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-rw-r--r--arch/sandbox/os/common.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index 8611882..3ad12b4 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -39,6 +39,8 @@
#include <signal.h>
#include <sys/select.h>
#include <sys/wait.h>
+#include <sys/ioctl.h>
+#include <linux/fs.h>
/*
* ...except the ones needed to connect with barebox
*/
@@ -260,11 +262,17 @@ static int add_image(char *str, char *devname_template, int *devname_number)
hf->size = s.st_size;
hf->devname = strdup(devname);
+ if (S_ISBLK(s.st_mode)) {
+ if (ioctl(fd, BLKGETSIZE64, &hf->size) == -1) {
+ perror("ioctl");
+ goto err_out;
+ }
+ }
hf->base = (unsigned long)mmap(NULL, hf->size,
PROT_READ | (readonly ? 0 : PROT_WRITE),
MAP_SHARED, fd, 0);
if ((void *)hf->base == MAP_FAILED)
- printf("warning: mmapping %s failed\n", filename);
+ printf("warning: mmapping %s failed: %s\n", filename, strerror(errno));
ret = barebox_register_filedev(hf);
if (ret)