Shorter answer: Accessing the “value” of a linker script variable is NOT undefined behavior, and is fine to do, so long as you want the actual data stored at that location in memory and not the address of that memory or the “value” of a linkerscript variable which happens to be seen by C code … Read more
As far as I can tell, GNU binutils does not support the Mach-O format. None of the documentation mentions it, and some Googling turns up some recent messages indicating that it is not supported. Now, you mention the Contiki OS, which looks to me like an embedded operating system. Are you needing to compile to … Read more
As far as I can tell, GNU binutils does not support the Mach-O format. None of the documentation mentions it, and some Googling turns up some recent messages indicating that it is not supported. Now, you mention the Contiki OS, which looks to me like an embedded operating system. Are you needing to compile to … Read more
Use the -O binary output format: objcopy -O binary –only-section=.text foobar.elf foobar.text Just verified with avr-objcopy and an AVR ELF image’s .text section. Note that if, as Tim points out below, your section doesn’t have the ALLOC flag, you may have to add –set-section-flags .text=alloc to be able to extract it.