tools/mkimage: fix handling long filenames
The cmdline for calling the dtc was cut-off when using long filenames (e.g.
245 bytes) for output-file and datafile of "-f" parameter.
For FIT-images cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN] is declared (hardcoded 512 bytes),
and contains some static values, the path of a tmpfile and a datafile. tmpfile is
max MKIMAGE_MAX_TMPFILE_LEN (256) and datafile might be also this size. Having two
very long pathname results in a truncation os the executed shell command, as the
truncated datafile path will not be found.
Redefine MKIMAGE_MAX_DTC_CMDLINE_LEN to "2 * MKIMAGE_MAX_TMPFILE_LEN + 35 for the
parameters.
This likely applies to the "-d" parameter, too.
Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
diff --git a/tools/mkimage.h b/tools/mkimage.h
index 0254af5..5b096a5 100644
--- a/tools/mkimage.h
+++ b/tools/mkimage.h
@@ -42,6 +42,6 @@
#define MKIMAGE_TMPFILE_SUFFIX ".tmp"
#define MKIMAGE_MAX_TMPFILE_LEN 256
#define MKIMAGE_DEFAULT_DTC_OPTIONS "-I dts -O dtb -p 500"
-#define MKIMAGE_MAX_DTC_CMDLINE_LEN 512
+#define MKIMAGE_MAX_DTC_CMDLINE_LEN 2 * MKIMAGE_MAX_TMPFILE_LEN + 35
#endif /* _MKIIMAGE_H_ */