105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
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#ifndef __ASM_ARM_PTRACE_H
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#define __ASM_ARM_PTRACE_H
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#define PTRACE_GETREGS 12
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#define PTRACE_SETREGS 13
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#define PTRACE_GETFPREGS 14
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#define PTRACE_SETFPREGS 15
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#define PTRACE_OLDSETOPTIONS 21
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/* options set using PTRACE_SETOPTIONS */
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#define PTRACE_O_TRACESYSGOOD 0x00000001
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#define MODE_USR26 0x00000000
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#define MODE_FIQ26 0x00000001
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#define MODE_IRQ26 0x00000002
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#define MODE_SVC26 0x00000003
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#define MODE_MASK 0x00000003
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#define PSR_F_BIT 0x04000000
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#define PSR_I_BIT 0x08000000
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#define PSR_V_BIT 0x10000000
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#define PSR_C_BIT 0x20000000
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#define PSR_Z_BIT 0x40000000
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#define PSR_N_BIT 0x80000000
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#define PCMASK 0xfc000003
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#ifndef __ASSEMBLY__
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#define pc_pointer(v) ((v) & ~PCMASK) /* convert v to pc type address */
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#define instruction_pointer(regs) (pc_pointer((regs)->ARM_pc)) /* get pc */
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#define profile_pc(regs) instruction_pointer(regs)
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/* this struct defines the way the registers are stored on the
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stack during a system call. */
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struct pt_regs {
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long uregs[17];
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};
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#define ARM_pc uregs[15]
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#define ARM_lr uregs[14]
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#define ARM_sp uregs[13]
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#define ARM_ip uregs[12]
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#define ARM_fp uregs[11]
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#define ARM_r10 uregs[10]
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#define ARM_r9 uregs[9]
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#define ARM_r8 uregs[8]
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#define ARM_r7 uregs[7]
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#define ARM_r6 uregs[6]
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#define ARM_r5 uregs[5]
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#define ARM_r4 uregs[4]
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#define ARM_r3 uregs[3]
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#define ARM_r2 uregs[2]
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#define ARM_r1 uregs[1]
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#define ARM_r0 uregs[0]
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#define ARM_ORIG_r0 uregs[16]
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#ifdef __KERNEL__
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#define processor_mode(regs) \
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((regs)->ARM_pc & MODE_MASK)
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#define user_mode(regs) \
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(processor_mode(regs) == MODE_USR26)
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#define interrupts_enabled(regs) \
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(!((regs)->ARM_pc & PSR_I_BIT))
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#define fast_interrupts_enabled(regs) \
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(!((regs)->ARM_pc & PSR_F_BIT))
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#define condition_codes(regs) \
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((regs)->ARM_pc & (PSR_V_BIT|PSR_C_BIT|PSR_Z_BIT|PSR_N_BIT))
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/* Are the current registers suitable for user mode?
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* (used to maintain security in signal handlers)
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*/
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static inline int valid_user_regs(struct pt_regs *regs)
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{
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if (user_mode(regs) &&
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(regs->ARM_pc & (PSR_F_BIT | PSR_I_BIT)) == 0)
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return 1;
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/*
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* force it to be something sensible
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*/
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regs->ARM_pc &= ~(MODE_MASK | PSR_F_BIT | PSR_I_BIT);
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return 0;
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}
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extern void show_regs(struct pt_regs *);
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#define predicate(x) (x & 0xf0000000)
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#define PREDICATE_ALWAYS 0xe0000000
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#endif /* __KERNEL__ */
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#endif /* __ASSEMBLY__ */
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#endif
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