diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/user.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-mips/user.h')
-rw-r--r-- | include/asm-mips/user.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/include/asm-mips/user.h b/include/asm-mips/user.h new file mode 100644 index 000000000000..89bf8b4cab3c --- /dev/null +++ b/include/asm-mips/user.h | |||
@@ -0,0 +1,58 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file "COPYING" in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle | ||
7 | */ | ||
8 | #ifndef _ASM_USER_H | ||
9 | #define _ASM_USER_H | ||
10 | |||
11 | #include <asm/page.h> | ||
12 | #include <asm/reg.h> | ||
13 | |||
14 | /* | ||
15 | * Core file format: The core file is written in such a way that gdb | ||
16 | * can understand it and provide useful information to the user (under | ||
17 | * linux we use the `trad-core' bfd, NOT the irix-core). The file | ||
18 | * contents are as follows: | ||
19 | * | ||
20 | * upage: 1 page consisting of a user struct that tells gdb | ||
21 | * what is present in the file. Directly after this is a | ||
22 | * copy of the task_struct, which is currently not used by gdb, | ||
23 | * but it may come in handy at some point. All of the registers | ||
24 | * are stored as part of the upage. The upage should always be | ||
25 | * only one page long. | ||
26 | * data: The data segment follows next. We use current->end_text to | ||
27 | * current->brk to pick up all of the user variables, plus any memory | ||
28 | * that may have been sbrk'ed. No attempt is made to determine if a | ||
29 | * page is demand-zero or if a page is totally unused, we just cover | ||
30 | * the entire range. All of the addresses are rounded in such a way | ||
31 | * that an integral number of pages is written. | ||
32 | * stack: We need the stack information in order to get a meaningful | ||
33 | * backtrace. We need to write the data from usp to | ||
34 | * current->start_stack, so we round each of these in order to be able | ||
35 | * to write an integer number of pages. | ||
36 | */ | ||
37 | struct user { | ||
38 | unsigned long regs[EF_SIZE / /* integer and fp regs */ | ||
39 | sizeof(unsigned long) + 64]; | ||
40 | size_t u_tsize; /* text size (pages) */ | ||
41 | size_t u_dsize; /* data size (pages) */ | ||
42 | size_t u_ssize; /* stack size (pages) */ | ||
43 | unsigned long start_code; /* text starting address */ | ||
44 | unsigned long start_data; /* data starting address */ | ||
45 | unsigned long start_stack; /* stack starting address */ | ||
46 | long int signal; /* signal causing core dump */ | ||
47 | struct regs * u_ar0; /* help gdb find registers */ | ||
48 | unsigned long magic; /* identifies a core file */ | ||
49 | char u_comm[32]; /* user command name */ | ||
50 | }; | ||
51 | |||
52 | #define NBPG PAGE_SIZE | ||
53 | #define UPAGES 1 | ||
54 | #define HOST_TEXT_START_ADDR (u.start_code) | ||
55 | #define HOST_DATA_START_ADDR (u.start_data) | ||
56 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | ||
57 | |||
58 | #endif /* _ASM_USER_H */ | ||