patacongo commented on issue #3737:
URL:
https://github.com/apache/incubator-nuttx/issues/3737#issuecomment-842799079
> ERROR: exec(errno) failed: 2
You can see the meaning of the error in include/errno.h:
#define ENOENT 2
#define ENOENT_STR "No such file or directory"
Which suggests that there is something wrong with your file system or file
search PATH. The ELF loader should only return the error 2 if the executable
file cannot be found.
That error is printed by nxflat_main.c:
234 errmsg("ERROR: exec(%s) failed: %d\n", dirlist[i], errno);
Do you have a PATH variable set up in the environment? NO, it is not
defined in your defconfig file. So the following should be using the absolute
path /mnt/romfs/errno. That should work provided that /dev/ram0 is valid.
214 #ifdef CONFIG_LIB_ENVPATH
215 filename = dirlist[i];
216 #else
217 snprintf(fullpath, 128, "%s/%s", MOUNTPT, dirlist[i]);
218 filename = fullpath;
219 #endif
230 args[0] = NULL;
231 ret = exec(filename, args, g_nxflat_exports,
g_nxflat_nexports);
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