1#ifndef __ASM_ARM_PTRACE_H 2#define __ASM_ARM_PTRACE_H 3 4#define PTRACE_GETREGS 12 5#define PTRACE_SETREGS 13 6#define PTRACE_GETFPREGS 14 7#define PTRACE_SETFPREGS 15 8#define PTRACE_OLDSETOPTIONS 21 9 10/* options set using PTRACE_SETOPTIONS */ 11#define PTRACE_O_TRACESYSGOOD 0x00000001 12 13#define MODE_USR26 0x00000000 14#define MODE_FIQ26 0x00000001 15#define MODE_IRQ26 0x00000002 16#define MODE_SVC26 0x00000003 17#define MODE_MASK 0x00000003 18 19#define PSR_F_BIT 0x04000000 20#define PSR_I_BIT 0x08000000 21#define PSR_V_BIT 0x10000000 22#define PSR_C_BIT 0x20000000 23#define PSR_Z_BIT 0x40000000 24#define PSR_N_BIT 0x80000000 25 26#define PCMASK 0xfc000003 27 28 29#ifndef __ASSEMBLY__ 30 31#define pc_pointer(v) ((v) & ~PCMASK) /* convert v to pc type address */ 32#define instruction_pointer(regs) (pc_pointer((regs)->ARM_pc)) /* get pc */ 33#define profile_pc(regs) instruction_pointer(regs) 34 35/* this struct defines the way the registers are stored on the 36 stack during a system call. */ 37 38struct pt_regs { 39 long uregs[17]; 40}; 41 42#define ARM_pc uregs[15] 43#define ARM_lr uregs[14] 44#define ARM_sp uregs[13] 45#define ARM_ip uregs[12] 46#define ARM_fp uregs[11] 47#define ARM_r10 uregs[10] 48#define ARM_r9 uregs[9] 49#define ARM_r8 uregs[8] 50#define ARM_r7 uregs[7] 51#define ARM_r6 uregs[6] 52#define ARM_r5 uregs[5] 53#define ARM_r4 uregs[4] 54#define ARM_r3 uregs[3] 55#define ARM_r2 uregs[2] 56#define ARM_r1 uregs[1] 57#define ARM_r0 uregs[0] 58#define ARM_ORIG_r0 uregs[16] 59 60#ifdef __KERNEL__ 61 62#define processor_mode(regs) \ 63 ((regs)->ARM_pc & MODE_MASK) 64 65#define user_mode(regs) \ 66 (processor_mode(regs) == MODE_USR26) 67 68#define interrupts_enabled(regs) \ 69 (!((regs)->ARM_pc & PSR_I_BIT)) 70 71#define fast_interrupts_enabled(regs) \ 72 (!((regs)->ARM_pc & PSR_F_BIT)) 73 74#define condition_codes(regs) \ 75 ((regs)->ARM_pc & (PSR_V_BIT|PSR_C_BIT|PSR_Z_BIT|PSR_N_BIT)) 76 77/* Are the current registers suitable for user mode? 78 * (used to maintain security in signal handlers) 79 */ 80static inline int valid_user_regs(struct pt_regs *regs) 81{ 82 if (user_mode(regs) && 83 (regs->ARM_pc & (PSR_F_BIT | PSR_I_BIT)) == 0) 84 return 1; 85 86 /* 87 * force it to be something sensible 88 */ 89 regs->ARM_pc &= ~(MODE_MASK | PSR_F_BIT | PSR_I_BIT); 90 91 return 0; 92} 93 94extern void show_regs(struct pt_regs *); 95 96#define predicate(x) (x & 0xf0000000) 97#define PREDICATE_ALWAYS 0xe0000000 98 99#endif /* __KERNEL__ */ 100 101#endif /* __ASSEMBLY__ */ 102 103#endif 104