1 files changed, 104 insertions, 0 deletions

diff --git a/include/asm-arm26/ptrace.h b/include/asm-arm26/ptrace.h
new file mode 100644
index 000000000000..6a46b5ae1156
--- /dev/null
+++ b/include/asm-arm26/ptrace.h
@@ -0,0 +1,104 @@
+#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
+