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agent/src/os/bsd/libproc_impl.h@dbb05f6d93c4 (annotated)

agent/src/os/bsd/libproc_impl.h

Mon, 28 Jul 2014 15:06:38 -0700

author

fzhinkin

date

Mon, 28 Jul 2014 15:06:38 -0700

changeset 6997

dbb05f6d93c4

parent 4750

39432a1cefdd

child 6876

710a3c8b516e

permissions

-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

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
minqi@4750	33	#ifdef __APPLE__
minqi@4750	34	#include <inttypes.h> // for PRIx64, 32, ...
minqi@4750	35	#include <pthread.h>
minqi@4750	36	#include <mach-o/loader.h>
minqi@4750	37	#include <mach-o/nlist.h>
minqi@4750	38	#include <mach-o/fat.h>
minqi@4750	39
minqi@4750	40	#ifndef register_t
minqi@4750	41	#define register_t uint64_t
minqi@4750	42	#endif
minqi@4750	43
minqi@4750	44	/*** registers copied from bsd/amd64 */
minqi@4750	45	typedef struct reg {
minqi@4750	46	register_t r_r15;
minqi@4750	47	register_t r_r14;
minqi@4750	48	register_t r_r13;
minqi@4750	49	register_t r_r12;
minqi@4750	50	register_t r_r11;
minqi@4750	51	register_t r_r10;
minqi@4750	52	register_t r_r9;
minqi@4750	53	register_t r_r8;
minqi@4750	54	register_t r_rdi;
minqi@4750	55	register_t r_rsi;
minqi@4750	56	register_t r_rbp;
minqi@4750	57	register_t r_rbx;
minqi@4750	58	register_t r_rdx;
minqi@4750	59	register_t r_rcx;
minqi@4750	60	register_t r_rax;
minqi@4750	61	uint32_t r_trapno; // not used
minqi@4750	62	uint16_t r_fs;
minqi@4750	63	uint16_t r_gs;
minqi@4750	64	uint32_t r_err; // not used
minqi@4750	65	uint16_t r_es; // not used
minqi@4750	66	uint16_t r_ds; // not used
minqi@4750	67	register_t r_rip;
minqi@4750	68	register_t r_cs;
minqi@4750	69	register_t r_rflags;
minqi@4750	70	register_t r_rsp;
minqi@4750	71	register_t r_ss; // not used
minqi@4750	72	} reg;
minqi@4750	73
minqi@4750	74	// convenient defs
minqi@4750	75	typedef struct mach_header_64 mach_header_64;
minqi@4750	76	typedef struct load_command load_command;
minqi@4750	77	typedef struct segment_command_64 segment_command_64;
minqi@4750	78	typedef struct thread_command thread_command;
minqi@4750	79	typedef struct dylib_command dylib_command;
minqi@4750	80	typedef struct symtab_command symtab_command;
minqi@4750	81	typedef struct nlist_64 nlist_64;
minqi@4750	82	#else
minqi@4750	83	#include <thread_db.h>
minqi@4750	84	#include "salibelf.h"
minqi@4750	85	#endif // __APPLE__
minqi@4750	86
never@3156	87	// data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h
never@3156	88
never@3156	89	#define BUF_SIZE (PATH_MAX + NAME_MAX + 1)
never@3156	90
never@3156	91	// list of shared objects
never@3156	92	typedef struct lib_info {
never@3156	93	char name[BUF_SIZE];
never@3156	94	uintptr_t base;
never@3156	95	struct symtab* symtab;
never@3156	96	int fd; // file descriptor for lib
never@3156	97	struct lib_info* next;
never@3156	98	} lib_info;
never@3156	99
never@3156	100	// list of threads
minqi@4750	101	typedef struct sa_thread_info {
minqi@4750	102	lwpid_t lwp_id; // same as pthread_t
minqi@4750	103	pthread_t pthread_id; //
never@3156	104	struct reg regs; // not for process, core uses for caching regset
minqi@4750	105	struct sa_thread_info* next;
minqi@4750	106	} sa_thread_info;
never@3156	107
never@3156	108	// list of virtual memory maps
never@3156	109	typedef struct map_info {
never@3156	110	int fd; // file descriptor
never@3156	111	off_t offset; // file offset of this mapping
never@3156	112	uintptr_t vaddr; // starting virtual address
never@3156	113	size_t memsz; // size of the mapping
never@3156	114	struct map_info* next;
never@3156	115	} map_info;
never@3156	116
never@3156	117	// vtable for ps_prochandle
never@3156	118	typedef struct ps_prochandle_ops {
never@3156	119	// "derived class" clean-up
never@3156	120	void (*release)(struct ps_prochandle* ph);
never@3156	121	// read from debuggee
never@3156	122	bool (*p_pread)(struct ps_prochandle *ph,
never@3156	123	uintptr_t addr, char *buf, size_t size);
never@3156	124	// write into debuggee
never@3156	125	bool (*p_pwrite)(struct ps_prochandle *ph,
never@3156	126	uintptr_t addr, const char *buf , size_t size);
never@3156	127	// get integer regset of a thread
never@3156	128	bool (*get_lwp_regs)(struct ps_prochandle* ph, lwpid_t lwp_id, struct reg* regs);
never@3156	129	// get info on thread
never@3156	130	bool (*get_lwp_info)(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
never@3156	131	} ps_prochandle_ops;
never@3156	132
never@3156	133	// the ps_prochandle
never@3156	134
never@3156	135	struct core_data {
