diff options
author | Paul Mundt <lethal@linux-sh.org> | 2008-07-28 19:09:44 -0400 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-07-28 19:09:44 -0400 |
commit | f15cbe6f1a4b4d9df59142fc8e4abb973302cf44 (patch) | |
tree | 774d7b11abaaf33561ab8268bf51ddd9ceb79025 /arch/sh/include/asm/user.h | |
parent | 25326277d8d1393d1c66240e6255aca780f9e3eb (diff) |
sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.
Most of the moving about was done with Sam's directions at:
http://marc.info/?l=linux-sh&m=121724823706062&w=2
with subsequent hacking and fixups entirely my fault.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/user.h')
-rw-r--r-- | arch/sh/include/asm/user.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/sh/include/asm/user.h b/arch/sh/include/asm/user.h new file mode 100644 index 000000000000..8fd3cf6c58d4 --- /dev/null +++ b/arch/sh/include/asm/user.h | |||
@@ -0,0 +1,67 @@ | |||
1 | #ifndef __ASM_SH_USER_H | ||
2 | #define __ASM_SH_USER_H | ||
3 | |||
4 | #include <asm/ptrace.h> | ||
5 | #include <asm/page.h> | ||
6 | |||
7 | /* | ||
8 | * Core file format: The core file is written in such a way that gdb | ||
9 | * can understand it and provide useful information to the user (under | ||
10 | * linux we use the `trad-core' bfd). The file contents are as follows: | ||
11 | * | ||
12 | * upage: 1 page consisting of a user struct that tells gdb | ||
13 | * what is present in the file. Directly after this is a | ||
14 | * copy of the task_struct, which is currently not used by gdb, | ||
15 | * but it may come in handy at some point. All of the registers | ||
16 | * are stored as part of the upage. The upage should always be | ||
17 | * only one page long. | ||
18 | * data: The data segment follows next. We use current->end_text to | ||
19 | * current->brk to pick up all of the user variables, plus any memory | ||
20 | * that may have been sbrk'ed. No attempt is made to determine if a | ||
21 | * page is demand-zero or if a page is totally unused, we just cover | ||
22 | * the entire range. All of the addresses are rounded in such a way | ||
23 | * that an integral number of pages is written. | ||
24 | * stack: We need the stack information in order to get a meaningful | ||
25 | * backtrace. We need to write the data from usp to | ||
26 | * current->start_stack, so we round each of these in order to be able | ||
27 | * to write an integer number of pages. | ||
28 | */ | ||
29 | |||
30 | #if defined(__SH5__) || defined(CONFIG_CPU_SH5) | ||
31 | struct user_fpu_struct { | ||
32 | unsigned long fp_regs[32]; | ||
33 | unsigned int fpscr; | ||
34 | }; | ||
35 | #else | ||
36 | struct user_fpu_struct { | ||
37 | unsigned long fp_regs[16]; | ||
38 | unsigned long xfp_regs[16]; | ||
39 | unsigned long fpscr; | ||
40 | unsigned long fpul; | ||
41 | }; | ||
42 | #endif | ||
43 | |||
44 | struct user { | ||
45 | struct pt_regs regs; /* entire machine state */ | ||
46 | struct user_fpu_struct fpu; /* Math Co-processor registers */ | ||
47 | int u_fpvalid; /* True if math co-processor being used */ | ||
48 | size_t u_tsize; /* text size (pages) */ | ||
49 | size_t u_dsize; /* data size (pages) */ | ||
50 | size_t u_ssize; /* stack size (pages) */ | ||
51 | unsigned long start_code; /* text starting address */ | ||
52 | unsigned long start_data; /* data starting address */ | ||
53 | unsigned long start_stack; /* stack starting address */ | ||
54 | long int signal; /* signal causing core dump */ | ||
55 | unsigned long u_ar0; /* help gdb find registers */ | ||
56 | struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */ | ||
57 | unsigned long magic; /* identifies a core file */ | ||
58 | char u_comm[32]; /* user command name */ | ||
59 | }; | ||
60 | |||
61 | #define NBPG PAGE_SIZE | ||
62 | #define UPAGES 1 | ||
63 | #define HOST_TEXT_START_ADDR (u.start_code) | ||
64 | #define HOST_DATA_START_ADDR (u.start_data) | ||
65 | #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) | ||
66 | |||
67 | #endif /* __ASM_SH_USER_H */ | ||