diff options
Diffstat (limited to 'include/asm-sh64/user.h')
-rw-r--r-- | include/asm-sh64/user.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-sh64/user.h b/include/asm-sh64/user.h new file mode 100644 index 000000000000..8f32f39a8ca9 --- /dev/null +++ b/include/asm-sh64/user.h | |||
@@ -0,0 +1,71 @@ | |||
1 | #ifndef __ASM_SH64_USER_H | ||
2 | #define __ASM_SH64_USER_H | ||
3 | |||
4 | /* | ||
5 | * This file is subject to the terms and conditions of the GNU General Public | ||
6 | * License. See the file "COPYING" in the main directory of this archive | ||
7 | * for more details. | ||
8 | * | ||
9 | * include/asm-sh64/user.h | ||
10 | * | ||
11 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
12 | * | ||
13 | */ | ||
14 | |||
15 | #include <linux/types.h> | ||
16 | #include <asm/processor.h> | ||
17 | #include <asm/ptrace.h> | ||
18 | #include <asm/page.h> | ||
19 | |||
20 | /* | ||
21 | * Core file format: The core file is written in such a way that gdb | ||
22 | * can understand it and provide useful information to the user (under | ||
23 | * linux we use the `trad-core' bfd). The file contents are as follows: | ||
24 | * | ||
25 | * upage: 1 page consisting of a user struct that tells gdb | ||
26 | * what is present in the file. Directly after this is a | ||
27 | * copy of the task_struct, which is currently not used by gdb, | ||
28 | * but it may come in handy at some point. All of the registers | ||
29 | * are stored as part of the upage. The upage should always be | ||
30 | * only one page long. | ||
31 | * data: The data segment follows next. We use current->end_text to | ||
32 | * current->brk to pick up all of the user variables, plus any memory | ||
33 | * that may have been sbrk'ed. No attempt is made to determine if a | ||
34 | * page is demand-zero or if a page is totally unused, we just cover | ||
35 | * the entire range. All of the addresses are rounded in such a way | ||
36 | * that an integral number of pages is written. | ||
37 | * stack: We need the stack information in order to get a meaningful | ||
38 | * backtrace. We need to write the data from usp to | ||
39 | * current->start_stack, so we round each of these in order to be able | ||
40 | * to write an integer number of pages. | ||
41 | */ | ||
42 | |||
43 | struct user_fpu_struct { | ||
44 | unsigned long long fp_regs[32]; | ||
45 | unsigned int fpscr; | ||
46 | }; | ||
47 | |||
48 | struct user { | ||
49 | struct pt_regs regs; /* entire machine state */ | ||
50 | struct user_fpu_struct fpu; /* Math Co-processor registers */ | ||
51 | int u_fpvalid; /* True if math co-processor being used */ | ||
52 | size_t u_tsize; /* text size (pages) */ | ||
53 | size_t u_dsize; /* data size (pages) */ | ||
54 | size_t u_ssize; /* stack size (pages) */ | ||
55 | unsigned long start_code; /* text starting address */ | ||
56 | unsigned long start_data; /* data starting address */ | ||
57 | unsigned long start_stack; /* stack starting address */ | ||
58 | long int signal; /* signal causing core dump */ | ||
59 | struct regs * u_ar0; /* help gdb find registers */ | ||
60 | struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */ | ||
61 | unsigned long magic; /* identifies a core file */ | ||
62 | char u_comm[32]; /* user command name */ | ||
63 | }; | ||
64 | |||
65 | #define NBPG PAGE_SIZE | ||
66 | #define UPAGES 1 | ||
67 | #define HOST_TEXT_START_ADDR (u.start_code) | ||
68 | #define HOST_DATA_START_ADDR (u.start_data) | ||
69 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | ||
70 | |||
71 | #endif /* __ASM_SH64_USER_H */ | ||