mirror of
https://github.com/openjdk/jdk.git
synced 2025-09-15 16:44:36 +02:00
be1b5fc17e
Macosx uses Mach-O file format for binary files, not ELF format. Currently SA works on core files on other platforms, t his change enables SA work on core file generated on Darwin. Reviewed-by: sla, sspitsyn
220 lines
7.8 KiB
C
220 lines
7.8 KiB
C
/*
|
|
* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*
|
|
*/
|
|
|
|
#ifndef _LIBPROC_IMPL_H_
|
|
#define _LIBPROC_IMPL_H_
|
|
|
|
#include <unistd.h>
|
|
#include <limits.h>
|
|
#include "libproc.h"
|
|
#include "symtab.h"
|
|
|
|
#ifdef __APPLE__
|
|
#include <inttypes.h> // for PRIx64, 32, ...
|
|
#include <pthread.h>
|
|
#include <mach-o/loader.h>
|
|
#include <mach-o/nlist.h>
|
|
#include <mach-o/fat.h>
|
|
|
|
#ifndef register_t
|
|
#define register_t uint64_t
|
|
#endif
|
|
|
|
/*** registers copied from bsd/amd64 */
|
|
typedef struct reg {
|
|
register_t r_r15;
|
|
register_t r_r14;
|
|
register_t r_r13;
|
|
register_t r_r12;
|
|
register_t r_r11;
|
|
register_t r_r10;
|
|
register_t r_r9;
|
|
register_t r_r8;
|
|
register_t r_rdi;
|
|
register_t r_rsi;
|
|
register_t r_rbp;
|
|
register_t r_rbx;
|
|
register_t r_rdx;
|
|
register_t r_rcx;
|
|
register_t r_rax;
|
|
uint32_t r_trapno; // not used
|
|
uint16_t r_fs;
|
|
uint16_t r_gs;
|
|
uint32_t r_err; // not used
|
|
uint16_t r_es; // not used
|
|
uint16_t r_ds; // not used
|
|
register_t r_rip;
|
|
register_t r_cs;
|
|
register_t r_rflags;
|
|
register_t r_rsp;
|
|
register_t r_ss; // not used
|
|
} reg;
|
|
|
|
// convenient defs
|
|
typedef struct mach_header_64 mach_header_64;
|
|
typedef struct load_command load_command;
|
|
typedef struct segment_command_64 segment_command_64;
|
|
typedef struct thread_command thread_command;
|
|
typedef struct dylib_command dylib_command;
|
|
typedef struct symtab_command symtab_command;
|
|
typedef struct nlist_64 nlist_64;
|
|
#else
|
|
#include <thread_db.h>
|
|
#include "salibelf.h"
|
|
#endif // __APPLE__
|
|
|
|
// data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h
|
|
|
|
#define BUF_SIZE (PATH_MAX + NAME_MAX + 1)
|
|
|
|
// list of shared objects
|
|
typedef struct lib_info {
|
|
char name[BUF_SIZE];
|
|
uintptr_t base;
|
|
struct symtab* symtab;
|
|
int fd; // file descriptor for lib
|
|
struct lib_info* next;
|
|
} lib_info;
|
|
|
|
// list of threads
|
|
typedef struct sa_thread_info {
|
|
lwpid_t lwp_id; // same as pthread_t
|
|
pthread_t pthread_id; //
|
|
struct reg regs; // not for process, core uses for caching regset
|
|
struct sa_thread_info* next;
|
|
} sa_thread_info;
|
|
|
|
// list of virtual memory maps
|
|
typedef struct map_info {
|
|
int fd; // file descriptor
|
|
off_t offset; // file offset of this mapping
|
|
uintptr_t vaddr; // starting virtual address
|
|
size_t memsz; // size of the mapping
|
|
struct map_info* next;
|
|
} map_info;
|
|
|
|
// vtable for ps_prochandle
|
|
typedef struct ps_prochandle_ops {
|
|
// "derived class" clean-up
|
|
void (*release)(struct ps_prochandle* ph);
|
|
// read from debuggee
|
|
bool (*p_pread)(struct ps_prochandle *ph,
|
|
uintptr_t addr, char *buf, size_t size);
|
|
// write into debuggee
|
|
bool (*p_pwrite)(struct ps_prochandle *ph,
|
|
uintptr_t addr, const char *buf , size_t size);
|
|
// get integer regset of a thread
|
|
bool (*get_lwp_regs)(struct ps_prochandle* ph, lwpid_t lwp_id, struct reg* regs);
|
|
// get info on thread
|
|
bool (*get_lwp_info)(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
|
|
} ps_prochandle_ops;
|
|
|
|
// the ps_prochandle
|
|
|
|
struct core_data {
|
|
int core_fd; // file descriptor of core file
|
|
int exec_fd; // file descriptor of exec file
|
|
int interp_fd; // file descriptor of interpreter (ld-elf.so.1)
|
|
// part of the class sharing workaround
|
|
int classes_jsa_fd; // file descriptor of class share archive
|
|
uintptr_t dynamic_addr; // address of dynamic section of a.out
|
|
uintptr_t ld_base_addr; // base address of ld.so
|
|
size_t num_maps; // number of maps.
