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