https://sourceware.org/bugzilla/show_bug.cgi?id=30860
--- Comment #1 from jacob at jacob dot remcomp.fr ---
FUNCTION: int relax_segment(struct frag *segment_frag_root,segT segment,int
pass)
FILE: write.c: 2683
case rs_org:
{
offsetT target = offset;
addressT after;
if (symbolP) {
/* Convert from an actual address to an offset into the section.
Here
* it is assumed that the section's VMA is zero,and can omit
subtracting
* it from the symbol's value to get the address offset. */
know(S_GET_SEGMENT(symbolP)->vma == 0);
target += S_GET_VALUE(symbolP) * OCTETS_PER_BYTE;
}
know(fragP->fr_next); // Not active if NDEBUG is defined
after = fragP->fr_next->fr_address + stretch;
We know that fragP->fr_next CAN BE NULL, since the controlling condition of
this loop (the switch is inside a loop) is:
for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next) {
So, we RELY on fr_next being NULL to stop the loop. But we do not test for this
condition before using it here. As you know tghe "know" construct is NOT active
if NDEBUG is active.
PRPOSED FIX:
Replace "know" by "gas_assert"
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