|
|
map_info* maps; // maps in a linked list
|
|
// part of the class sharing workaround
|
|
map_info* class_share_maps;// class share maps in a linked list
|
|
map_info** map_array; // sorted (by vaddr) array of map_info pointers
|
|
char exec_path[4096]; // file name java
|
|
};
|
|
|
|
struct ps_prochandle {
|
|
ps_prochandle_ops* ops; // vtable ptr
|
|
pid_t pid;
|
|
int num_libs;
|
|
lib_info* libs; // head of lib list
|
|
lib_info* lib_tail; // tail of lib list - to append at the end
|
|
int num_threads;
|
|
sa_thread_info* threads; // head of thread list
|
|
struct core_data* core; // data only used for core dumps, NULL for process
|
|
};
|
|
|
|
int pathmap_open(const char* name);
|
|
void print_debug(const char* format,...);
|
|
void print_error(const char* format,...);
|
|
bool is_debug();
|
|
|
|
typedef bool (*thread_info_callback)(struct ps_prochandle* ph, pthread_t pid, lwpid_t lwpid);
|
|
|
|
// reads thread info using libthread_db and calls above callback for each thread
|
|
bool read_thread_info(struct ps_prochandle* ph, thread_info_callback cb);
|
|
|
|
// adds a new shared object to lib list, returns NULL on failure
|
|
lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base);
|
|
|
|
// adds a new shared object to lib list, supply open lib file descriptor as well
|
|
lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd,
|
|
uintptr_t base);
|
|
|
|
sa_thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
|
|
// a test for ELF signature without using libelf
|
|
|
|
#ifdef __APPLE__
|
|
// a test for Mach-O signature
|
|
bool is_macho_file(int fd);
|
|
// skip fat head to get image start offset of cpu_type_t
|
|
// return false if any error happens, else value in offset.
|
|
bool get_arch_off(int fd, cpu_type_t cputype, off_t *offset);
|
|
#else
|
|
bool is_elf_file(int fd);
|
|
#endif // __APPLE__
|
|
|
|
lwpid_t get_lwp_id(struct ps_prochandle* ph, int index);
|
|
bool set_lwp_id(struct ps_prochandle* ph, int index, lwpid_t lwpid);
|
|
bool get_nth_lwp_regs(struct ps_prochandle* ph, int index, struct reg* regs);
|
|
|
|
// ps_pglobal_lookup() looks up the symbol sym_name in the symbol table
|
|
// of the load object object_name in the target process identified by ph.
|
|
// It returns the symbol's value as an address in the target process in
|
|
// *sym_addr.
|
|
|
|
ps_err_e ps_pglobal_lookup(struct ps_prochandle *ph, const char *object_name,
|
|
const char *sym_name, psaddr_t *sym_addr);
|
|
|
|
// read "size" bytes info "buf" from address "addr"
|
|
ps_err_e ps_pread(struct ps_prochandle *ph, psaddr_t addr,
|
|
void *buf, size_t size);
|
|
|
|
// write "size" bytes of data to debuggee at address "addr"
|
|
ps_err_e ps_pwrite(struct ps_prochandle *ph, psaddr_t addr,
|
|
const void *buf, size_t size);
|
|
|
|
// fill in ptrace_lwpinfo for lid
|
|
ps_err_e ps_linfo(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
|
|
|
|
// needed for when libthread_db is compiled with TD_DEBUG defined
|
|
void ps_plog (const char *format, ...);
|
|
|
|
// untility, tells the position in file
|
|
off_t ltell(int fd);
|
|
#endif //_LIBPROC_IMPL_H_
|