/*
* There is an ELF kernel and one or more ELF modules loaded.
* We wish to start executing the kernel image, so make such
* preparations as are required, and do so.
*/
static int
elf32_exec(struct preloaded_file *fp)
{
struct file_metadata *md;
Elf_Ehdr *ehdr;
vm_offset_t entry, bootinfop, modulep, kernend;
int boothowto, err, bootdev;
if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
return(EFTYPE);
ehdr = (Elf_Ehdr *)&(md->md_data);
err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
if (err != 0)
return(err);
entry = ehdr->e_entry & 0xffffff;
#ifdef DEBUG
printf("Start @ 0x%lx ...\n", entry);
#endif
dev_cleanup();
__exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
panic("exec returned");
}
thread_QThread::thread_QThread()
{
_thread = new QThread(xfmain.getXfalconWnd());
connect(_thread, SIGNAL(started()), this, SLOT(__exec()));
connect(_thread, SIGNAL(finished()), this, SLOT(deleteLater()));
this->moveToThread(_thread);
}
static int __create_table(sqlite3 *db)
{
int r;
r = __exec(db, CREATE_RUA_HISTORY_TABLE);
if (r == -1) {
LOGE("create table error");
return -1;
}
return 0;
}
void
Execution(FormatedInput* input, Environ* env) {
char *path = 0;
if (input->datas[0][0] == '.' ||
input->datas[0][0] == '/')
path = input->datas[0];
else
path = __binPath(env, input);
if (path == 0) {
printf("%s : no such command\n", input->datas[0]);
return ;
}
__exec(input, env, path);
}
int rua_clear_history(void)
{
int r;
char query[QUERY_MAXLEN];
if (_db == NULL) {
LOGE("rua is not inited.");
return -1;
}
LOGD("rua clear history is invoked");
snprintf(query, QUERY_MAXLEN, "delete from %s;", RUA_HISTORY);
r = __exec(_db, query);
return r;
}
int main(int argc, char **argv)
{
int pid;
argv[argc] = 0;
uint64_t before = sys_gettime();
if (argc > 1) {
pid = fork();
if (pid < 0) {
printf("Error: cannot fork process.\n");
} else if (pid == 0) {
__exec(NULL, argv + 1, NULL);
}
waitpid(pid, NULL);
}
uint64_t after = sys_gettime();
printf("\n ===== Summary ===== \n");
printf("real %ld ticks.\n", after - before);
printf("\n");
return 0;
}
int rua_delete_history_with_pkgname(char *pkg_name)
{
int r;
char query[QUERY_MAXLEN];
if (_db == NULL) {
LOGE("rua is not inited.");
return -1;
}
if (pkg_name == NULL) {
LOGE("pkg_name is null");
return -1;
}
LOGD("rua delete history with name(%s) is invoked", pkg_name);
snprintf(query, QUERY_MAXLEN, "delete from %s where pkg_name = '%s';",
RUA_HISTORY, pkg_name);
r = __exec(_db, query);
return r;
}
int rua_delete_history_with_apppath(char *app_path)
{
int r;
char query[QUERY_MAXLEN];
if (_db == NULL) {
LOGE("rua is not inited.");
return -1;
}
if (app_path == NULL) {
LOGE("app_path is null");
return -1;
}
LOGD("rua delete history with path(%s) is invoked", app_path);
snprintf(query, QUERY_MAXLEN, "delete from %s where app_path = '%s';",
RUA_HISTORY, app_path);
r = __exec(_db, query);
return r;
}
int rua_add_history(struct rua_rec *rec)
{
int r;
int cnt = 0;
char query[QUERY_MAXLEN];
sqlite3_stmt *stmt;
unsigned int timestamp;
timestamp = PERF_MEASURE_START("RUA");
LOGD("rua_add_history invoked");
if (_db == NULL) {
LOGE("rua is not inited.");
return -1;
}
if (rec == NULL) {
LOGE("rec is null");
return -1;
}
snprintf(query, QUERY_MAXLEN,
"select count(*) from %s where pkg_name = '%s';", RUA_HISTORY,
rec->pkg_name);
r = sqlite3_prepare(_db, query, sizeof(query), &stmt, NULL);
