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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _CRIS_ARCH_PTRACE_H
#define _CRIS_ARCH_PTRACE_H
/* Register numbers in the ptrace system call interface */
#define PT_ORIG_R10 0
#define PT_R0 1
#define PT_R1 2
#define PT_R2 3
#define PT_R3 4
#define PT_R4 5
#define PT_R5 6
#define PT_R6 7
#define PT_R7 8
#define PT_R8 9
#define PT_R9 10
#define PT_R10 11
#define PT_R11 12
#define PT_R12 13
#define PT_R13 14
#define PT_ACR 15
#define PT_SRS 16
#define PT_MOF 17
#define PT_SPC 18
#define PT_CCS 19
#define PT_SRP 20
#define PT_ERP 21 /* This is actually the debugged process' PC */
#define PT_EXS 22
#define PT_EDA 23
#define PT_USP 24 /* special case - USP is not in the pt_regs */
#define PT_PPC 25 /* special case - pseudo PC */
#define PT_BP 26 /* Base number for BP registers. */
#define PT_BP_CTRL 26 /* BP control register. */
#define PT_MAX 40
/* Condition code bit numbers. */
#define C_CCS_BITNR 0
#define V_CCS_BITNR 1
#define Z_CCS_BITNR 2
#define N_CCS_BITNR 3
#define X_CCS_BITNR 4
#define I_CCS_BITNR 5
#define U_CCS_BITNR 6
#define P_CCS_BITNR 7
#define R_CCS_BITNR 8
#define S_CCS_BITNR 9
#define M_CCS_BITNR 30
#define Q_CCS_BITNR 31
#define CCS_SHIFT 10 /* Shift count for each level in CCS */
/* pt_regs not only specifices the format in the user-struct during
* ptrace but is also the frame format used in the kernel prologue/epilogues
* themselves
*/
struct pt_regs {
unsigned long orig_r10;
/* pushed by movem r13, [sp] in SAVE_ALL. */
unsigned long r0;
unsigned long r1;
unsigned long r2;
unsigned long r3;
unsigned long r4;
unsigned long r5;
unsigned long r6;
unsigned long r7;
unsigned long r8;
unsigned long r9;
unsigned long r10;
unsigned long r11;
unsigned long r12;
unsigned long r13;
unsigned long acr;
unsigned long srs;
unsigned long mof;
unsigned long spc;
unsigned long ccs;
unsigned long srp;
unsigned long erp; /* This is actually the debugged process' PC */
/* For debugging purposes; saved only when needed. */
unsigned long exs;
unsigned long eda;
};
/* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S)
* when doing a context-switch. it is used (apart from in resume) when a new
* thread is made and we need to make _resume (which is starting it for the
* first time) realise what is going on.
*
* Actually, the use is very close to the thread struct (TSS) in that both the
* switch_stack and the TSS are used to keep thread stuff when switching in
* _resume.
*/
struct switch_stack {
unsigned long r0;
unsigned long r1;
unsigned long r2;
unsigned long r3;
unsigned long r4;
unsigned long r5;
unsigned long r6;
unsigned long r7;
unsigned long r8;
unsigned long r9;
unsigned long return_ip; /* ip that _resume will return to */
};
#ifdef __KERNEL__
#define arch_has_single_step() (1)
#define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0)
#define instruction_pointer(regs) ((regs)->erp)
#define profile_pc(regs) instruction_pointer(regs)
#endif /* __KERNEL__ */
#endif
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