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