if (r != SQLITE_OK) {
LOGE("query prepare error(%d)", r);
return -1;
}
r = sqlite3_step(stmt);
if (r == SQLITE_ROW) {
cnt = sqlite3_column_int(stmt, 0);
}
sqlite3_finalize(stmt);
/****************************************************/
if (!flag) {
vconf_unset_recursive ("db/rua_data");
flag = 1;
}
if(strcmp(rec->pkg_name, "org.tizen.menu-screen") && strcmp(rec->pkg_name, "org.tizen.volume") && strcmp(rec->pkg_name, "org.tizen.lockscreen") && strcmp(rec->pkg_name, "org.tizen.pwlock")){
int total = 0;
int apps;
char key[255], *key2 = "db/rua_data/apps";
sprintf (key, "db/rua_data/%s", "tizen_total_cnt");
if (vconf_get_int (key, &total) < 0)
total = 0;
vconf_set_int (key, total + 1);
memset (key, 0, 255);
sprintf (key, "db/rua_data/%s", rec->pkg_name);
if (vconf_get_int (key, &total) < 0) {
total = 0;
if (vconf_get_int (key2, &apps) < 0)
apps = 0;
vconf_set_int (key2, apps + 1);
}
vconf_set_int (key, total + 1);
}
/****************************************************/
if (cnt == 0) {
/* insert */
snprintf(query, QUERY_MAXLEN,
"insert into %s ( pkg_name, app_path, arg, launch_time ) "
" values ( \"%s\", \"%s\", \"%s\", %d ) ",
RUA_HISTORY,
rec->pkg_name ? rec->pkg_name : "",
rec->app_path ? rec->app_path : "",
rec->arg ? rec->arg : "", (int)time(NULL));
}
else {
/* update */
snprintf(query, QUERY_MAXLEN,
"update %s set arg='%s', launch_time='%d' where pkg_name = '%s';",
RUA_HISTORY,
rec->arg ? rec->arg : "", (int)time(NULL), rec->pkg_name);
}
r = __exec(_db, query);
if (r == -1) {
LOGE("[RUA ADD HISTORY ERROR] %s\n", query);
return -1;
}
PERF_MEASURE_END("RUA", timestamp);
return r;
}
static void
load(void)
{
union {
struct exec ex;
Elf32_Ehdr eh;
} hdr;
Elf32_Phdr ep[2];
Elf32_Shdr es[2];
caddr_t p;
ino_t ino;
uint32_t addr, x;
int fmt, i, j;
if (!(ino = lookup(kname))) {
if (!ls)
printf("No %s\n", kname);
return;
}
if (xfsread(ino, &hdr, sizeof(hdr)))
return;
if (N_GETMAGIC(hdr.ex) == ZMAGIC)
fmt = 0;
else if (IS_ELF(hdr.eh))
fmt = 1;
else {
printf("Invalid %s\n", "format");
return;
}
if (fmt == 0) {
addr = hdr.ex.a_entry & 0xffffff;
p = PTOV(addr);
fs_off = PAGE_SIZE;
if (xfsread(ino, p, hdr.ex.a_text))
return;
p += roundup2(hdr.ex.a_text, PAGE_SIZE);
if (xfsread(ino, p, hdr.ex.a_data))
return;
p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE);
bootinfo.bi_symtab = VTOP(p);
memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms));
p += sizeof(hdr.ex.a_syms);
if (hdr.ex.a_syms) {
if (xfsread(ino, p, hdr.ex.a_syms))
return;
p += hdr.ex.a_syms;
if (xfsread(ino, p, sizeof(int)))
return;
x = *(uint32_t *)p;
p += sizeof(int);
x -= sizeof(int);
if (xfsread(ino, p, x))
return;
p += x;
}
} else {
fs_off = hdr.eh.e_phoff;
for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
if (xfsread(ino, ep + j, sizeof(ep[0])))
return;
if (ep[j].p_type == PT_LOAD)
j++;
}
for (i = 0; i < 2; i++) {
p = PTOV(ep[i].p_paddr & 0xffffff);
fs_off = ep[i].p_offset;
if (xfsread(ino, p, ep[i].p_filesz))
return;
}
p += roundup2(ep[1].p_memsz, PAGE_SIZE);
bootinfo.bi_symtab = VTOP(p);
if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) {
fs_off = hdr.eh.e_shoff + sizeof(es[0]) *
(hdr.eh.e_shstrndx + 1);
if (xfsread(ino, &es, sizeof(es)))
return;
for (i = 0; i < 2; i++) {
memcpy(p, &es[i].sh_size, sizeof(es[i].sh_size));
p += sizeof(es[i].sh_size);
fs_off = es[i].sh_offset;
