+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011 The Chromium OS Authors.
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
+#include <setjmp.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <asm/sections.h>
#include <asm/state.h>
#include <os.h>
+#include <rtc_def.h>
/* Operating System Interface */
return read(fd, buf, count);
}
-ssize_t os_read_no_block(int fd, void *buf, size_t count)
-{
- const int flags = fcntl(fd, F_GETFL, 0);
-
- fcntl(fd, F_SETFL, flags | O_NONBLOCK);
- return os_read(fd, buf, count);
-}
-
ssize_t os_write(int fd, const void *buf, size_t count)
{
return write(fd, buf, count);
if (os_flags & OS_O_CREAT)
flags |= O_CREAT;
+ if (os_flags & OS_O_TRUNC)
+ flags |= O_TRUNC;
return open(pathname, flags, 0777);
}
exit(exit_code);
}
+int os_write_file(const char *name, const void *buf, int size)
+{
+ char fname[256];
+ int fd;
+
+ fd = os_open(fname, OS_O_WRONLY | OS_O_CREAT | OS_O_TRUNC);
+ if (fd < 0) {
+ printf("Cannot open file '%s'\n", fname);
+ return -EIO;
+ }
+ if (os_write(fd, buf, size) != size) {
+ printf("Cannot write to file '%s'\n", fname);
+ return -EIO;
+ }
+ os_close(fd);
+ printf("Write '%s', size %#x (%d)\n", name, size, size);
+
+ return 0;
+}
+
/* Restore tty state when we exit */
static struct termios orig_term;
static bool term_setup;
+static bool term_nonblock;
-static void os_fd_restore(void)
+void os_fd_restore(void)
{
- if (term_setup)
+ if (term_setup) {
+ int flags;
+
tcsetattr(0, TCSANOW, &orig_term);
+ if (term_nonblock) {
+ flags = fcntl(0, F_GETFL, 0);
+ fcntl(0, F_SETFL, flags & ~O_NONBLOCK);
+ }
+ term_setup = false;
+ }
}
/* Put tty into raw mode so <tab> and <ctrl+c> work */
void os_tty_raw(int fd, bool allow_sigs)
{
struct termios term;
+ int flags;
if (term_setup)
return;
- term_setup = true;
/* If not a tty, don't complain */
if (tcgetattr(fd, &orig_term))
if (tcsetattr(fd, TCSANOW, &term))
return;
+ flags = fcntl(fd, F_GETFL, 0);
+ if (!(flags & O_NONBLOCK)) {
+ if (fcntl(fd, F_SETFL, flags | O_NONBLOCK))
+ return;
+ term_nonblock = true;
+ }
+
+ term_setup = true;
atexit(os_fd_restore);
}
void *os_malloc(size_t length)
{
struct os_mem_hdr *hdr;
+ int page_size = getpagesize();
- hdr = mmap(NULL, length + sizeof(*hdr), PROT_READ | PROT_WRITE,
+ hdr = mmap(NULL, length + page_size,
+ PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (hdr == MAP_FAILED)
return NULL;
hdr->length = length;
- return hdr + 1;
+ return (void *)hdr + page_size;
}
void os_free(void *ptr)
int os_dirent_ls(const char *dirname, struct os_dirent_node **headp)
{
- struct dirent entry, *result;
+ struct dirent *entry;
struct os_dirent_node *head, *node, *next;
struct stat buf;
DIR *dir;
int ret;
char *fname;
+ char *old_fname;
int len;
+ int dirlen;
*headp = NULL;
dir = opendir(dirname);
if (!dir)
return -1;
- /* Create a buffer for the maximum filename length */
- len = sizeof(entry.d_name) + strlen(dirname) + 2;
+ /* Create a buffer upfront, with typically sufficient size */
+ dirlen = strlen(dirname) + 2;
+ len = dirlen + 256;
fname = malloc(len);
if (!fname) {
ret = -ENOMEM;
}
for (node = head = NULL;; node = next) {
- ret = readdir_r(dir, &entry, &result);
- if (ret || !result)
+ errno = 0;
+ entry = readdir(dir);
+ if (!entry) {
+ ret = errno;
break;
- next = malloc(sizeof(*node) + strlen(entry.d_name) + 1);
+ }
+ next = malloc(sizeof(*node) + strlen(entry->d_name) + 1);
