Completion of error handling

[elfring]

Would you like to add more error handling for return values from functions like the following?

• malloc ⇒ elf32
• printf ⇒ next

[butastur-rtos]

elfring, do you mean change int elf32(...) to void * elf32(...) ？

[elfring]

No.

I suggest to avoid ignorance of return values a bit more.
Would you like to detect every error situation as early as possible?