static void
get_full_path(const char *app, char *buf, size_t buflen/*# elements*/)
{
drfront_status_t sc = drfront_get_app_full_path(app, buf, buflen);
if (sc != DRFRONT_SUCCESS)
FATAL_ERROR("drfront_get_app_full_path failed on %s: %d\n", app, sc);
}
static void
get_full_path(const char *app, char *buf, size_t buflen/*# elements*/)
{
drfront_status_t sc = drfront_get_app_full_path(app, buf, buflen);
if (sc != DRFRONT_SUCCESS)
warn("failed (status=%d) to find application %s", sc, app);
}
static bool
check_architecture(const char *dll, char **argv)
{
bool is_64bit, also_32bit;
if (drfront_is_64bit_app(dll, &is_64bit, &also_32bit) != DRFRONT_SUCCESS) {
printf("ERROR: unable to get the architecture infomation of"
" the target module %s\n", dll);
return false;
}
if (IF_X64_ELSE(!is_64bit, is_64bit && !also_32bit)) {
char *orig_argv0 = argv[0];
char root[MAXIMUM_PATH];
char buf[MAXIMUM_PATH];
char *basename;
int errcode;
void *inject_data;
bool is_readable;
if (drfront_get_app_full_path(argv[0], root, BUFFER_SIZE_ELEMENTS(root)) !=
DRFRONT_SUCCESS) {
printf("ERROR: unable to get base dir of %s\n", argv[0]);
return false;
}
basename = root + strlen(root) - 1;
while (*basename != DIRSEP && *basename != ALT_DIRSEP && basename > root)
basename--;
if (basename <= root) {
printf("ERROR: unable to get base dir of %s\n", argv[0]);
return false;
}
*basename = '\0';
basename++;
_snprintf(buf, BUFFER_SIZE_ELEMENTS(buf) ,
"%s%c..%c%s%c%s", root, DIRSEP, DIRSEP,
IF_X64_ELSE("bin", "bin64"), DIRSEP, basename);
NULL_TERMINATE_BUFFER(buf);
if (drfront_access(buf, DRFRONT_READ, &is_readable) != DRFRONT_SUCCESS ||
!is_readable) {
printf("ERROR: unable to find frontend %s to match target file bitwidth: "
"is this an incomplete installation?\n", buf);
}
argv[0] = buf;
#ifdef UNIX
errcode = dr_inject_prepare_to_exec(buf, (const char **)argv, &inject_data);
if (errcode == 0 || errcode == WARN_IMAGE_MACHINE_TYPE_MISMATCH_EXE)
dr_inject_process_run(inject_data); /* shouldn't return */
printf("ERROR (%d): unable to launch frontend to match target file bitwidth\n",
errcode);
argv[0] = orig_argv0;
return false;
#else
errcode = dr_inject_process_create(buf, argv, &inject_data);
if (errcode == 0 || errcode == WARN_IMAGE_MACHINE_TYPE_MISMATCH_EXE) {
dr_inject_process_run(inject_data);
/* Wait for the child so user's shell prompt doesn't come back early */
errcode = WaitForSingleObject(dr_inject_get_process_handle(inject_data),
INFINITE);
if (errcode != WAIT_OBJECT_0)
printf("WARNING: failed to wait for cross-arch frontend\n");
dr_inject_process_exit(inject_data, false);
argv[0] = orig_argv0;
return false;
} else {
printf("ERROR (%d): unable to launch frontend to match target file bitwidth\n",
errcode);
argv[0] = orig_argv0;
return false;
}
#endif
}
return true;
}