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#ifndef _HCK_LTRACE_H
#define _HCK_LTRACE_H
#include <sys/types.h>
#include <stdio.h>
#include "defs.h"
/* BREAKPOINT_LENGTH is defined in "sysdep.h" */
#include "sysdep.h"
extern char * command;
struct breakpoint {
void * addr;
unsigned char orig_value[BREAKPOINT_LENGTH];
int enabled;
};
enum param_type {
LT_PT_UNKNOWN=-1,
LT_PT_VOID,
LT_PT_INT,
LT_PT_UINT,
LT_PT_OCTAL,
LT_PT_CHAR,
LT_PT_ADDR,
LT_PT_FILE,
LT_PT_FORMAT, /* printf-like format */
LT_PT_STRING,
LT_PT_STRING0, /* stringN: string up to (arg N) bytes */
LT_PT_STRING1,
LT_PT_STRING2,
LT_PT_STRING3
};
enum tof {
LT_TOF_NONE,
LT_TOF_FUNCTION, /* A real library function */
LT_TOF_SYSCALL /* A syscall */
};
struct function {
const char * name;
enum param_type return_type;
int num_params;
enum param_type param_types[MAX_ARGS];
int params_right;
struct function * next;
};
extern struct function * list_of_functions;
struct library_symbol {
char * name;
struct breakpoint brk;
struct library_symbol * next;
};
struct process {
char * filename;
pid_t pid;
int breakpoints_enabled; /* -1:not enabled yet, 0:disabled, 1:enabled */
int current_syscall; /* -1 for none */
struct library_symbol * current_symbol; /* NULL for none */
struct breakpoint return_value;
struct library_symbol * list_of_symbols;
/* Arch-dependent: */
void * instruction_pointer;
void * stack_pointer; /* To get return addr, args... */
void * return_addr;
struct breakpoint * breakpoint_being_enabled;
/* output: */
enum tof type_being_displayed;
struct process * next;
};
struct event {
struct process *proc;
enum {
LT_EV_UNKNOWN,
LT_EV_NONE,
LT_EV_SIGNAL,
LT_EV_EXIT,
LT_EV_EXIT_SIGNAL,
LT_EV_SYSCALL,
LT_EV_SYSRET,
LT_EV_BREAKPOINT
} thing;
union {
int ret_val; /* _EV_EXIT */
int signum; /* _EV_SIGNAL, _EV_EXIT_SIGNAL */
int sysnum; /* _EV_SYSCALL, _EV_SYSRET */
void * brk_addr; /* _EV_BREAKPOINT */
} e_un;
};
extern struct process * list_of_processes;
extern void * instruction_pointer;
struct event * wait_for_something(void);
void process_event(struct event * event);
void execute_program(struct process *, char **);
int display_arg(enum tof type, struct process * proc, int arg_num, enum param_type rt);
void enable_all_breakpoints(struct process * proc);
void disable_all_breakpoints(struct process * proc);
/* Arch-dependent stuff: */
extern char * pid2name(pid_t pid);
extern void trace_me(void);
extern void trace_pid(pid_t pid);
extern void * get_instruction_pointer(int pid);
extern void * get_stack_pointer(int pid);
extern void * get_return_addr(int pid, void * stack_pointer);
extern void insert_breakpoint(int pid, struct breakpoint * sbp);
extern void delete_breakpoint(int pid, struct breakpoint * sbp);
extern int child_p(int sysnum);
extern int syscall_p(struct process * proc, int status);
extern int sysret_p(struct process * proc, int status);
extern void continue_process(pid_t pid);
extern void continue_after_signal(pid_t pid, int signum);
extern void continue_after_breakpoint(struct process * proc, struct breakpoint * sbp, int delete_it);
extern void continue_enabling_breakpoint(pid_t pid, struct breakpoint * sbp);
extern long gimme_arg(enum tof type, struct process * proc, int arg_num);
extern int umovestr(struct process * proc, void * addr, int len, void * laddr);
#if 0 /* not yet */
extern int umoven(struct process * proc, void * addr, int len, void * laddr);
#endif
#endif
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