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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-08-05 13:35:07 +0200
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-08-05 13:35:07 +0200
commit84db8d7cdb072866f5a6c6ac2c9a74c5c48dd22f (patch)
tree7f10cc33bca606abd1547ae90d90362134a35332 /arch/avr32/include/asm/user.h
parentMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/... (diff)
downloadlinux-84db8d7cdb072866f5a6c6ac2c9a74c5c48dd22f.tar.xz
linux-84db8d7cdb072866f5a6c6ac2c9a74c5c48dd22f.zip
avr32: Move include/asm-avr32 to arch/avr32/include/asm
Leaving include/asm/arch alone for now. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32/include/asm/user.h')
-rw-r--r--arch/avr32/include/asm/user.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/user.h b/arch/avr32/include/asm/user.h
new file mode 100644
index 000000000000..7e9152f81f5e
--- /dev/null
+++ b/arch/avr32/include/asm/user.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Note: We may not need these definitions for AVR32, as we don't
+ * support a.out.
+ */
+#ifndef __ASM_AVR32_USER_H
+#define __ASM_AVR32_USER_H
+
+#include <linux/types.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 {
+ /* We have no FPU (yet) */
+};
+
+struct user {
+ struct pt_regs regs; /* entire machine state */
+ 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 */
+ unsigned long u_ar0; /* help gdb find registers */
+ 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_AVR32_USER_H */