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Warning and partial fix for gcc -freorder-blocks-and-partition related problem.

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PR 994
* config/tc-ia64.c (slot_index): Revert last change.  If first_frag
is NULL, then emit a warning, and return the current index.
This commit is contained in:
Jim Wilson 2005-06-08 19:47:59 +00:00
parent 6b5d3a4d35
commit 4dddc1d199
2 changed files with 27 additions and 1 deletions
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6
gas/ChangeLog
View File

@ -1,3 +1,9 @@
2005-06-08 James E Wilson <wilson@specifixinc.com>
PR 994
* config/tc-ia64.c (slot_index): Revert last change. If first_frag
is NULL, then emit a warning, and return the current index.
2005-06-08 Tomas Hurka <tom@hukatronic.cz>
PR991

22
gas/config/tc-ia64.c
View File

@ -2655,7 +2655,7 @@ slot_index (slot_addr, slot_frag, first_addr, first_frag, before_relax)
/* If the two addresses are in different frags, then we need to add in
the remaining size of this frag, and then the entire size of intermediate
frags. */
while (first_frag != NULL && slot_frag != first_frag)
while (slot_frag != first_frag)
{
unsigned long start_addr = (unsigned long) &first_frag->fr_literal;
@ -2708,6 +2708,26 @@ slot_index (slot_addr, slot_frag, first_addr, first_frag, before_relax)
/* Move to the beginning of the next frag. */
first_frag = first_frag->fr_next;
first_addr = (unsigned long) &first_frag->fr_literal;
/* This can happen if there is section switching in the middle of a
function, causing the frag chain for the function to be broken. */
if (first_frag == NULL)
{
/* We get six warnings for one problem, because of the loop in
fixup_unw_records, and because fixup_unw_records is called 3
times: once before creating the variant frag, once to estimate
its size, and once to relax it. This is unreasonable, so we use
a static var to make sure we only emit the warning once. */
static int warned = 0;
if (!warned)
{
as_warn ("Corrupted unwind info due to unsupported section switching");
warned = 1;
}
return index;
}
}
/* Add in the used part of the last frag. */