From fc21a88f801c41a535397a359b3b5bdc3ef8e79f Mon Sep 17 00:00:00 2001 From: Sven Roederer Date: Mon, 27 Apr 2020 02:08:38 +0200 Subject: 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 --- tools/mkimage.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/mkimage.h b/tools/mkimage.h index 0254af59fbe..5b096a545b7 100644 --- a/tools/mkimage.h +++ b/tools/mkimage.h @@ -42,6 +42,6 @@ static inline ulong map_to_sysmem(void *ptr) #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_ */ -- cgit v1.3.1 From ea5d3731b843b14f1c48d0d0f2c7d2877ecbf673 Mon Sep 17 00:00:00 2001 From: Sven Roederer Date: Mon, 27 Apr 2020 02:08:39 +0200 Subject: tools/fit-image: print a warning when cmd-line for dtc might be truncated Signed-off-by: Sven Roederer --- tools/fit_image.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools') diff --git a/tools/fit_image.c b/tools/fit_image.c index 4aeabbcfe97..88ff093d05b 100644 --- a/tools/fit_image.c +++ b/tools/fit_image.c @@ -17,6 +17,7 @@ #include "fit_common.h" #include "mkimage.h" #include +#include #include #include #include @@ -744,6 +745,9 @@ static int fit_handle_file(struct image_tool_params *params) snprintf(cmd, sizeof(cmd), "cp \"%s\" \"%s\"", params->imagefile, tmpfile); } + if (strlen(cmd) >= MKIMAGE_MAX_DTC_CMDLINE_LEN - 1) { + fprintf(stderr, "WARNING: command-line for FIT creation might be truncated and will probably fail.\n"); + } if (*cmd && system(cmd) == -1) { fprintf (stderr, "%s: system(%s) failed: %s\n", -- cgit v1.3.1