Mercurial > hg > truffle
annotate agent/src/os/linux/libproc_impl.h @ 8058:2394a89e89f4
8008088: SA can hang the VM
Reviewed-by: mgronlun, sla, dholmes
| author | rbackman |
|---|---|
| date | Wed, 13 Feb 2013 09:46:19 +0100 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 8058 | 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #ifndef _LIBPROC_IMPL_H_ | |
| 26 #define _LIBPROC_IMPL_H_ | |
| 27 | |
| 28 #include <unistd.h> | |
| 29 #include <limits.h> | |
| 30 #include "libproc.h" | |
| 31 #include "symtab.h" | |
| 32 | |
| 33 // data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h | |
| 34 | |
| 35 #define BUF_SIZE (PATH_MAX + NAME_MAX + 1) | |
| 36 | |
| 37 // list of shared objects | |
| 38 typedef struct lib_info { | |
| 39 char name[BUF_SIZE]; | |
| 40 uintptr_t base; | |
| 41 struct symtab* symtab; | |
| 42 int fd; // file descriptor for lib | |
| 43 struct lib_info* next; | |
| 44 } lib_info; | |
| 45 | |
| 46 // list of threads | |
| 47 typedef struct thread_info { | |
| 48 lwpid_t lwp_id; | |
| 49 pthread_t pthread_id; // not used cores, always -1 | |
| 50 struct user_regs_struct regs; // not for process, core uses for caching regset | |
| 51 struct thread_info* next; | |
| 52 } thread_info; | |
| 53 | |
| 54 // list of virtual memory maps | |
| 55 typedef struct map_info { | |
| 56 int fd; // file descriptor | |
| 57 off_t offset; // file offset of this mapping | |
| 58 uintptr_t vaddr; // starting virtual address | |
| 59 size_t memsz; // size of the mapping | |
| 60 struct map_info* next; | |
| 61 } map_info; | |
| 62 | |
| 63 // vtable for ps_prochandle | |
| 64 typedef struct ps_prochandle_ops { | |
| 65 // "derived class" clean-up | |
| 66 void (*release)(struct ps_prochandle* ph); | |
| 67 // read from debuggee | |
| 68 bool (*p_pread)(struct ps_prochandle *ph, | |
| 69 uintptr_t addr, char *buf, size_t size); | |
| 70 // write into debuggee | |
| 71 bool (*p_pwrite)(struct ps_prochandle *ph, | |
| 72 uintptr_t addr, const char *buf , size_t size); | |
| 73 // get integer regset of a thread | |
| 74 bool (*get_lwp_regs)(struct ps_prochandle* ph, lwpid_t lwp_id, struct user_regs_struct* regs); | |
| 75 } ps_prochandle_ops; | |
| 76 | |
| 77 // the ps_prochandle | |
| 78 | |
| 79 struct core_data { | |
| 80 int core_fd; // file descriptor of core file | |
| 81 int exec_fd; // file descriptor of exec file | |
| 82 int interp_fd; // file descriptor of interpreter (ld-linux.so.2) | |
| 83 // part of the class sharing workaround | |
| 84 int classes_jsa_fd; // file descriptor of class share archive | |
| 85 uintptr_t dynamic_addr; // address of dynamic section of a.out | |
| 86 uintptr_t ld_base_addr; // base address of ld.so | |
| 87 size_t num_maps; // number of maps. | |
| 88 map_info* maps; // maps in a linked list | |
| 89 // part of the class sharing workaround | |
| 90 map_info* class_share_maps;// class share maps in a linked list | |
| 91 map_info** map_array; // sorted (by vaddr) array of map_info pointers | |
| 92 }; | |
| 93 | |
| 94 struct ps_prochandle { | |
| 95 ps_prochandle_ops* ops; // vtable ptr | |
| 96 pid_t pid; | |
| 97 int num_libs; | |
| 98 lib_info* libs; // head of lib list | |
| 99 lib_info* lib_tail; // tail of lib list - to append at the end | |
| 100 int num_threads; | |
| 101 thread_info* threads; // head of thread list | |
| 102 struct core_data* core; // data only used for core dumps, NULL for process | |
| 103 }; | |
| 104 | |
| 105 int pathmap_open(const char* name); | |
| 106 | |
| 107 void print_debug(const char* format,...); | |
| 8058 | 108 void print_error(const char* format,...); |
| 0 | 109 bool is_debug(); |
| 110 | |
| 111 typedef bool (*thread_info_callback)(struct ps_prochandle* ph, pthread_t pid, lwpid_t lwpid); | |
| 112 | |
| 113 // reads thread info using libthread_db and calls above callback for each thread | |
| 114 bool read_thread_info(struct ps_prochandle* ph, thread_info_callback cb); | |
| 115 | |
| 116 // adds a new shared object to lib list, returns NULL on failure | |
| 117 lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base); | |
| 118 | |
| 119 // adds a new shared object to lib list, supply open lib file descriptor as well | |
| 120 lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd, | |
| 121 uintptr_t base); | |
| 122 | |
| 123 // adds a new thread to threads list, returns NULL on failure | |
| 124 thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id); | |
| 125 | |
| 126 // a test for ELF signature without using libelf | |
| 127 bool is_elf_file(int fd); | |
| 128 | |
| 129 #endif //_LIBPROC_IMPL_H_ |