = ABIr19 + 4
ABIr21 = ABIr20 + 4
ABIr22 = ABIr21 + 4
ABIr23 = ABIr22 + 4
ABIr24 = ABIr23 + 4
ABIr25 = ABIr24 + 4
ABIr26 = ABIr25 + 4
ABIr27 = ABIr26 + 4
ABIr28 = ABIr27 + 4
ABIr29 = ABIr28 + 4
ABIr30 = ABIr29 + 4
ABIr31 = ABIr30 + 4
ABIlpc = ABIr31 + 4
ABIlps = ABIlpc + 4
ABIlpe = ABIlps + 4
ABIflg = ABIlpe + 4
ABImlo = ABIflg + 4
ABImhi = ABImlo + 4
.text
.align 4
.global setjmp
.type setjmp,@function
setjmp:
st r13, [r0, ABIr13]
st r14, [r0, ABIr14]
st r15, [r0, ABIr15]
st r16, [r0, ABIr16]
st r17, [r0, ABIr17]
st r18, [r0, ABIr18]
st r19, [r0, ABIr19]
st r20, [r0, ABIr20]
st r21, [r0, ABIr21]
st r22, [r0, ABIr22]
st r23, [r0, ABIr23]
st r24, [r0, ABIr24]
st r25, [r0, ABIr25]
st r26, [r0, ABIr26]
st r27, [r0, ABIr27]
st r28, [r0, ABIr28]
st r29, [r0, ABIr29]
st r30, [r0, ABIr30]
st blink, [r0, ABIr31]
st lp_count, [r0, ABIlpc]
lr r2, [lp_start]
lr r3, [lp_end]
st r2, [r0, ABIlps]
st r3, [r0, ABIlpe]
#if (!defined (__ARC700__) && !defined (__ARCEM__) && !defined (__ARCHS__))
; Till the configure changes are decided, and implemented, the code working on
; mlo/mhi and using mul64 should be disabled.
; st mlo, [r0, ABImlo]
; st mhi, [r0, ABImhi]
lr r2, [status32]
st r2, [r0, ABIflg]
#endif
j.d [blink]
mov r0,0
.Lfe1:
.size setjmp,.Lfe1-setjmp
.align 4
.global longjmp
.type longjmp,@function
longjmp:
; load registers
ld r13, [r0, ABIr13]
ld r14, [r0, ABIr14]
ld r15, [r0, ABIr15]
ld r16, [r0, ABIr16]
ld r17, [r0, ABIr17]
ld r18, [r0, ABIr18]
ld r19, [r0, ABIr19]
ld r20, [r0, ABIr20]
ld r21, [r0, ABIr21]
ld r22, [r0, ABIr22]
ld r23, [r0, ABIr23]
ld r24, [r0, ABIr24]
ld r25, [r0, ABIr25]
ld r26, [r0, ABIr26]
ld r27, [r0, ABIr27]
ld r28, [r0, ABIr28]
ld r3, [r0, ABIr29]
mov r29, r3
ld r3, [r0, ABIr30]
mov r30, r3
ld blink, [r0, ABIr31]
ld r3, [r0, ABIlpc]
mov lp_count, r3
ld r2, [r0, ABIlps]
ld r3, [r0, ABIlpe]
sr r2, [lp_start]
sr r3, [lp_end]
#if (!defined (__ARC700__) && !defined (__ARCEM__) && !defined (__ARCHS__))
ld r2, [r0, ABImlo]
ld r3, [r0, ABImhi]
; We do not support restoring of mulhi and mlo registers, yet.
; mulu64 0,r2,1 ; restores mlo
; mov 0,mlo ; force multiply to finish
; sr r3, [mulhi]
ld r2, [r0, ABIflg]
flag r2 ; restore "status32" register
#endif
mov.f r1, r1 ; to avoid return 0 from longjmp
mov.eq r1, 1
j.d [blink]
mov r0,r1
.Lfe2:
.size longjmp,.Lfe2-longjmp