DWARF stuff...
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#include "common.h"
#include "util.c"
#include "dwarf.c"
#include "eh_frame.c"
#include "command.c"
int
main(int argc, char *argv[])
{
if (argc != 2) {
printf("Usage: %s executable\n", argv[0]);
return(1);
}
struct mi_process process = process_create(argv[1]);
printf("pid of child = %d\n", process.pid);
size_t max_command_length = 1023;
int command_length = 0;
char *command = malloc(max_command_length + 1);
char *last_command = malloc(max_command_length + 1);
parse_debug_info(process.elf, &process.debug);
parse_eh_frame(process);
process.base_address = 0x555555554000UL; // get_executable_base_address(file, proc.pid);
process.main_address = get_address_of_subroutine(process, "main");
printf("Base address: %#lx\n", process.base_address);
printf("Main address: %#lx\n", process.main_address);
printf("> ");
fflush(stdout);
parse_debug_line(process.elf, &process.debug);
while ((command_length = getline(&command, &max_command_length, stdin))) {
if (command_length == 1) {
memset(command, 0, max_command_length);
memcpy(command, last_command, command_length);
}
int wait = 0;
if (0 == strncmp(command, "exit\n", command_length) || 0 == strncmp(command, "q\n", command_length)) {
break;
} else if (0 == strncmp(command, "regs\n", command_length)) {
command_regs(process);
} else if (0 == strncmp(command, "step\n", command_length)) {
command_step(process);
} else if (0 == strncmp(command, "start\n", command_length)) {
command_start(process);
} else if (0 == strncmp(command, "print ", 6)) {
command_print(process, command + 6, command_length - 7);
} else if (0 == strncmp(command, "next\n", command_length)) {
command_next(process);
} else if (0 == strncmp(command, "line\n", command_length)) {
command_list(process);
} else if (0 == strncmp(command, "bt\n", command_length)) {
command_backtrace(process);
} else if (0 == strncmp(command, "cont\n", command_length)) {
command_cont(process);
wait = 1;
} else if (0 == strncmp(command, "kill\n", command_length)) {
command_kill(process);
wait = 1;
} else {
printf("Unknown command: %.*s", command_length, command);
}
if (wait) {
int wstatus;
int cpid = waitpid(process.pid, &wstatus, 0);
if (cpid != 0) {
if (WIFEXITED(wstatus)) {
int status = WEXITSTATUS(wstatus);
printf("Child terminated normally with status %d\n", status);
break;
}
if (WIFSIGNALED(wstatus)) {
int signal = WTERMSIG(wstatus);
printf("Child terminated by signal %d (%s)\n", signal, strsignal(signal));
break;
}
if (WIFSTOPPED(wstatus)) {
int signal = WSTOPSIG(wstatus);
printf("Child stopped by signal %d (%s)\n", signal, strsignal(signal));
break;
}
if (WIFCONTINUED(wstatus)) {
printf("Child continued by SIGCONT\n");
}
}
}
memset(last_command, 0, max_command_length);
memcpy(last_command, command, command_length);
printf("> ");
}
return(0);
}