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-rw-r--r--arch/xtensa/include/uapi/asm/ptrace.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/xtensa/include/uapi/asm/ptrace.h b/arch/xtensa/include/uapi/asm/ptrace.h
new file mode 100644
index 0000000..ee17aa8
--- /dev/null
+++ b/arch/xtensa/include/uapi/asm/ptrace.h
@@ -0,0 +1,77 @@
+/*
+ * include/asm-xtensa/ptrace.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _UAPI_XTENSA_PTRACE_H
+#define _UAPI_XTENSA_PTRACE_H
+
+/*
+ * Kernel stack
+ *
+ * +-----------------------+ -------- STACK_SIZE
+ * | register file | |
+ * +-----------------------+ |
+ * | struct pt_regs | |
+ * +-----------------------+ | ------ PT_REGS_OFFSET
+ * double : 16 bytes spill area : | ^
+ * excetion :- - - - - - - - - - - -: | |
+ * frame : struct pt_regs : | |
+ * :- - - - - - - - - - - -: | |
+ * | | | |
+ * | memory stack | | |
+ * | | | |
+ * ~ ~ ~ ~
+ * ~ ~ ~ ~
+ * | | | |
+ * | | | |
+ * +-----------------------+ | | --- STACK_BIAS
+ * | struct task_struct | | | ^
+ * current --> +-----------------------+ | | |
+ * | struct thread_info | | | |
+ * +-----------------------+ --------
+ */
+
+#define KERNEL_STACK_SIZE (2 * PAGE_SIZE)
+
+/* Offsets for exception_handlers[] (3 x 64-entries x 4-byte tables). */
+
+#define EXC_TABLE_KSTK 0x004 /* Kernel Stack */
+#define EXC_TABLE_DOUBLE_SAVE 0x008 /* Double exception save area for a0 */
+#define EXC_TABLE_FIXUP 0x00c /* Fixup handler */
+#define EXC_TABLE_PARAM 0x010 /* For passing a parameter to fixup */
+#define EXC_TABLE_SYSCALL_SAVE 0x014 /* For fast syscall handler */
+#define EXC_TABLE_FAST_USER 0x100 /* Fast user exception handler */
+#define EXC_TABLE_FAST_KERNEL 0x200 /* Fast kernel exception handler */
+#define EXC_TABLE_DEFAULT 0x300 /* Default C-Handler */
+#define EXC_TABLE_SIZE 0x400
+
+/* Registers used by strace */
+
+#define REG_A_BASE 0x0000
+#define REG_AR_BASE 0x0100
+#define REG_PC 0x0020
+#define REG_PS 0x02e6
+#define REG_WB 0x0248
+#define REG_WS 0x0249
+#define REG_LBEG 0x0200
+#define REG_LEND 0x0201
+#define REG_LCOUNT 0x0202
+#define REG_SAR 0x0203
+
+#define SYSCALL_NR 0x00ff
+
+/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
+
+#define PTRACE_GETREGS 12
+#define PTRACE_SETREGS 13
+#define PTRACE_GETXTREGS 18
+#define PTRACE_SETXTREGS 19
+
+
+#endif /* _UAPI_XTENSA_PTRACE_H */