| [263bda2] | 1 | /*
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| 2 | * Copyright (c) 2010 Martin Decky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup genericdebug
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | /**
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| 34 | * @file
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| 35 | * @brief Kernel instrumentation functions.
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| 36 | */
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| 37 |
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| 38 | #ifdef CONFIG_LOG
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| 39 |
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| 40 | #include <debug.h>
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| 41 | #include <symtab.h>
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| 42 | #include <errno.h>
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| 43 | #include <print.h>
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| 44 |
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| 45 | void __cyg_profile_func_enter(void *fn, void *call_site)
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| 46 | {
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| 47 | const char *fn_sym = symtab_fmt_name_lookup((uintptr_t) fn);
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| 48 |
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| 49 | const char *call_site_sym;
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| 50 | uintptr_t call_site_off;
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| 51 |
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| 52 | if (symtab_name_lookup((uintptr_t) call_site, &call_site_sym,
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| 53 | &call_site_off) == EOK)
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| 54 | printf("%s:%p->%s\n", call_site_sym, call_site_off, fn_sym);
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| 55 | else
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| 56 | printf("->%s\n", fn_sym);
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| 57 | }
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| 58 |
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| 59 | void __cyg_profile_func_exit(void *fn, void *call_site)
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| 60 | {
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| 61 | const char *fn_sym = symtab_fmt_name_lookup((uintptr_t) fn);
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| 62 |
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| 63 | const char *call_site_sym;
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| 64 | uintptr_t call_site_off;
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| 65 |
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| 66 | if (symtab_name_lookup((uintptr_t) call_site, &call_site_sym,
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| 67 | &call_site_off) == EOK)
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| 68 | printf("%s:%p<-%s\n", call_site_sym, call_site_off, fn_sym);
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| 69 | else
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| 70 | printf("<-%s\n", fn_sym);
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| 71 | }
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| 72 |
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| 73 | #endif /* CONFIG_LOG */
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| 74 |
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| 75 | /** @}
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| 76 | */
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