https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86555
Bernd Edlinger <bernd.edlinger at hotmail dot de> changed:
What |Removed |Added
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CC| |bernd.edlinger at hotmail dot
de
--- Comment #3 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
(In reply to Khem Raj from comment #2)
> we can avoid the problem by altering the structure, thats not an issue, but
> do you think compiler is right here by assuming to generate LDRD on a 4byte
> aligned address when it is told that architecture (-march=armv5te) its
> building for does not support 4byte aligned address for LDRD but only 8-byte
> aligned ?
the structure has to be aligned by 8 bytes. (due to the long long member)
Therefore the compiler assumes that the DIR->lock is also aligned by 8 bytes.
I do not see why lock[2] vs. lock[1] makes a difference.
If you cannot make it aligned, you need to mark the structure with
__attribute__((__packed__)) for instance.
