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Diffstat (limited to 'include/asm-avr32/user.h')
-rw-r--r-- | include/asm-avr32/user.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/asm-avr32/user.h b/include/asm-avr32/user.h new file mode 100644 index 000000000000..060fb3acee49 --- /dev/null +++ b/include/asm-avr32/user.h | |||
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1 | /* | ||
2 | * Copyright (C) 2004-2006 Atmel Corporation | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License version 2 as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * Note: We may not need these definitions for AVR32, as we don't | ||
9 | * support a.out. | ||
10 | */ | ||
11 | #ifndef __ASM_AVR32_USER_H | ||
12 | #define __ASM_AVR32_USER_H | ||
13 | |||
14 | #include <linux/types.h> | ||
15 | #include <asm/ptrace.h> | ||
16 | #include <asm/page.h> | ||
17 | |||
18 | /* | ||
19 | * Core file format: The core file is written in such a way that gdb | ||
20 | * can understand it and provide useful information to the user (under | ||
21 | * linux we use the `trad-core' bfd). The file contents are as follows: | ||
22 | * | ||
23 | * upage: 1 page consisting of a user struct that tells gdb | ||
24 | * what is present in the file. Directly after this is a | ||
25 | * copy of the task_struct, which is currently not used by gdb, | ||
26 | * but it may come in handy at some point. All of the registers | ||
27 | * are stored as part of the upage. The upage should always be | ||
28 | * only one page long. | ||
29 | * data: The data segment follows next. We use current->end_text to | ||
30 | * current->brk to pick up all of the user variables, plus any memory | ||
31 | * that may have been sbrk'ed. No attempt is made to determine if a | ||
32 | * page is demand-zero or if a page is totally unused, we just cover | ||
33 | * the entire range. All of the addresses are rounded in such a way | ||
34 | * that an integral number of pages is written. | ||
35 | * stack: We need the stack information in order to get a meaningful | ||
36 | * backtrace. We need to write the data from usp to | ||
37 | * current->start_stack, so we round each of these in order to be able | ||
38 | * to write an integer number of pages. | ||
39 | */ | ||
40 | |||
41 | struct user_fpu_struct { | ||
42 | /* We have no FPU (yet) */ | ||
43 | }; | ||
44 | |||
45 | struct user { | ||
46 | struct pt_regs regs; /* entire machine state */ | ||
47 | size_t u_tsize; /* text size (pages) */ | ||
48 | size_t u_dsize; /* data size (pages) */ | ||
49 | size_t u_ssize; /* stack size (pages) */ | ||
50 | unsigned long start_code; /* text starting address */ | ||
51 | unsigned long start_data; /* data starting address */ | ||
52 | unsigned long start_stack; /* stack starting address */ | ||
53 | long int signal; /* signal causing core dump */ | ||
54 | struct regs * u_ar0; /* help gdb find registers */ | ||
55 | unsigned long magic; /* identifies a core file */ | ||
56 | char u_comm[32]; /* user command name */ | ||
57 | }; | ||
58 | |||
59 | #define NBPG PAGE_SIZE | ||
60 | #define UPAGES 1 | ||
61 | #define HOST_TEXT_START_ADDR (u.start_code) | ||
62 | #define HOST_DATA_START_ADDR (u.start_data) | ||
63 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | ||
64 | |||
65 | #endif /* __ASM_AVR32_USER_H */ | ||