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annotate agent/src/os/solaris/proc/saproc_audit.cpp @ 3011:f00918f35c7f

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inlining and runtime interface related changes: added codeSize() and compilerStorage() to RiMethod HotSpotMethodResolved uses reflective methods instead of vmIds and survives compilations HotSpotResolvedType.isInitialized not represented as field (can change) inlining stores graphs into method objects and reuses them
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 16 Jun 2011 20:36:17 +0200
parents c18cbe5936b8
children
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1 /*
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2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include <link.h>
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26 #include <stdio.h>
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27 #include <stdlib.h>
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28 #include <string.h>
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29 #include <sys/types.h>
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30 #include <sys/stat.h>
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31 #include <fcntl.h>
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32 #include <limits.h>
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33 #include <varargs.h>
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34
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35 // This class sets up an interposer on open calls from libproc.so to
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36 // support a pathmap facility in the SA.
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37
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38 static uintptr_t* libproc_cookie;
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39 static uintptr_t* libc_cookie;
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40 static uintptr_t* libsaproc_cookie;
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41
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42
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43 uint_t
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44 la_version(uint_t version)
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45 {
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46 return (LAV_CURRENT);
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47 }
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48
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49
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50 uint_t
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51 la_objopen(Link_map * lmp, Lmid_t lmid, uintptr_t * cookie)
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52 {
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53 if (strstr(lmp->l_name, "/libproc.so") != NULL) {
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54 libproc_cookie = cookie;
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55 return LA_FLG_BINDFROM;
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56 }
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57 if (strstr(lmp->l_name, "/libc.so") != NULL) {
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58 libc_cookie = cookie;
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59 return LA_FLG_BINDTO;
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60 }
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61 if (strstr(lmp->l_name, "/libsaproc.so") != NULL) {
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62 libsaproc_cookie = cookie;
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63 return LA_FLG_BINDTO | LA_FLG_BINDFROM;
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64 }
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65 return 0;
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66 }
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67
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68
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69 #if defined(_LP64)
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70 uintptr_t
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71 la_symbind64(Elf64_Sym *symp, uint_t symndx, uintptr_t *refcook,
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72 uintptr_t *defcook, uint_t *sb_flags, const char *sym_name)
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73 #else
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74 uintptr_t
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75 la_symbind32(Elf32_Sym *symp, uint_t symndx, uintptr_t *refcook,
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76 uintptr_t *defcook, uint_t *sb_flags)
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77 #endif
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78 {
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79 #if !defined(_LP64)
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80 const char *sym_name = (const char *)symp->st_name;
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81 #endif
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82 if (strcmp(sym_name, "open") == 0 && refcook == libproc_cookie) {
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83 // redirect all open calls from libproc.so through libsaproc_open which will
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84 // try the alternate library locations first.
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85 void* handle = dlmopen(LM_ID_BASE, "libsaproc.so", RTLD_NOLOAD);
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86 if (handle == NULL) {
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87 fprintf(stderr, "libsaproc_audit.so: didn't find libsaproc.so during linking\n");
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88 } else {
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89 uintptr_t libsaproc_open = (uintptr_t)dlsym(handle, "libsaproc_open");
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90 if (libsaproc_open == 0) {
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91 fprintf(stderr, "libsaproc_audit.so: didn't find libsaproc_open during linking\n");
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92 } else {
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93 return libsaproc_open;
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94 }
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95 }
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96 }
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97 return symp->st_value;
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98 }