diff options
Diffstat (limited to 'common.h')
| -rw-r--r-- | common.h | 262 |
1 files changed, 53 insertions, 209 deletions
@@ -1,3 +1,30 @@ +/* + * This file is part of ltrace. + * Copyright (C) 2011,2012 Petr Machata, Red Hat Inc. + * Copyright (C) 2010 Joe Damato + * Copyright (C) 2009 Juan Cespedes + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef COMMON_H +#define COMMON_H + +#include <config.h> + #include <sys/types.h> #include <sys/time.h> #include <stdio.h> @@ -7,10 +34,15 @@ #include "dict.h" #include "sysdep.h" #include "debug.h" -#include "elf.h" +#include "ltrace-elf.h" #include "read_config_file.h" +#include "proc.h" +#include "forward.h" -#if defined HAVE_LIBIBERTY || defined HAVE_LIBSUPC__ +#if defined HAVE_LIBSUPC__ || defined HAVE_LIBSTDC__ +# define USE_CXA_DEMANGLE +#endif +#if defined HAVE_LIBIBERTY || defined USE_CXA_DEMANGLE # define USE_DEMANGLE #endif @@ -18,177 +50,19 @@ extern char * command; extern int exiting; /* =1 if we have to exit ASAP */ -typedef struct Breakpoint Breakpoint; -struct Breakpoint { - void * addr; - unsigned char orig_value[BREAKPOINT_LENGTH]; - int enabled; - struct library_symbol * libsym; -#ifdef __arm__ - int thumb_mode; -#endif -}; - -enum arg_type { - ARGTYPE_UNKNOWN = -1, - ARGTYPE_VOID, - ARGTYPE_INT, - ARGTYPE_UINT, - ARGTYPE_LONG, - ARGTYPE_ULONG, - ARGTYPE_OCTAL, - ARGTYPE_CHAR, - ARGTYPE_SHORT, - ARGTYPE_USHORT, - ARGTYPE_FLOAT, /* float value, may require index */ - ARGTYPE_DOUBLE, /* double value, may require index */ - ARGTYPE_ADDR, - ARGTYPE_FILE, - ARGTYPE_FORMAT, /* printf-like format */ - ARGTYPE_STRING, /* NUL-terminated string */ - ARGTYPE_STRING_N, /* String of known maxlen */ - ARGTYPE_ARRAY, /* Series of values in memory */ - ARGTYPE_ENUM, /* Enumeration */ - ARGTYPE_STRUCT, /* Structure of values */ - ARGTYPE_POINTER, /* Pointer to some other type */ - ARGTYPE_COUNT /* number of ARGTYPE_* values */ -}; - -typedef struct arg_type_info_t { - enum arg_type type; - union { - /* ARGTYPE_ENUM */ - struct { - size_t entries; - char ** keys; - int * values; - } enum_info; - - /* ARGTYPE_ARRAY */ - struct { - struct arg_type_info_t * elt_type; - size_t elt_size; - int len_spec; - } array_info; - - /* ARGTYPE_STRING_N */ - struct { - int size_spec; - } string_n_info; - - /* ARGTYPE_STRUCT */ - struct { - struct arg_type_info_t ** fields; /* NULL-terminated */ - size_t * offset; - size_t size; - } struct_info; - - /* ARGTYPE_POINTER */ - struct { - struct arg_type_info_t * info; - } ptr_info; - - /* ARGTYPE_FLOAT */ - struct { - size_t float_index; - } float_info; - - /* ARGTYPE_DOUBLE */ - struct { - size_t float_index; - } double_info; - } u; -} arg_type_info; - -enum tof { - LT_TOF_NONE = 0, - LT_TOF_FUNCTION, /* A real library function */ - LT_TOF_FUNCTIONR, /* Return from a real library function */ - LT_TOF_SYSCALL, /* A syscall */ - LT_TOF_SYSCALLR, /* Return from a syscall */ - LT_TOF_STRUCT /* Not a function; read args from struct */ -}; - typedef struct Function Function; struct Function { const char * name; - arg_type_info * return_info; - int num_params; - arg_type_info * arg_info[MAX_ARGS]; - int params_right; + struct param *params; + struct arg_type_info *return_info; + int own_return_info; + size_t num_params; Function * next; }; -enum toplt { - LS_TOPLT_NONE = 0, /* PLT not used for this symbol. */ - LS_TOPLT_EXEC, /* PLT for this symbol is executable. */ - LS_TOPLT_POINT /* PLT for this symbol is a non-executable. */ -}; - extern Function * list_of_functions; extern char *PLTs_initialized_by_here; -struct library_symbol { - char * name; - void * enter_addr; - char needs_init; - enum toplt plt_type; - char is_weak; - struct library_symbol * next; -}; - -struct callstack_element { - union { - int syscall; - struct library_symbol * libfunc; - } c_un; - int is_syscall; - void * return_addr; - struct timeval time_spent; -}; - -#define MAX_CALLDEPTH 64 - -typedef enum Process_State Process_State; -enum Process_State { - STATE_ATTACHED = 0, - STATE_BEING_CREATED, - STATE_IGNORED /* ignore this process (it's a fork and no -f was used) */ -}; - -struct Process { - Process_State state; - Process * parent; /* needed by STATE_BEING_CREATED */ - char * filename; - pid_t pid; - Dict * breakpoints; - int breakpoints_enabled; /* -1:not enabled yet, 0:disabled, 1:enabled */ - int mask_32bit; /* 1 if 64-bit ltrace is tracing 32-bit process */ - unsigned int personality; - int tracesysgood; /* signal indicating a PTRACE_SYSCALL trap */ - - int callstack_depth; - struct callstack_element callstack[MAX_CALLDEPTH]; - struct library_symbol * list_of_symbols; - - /* Arch-dependent: */ - void * instruction_pointer; - void * stack_pointer; /* To get return addr, args... */ - void * return_addr; - Breakpoint * breakpoint_being_enabled; - void * arch_ptr; - short e_machine; - short need_to_reinitialize_breakpoints; -#ifdef __arm__ - int thumb_mode; /* ARM execution mode: 0: ARM, 1: Thumb */ -#endif - - /* output: */ - enum tof type_being_displayed; - - Process * next; -}; - struct opt_c_struct { int count; struct timeval tv; @@ -202,52 +76,22 @@ struct opt_c_struct { extern Dict * dict_opt_c; -extern Process * list_of_processes; - +/* Events */ extern Event * next_event(void); -extern Process * pid2proc(pid_t pid); extern void handle_event(Event * event); -extern void execute_program(Process *, char **); -extern int display_arg(enum tof type, Process * proc, int arg_num, arg_type_info * info); -extern Breakpoint * address2bpstruct(Process * proc, void * addr); -extern void breakpoints_init(Process * proc); -extern void insert_breakpoint(Process * proc, void * addr, struct library_symbol * libsym); -extern void delete_breakpoint(Process * proc, void * addr); -extern void enable_all_breakpoints(Process * proc); -extern void disable_all_breakpoints(Process * proc); -extern void reinitialize_breakpoints(Process *); - -extern Process * open_program(char * filename, pid_t pid); -extern void open_pid(pid_t pid); + +extern pid_t execute_program(const char * command, char ** argv); + extern void show_summary(void); -extern arg_type_info * lookup_prototype(enum arg_type at); - -/* Arch-dependent stuff: */ -extern char * pid2name(pid_t pid); -extern void trace_set_options(Process * proc, pid_t pid); -extern void trace_me(void); -extern int trace_pid(pid_t pid); -extern void untrace_pid(pid_t pid); -extern void get_arch_dep(Process * proc); -extern void * get_instruction_pointer(Process * proc); -extern void set_instruction_pointer(Process * proc, void * addr); -extern void * get_stack_pointer(Process * proc); -extern void * get_return_addr(Process * proc, void * stack_pointer); -extern void set_return_addr(Process * proc, void * addr); -extern void enable_breakpoint(pid_t pid, Breakpoint * sbp); -extern void disable_breakpoint(pid_t pid, const Breakpoint * sbp); -extern int syscall_p(Process * proc, int status, int * sysnum); -extern void continue_process(pid_t pid); -extern void continue_after_signal(pid_t pid, int signum); -extern void continue_after_breakpoint(Process * proc, Breakpoint * sbp); -extern void continue_enabling_breakpoint(pid_t pid, Breakpoint * sbp); -extern long gimme_arg(enum tof type, Process * proc, int arg_num, arg_type_info * info); -extern void save_register_args(enum tof type, Process * proc); -extern int umovestr(Process * proc, void * addr, int len, void * laddr); -extern int umovelong (Process * proc, void * addr, long * result, arg_type_info * info); -extern int ffcheck(void * maddr); -extern void * sym2addr(Process *, struct library_symbol *); - -#if 0 /* not yet */ -extern int umoven(Process * proc, void * addr, int len, void * laddr); + +struct breakpoint; +struct library_symbol; + +/* Format VALUE into STREAM. The dictionary of all arguments is given + * for purposes of evaluating array lengths and other dynamic + * expressions. Returns number of characters outputted, -1 in case of + * failure. */ +int format_argument(FILE *stream, struct value *value, + struct value_dict *arguments); + #endif |