This patch (commit r261518) has broken the build of the glibc testsuite.
I see, for example for aarch64-linux-gnu with build-many-glibcs.py:
In function 'test_strncat',
inlined from 'main' at tester.c:1621:3:
tester.c:490:13: error: 'strncat' accessing 18446744073709551600 or more bytes
at offsets 0 and 0 overlaps 9223372036854775793 bytes at offset
-9223372036854775793 [-Werror=restrict]
check (strncat (buf1 + n2, buf2 + n1, ~((size_t) 0) - n4)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
The code in question already has -Wstringop-overflow= and -Warray-bounds
warnings disabled as it's deliberately testing a large size. But a
-Wrestrict warning makes no sense to me at all here. The arguments are
based on two different variables, buf1 and buf2, and regardless of sizes
and offsets I wouldn't expect a -Wrestrict warning when the arguments are
based on different array variables like that.
--
Joseph S. Myers
jos...@codesourcery.com