if (xfsread(ino, p, es[i].sh_size))
return;
p += es[i].sh_size;
}
}
addr = hdr.eh.e_entry & 0xffffff;
}
bootinfo.bi_esymtab = VTOP(p);
bootinfo.bi_kernelname = VTOP(kname);
bootinfo.bi_bios_dev = dsk.drive;
__exec((caddr_t)addr, opts & RBX_MASK,
MAKEBOOTDEV(dev_maj[dsk.type], 0, dsk.slice, dsk.unit, dsk.part),
0, 0, 0, VTOP(&bootinfo));
}
int ph_exec(char *name)
{
return __exec(name);
}
int
runcmd(char *cmd) {
static char argv0[BUFSIZE];
const char *argv[EXEC_MAX_ARG_NUM + 1];
char *t;
int argc, token, ret, p[2];
again:
argc = 0;
while (1) {
switch (token = gettoken(&cmd, &t)) {
case 'w':
if (argc == EXEC_MAX_ARG_NUM) {
printf("sh error: too many arguments\n");
return -1;
}
argv[argc ++] = t;
break;
case '<':
if (gettoken(&cmd, &t) != 'w') {
printf("sh error: syntax error: < not followed by word\n");
return -1;
}
if ((ret = reopen(0, t, O_RDONLY)) != 0) {
return ret;
}
break;
case '>':
if (gettoken(&cmd, &t) != 'w') {
printf("sh error: syntax error: > not followed by word\n");
return -1;
}
if ((ret = reopen(1, t, O_RDWR | O_TRUNC | O_CREAT)) != 0) {
return ret;
}
break;
case '|':
if ((ret = pipe(p)) != 0) {
return ret;
}
if ((ret = fork()) == 0) {
close(0);
if ((ret = dup2(p[0], 0)) < 0) {
return ret;
}
close(p[0]), close(p[1]);
goto again;
}
else {
if (ret < 0) {
return ret;
}
close(1);
if ((ret = dup2(p[1], 1)) < 0) {
return ret;
}
close(p[0]), close(p[1]);
goto runit;
}
break;
case 0:
goto runit;
case ';':
if ((ret = fork()) == 0) {
goto runit;
}
else {
if (ret < 0) {
return ret;
}
waitpid(ret, NULL);
goto again;
}
break;
default:
printf("sh error: bad return %d from gettoken\n", token);
return -1;
}
}
runit:
if (argc == 0) {
return 0;
}
else if (strcmp(argv[0], "cd") == 0) {
if (argc != 2) {
return -1;
}
strcpy(shcwd, argv[1]);
return 0;
}
if ((ret = testfile(argv[0])) != 0) {
if (ret != -E_NOENT) {
return ret;
}
snprintf(argv0, sizeof(argv0), "/bin/%s", argv[0]);
argv[0] = argv0;
}
argv[argc] = NULL;
return __exec(NULL, argv, g_envp);
}
static int
multiboot_exec(struct preloaded_file *fp)
{
struct preloaded_file *mfp;
vm_offset_t entry;
struct file_metadata *md;
struct multiboot_info *mb_info = NULL;
struct multiboot_mod_list *mb_mod = NULL;
multiboot_memory_map_t *mmap;
struct bios_smap *smap;
struct devdesc *rootdev;
char *cmdline = NULL;
size_t len;
int error, num, i;
int rootfs = 0; /* flag for rootfs */
int xen = 0; /* flag for xen */
int kernel = 0; /* flag for kernel */
/* Set up base for mb_malloc. */
for (mfp = fp; mfp->f_next != NULL; mfp = mfp->f_next);
/* Start info block from new page. */
last_addr = roundup(mfp->f_addr + mfp->f_size, MULTIBOOT_MOD_ALIGN);
/* Allocate the multiboot struct and fill the basic details. */
mb_info = (struct multiboot_info *)PTOV(mb_malloc(sizeof (*mb_info)));
bzero(mb_info, sizeof(struct multiboot_info));
mb_info->flags = MULTIBOOT_INFO_MEMORY|MULTIBOOT_INFO_BOOT_LOADER_NAME;
mb_info->mem_lower = bios_basemem / 1024;
mb_info->mem_upper = bios_extmem / 1024;
mb_info->boot_loader_name = mb_malloc(strlen(bootprog_info) + 1);
i386_copyin(bootprog_info, mb_info->boot_loader_name,
strlen(bootprog_info) + 1);
i386_getdev((void **)(&rootdev), NULL, NULL);
if (rootdev == NULL) {
printf("can't determine root device\n");
error = EINVAL;
goto error;
}
/*
* Boot image command line. If args were not provided, we need to set
* args here, and that depends on image type...
