This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-sh64 / user.h

diff --git a/include/asm-sh64/user.h b/include/asm-sh64/user.h
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+++ b/include/asm-sh64/user.h
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+#ifndef __ASM_SH64_USER_H
+#define __ASM_SH64_USER_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.
+ *
+ * include/asm-sh64/user.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ */
+
+#include <linux/types.h>
+#include <asm/processor.h>
+#include <asm/ptrace.h>
+#include <asm/page.h>
+
+/*
+ * Core file format: The core file is written in such a way that gdb
+ * can understand it and provide useful information to the user (under
+ * linux we use the `trad-core' bfd).  The file contents are as follows:
+ *
+ *  upage: 1 page consisting of a user struct that tells gdb
+ *     what is present in the file.  Directly after this is a
+ *     copy of the task_struct, which is currently not used by gdb,
+ *     but it may come in handy at some point.  All of the registers
+ *     are stored as part of the upage.  The upage should always be
+ *     only one page long.
+ *  data: The data segment follows next.  We use current->end_text to
+ *     current->brk to pick up all of the user variables, plus any memory
+ *     that may have been sbrk'ed.  No attempt is made to determine if a
+ *     page is demand-zero or if a page is totally unused, we just cover
+ *     the entire range.  All of the addresses are rounded in such a way
+ *     that an integral number of pages is written.
+ *  stack: We need the stack information in order to get a meaningful
+ *     backtrace.  We need to write the data from usp to
+ *     current->start_stack, so we round each of these in order to be able
+ *     to write an integer number of pages.
+ */
+
+struct user_fpu_struct {
+        unsigned long long fp_regs[32];
+       unsigned int fpscr;
+};
+
+struct user {
+       struct pt_regs  regs;                   /* entire machine state */
+       struct user_fpu_struct fpu;     /* Math Co-processor registers  */
+       int u_fpvalid;          /* True if math co-processor being used */
+       size_t          u_tsize;                /* text size (pages) */
+       size_t          u_dsize;                /* data size (pages) */
+       size_t          u_ssize;                /* stack size (pages) */
+       unsigned long   start_code;             /* text starting address */
+       unsigned long   start_data;             /* data starting address */
+       unsigned long   start_stack;            /* stack starting address */
+       long int        signal;                 /* signal causing core dump */
+       struct regs *   u_ar0;                  /* help gdb find registers */
+       struct user_fpu_struct* u_fpstate;      /* Math Co-processor pointer */
+       unsigned long   magic;                  /* identifies a core file */
+       char            u_comm[32];             /* user command name */
+};
+
+#define NBPG                   PAGE_SIZE
+#define UPAGES                 1
+#define HOST_TEXT_START_ADDR   (u.start_code)
+#define HOST_DATA_START_ADDR   (u.start_data)
+#define HOST_STACK_END_ADDR    (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* __ASM_SH64_USER_H */