• file
• revisions
• annotate
• diff
• comparison
• raw

agent/src/os/bsd/libproc_impl.h@2394a89e89f4 (annotated)

agent/src/os/bsd/libproc_impl.h

Wed, 13 Feb 2013 09:46:19 +0100

author

rbackman

date

Wed, 13 Feb 2013 09:46:19 +0100

changeset 4599

2394a89e89f4

parent 3156

f08d439fab8c

child 4750

39432a1cefdd

permissions

-rw-r--r--

8008088: SA can hang the VM
Reviewed-by: mgronlun, sla, dholmes

never@3156	1	/*
rbackman@4599	2	* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
never@3156	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@3156	4	*
never@3156	5	* This code is free software; you can redistribute it and/or modify it
never@3156	6	* under the terms of the GNU General Public License version 2 only, as
never@3156	7	* published by the Free Software Foundation.
never@3156	8	*
never@3156	9	* This code is distributed in the hope that it will be useful, but WITHOUT
never@3156	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@3156	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@3156	12	* version 2 for more details (a copy is included in the LICENSE file that
never@3156	13	* accompanied this code).
never@3156	14	*
never@3156	15	* You should have received a copy of the GNU General Public License version
never@3156	16	* 2 along with this work; if not, write to the Free Software Foundation,
never@3156	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@3156	18	*
never@3156	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
never@3156	20	* or visit www.oracle.com if you need additional information or have any
never@3156	21	* questions.
never@3156	22	*
never@3156	23	*/
never@3156	24
never@3156	25	#ifndef _LIBPROC_IMPL_H_
never@3156	26	#define _LIBPROC_IMPL_H_
never@3156	27
never@3156	28	#include <unistd.h>
never@3156	29	#include <limits.h>
never@3156	30	#include "libproc.h"
never@3156	31	#include "symtab.h"
never@3156	32
never@3156	33	// data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h
never@3156	34
never@3156	35	#define BUF_SIZE (PATH_MAX + NAME_MAX + 1)
never@3156	36
never@3156	37	// list of shared objects
never@3156	38	typedef struct lib_info {
never@3156	39	char name[BUF_SIZE];
never@3156	40	uintptr_t base;
never@3156	41	struct symtab* symtab;
never@3156	42	int fd; // file descriptor for lib
never@3156	43	struct lib_info* next;
never@3156	44	} lib_info;
never@3156	45
never@3156	46	// list of threads
never@3156	47	typedef struct thread_info {
never@3156	48	lwpid_t lwp_id;
never@3156	49	pthread_t pthread_id; // not used cores, always -1
never@3156	50	struct reg regs; // not for process, core uses for caching regset
never@3156	51	struct thread_info* next;
never@3156	52	} thread_info;
never@3156	53
never@3156	54	// list of virtual memory maps
never@3156	55	typedef struct map_info {
never@3156	56	int fd; // file descriptor
never@3156	57	off_t offset; // file offset of this mapping
never@3156	58	uintptr_t vaddr; // starting virtual address
never@3156	59	size_t memsz; // size of the mapping
never@3156	60	struct map_info* next;
never@3156	61	} map_info;
never@3156	62
never@3156	63	// vtable for ps_prochandle
never@3156	64	typedef struct ps_prochandle_ops {
never@3156	65	// "derived class" clean-up
never@3156	66	void (*release)(struct ps_prochandle* ph);
never@3156	67	// read from debuggee
never@3156	68	bool (*p_pread)(struct ps_prochandle *ph,
never@3156	69	uintptr_t addr, char *buf, size_t size);
never@3156	70	// write into debuggee
never@3156	71	bool (*p_pwrite)(struct ps_prochandle *ph,
never@3156	72	uintptr_t addr, const char *buf , size_t size);
never@3156	73	// get integer regset of a thread
never@3156	74	bool (*get_lwp_regs)(struct ps_prochandle* ph, lwpid_t lwp_id, struct reg* regs);
never@3156	75	// get info on thread
never@3156	76	bool (*get_lwp_info)(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
never@3156	77	} ps_prochandle_ops;
never@3156	78
never@3156	79	// the ps_prochandle
never@3156	80
never@3156	81	struct core_data {
never@3156	82	int core_fd; // file descriptor of core file
never@3156	83	int exec_fd; // file descriptor of exec file
never@3156	84	int interp_fd; // file descriptor of interpreter (ld-elf.so.1)
never@3156	85	// part of the class sharing workaround
never@3156	86	int classes_jsa_fd; // file descriptor of class share archive
never@3156	87	uintptr_t dynamic_addr; // address of dynamic section of a.out
never@3156	88	uintptr_t ld_base_addr; // base address of ld.so
never@3156	89	size_t num_maps; // number of maps.
never@3156	90	map_info* maps; // maps in a linked list
never@3156	91	// part of the class sharing workaround
never@3156	92	map_info* class_share_maps;// class share maps in a linked list
never@3156	93	map_info** map_array; // sorted (by vaddr) array of map_info pointers
never@3156	94	};
never@3156	95
never@3156	96	struct ps_prochandle {
never@3156	97	ps_prochandle_ops* ops; // vtable ptr
never@3156	98	pid_t pid;
never@3156	99	int num_libs;
never@3156	100	lib_info* libs; // head of lib list
never@3156	101	lib_info* lib_tail; // tail of lib list - to append at the end
never@3156	102	int num_threads;
never@3156	103	thread_info* threads; // head of thread list
never@3156	104	struct core_data* core; // data only used for core dumps, NULL for process
never@3156	105	};
never@3156	106
never@3156	107	int pathmap_open(const char* name);
never@3156	108
never@3156	109	void print_debug(const char* format,...);
rbackman@4599	110	void print_error(const char* format,...);
never@3156	111	bool is_debug();
never@3156	112
never@3156	113	typedef bool (*thread_info_callback)(struct ps_prochandle* ph, pthread_t pid, lwpid_t lwpid);
never@3156	114
never@3156	115	// reads thread info using libthread_db and calls above callback for each thread
never@3156	116	bool read_thread_info(struct ps_prochandle* ph, thread_info_callback cb);
never@3156	117
never@3156	118	// adds a new shared object to lib list, returns NULL on failure
never@3156	119	lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base);
never@3156	120
never@3156	121	// adds a new shared object to lib list, supply open lib file descriptor as well
never@3156	122	lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd,
never@3156	123	uintptr_t base);
never@3156	124
never@3156	125	// adds a new thread to threads list, returns NULL on failure
never@3156	126	thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
never@3156	127
never@3156	128	// a test for ELF signature without using libelf
never@3156	129	bool is_elf_file(int fd);
never@3156	130
never@3156	131	#endif //_LIBPROC_IMPL_H_