* Fortunately we only have following options:
* 64 or 32 bit unix or xen. So we just check if f_name has unix.
*/
/* Do we boot xen? */
if (strstr(fp->f_name, "unix") == NULL)
xen = 1;
entry = fp->f_addr;
num = 0;
for (mfp = fp->f_next; mfp != NULL; mfp = mfp->f_next) {
num++;
if (mfp->f_type != NULL && strcmp(mfp->f_type, "rootfs") == 0)
rootfs++;
if (mfp->f_type != NULL && strcmp(mfp->f_type, "kernel") == 0)
kernel++;
}
if (num == 0 || rootfs == 0) {
/* We need at least one module - rootfs. */
printf("No rootfs module provided, aborting\n");
error = EINVAL;
goto error;
}
if (xen == 1 && kernel == 0) {
printf("No kernel module provided for xen, aborting\n");
error = EINVAL;
goto error;
}
mb_mod = (struct multiboot_mod_list *) PTOV(last_addr);
last_addr += roundup(sizeof(*mb_mod) * num, MULTIBOOT_INFO_ALIGN);
bzero(mb_mod, sizeof(*mb_mod) * num);
num = 0;
for (mfp = fp->f_next; mfp != NULL; mfp = mfp->f_next) {
mb_mod[num].mod_start = mfp->f_addr;
mb_mod[num].mod_end = mfp->f_addr + mfp->f_size;
if (strcmp(mfp->f_type, "kernel") == 0) {
cmdline = NULL;
error = mb_kernel_cmdline(mfp, rootdev, &cmdline);
if (error != 0)
goto error;
} else {
len = strlen(mfp->f_name) + 1;
len += strlen(mfp->f_type) + 5 + 1;
if (mfp->f_args != NULL) {
len += strlen(mfp->f_args) + 1;
}
cmdline = malloc(len);
if (cmdline == NULL) {
error = ENOMEM;
goto error;
}
if (mfp->f_args != NULL)
snprintf(cmdline, len, "%s type=%s %s",
mfp->f_name, mfp->f_type, mfp->f_args);
else
snprintf(cmdline, len, "%s type=%s",
mfp->f_name, mfp->f_type);
}
mb_mod[num].cmdline = mb_malloc(strlen(cmdline)+1);
i386_copyin(cmdline, mb_mod[num].cmdline, strlen(cmdline)+1);
free(cmdline);
num++;
}
mb_info->mods_count = num;
mb_info->mods_addr = VTOP(mb_mod);
mb_info->flags |= MULTIBOOT_INFO_MODS;
md = file_findmetadata(fp, MODINFOMD_SMAP);
if (md == NULL) {
printf("no memory smap\n");
error = EINVAL;
goto error;
}
num = md->md_size / sizeof(struct bios_smap); /* number of entries */
mmap = (multiboot_memory_map_t *)PTOV(mb_malloc(sizeof(*mmap) * num));
mb_info->mmap_length = num * sizeof(*mmap);
smap = (struct bios_smap *)md->md_data;
for (i = 0; i < num; i++) {
mmap[i].size = sizeof(*smap);
mmap[i].addr = smap[i].base;
mmap[i].len = smap[i].length;
mmap[i].type = smap[i].type;
}
mb_info->mmap_addr = VTOP(mmap);
mb_info->flags |= MULTIBOOT_INFO_MEM_MAP;
if (strstr(getenv("loaddev"), "net") != NULL &&
bootp_response != NULL) {
mb_info->drives_length = bootp_response_size;
mb_info->drives_addr = mb_malloc(bootp_response_size);
i386_copyin(bootp_response, mb_info->drives_addr,
bootp_response_size);
mb_info->flags &= ~MULTIBOOT_INFO_DRIVE_INFO;
}
/*
* Set the image command line. Need to do this as last thing,
* as illumos kernel dboot_startkern will check cmdline
* address as last check to find first free address.
