C++ (Cpp) mdb_module_load Examples

Example #1

File: mdb_create.c Project: andreiw/polaris

void
mdb_create_loadable_disasms(void)
{
	DIR *dir;
	struct dirent *dp;
	char buf[PATH_MAX], *p, *q;
	size_t len;

#ifdef _LP64
	len = mdb_snprintf(buf, sizeof (buf), "%s/usr/lib/mdb/disasm/%s",
	    mdb.m_root, mdb_conf_isa());
#else
	len = mdb_snprintf(buf, sizeof (buf), "%s/usr/lib/mdb/disasm",
	    mdb.m_root);
#endif
	p = &buf[len];

	if ((dir = opendir(buf)) == NULL)
		return;

	while ((dp = readdir(dir)) != NULL) {
		if (dp->d_name[0] == '.')
			continue; /* skip "." and ".." */
		if ((q = strrchr(dp->d_name, '.')) == NULL ||
		    strcmp(q, ".so") != 0)
			continue;

		(void) mdb_snprintf(p, sizeof (buf) - len, "/%s", dp->d_name);

		(void) mdb_module_load(buf, MDB_MOD_SILENT);
	}

	(void) closedir(dir);
}

Example #2

File: mdb_main.c Project: kele/illumos-fsd

static int
identify_xvm_file(const char *file, int *longmode)
{
	int (*identify)(const char *, int *);

	if (mdb_module_load("mdb_kb", MDB_MOD_GLOBAL | MDB_MOD_SILENT) != 0)
		return (0);

	identify = (int (*)())dlsym(RTLD_NEXT, "xkb_identify");

	if (identify == NULL)
		return (0);

	return (identify(file, longmode));
}

Example #3

File: mdb_kvm.c Project: andreiw/polaris

void
kt_activate(mdb_tgt_t *t)
{
	static const mdb_nv_disc_t reg_disc = { NULL, reg_disc_get };
	kt_data_t *kt = t->t_data;
	void *sym;

	int oflag;

	mdb_prop_postmortem = (kt->k_dumphdr != NULL);
	mdb_prop_kernel = TRUE;
	mdb_prop_datamodel = MDB_TGT_MODEL_NATIVE;

	if (kt->k_activated == FALSE) {
		struct utsname u1, u2;
		/*
		 * If we're examining a crash dump, root is /, and uname(2)
		 * does not match the utsname in the dump, issue a warning.
		 * Note that we are assuming that the modules and macros in
		 * /usr/lib are compiled against the kernel from uname -rv.
		 */
		if (mdb_prop_postmortem && strcmp(mdb.m_root, "/") == 0 &&
		    uname(&u1) >= 0 && kt_uname(t, &u2) >= 0 &&
		    (strcmp(u1.release, u2.release) ||
		    strcmp(u1.version, u2.version))) {
			mdb_warn("warning: dump is from %s %s %s; dcmds and "
			    "macros may not match kernel implementation\n",
			    u2.sysname, u2.release, u2.version);
		}

		if (mdb_module_load(KT_MODULE, MDB_MOD_GLOBAL) < 0) {
			warn("failed to load kernel support module -- "
			    "some modules may not load\n");
		}

		if (mdb_prop_postmortem) {
			sym = dlsym(RTLD_NEXT, "mdb_dump_print_content");
			if (sym != NULL)
				kt->k_dump_print_content = (void (*)())sym;

			sym = dlsym(RTLD_NEXT, "mdb_dump_find_curproc");
			if (sym != NULL)
				kt->k_dump_find_curproc = (int (*)())sym;

			kt->k_dumpcontent = kt_find_dump_contents(kt);
		}

		if (t->t_flags & MDB_TGT_F_PRELOAD) {
			oflag = mdb_iob_getflags(mdb.m_out) & MDB_IOB_PGENABLE;

			mdb_iob_clrflags(mdb.m_out, oflag);
			mdb_iob_puts(mdb.m_out, "Preloading module symbols: [");
			mdb_iob_flush(mdb.m_out);
		}

		if (!(t->t_flags & MDB_TGT_F_NOLOAD))
			kt_load_modules(kt, t);

		if (t->t_flags & MDB_TGT_F_PRELOAD) {
			mdb_iob_puts(mdb.m_out, " ]\n");
			mdb_iob_setflags(mdb.m_out, oflag);
		}

		kt->k_activated = TRUE;
	}

	(void) mdb_tgt_register_dcmds(t, &kt_dcmds[0], MDB_MOD_FORCE);

	/* Export some of our registers as named variables */
	mdb_tgt_register_regvars(t, kt->k_rds, &reg_disc, MDB_NV_RDONLY);

	mdb_tgt_elf_export(kt->k_file);
}