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| /* SPDX-License-Identifier: GPL-2.0-or-later */
| /*
| * Copyright (C) 1996 Paul Mackerras.
| *
| * NOTE: assert(sizeof(buf) > 23 * sizeof(long))
| */
| #include <asm/processor.h>
| #include <asm/ppc_asm.h>
| #include <asm/asm-offsets.h>
| #include <asm/ptrace.h>
| #include <asm/asm-compat.h>
|
| /*
| * Grab the register values as they are now.
| * This won't do a particularly good job because we really
| * want our caller's caller's registers, and our caller has
| * already executed its prologue.
| * ToDo: We could reach back into the caller's save area to do
| * a better job of representing the caller's state (note that
| * that will be different for 32-bit and 64-bit, because of the
| * different ABIs, though).
| */
| _GLOBAL(ppc_save_regs)
| PPC_STL r0,0*SZL(r3)
| #ifdef CONFIG_PPC32
| stmw r2, 2*SZL(r3)
| #else
| PPC_STL r2,2*SZL(r3)
| PPC_STL r3,3*SZL(r3)
| PPC_STL r4,4*SZL(r3)
| PPC_STL r5,5*SZL(r3)
| PPC_STL r6,6*SZL(r3)
| PPC_STL r7,7*SZL(r3)
| PPC_STL r8,8*SZL(r3)
| PPC_STL r9,9*SZL(r3)
| PPC_STL r10,10*SZL(r3)
| PPC_STL r11,11*SZL(r3)
| PPC_STL r12,12*SZL(r3)
| PPC_STL r13,13*SZL(r3)
| PPC_STL r14,14*SZL(r3)
| PPC_STL r15,15*SZL(r3)
| PPC_STL r16,16*SZL(r3)
| PPC_STL r17,17*SZL(r3)
| PPC_STL r18,18*SZL(r3)
| PPC_STL r19,19*SZL(r3)
| PPC_STL r20,20*SZL(r3)
| PPC_STL r21,21*SZL(r3)
| PPC_STL r22,22*SZL(r3)
| PPC_STL r23,23*SZL(r3)
| PPC_STL r24,24*SZL(r3)
| PPC_STL r25,25*SZL(r3)
| PPC_STL r26,26*SZL(r3)
| PPC_STL r27,27*SZL(r3)
| PPC_STL r28,28*SZL(r3)
| PPC_STL r29,29*SZL(r3)
| PPC_STL r30,30*SZL(r3)
| PPC_STL r31,31*SZL(r3)
| lbz r0,PACAIRQSOFTMASK(r13)
| PPC_STL r0,SOFTE-STACK_FRAME_OVERHEAD(r3)
| #endif
| /* go up one stack frame for SP */
| PPC_LL r4,0(r1)
| PPC_STL r4,1*SZL(r3)
| /* get caller's LR */
| PPC_LL r0,LRSAVE(r4)
| PPC_STL r0,_LINK-STACK_FRAME_OVERHEAD(r3)
| mflr r0
| PPC_STL r0,_NIP-STACK_FRAME_OVERHEAD(r3)
| mfmsr r0
| PPC_STL r0,_MSR-STACK_FRAME_OVERHEAD(r3)
| mfctr r0
| PPC_STL r0,_CTR-STACK_FRAME_OVERHEAD(r3)
| mfxer r0
| PPC_STL r0,_XER-STACK_FRAME_OVERHEAD(r3)
| mfcr r0
| PPC_STL r0,_CCR-STACK_FRAME_OVERHEAD(r3)
| li r0,0
| PPC_STL r0,_TRAP-STACK_FRAME_OVERHEAD(r3)
| PPC_STL r0,ORIG_GPR3-STACK_FRAME_OVERHEAD(r3)
| blr
|
|