*/
if (fp->f_args == NULL) {
if (xen)
cmdline = getenv("xen_cmdline");
else
cmdline = getenv("boot-args");
if (cmdline != NULL) {
fp->f_args = strdup(cmdline);
if (fp->f_args == NULL) {
error = ENOMEM;
goto error;
}
}
}
/*
* If the image is xen, we just use f_name + f_args for commandline
* for unix, we need to add zfs-bootfs.
*/
if (xen) {
len = strlen(fp->f_name) + 1;
if (fp->f_args != NULL)
len += strlen(fp->f_args) + 1;
if (fp->f_args != NULL) {
if((cmdline = malloc(len)) == NULL) {
error = ENOMEM;
goto error;
}
snprintf(cmdline, len, "%s %s", fp->f_name, fp->f_args);
} else {
cmdline = strdup(fp->f_name);
if (cmdline == NULL) {
error = ENOMEM;
goto error;
}
}
} else {
cmdline = NULL;
if ((error = mb_kernel_cmdline(fp, rootdev, &cmdline)) != 0)
goto error;
}
mb_info->cmdline = mb_malloc(strlen(cmdline)+1);
i386_copyin(cmdline, mb_info->cmdline, strlen(cmdline)+1);
mb_info->flags |= MULTIBOOT_INFO_CMDLINE;
free(cmdline);
cmdline = NULL;
dev_cleanup();
__exec((void *)VTOP(multiboot_tramp), MULTIBOOT_BOOTLOADER_MAGIC,
(void *)entry, (void *)VTOP(mb_info));
panic("exec returned");
error:
free(cmdline);
return (error);
}
static int
multiboot_exec(struct preloaded_file *fp)
{
vm_offset_t module_start, last_addr, metadata_size;
vm_offset_t modulep, kernend, entry;
struct file_metadata *md;
Elf_Ehdr *ehdr;
struct multiboot_info *mb_info = NULL;
struct multiboot_mod_list *mb_mod = NULL;
char *cmdline = NULL;
size_t len;
int error, mod_num;
/*
* Don't pass the memory size found by the bootloader, the memory
* available to Dom0 will be lower than that.
*/
unsetenv("smbios.memory.enabled");
/* Allocate the multiboot struct and fill the basic details. */
mb_info = malloc(sizeof(struct multiboot_info));
if (mb_info == NULL) {
error = ENOMEM;
goto error;
}
bzero(mb_info, sizeof(struct multiboot_info));
mb_info->flags = MULTIBOOT_INFO_MEMORY|MULTIBOOT_INFO_BOOT_LOADER_NAME;
mb_info->mem_lower = bios_basemem / 1024;
mb_info->mem_upper = bios_extmem / 1024;
mb_info->boot_loader_name = VTOP(mbl_name);
/* Set the Xen command line. */
if (fp->f_args == NULL) {
/* Add the Xen command line if it is set. */
cmdline = getenv("xen_cmdline");
if (cmdline != NULL) {
fp->f_args = strdup(cmdline);
if (fp->f_args == NULL) {
error = ENOMEM;
goto error;
}
}
}
if (fp->f_args != NULL) {
len = strlen(fp->f_name) + 1 + strlen(fp->f_args) + 1;
cmdline = malloc(len);
if (cmdline == NULL) {
error = ENOMEM;
goto error;
}
snprintf(cmdline, len, "%s %s", fp->f_name, fp->f_args);
mb_info->cmdline = VTOP(cmdline);
mb_info->flags |= MULTIBOOT_INFO_CMDLINE;
}
/* Find the entry point of the Xen kernel and save it for later */
if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) {
printf("Unable to find %s entry point\n", fp->f_name);
error = EINVAL;
goto error;
}
ehdr = (Elf_Ehdr *)&(md->md_data);
entry = ehdr->e_entry & 0xffffff;
/*
* Prepare the multiboot module list, Xen assumes the first
* module is the Dom0 kernel, and the second one is the initramfs.
