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Diffstat (limited to 'include/asm-frv/user.h')
-rw-r--r-- | include/asm-frv/user.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/include/asm-frv/user.h b/include/asm-frv/user.h deleted file mode 100644 index 82fa8fab64ae..000000000000 --- a/include/asm-frv/user.h +++ /dev/null | |||
@@ -1,80 +0,0 @@ | |||
1 | /* user.h: FR-V core file format stuff | ||
2 | * | ||
3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | #ifndef _ASM_USER_H | ||
12 | #define _ASM_USER_H | ||
13 | |||
14 | #include <asm/page.h> | ||
15 | #include <asm/registers.h> | ||
16 | |||
17 | /* Core file format: The core file is written in such a way that gdb | ||
18 | * can understand it and provide useful information to the user (under | ||
19 | * linux we use the 'trad-core' bfd). There are quite a number of | ||
20 | * obstacles to being able to view the contents of the floating point | ||
21 | * registers, and until these are solved you will not be able to view | ||
22 | * the contents of them. Actually, you can read in the core file and | ||
23 | * look at the contents of the user struct to find out what the | ||
24 | * floating point registers contain. | ||
25 | * | ||
26 | * The actual file contents are as follows: | ||
27 | * UPAGE: | ||
28 | * 1 page consisting of a user struct that tells gdb what is present | ||
29 | * in the file. Directly after this is a copy of the task_struct, | ||
30 | * which is currently not used by gdb, but it may come in useful at | ||
31 | * some point. All of the registers are stored as part of the | ||
32 | * upage. The upage should always be only one page. | ||
33 | * | ||
34 | * DATA: | ||
35 | * The data area is stored. We use current->end_text to | ||
36 | * current->brk to pick up all of the user variables, plus any | ||
37 | * memory that may have been malloced. No attempt is made to | ||
38 | * determine if a page is demand-zero or if a page is totally | ||
39 | * unused, we just cover the entire range. All of the addresses are | ||
40 | * rounded in such a way that an integral number of pages is | ||
41 | * written. | ||
42 | * | ||
43 | * STACK: | ||
44 | * We need the stack information in order to get a meaningful | ||
45 | * backtrace. We need to write the data from (esp) to | ||
46 | * current->start_stack, so we round each of these off in order to | ||
47 | * be able to write an integer number of pages. The minimum core | ||
48 | * file size is 3 pages, or 12288 bytes. | ||
49 | */ | ||
50 | |||
51 | /* When the kernel dumps core, it starts by dumping the user struct - | ||
52 | * this will be used by gdb to figure out where the data and stack segments | ||
53 | * are within the file, and what virtual addresses to use. | ||
54 | */ | ||
55 | struct user { | ||
56 | /* We start with the registers, to mimic the way that "memory" is returned | ||
57 | * from the ptrace(3,...) function. */ | ||
58 | struct user_context regs; | ||
59 | |||
60 | /* The rest of this junk is to help gdb figure out what goes where */ | ||
61 | unsigned long u_tsize; /* Text segment size (pages). */ | ||
62 | unsigned long u_dsize; /* Data segment size (pages). */ | ||
63 | unsigned long u_ssize; /* Stack segment size (pages). */ | ||
64 | unsigned long start_code; /* Starting virtual address of text. */ | ||
65 | unsigned long start_stack; /* Starting virtual address of stack area. | ||
66 | * This is actually the bottom of the stack, | ||
67 | * the top of the stack is always found in the | ||
68 | * esp register. */ | ||
69 | long int signal; /* Signal that caused the core dump. */ | ||
70 | |||
71 | unsigned long magic; /* To uniquely identify a core file */ | ||
72 | char u_comm[32]; /* User command that was responsible */ | ||
73 | }; | ||
74 | |||
75 | #define NBPG PAGE_SIZE | ||
76 | #define UPAGES 1 | ||
77 | #define HOST_TEXT_START_ADDR (u.start_code) | ||
78 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | ||
79 | |||
80 | #endif | ||