Merge tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux

Pull Xtensa patchset from Chris Zankel:
 "These are all limited to the xtensa subtree and include some important
  changes (adding long missing system calls for newer libc versions and
  other fixes) and the UAPI changes"

* tag 'xtensa-next-20121018' of git://github.com/czankel/xtensa-linux:
  xtensa: add missing system calls to the syscall table
  xtensa: minor compiler warning fix
  xtensa: Use Kbuild infrastructure to handle asm-generic headers
  UAPI: (Scripted) Disintegrate arch/xtensa/include/asm
  xtensa: fix unaligned usermode access
  xtensa: reorganize SR referencing
  xtensa: fix boot parameters parsing
  xtensa: fix missing return in do_page_fault for SIGBUS case
  xtensa: copy_thread with CLONE_VM must not copy live parent AR windows
  xtensa: fix memmove(), bcopy(), and memcpy().
  xtensa: ISS: fix rs_put_char
  xtensa: ISS: fix specific simcalls

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 000000000000..ee17aa842fdf
--- /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 */