debugger.h


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#pragma once

#include <sys/user.h>
#include <unistd.h>

#include "list.h"

struct breakpoint {
    LINKEDLIST;

    unsigned long address;
    unsigned long text;
    int installed;
    int previously_installed;
    int hits;
    int user;

    unsigned long stack;
    pid_t tid;
    int enabled;
};

struct map {
    LINKEDLIST;
    unsigned long start;
    unsigned long end;
    void *data;
};

struct state {
    LINKEDLIST;
    struct user_regs_struct regs;
    struct list maps;
};

struct process {
    LINKEDLIST;
    pid_t id;
    int child;
    struct list breakpoints;
    struct list threads;
    char status[128];
};

struct thread {
    LINKEDLIST;
    struct process *proc;

    struct list states;
    struct state *state;
    int clearstates;

    pid_t id;
    int stopped;
    int signal;
    int doing;
    int donext;

    char status[128];
};

extern struct breakpoint*add_breakpoint(struct process*proc,unsigned long address);
extern struct breakpoint*get_breakpoint(struct process*proc,unsigned long address);

extern struct process *dbg_attach(pid_t pid, int child);
extern void dbg_detach(struct process *proc);
extern int dbg_free(struct thread *th);

extern void dbg_sync(struct process *proc);

extern int dbg_intr(struct thread *th);
extern int dbg_cont(struct thread *th);
extern int dbg_syscall(struct thread *th);
extern int dbg_stepin(struct thread *th);
extern int dbg_stepover(struct thread *th);
extern int dbg_stepback(struct thread *th);

extern void *deref(struct thread *th, unsigned long address, size_t size);