120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||
|
|
#ifndef _CRIS_ARCH_PTRACE_H
|
||
|
|
#define _CRIS_ARCH_PTRACE_H
|
||
|
|
|
||
|
|
/* Frame types */
|
||
|
|
|
||
|
|
#define CRIS_FRAME_NORMAL 0 /* normal frame without SBFS stacking */
|
||
|
|
#define CRIS_FRAME_BUSFAULT 1 /* frame stacked using SBFS, need RBF return
|
||
|
|
path */
|
||
|
|
|
||
|
|
/* Register numbers in the ptrace system call interface */
|
||
|
|
|
||
|
|
#define PT_FRAMETYPE 0
|
||
|
|
#define PT_ORIG_R10 1
|
||
|
|
#define PT_R13 2
|
||
|
|
#define PT_R12 3
|
||
|
|
#define PT_R11 4
|
||
|
|
#define PT_R10 5
|
||
|
|
#define PT_R9 6
|
||
|
|
#define PT_R8 7
|
||
|
|
#define PT_R7 8
|
||
|
|
#define PT_R6 9
|
||
|
|
#define PT_R5 10
|
||
|
|
#define PT_R4 11
|
||
|
|
#define PT_R3 12
|
||
|
|
#define PT_R2 13
|
||
|
|
#define PT_R1 14
|
||
|
|
#define PT_R0 15
|
||
|
|
#define PT_MOF 16
|
||
|
|
#define PT_DCCR 17
|
||
|
|
#define PT_SRP 18
|
||
|
|
#define PT_IRP 19 /* This is actually the debugged process' PC */
|
||
|
|
#define PT_CSRINSTR 20 /* CPU Status record remnants -
|
||
|
|
valid if frametype == busfault */
|
||
|
|
#define PT_CSRADDR 21
|
||
|
|
#define PT_CSRDATA 22
|
||
|
|
#define PT_USP 23 /* special case - USP is not in the pt_regs */
|
||
|
|
#define PT_MAX 23
|
||
|
|
|
||
|
|
/* Condition code bit numbers. The same numbers apply to CCR of course,
|
||
|
|
but we use DCCR everywhere else, so let's try and be consistent. */
|
||
|
|
#define C_DCCR_BITNR 0
|
||
|
|
#define V_DCCR_BITNR 1
|
||
|
|
#define Z_DCCR_BITNR 2
|
||
|
|
#define N_DCCR_BITNR 3
|
||
|
|
#define X_DCCR_BITNR 4
|
||
|
|
#define I_DCCR_BITNR 5
|
||
|
|
#define B_DCCR_BITNR 6
|
||
|
|
#define M_DCCR_BITNR 7
|
||
|
|
#define U_DCCR_BITNR 8
|
||
|
|
#define P_DCCR_BITNR 9
|
||
|
|
#define F_DCCR_BITNR 10
|
||
|
|
|
||
|
|
/* 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 frametype; /* type of stackframe */
|
||
|
|
unsigned long orig_r10;
|
||
|
|
/* pushed by movem r13, [sp] in SAVE_ALL, movem pushes backwards */
|
||
|
|
unsigned long r13;
|
||
|
|
unsigned long r12;
|
||
|
|
unsigned long r11;
|
||
|
|
unsigned long r10;
|
||
|
|
unsigned long r9;
|
||
|
|
unsigned long r8;
|
||
|
|
unsigned long r7;
|
||
|
|
unsigned long r6;
|
||
|
|
unsigned long r5;
|
||
|
|
unsigned long r4;
|
||
|
|
unsigned long r3;
|
||
|
|
unsigned long r2;
|
||
|
|
unsigned long r1;
|
||
|
|
unsigned long r0;
|
||
|
|
unsigned long mof;
|
||
|
|
unsigned long dccr;
|
||
|
|
unsigned long srp;
|
||
|
|
unsigned long irp; /* This is actually the debugged process' PC */
|
||
|
|
unsigned long csrinstr;
|
||
|
|
unsigned long csraddr;
|
||
|
|
unsigned long csrdata;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* 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 r9;
|
||
|
|
unsigned long r8;
|
||
|
|
unsigned long r7;
|
||
|
|
unsigned long r6;
|
||
|
|
unsigned long r5;
|
||
|
|
unsigned long r4;
|
||
|
|
unsigned long r3;
|
||
|
|
unsigned long r2;
|
||
|
|
unsigned long r1;
|
||
|
|
unsigned long r0;
|
||
|
|
unsigned long return_ip; /* ip that _resume will return to */
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
|
||
|
|
/* bit 8 is user-mode flag */
|
||
|
|
#define user_mode(regs) (((regs)->dccr & 0x100) != 0)
|
||
|
|
#define instruction_pointer(regs) ((regs)->irp)
|
||
|
|
#define profile_pc(regs) instruction_pointer(regs)
|
||
|
|
|
||
|
|
#endif /* __KERNEL__ */
|
||
|
|
|
||
|
|
#endif
|