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agent/src/os/linux/libproc_impl.h@9fae07c31641 (annotated)

agent/src/os/linux/libproc_impl.h

Fri, 25 Jan 2013 16:50:33 -0800

author

morris

date

Fri, 25 Jan 2013 16:50:33 -0800

changeset 4535

9fae07c31641

parent 1907

c18cbe5936b8

child 4599

2394a89e89f4

permissions

-rw-r--r--

6518907: cleanup IA64 specific code in Hotspot
Summary: removed unused IA64 specific code
Reviewed-by: twisti, kvn, dholmes

duke@435	1	/*
trims@1907	2	* Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	#ifndef _LIBPROC_IMPL_H_
duke@435	26	#define _LIBPROC_IMPL_H_
duke@435	27
duke@435	28	#include <unistd.h>
duke@435	29	#include <limits.h>
duke@435	30	#include "libproc.h"
duke@435	31	#include "symtab.h"
duke@435	32
duke@435	33	// data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h
duke@435	34
duke@435	35	#define BUF_SIZE (PATH_MAX + NAME_MAX + 1)
duke@435	36
duke@435	37	// list of shared objects
duke@435	38	typedef struct lib_info {
duke@435	39	char name[BUF_SIZE];
duke@435	40	uintptr_t base;
duke@435	41	struct symtab* symtab;
duke@435	42	int fd; // file descriptor for lib
duke@435	43	struct lib_info* next;
duke@435	44	} lib_info;
duke@435	45
duke@435	46	// list of threads
duke@435	47	typedef struct thread_info {
duke@435	48	lwpid_t lwp_id;
duke@435	49	pthread_t pthread_id; // not used cores, always -1
duke@435	50	struct user_regs_struct regs; // not for process, core uses for caching regset
duke@435	51	struct thread_info* next;
duke@435	52	} thread_info;
duke@435	53
duke@435	54	// list of virtual memory maps
duke@435	55	typedef struct map_info {
duke@435	56	int fd; // file descriptor
duke@435	57	off_t offset; // file offset of this mapping
duke@435	58	uintptr_t vaddr; // starting virtual address
duke@435	59	size_t memsz; // size of the mapping
duke@435	60	struct map_info* next;
duke@435	61	} map_info;
duke@435	62
duke@435	63	// vtable for ps_prochandle
duke@435	64	typedef struct ps_prochandle_ops {
duke@435	65	// "derived class" clean-up
duke@435	66	void (*release)(struct ps_prochandle* ph);
duke@435	67	// read from debuggee
duke@435	68	bool (*p_pread)(struct ps_prochandle *ph,
duke@435	69	uintptr_t addr, char *buf, size_t size);
duke@435	70	// write into debuggee
duke@435	71	bool (*p_pwrite)(struct ps_prochandle *ph,
duke@435	72	uintptr_t addr, const char *buf , size_t size);
duke@435	73	// get integer regset of a thread
duke@435	74	bool (*get_lwp_regs)(struct ps_prochandle* ph, lwpid_t lwp_id, struct user_regs_struct* regs);
duke@435	75	} ps_prochandle_ops;
duke@435	76
duke@435	77	// the ps_prochandle
duke@435	78
duke@435	79	struct core_data {
duke@435	80	int core_fd; // file descriptor of core file
duke@435	81	int exec_fd; // file descriptor of exec file
duke@435	82	int interp_fd; // file descriptor of interpreter (ld-linux.so.2)
duke@435	83	// part of the class sharing workaround
duke@435	84	int classes_jsa_fd; // file descriptor of class share archive
duke@435	85	uintptr_t dynamic_addr; // address of dynamic section of a.out
duke@435	86	uintptr_t ld_base_addr; // base address of ld.so
duke@435	87	size_t num_maps; // number of maps.
duke@435	88	map_info* maps; // maps in a linked list
duke@435	89	// part of the class sharing workaround
duke@435	90	map_info* class_share_maps;// class share maps in a linked list
duke@435	91	map_info** map_array; // sorted (by vaddr) array of map_info pointers
duke@435	92	};
duke@435	93
duke@435	94	struct ps_prochandle {
duke@435	95	ps_prochandle_ops* ops; // vtable ptr
duke@435	96	pid_t pid;
duke@435	97	int num_libs;
duke@435	98	lib_info* libs; // head of lib list
duke@435	99	lib_info* lib_tail; // tail of lib list - to append at the end
duke@435	100	int num_threads;
duke@435	101	thread_info* threads; // head of thread list
duke@435	102	struct core_data* core; // data only used for core dumps, NULL for process
duke@435	103	};
duke@435	104
duke@435	105	int pathmap_open(const char* name);
duke@435	106
duke@435	107	void print_debug(const char* format,...);
duke@435	108	bool is_debug();
duke@435	109
duke@435	110	typedef bool (*thread_info_callback)(struct ps_prochandle* ph, pthread_t pid, lwpid_t lwpid);
duke@435	111
duke@435	112	// reads thread info using libthread_db and calls above callback for each thread
duke@435	113	bool read_thread_info(struct ps_prochandle* ph, thread_info_callback cb);
duke@435	114
duke@435	115	// adds a new shared object to lib list, returns NULL on failure
duke@435	116	lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base);
duke@435	117
duke@435	118	// adds a new shared object to lib list, supply open lib file descriptor as well
duke@435	119	lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd,
duke@435	120	uintptr_t base);
duke@435	121
duke@435	122	// adds a new thread to threads list, returns NULL on failure
duke@435	123	thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
duke@435	124
duke@435	125	// a test for ELF signature without using libelf
duke@435	126	bool is_elf_file(int fd);
duke@435	127
duke@435	128	#endif //_LIBPROC_IMPL_H_