[Buildroot] [PATCH v3 1/1] package/makedumpfile: new package

[Alexander Egorenkov]

> elf_info.c: In function ‘get_elf64_phnum’:
> elf_info.c:1050:23: error: ‘PN_XNUM’ undeclared (first use in this function)
>   if (ehdr->e_phnum == PN_XNUM) {
>                        ^
> elf_info.c:1050:23: note: each undeclared identifier is reported only once for each function it appears in
> make[1]: *** [Makefile:90: elf_info.o] Error 1
>
> PN_XNUM is defined in libelf/elf.h in the elfutils code base, but it
> seems like this header file is only installed if elfutils is built with
> --enable-install-elfh. However, I am not sure what would be the impact
> of installing elf.h. Indeed, the kernel headers also have an elf.h file
> in usr/include/linux/elf.h.
>
> Could you have a look into this ?

Hmm, i checked the usr/include/linux/elf.h and it defines
PN_XNUM but makedumpfile doesn't include this one and takes the one from
glibc which is much bigger but doesn't contain this define,
unfortunately. One option would be to patch makedumpfile and define
PN_XNUM if it not yet defined, not sure whether this the way you want to
go ? At least we wouldn't possibly break any other packages. What do you
think ?
This is just stupid, why would elfutils override glibc's elf.h, sigh.
 
Thanks for feedback
Regards
Alex