Re: getrandom not replaced

[Paul Eggert]

On 12/25/22 18:50, Po Lu wrote:
> Paul Eggert <eggert@cs.ucla.edu> writes:
>
> > What's the output of gcc -E?
> Which of armv7a-unknown-linux-android19-clang -E or gcc -E on the host
> do you mean?

I meant to use the compiler that is actually used to compile 
lib/getrandom.c. You can deduce this with something like this:

rm lib/getrandom.o; cd lib; make V=1 getrandom.o

and replace '-c -o getrandom.o' with '-E' in the resulting command.


> #if 1
> /* Fill a buffer with random bytes.  */
> # if 0
> #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
> #   undef getrandom
> #   define getrandom rpl_getrandom
> #  endif
> _GL_FUNCDECL_RPL (getrandom, ssize_t,
>                    (void *buffer, size_t length, unsigned int flags)
>                    _GL_ARG_NONNULL ((1)));
> _GL_CXXALIAS_RPL (getrandom, ssize_t,
>                    (void *buffer, size_t length, unsigned int flags));
> # else
> #  if !0
> _GL_FUNCDECL_SYS (getrandom, ssize_t,
>                    (void *buffer, size_t length, unsigned int flags)
>                    _GL_ARG_NONNULL ((1)));

That last decl should have been reached and should have declared 
'getrandom', but evidently it didn't. This is where the -E output would 
be helpful.