u-boot/examples/standalone/ppc_longjmp.S
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

66 lines
1.9 KiB
ArmAsm

/* SPDX-License-Identifier: LGPL-2.1+ */
/* longjmp for PowerPC.
Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
*/
#include <ppc_asm.tmpl>
# define JB_GPR1 0 /* Also known as the stack pointer */
# define JB_GPR2 1
# define JB_LR 2 /* The address we will return to */
# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */
# define JB_CR 21 /* Condition code registers. */
# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */
# define JB_SIZE (58*4)
#define FP(x...) x
#define FP(x...) x
.globl ppc_longjmp;
ppc_longjmp:
lwz r1,(JB_GPR1*4)(r3)
lwz r2,(JB_GPR2*4)(r3)
lwz r0,(JB_LR*4)(r3)
lwz r14,((JB_GPRS+0)*4)(r3)
FP( lfd 14,((JB_FPRS+0*2)*4)(r3))
lwz r15,((JB_GPRS+1)*4)(r3)
FP( lfd 15,((JB_FPRS+1*2)*4)(r3))
lwz r16,((JB_GPRS+2)*4)(r3)
FP( lfd 16,((JB_FPRS+2*2)*4)(r3))
lwz r17,((JB_GPRS+3)*4)(r3)
FP( lfd 17,((JB_FPRS+3*2)*4)(r3))
lwz r18,((JB_GPRS+4)*4)(r3)
FP( lfd 18,((JB_FPRS+4*2)*4)(r3))
lwz r19,((JB_GPRS+5)*4)(r3)
FP( lfd 19,((JB_FPRS+5*2)*4)(r3))
lwz r20,((JB_GPRS+6)*4)(r3)
FP( lfd 20,((JB_FPRS+6*2)*4)(r3))
mtlr r0
lwz r21,((JB_GPRS+7)*4)(r3)
FP( lfd 21,((JB_FPRS+7*2)*4)(r3))
lwz r22,((JB_GPRS+8)*4)(r3)
FP( lfd 22,((JB_FPRS+8*2)*4)(r3))
lwz r0,(JB_CR*4)(r3)
lwz r23,((JB_GPRS+9)*4)(r3)
FP( lfd 23,((JB_FPRS+9*2)*4)(r3))
lwz r24,((JB_GPRS+10)*4)(r3)
FP( lfd 24,((JB_FPRS+10*2)*4)(r3))
lwz r25,((JB_GPRS+11)*4)(r3)
FP( lfd 25,((JB_FPRS+11*2)*4)(r3))
mtcrf 0xFF,r0
lwz r26,((JB_GPRS+12)*4)(r3)
FP( lfd 26,((JB_FPRS+12*2)*4)(r3))
lwz r27,((JB_GPRS+13)*4)(r3)
FP( lfd 27,((JB_FPRS+13*2)*4)(r3))
lwz r28,((JB_GPRS+14)*4)(r3)
FP( lfd 28,((JB_FPRS+14*2)*4)(r3))
lwz r29,((JB_GPRS+15)*4)(r3)
FP( lfd 29,((JB_FPRS+15*2)*4)(r3))
lwz r30,((JB_GPRS+16)*4)(r3)
FP( lfd 30,((JB_FPRS+16*2)*4)(r3))
lwz r31,((JB_GPRS+17)*4)(r3)
FP( lfd 31,((JB_FPRS+17*2)*4)(r3))
mr r3,r4
blr