[ubicom32]: move new files out from platform support patch

[openwrt/svn-archive/archive.git] / target / linux / ubicom32 / files / arch / ubicom32 / include / asm / ptrace.h

diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/ptrace.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ptrace.h
new file mode 100644 (file)
index 0000000..aeae2c7
--- /dev/null
+++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ptrace.h
@@ -0,0 +1,177 @@
+/*
+ * arch/ubicom32/include/asm/ptrace.h
+ *   Ubicom32 architecture ptrace support.
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
+ * it and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ *   arch/m68knommu
+ *   arch/blackfin
+ *   arch/parisc
+ */
+#ifndef _ASM_UBICOM32_PTRACE_H
+#define _ASM_UBICOM32_PTRACE_H
+
+#ifndef __ASSEMBLY__
+
+/*
+ * We use hard coded constants because this is shared with user
+ * space and the values are NOT allowed to change.  Only fields
+ * that are intended to be exposed get values.
+ */
+#define PT_D0           0
+#define PT_D1           4
+#define PT_D2           8
+#define PT_D3           12
+#define PT_D4           16
+#define PT_D5           20
+#define PT_D6           24
+#define PT_D7           28
+#define PT_D8           32
+#define PT_D9           36
+#define PT_D10          40
+#define PT_D11          44
+#define PT_D12          48
+#define PT_D13          52
+#define PT_D14          56
+#define PT_D15          60
+#define PT_A0           64
+#define PT_A1           68
+#define PT_A2           72
+#define PT_A3           76
+#define PT_A4           80
+#define PT_A5           84
+#define PT_A6           88
+#define PT_A7           92
+#define PT_SP           92
+#define PT_ACC0HI       96
+#define PT_ACC0LO       100
+#define PT_MAC_RC16     104
+#define PT_ACC1HI       108
+#define PT_ACC1LO       112
+#define PT_SOURCE3      116
+#define PT_INST_CNT     120
+#define PT_CSR          124
+#define PT_DUMMY_UNUSED 128
+#define PT_INT_MASK0    132
+#define PT_INT_MASK1    136
+#define PT_TRAP_CAUSE   140
+#define PT_PC           144
+#define PT_ORIGINAL_D0  148
+#define PT_FRAME_TYPE   152
+
+/*
+ * The following 'registers' are not registers at all but are used
+ * locate the relocated sections.
+ */
+#define PT_TEXT_ADDR           200
+#define PT_TEXT_END_ADDR       204
+#define PT_DATA_ADDR           208
+#define PT_EXEC_FDPIC_LOADMAP  212
+#define PT_INTERP_FDPIC_LOADMAP        216
+
+/*
+ * This struct defines the way the registers are stored on the
+ * stack during a system call.
+ */
+enum thread_type {
+       NORMAL_THREAD,
+       KERNEL_THREAD,
+};
+
+#define UBICOM32_FRAME_TYPE_SYSCALL    -1 /* System call frame */
+#define UBICOM32_FRAME_TYPE_INVALID    0 /* Invalid frame, no longer in use */
+#define UBICOM32_FRAME_TYPE_INTERRUPT  1 /* Interrupt frame */
+#define UBICOM32_FRAME_TYPE_TRAP       2 /* Trap frame */
+#define UBICOM32_FRAME_TYPE_SIGTRAMP   3 /* Signal trampoline frame. */
+#define UBICOM32_FRAME_TYPE_NEW_THREAD 4 /* New Thread. */
+
+struct pt_regs {
+       /*
+        * Data Registers
+        */
+       unsigned long dn[16];
+
+       /*
+        * Address Registers
+        */
+       unsigned long an[8];
+
+       /*
+        * Per thread misc registers.
+        */
+       unsigned long acc0[2];
+       unsigned long mac_rc16;
+       unsigned long acc1[2];
+       unsigned long source3;
+       unsigned long inst_cnt;
+       unsigned long csr;
+       unsigned long dummy_unused;
+       unsigned long int_mask0;
+       unsigned long int_mask1;
+       unsigned long trap_cause;
+       unsigned long pc;
+       unsigned long original_dn_0;
+
+       /*
+        * Frame type. Syscall frames are -1. For other types look above.
+        */
+       unsigned long frame_type;
+
+       /*
+        * These fields are not exposed to ptrace.
+        */
+       unsigned long previous_pc;
+       long nesting_level;             /* When the kernel in in user space this
+                                        * will be -1. */
+       unsigned long thread_type;      /* This indicates if this is a kernel
+                                        * thread. */
+};
+
+/*
+ * This is the extended stack used by signal handlers and the context
+ * switcher: it's pushed after the normal "struct pt_regs".
+ */
+struct switch_stack {
+       unsigned long  dummy;
+};
+
+#ifdef __KERNEL__
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS         12
+#define PTRACE_SETREGS         13
+
+#ifndef PS_S
+#define PS_S  (0x2000)
+#define PS_M  (0x1000)
+#endif
+
+extern  int __user_mode(unsigned long sp);
+
+#define user_mode(regs) (__user_mode((regs->an[7])))
+#define user_stack(regs) ((regs)->an[7])
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+extern void show_regs(struct pt_regs *);
+#endif /* __KERNEL__ */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_UBICOM32_PTRACE_H */