Matthew Jones wrote:
From: Yaro Pollak
Greetings,
I am cross-compiling on GCC 3.4.1 for the PowerPC 405,
which can handle unaligned accesses in hardware.
Whenever I am accessing members of a packed bit-struct by
pointer, the compiler produces byte accesses, instead of
4-byte acceses. I've tried to use |-mstrict-align but to
no avail. Am I doing something wrong?
Are you sure it is the compiler? Are you looking at the generated
assembler, or inferring this from a logic analyser? If its the
second case, it could be the uP rather than gcc.
I'm sorry I failed to mention that as well, but I am in fact looking at
the generated assembler, vs. the assembler generated when I am accessing
the members of the struct directly (not through a pointer).
Yaro