never@3156	136	int core_fd; // file descriptor of core file
never@3156	137	int exec_fd; // file descriptor of exec file
never@3156	138	int interp_fd; // file descriptor of interpreter (ld-elf.so.1)
never@3156	139	// part of the class sharing workaround
never@3156	140	int classes_jsa_fd; // file descriptor of class share archive
never@3156	141	uintptr_t dynamic_addr; // address of dynamic section of a.out
never@3156	142	uintptr_t ld_base_addr; // base address of ld.so
never@3156	143	size_t num_maps; // number of maps.
never@3156	144	map_info* maps; // maps in a linked list
never@3156	145	// part of the class sharing workaround
never@3156	146	map_info* class_share_maps;// class share maps in a linked list
never@3156	147	map_info** map_array; // sorted (by vaddr) array of map_info pointers
minqi@4750	148	char exec_path[4096]; // file name java
never@3156	149	};
never@3156	150
never@3156	151	struct ps_prochandle {
never@3156	152	ps_prochandle_ops* ops; // vtable ptr
never@3156	153	pid_t pid;
never@3156	154	int num_libs;
never@3156	155	lib_info* libs; // head of lib list
never@3156	156	lib_info* lib_tail; // tail of lib list - to append at the end
never@3156	157	int num_threads;
minqi@4750	158	sa_thread_info* threads; // head of thread list
never@3156	159	struct core_data* core; // data only used for core dumps, NULL for process
never@3156	160	};
never@3156	161
never@3156	162	int pathmap_open(const char* name);
never@3156	163	void print_debug(const char* format,...);
rbackman@4599	164	void print_error(const char* format,...);
never@3156	165	bool is_debug();
never@3156	166
never@3156	167	typedef bool (*thread_info_callback)(struct ps_prochandle* ph, pthread_t pid, lwpid_t lwpid);
never@3156	168
never@3156	169	// reads thread info using libthread_db and calls above callback for each thread
never@3156	170	bool read_thread_info(struct ps_prochandle* ph, thread_info_callback cb);
never@3156	171
never@3156	172	// adds a new shared object to lib list, returns NULL on failure
never@3156	173	lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base);
never@3156	174
never@3156	175	// adds a new shared object to lib list, supply open lib file descriptor as well
never@3156	176	lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd,
never@3156	177	uintptr_t base);
never@3156	178
minqi@4750	179	sa_thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
minqi@4750	180	// a test for ELF signature without using libelf
never@3156	181
minqi@4750	182	#ifdef __APPLE__
minqi@4750	183	// a test for Mach-O signature
minqi@4750	184	bool is_macho_file(int fd);
minqi@4750	185	// skip fat head to get image start offset of cpu_type_t
minqi@4750	186	// return false if any error happens, else value in offset.
minqi@4750	187	bool get_arch_off(int fd, cpu_type_t cputype, off_t *offset);
minqi@4750	188	#else
never@3156	189	bool is_elf_file(int fd);
minqi@4750	190	#endif // __APPLE__
never@3156	191
minqi@4750	192	lwpid_t get_lwp_id(struct ps_prochandle* ph, int index);
minqi@4750	193	bool set_lwp_id(struct ps_prochandle* ph, int index, lwpid_t lwpid);
minqi@4750	194	bool get_nth_lwp_regs(struct ps_prochandle* ph, int index, struct reg* regs);
minqi@4750	195
minqi@4750	196	// ps_pglobal_lookup() looks up the symbol sym_name in the symbol table
minqi@4750	197	// of the load object object_name in the target process identified by ph.
minqi@4750	198	// It returns the symbol's value as an address in the target process in
minqi@4750	199	// *sym_addr.
minqi@4750	200
minqi@4750	201	ps_err_e ps_pglobal_lookup(struct ps_prochandle *ph, const char *object_name,
minqi@4750	202	const char *sym_name, psaddr_t *sym_addr);
minqi@4750	203
minqi@4750	204	// read "size" bytes info "buf" from address "addr"
minqi@4750	205	ps_err_e ps_pread(struct ps_prochandle *ph, psaddr_t addr,
minqi@4750	206	void *buf, size_t size);
minqi@4750	207
minqi@4750	208	// write "size" bytes of data to debuggee at address "addr"
minqi@4750	209	ps_err_e ps_pwrite(struct ps_prochandle *ph, psaddr_t addr,
minqi@4750	210	const void *buf, size_t size);
minqi@4750	211
minqi@4750	212	// fill in ptrace_lwpinfo for lid
minqi@4750	213	ps_err_e ps_linfo(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
minqi@4750	214
minqi@4750	215	// needed for when libthread_db is compiled with TD_DEBUG defined
minqi@4750	216	void ps_plog (const char *format, ...);
minqi@4750	217
minqi@4750	218	// untility, tells the position in file
minqi@4750	219	off_t ltell(int fd);
never@3156	220	#endif //_LIBPROC_IMPL_H_