diff options
Diffstat (limited to 'include/asm-sparc/kdebug.h')
-rw-r--r-- | include/asm-sparc/kdebug.h | 81 |
1 files changed, 8 insertions, 73 deletions
diff --git a/include/asm-sparc/kdebug.h b/include/asm-sparc/kdebug.h index f69fe7d84b3c..fe07d00d0534 100644 --- a/include/asm-sparc/kdebug.h +++ b/include/asm-sparc/kdebug.h | |||
@@ -1,73 +1,8 @@ | |||
1 | /* | 1 | #ifndef ___ASM_SPARC_KDEBUG_H |
2 | * kdebug.h: Defines and definitions for debugging the Linux kernel | 2 | #define ___ASM_SPARC_KDEBUG_H |
3 | * under various kernel debuggers. | 3 | #if defined(__sparc__) && defined(__arch64__) |
4 | * | 4 | #include <asm-sparc/kdebug_64.h> |
5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | 5 | #else |
6 | */ | 6 | #include <asm-sparc/kdebug_32.h> |
7 | #ifndef _SPARC_KDEBUG_H | 7 | #endif |
8 | #define _SPARC_KDEBUG_H | 8 | #endif |
9 | |||
10 | #include <asm/openprom.h> | ||
11 | #include <asm/vaddrs.h> | ||
12 | |||
13 | /* Breakpoints are enter through trap table entry 126. So in sparc assembly | ||
14 | * if you want to drop into the debugger you do: | ||
15 | * | ||
16 | * t DEBUG_BP_TRAP | ||
17 | */ | ||
18 | |||
19 | #define DEBUG_BP_TRAP 126 | ||
20 | |||
21 | #ifndef __ASSEMBLY__ | ||
22 | /* The debug vector is passed in %o1 at boot time. It is a pointer to | ||
23 | * a structure in the debuggers address space. Here is its format. | ||
24 | */ | ||
25 | |||
26 | typedef unsigned int (*debugger_funct)(void); | ||
27 | |||
28 | struct kernel_debug { | ||
29 | /* First the entry point into the debugger. You jump here | ||
30 | * to give control over to the debugger. | ||
31 | */ | ||
32 | unsigned long kdebug_entry; | ||
33 | unsigned long kdebug_trapme; /* Figure out later... */ | ||
34 | /* The following is the number of pages that the debugger has | ||
35 | * taken from to total pool. | ||
36 | */ | ||
37 | unsigned long *kdebug_stolen_pages; | ||
38 | /* Ok, after you remap yourself and/or change the trap table | ||
39 | * from what you were left with at boot time you have to call | ||
40 | * this synchronization function so the debugger can check out | ||
41 | * what you have done. | ||
42 | */ | ||
43 | debugger_funct teach_debugger; | ||
44 | }; /* I think that is it... */ | ||
45 | |||
46 | extern struct kernel_debug *linux_dbvec; | ||
47 | |||
48 | /* Use this macro in C-code to enter the debugger. */ | ||
49 | static inline void sp_enter_debugger(void) | ||
50 | { | ||
51 | __asm__ __volatile__("jmpl %0, %%o7\n\t" | ||
52 | "nop\n\t" : : | ||
53 | "r" (linux_dbvec) : "o7", "memory"); | ||
54 | } | ||
55 | |||
56 | #define SP_ENTER_DEBUGGER do { \ | ||
57 | if((linux_dbvec!=0) && ((*(short *)linux_dbvec)!=-1)) \ | ||
58 | sp_enter_debugger(); \ | ||
59 | } while(0) | ||
60 | |||
61 | enum die_val { | ||
62 | DIE_UNUSED, | ||
63 | }; | ||
64 | |||
65 | #endif /* !(__ASSEMBLY__) */ | ||
66 | |||
67 | /* Some nice offset defines for assembler code. */ | ||
68 | #define KDEBUG_ENTRY_OFF 0x0 | ||
69 | #define KDEBUG_DUNNO_OFF 0x4 | ||
70 | #define KDEBUG_DUNNO2_OFF 0x8 | ||
71 | #define KDEBUG_TEACH_OFF 0xc | ||
72 | |||
73 | #endif /* !(_SPARC_KDEBUG_H) */ | ||