diff options
Diffstat (limited to 'lib/mipsunwinder/backtrace-mipsunwinder.h')
-rw-r--r-- | lib/mipsunwinder/backtrace-mipsunwinder.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/lib/mipsunwinder/backtrace-mipsunwinder.h b/lib/mipsunwinder/backtrace-mipsunwinder.h new file mode 100644 index 0000000000..4d6288b5fe --- /dev/null +++ b/lib/mipsunwinder/backtrace-mipsunwinder.h | |||
@@ -0,0 +1,65 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2022 Aidan MacDonald | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | |||
22 | #ifndef BACKTRACE_MIPSUNWINDER_H | ||
23 | #define BACKTRACE_MIPSUNWINDER_H | ||
24 | |||
25 | /*#define MIPSUNWINDER_DEBUG*/ | ||
26 | |||
27 | #include <stdint.h> | ||
28 | |||
29 | enum { | ||
30 | MIPSBT_RA, | ||
31 | MIPSBT_NREG, | ||
32 | }; | ||
33 | |||
34 | struct mips_bt_context { | ||
35 | void* pc; | ||
36 | void* sp; | ||
37 | int depth; | ||
38 | uint32_t valid; | ||
39 | uint32_t reg[MIPSBT_NREG]; | ||
40 | #ifdef MIPSUNWINDER_DEBUG | ||
41 | void(*debugf)(void*, const char*, ...); | ||
42 | void* debug_arg; | ||
43 | #endif | ||
44 | }; | ||
45 | |||
46 | int mips_bt_step(struct mips_bt_context* ctx); | ||
47 | void mips_bt_start(struct mips_bt_context* ctx); | ||
48 | |||
49 | #ifdef MIPSUNWINDER_DEBUG | ||
50 | # define mips_bt_debug(ctx, ...) \ | ||
51 | do { struct mips_bt_context* __ctx = ctx; \ | ||
52 | if(__ctx->debugf) \ | ||
53 | __ctx->debugf(__ctx->debug_arg, __VA_ARGS__);\ | ||
54 | } while(0) | ||
55 | #else | ||
56 | # define mips_bt_debug(...) do { } while(0) | ||
57 | #endif | ||
58 | |||
59 | /* NOTE: ignores pcAddr and spAddr, backtrace starts from caller */ | ||
60 | void rb_backtrace(int pcAddr, int spAddr, unsigned* line); | ||
61 | |||
62 | /* given struct mips_bt_context argument, print stack traceback */ | ||
63 | void rb_backtrace_ctx(void* arg, unsigned* line); | ||
64 | |||
65 | #endif /* BACKTRACE_MIPSUNWINDER_H */ | ||