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Fix stdlib/tst-setcontext.c for GCC 12 -Warray-compare

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Building stdlib/tst-setcontext.c fails with GCC mainline:

tst-setcontext.c: In function 'f2':
tst-setcontext.c:61:16: error: comparison between two arrays [-Werror=array-compare]
   61 |   if (on_stack < st2 || on_stack >= st2 + sizeof (st2))
      |                ^
tst-setcontext.c:61:16: note: use '&on_stack[0] < &st2[0]' to compare the addresses

The comparison in this case is deliberate, so adjust it as suggested
in that note.

Tested with build-many-glibcs.py (GCC mainline) for aarch64-linux-gnu.

(cherry picked from commit a0f0c08e4f)
This commit is contained in:
Joseph Myers 2021-10-05 14:25:40 +00:00 committed by Florian Weimer
parent 92d5c52aaa
commit 26c7c6bac9
1 changed files with 1 additions and 1 deletions
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2
stdlib/tst-setcontext.c
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@ -58,7 +58,7 @@ f2 (void)
puts ("start f2");
printf ("&on_stack=%p\n", on_stack);
if (on_stack < st2 || on_stack >= st2 + sizeof (st2))
if (&on_stack[0] < &st2[0] || &on_stack[0] >= st2 + sizeof (st2))
{
printf ("%s: memory stack is not where it belongs!", __FUNCTION__);
exit (1);