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Avoid another -Werror=dangling-pointer

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write.c:415:7: error: dangling pointer ‘prev_frag’ to ‘dummy’ may be used

	* write.c (chain_frchains_together_1): Rewrite loop as a do
	while to avoid false positive -Wdangling-pointer.
This commit is contained in:
Alan Modra
2023-04-25 13:26:12 +09:30
parent 9d4f5cabe2
commit 5b429b8707
1 changed files with 3 additions and 2 deletions
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5
gas/write.c
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@ -380,7 +380,7 @@ chain_frchains_together_1 (segT section, struct frchain *frchp)
fragS dummy, *prev_frag = &dummy; fragS dummy, *prev_frag = &dummy;
fixS fix_dummy, *prev_fix = &fix_dummy; fixS fix_dummy, *prev_fix = &fix_dummy;
for (; frchp; frchp = frchp->frch_next) do
{ {
prev_frag->fr_next = frchp->frch_root; prev_frag->fr_next = frchp->frch_root;
prev_frag = frchp->frch_last; prev_frag = frchp->frch_last;
@ -393,7 +393,8 @@ chain_frchains_together_1 (segT section, struct frchain *frchp)
seg_info (section)->fix_tail = frchp->fix_tail; seg_info (section)->fix_tail = frchp->fix_tail;
prev_fix = frchp->fix_tail; prev_fix = frchp->fix_tail;
} }
} frchp = frchp->frch_next;
} while (frchp);
gas_assert (prev_frag != &dummy gas_assert (prev_frag != &dummy
&& prev_frag->fr_type != 0); && prev_frag->fr_type != 0);
prev_frag->fr_next = 0; prev_frag->fr_next = 0;