[Bug ld/23078] Weak alias to a weak symbol is not resolved correctly.

[pftbest at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23078

--- Comment #2 from Vadzim Dambrouski <pftbest at gmail dot com> ---
Hello Nick,

Thank you for suggestion, I've tried weakref, and does help with the case I
have posted above, but it still doesn't do exactly what I need.

Here is updated code:

// main.c -------------------

void _start() {}

void DEFAULT_HANDLER() {
  *((int*)0x10) = 5;
}

void BUS_FAULT() {
  *((int*)0x10) = 7;
}

// foo.c --------------------

__attribute__((weak)) void DEFAULT_HANDLER() {
    *((int*)0x10) = 1;
}

static __attribute__((weakref ("DEFAULT_HANDLER"))) void HARD_FAULT();
static __attribute__((weakref ("DEFAULT_HANDLER"))) void BUS_FAULT();

void (*VECTORS[])() = {
    HARD_FAULT,
    BUS_FAULT,
};

// ----------------------

In this new example I have created a strong symbols for both default handler
and for one of specific handlers. I expect that VECTORS table would contain
pointers to functions 5 and 7, but in practice it contains pointers to 5 and 5.
This is not what I need, unfortunately.

Regards,
Vadzim

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