if (!next) {
os_dirent_free(head);
ret = -ENOMEM;
goto done;
}
+ if (dirlen + strlen(entry->d_name) > len) {
+ len = dirlen + strlen(entry->d_name);
+ old_fname = fname;
+ fname = realloc(fname, len);
+ if (!fname) {
+ free(old_fname);
+ free(next);
+ os_dirent_free(head);
+ ret = -ENOMEM;
+ goto done;
+ }
+ }
next->next = NULL;
- strcpy(next->name, entry.d_name);
- switch (entry.d_type) {
+ strcpy(next->name, entry->d_name);
+ switch (entry->d_type) {
case DT_REG:
next->type = OS_FILET_REG;
break;
case DT_LNK:
next->type = OS_FILET_LNK;
break;
+ default:
+ next->type = OS_FILET_UNKNOWN;
}
next->size = 0;
snprintf(fname, len, "%s/%s", dirname, next->name);
next->size = buf.st_size;
if (node)
node->next = next;
- if (!head)
- head = node;
+ else
+ head = next;
}
*headp = head;
done:
closedir(dir);
+ free(fname);
return ret;
}
const char *os_dirent_get_typename(enum os_dirent_t type)
{
- if (type >= 0 && type < OS_FILET_COUNT)
+ if (type >= OS_FILET_REG && type < OS_FILET_COUNT)
return os_dirent_typename[type];
return os_dirent_typename[OS_FILET_UNKNOWN];
return unlink(fname);
}
+
+int os_find_u_boot(char *fname, int maxlen)
+{
+ struct sandbox_state *state = state_get_current();
+ const char *progname = state->argv[0];
+ int len = strlen(progname);
+ const char *suffix;
+ char *p;
+ int fd;
+
+ if (len >= maxlen || len < 4)
+ return -ENOSPC;
+
+ strcpy(fname, progname);
+ suffix = fname + len - 4;
+
+ /* If we are TPL, boot to SPL */
+ if (!strcmp(suffix, "-tpl")) {
+ fname[len - 3] = 's';
+ fd = os_open(fname, O_RDONLY);
+ if (fd >= 0) {
+ close(fd);
+ return 0;
+ }
+
+ /* Look for 'u-boot-tpl' in the tpl/ directory */
+ p = strstr(fname, "/tpl/");
+ if (p) {
+ p[1] = 's';
+ fd = os_open(fname, O_RDONLY);
+ if (fd >= 0) {
+ close(fd);
+ return 0;
+ }
+ }
+ return -ENOENT;
+ }
+
+ /* Look for 'u-boot' in the same directory as 'u-boot-spl' */
+ if (!strcmp(suffix, "-spl")) {
+ fname[len - 4] = '\0';
+ fd = os_open(fname, O_RDONLY);
+ if (fd >= 0) {
+ close(fd);
+ return 0;
+ }
+ }
+
+ /* Look for 'u-boot' in the parent directory of spl/ */
+ p = strstr(fname, "/spl/");
+ if (p) {
+ strcpy(p, p + 4);
+ fd = os_open(fname, O_RDONLY);
+ if (fd >= 0) {
+ close(fd);
+ return 0;
+ }
+ }
+
+ return -ENOENT;
+}
+
+int os_spl_to_uboot(const char *fname)
+{
+ struct sandbox_state *state = state_get_current();
+ char *argv[state->argc + 1];
+ int ret;
+
+ memcpy(argv, state->argv, sizeof(char *) * (state->argc + 1));
+ argv[0] = (char *)fname;
+ ret = execv(fname, argv);
+ if (ret)
+ return ret;
+
+ return unlink(fname);
+}
+
+void os_localtime(struct rtc_time *rt)
+{
+ time_t t = time(NULL);
+ struct tm *tm;
+
+ tm = localtime(&t);
+ rt->tm_sec = tm->tm_sec;
+ rt->tm_min = tm->tm_min;
+ rt->tm_hour = tm->tm_hour;
+ rt->tm_mday = tm->tm_mday;
+ rt->tm_mon = tm->tm_mon + 1;
+ rt->tm_year = tm->tm_year + 1900;
+ rt->tm_wday = tm->tm_wday;
+ rt->tm_yday = tm->tm_yday;
+ rt->tm_isdst = tm->tm_isdst;
+}
+
+void os_abort(void)
+{
+ abort();
+}
+
+int os_mprotect_allow(void *start, size_t len)
+{
+ int page_size = getpagesize();
+
+ /* Move start to the start of a page, len to the end */
+ start = (void *)(((ulong)start) & ~(page_size - 1));
+ len = (len + page_size * 2) & ~(page_size - 1);
+
+ return mprotect(start, len, PROT_READ | PROT_WRITE);
+}
projects / platform / kernel / u-boot.git / blobdiff