* This is not optimal for FreeBSD, that doesn't have a initramfs
* but instead loads modules dynamically and creates the metadata
* info on-the-fly.
*
* As expected, the first multiboot module is going to be the
* FreeBSD kernel loaded as a raw file. The second module is going
* to contain the metadata info and the loaded modules.
*
* On native FreeBSD loads all the modules and then places the
* metadata info at the end, but this is painful when running on Xen,
* because it relocates the second multiboot module wherever it
* likes. In order to workaround this limitation the metadata
* information is placed at the start of the second module and
* the original modulep value is saved together with the other
* metadata, so we can relocate everything.
*
* Native layout:
* fp->f_addr + fp->f_size
* +---------+----------------+------------+
* | | | |
* | Kernel | Modules | Metadata |
* | | | |
* +---------+----------------+------------+
* fp->f_addr modulep kernend
*
* Xen layout:
*
* Initial:
* fp->f_addr + fp->f_size
* +---------+----------+----------------+------------+
* | | | | |
* | Kernel | Reserved | Modules | Metadata |
* | | | | dry run |
* +---------+----------+----------------+------------+
* fp->f_addr
*
* After metadata polacement (ie: final):
* fp->f_addr + fp->f_size
* +-----------+---------+----------+----------------+
* | | | | |
* | Kernel | Free | Metadata | Modules |
* | | | | |
* +-----------+---------+----------+----------------+
* fp->f_addr modulep kernend
* \__________/ \__________________________/
* Multiboot module 0 Multiboot module 1
*/
fp = file_findfile(NULL, "elf kernel");
if (fp == NULL) {
printf("No FreeBSD kernel provided, aborting\n");
error = EINVAL;
goto error;
}
if (fp->f_metadata != NULL) {
printf("FreeBSD kernel already contains metadata, aborting\n");
error = EINVAL;
goto error;
}
mb_mod = malloc(sizeof(struct multiboot_mod_list) * NUM_MODULES);
if (mb_mod == NULL) {
error = ENOMEM;
goto error;
}
bzero(mb_mod, sizeof(struct multiboot_mod_list) * NUM_MODULES);
/*
* Calculate how much memory is needed for the metatdata. We did
* an approximation of the maximum size when loading the kernel,
* but now we know the exact size, so we can release some of this
* preallocated memory if not needed.
*/
last_addr = roundup(max_addr(), PAGE_SIZE);
mod_num = num_modules(fp);
/*
* Place the metadata after the last used address in order to
* calculate it's size, this will not be used.
*/
error = bi_load64(fp->f_args, last_addr, &modulep, &kernend, 0);
if (error != 0) {
printf("bi_load64 failed: %d\n", error);
goto error;
}
metadata_size = roundup(kernend - last_addr, PAGE_SIZE);
/* Check that the size is not greater than what we have reserved */
if (metadata_size > METADATA_RESV_SIZE(mod_num)) {
printf("Required memory for metadata is greater than reserved "
"space, please increase METADATA_FIXED_SIZE and "
"METADATA_MODULE_SIZE and rebuild the loader\n");
error = ENOMEM;
goto error;
}
/* Clean the metadata added to the kernel in the bi_load64 dry run */
file_removemetadata(fp);
/*
* This is the position where the second multiboot module
* will be placed.
*/
module_start = fp->f_addr + fp->f_size - metadata_size;
error = bi_load64(fp->f_args, module_start, &modulep, &kernend, 0);
if (error != 0) {
printf("bi_load64 failed: %d\n", error);
goto error;
}
mb_mod[0].mod_start = fp->f_addr;
mb_mod[0].mod_end = fp->f_addr + fp->f_size;
mb_mod[0].mod_end -= METADATA_RESV_SIZE(mod_num);
mb_mod[1].mod_start = module_start;
mb_mod[1].mod_end = last_addr;
mb_info->mods_count = NUM_MODULES;
mb_info->mods_addr = VTOP(mb_mod);
mb_info->flags |= MULTIBOOT_INFO_MODS;
dev_cleanup();
__exec((void *)VTOP(multiboot_tramp), (void *)entry,
(void *)VTOP(mb_info));
panic("exec returned");
error:
if (mb_mod)
free(mb_mod);
if (mb_info)
free(mb_info);
if (cmdline)
free(cmdline);
return (error);
}