This variable has served at least 27 years bringing unnecessary
redundancy to the code. It was already redundant at 1993-03-21, when
the code was imported to NetBSD.
When there is a dependency group at the end of a top-level makefile,
this dependency group is not finished properly. This allows to add
further commands to the targets of this dependency group, which was not
intended.
Since at least 1993-03-21, adding other makefiles in a .MAKEFILES
dependency has invoked undefined behavior because the command line
arguments were copied directly into the global makefiles variable,
without a proper strdup. Shortly after that, the word list created by
Str_Words (formerly brk_string) was freed.
This applies to both the -f and the -v and -V options. Luckily it is an
edge case to use these options in .MAKEFLAGS at all.
The -T option had already been fixed at 2000-12-30, but not the other
options.
Parsing a single shell command from a line does not belong in
Parse_File, its proper place is in Parse_Line. Having the whole
detailed code inline in Parse_File is even more confusing.
The tags prevent the structs from accidentally becoming compatible
types.
While here, remove a few typedefs for structs that are single-purpose,
since there is no point in abstracting from the actual representation of
these types.
The variable name "str" did not make it clear enough that the pointer is
constantly moving, to parse the given string. The name "p" expresses
this more clearly.
- Protect all of the system interrupt linkage with the cpu_lock mutex.
- Re-order some of the stores to the SCB vector table to make it safe
in the face of lockless interrupt dispatch.
- Add a framework for routing interrupts to specific CPUs. Interrupts
are still funneled only to the primary CPU, but that will change for
some systems soon. Ensure that interrupt handler lists are manipulated
only on the CPUs that handle that specific interrupt source. This required
a re-factor of the alpha_shared_intr_*() family of functions.
- Enable __HAVE_INTR_CONTROL, although interrupt redistribution is still
a no-op.
- Reduce code duplication in the Jenson direct-SCB interrupt handlers.
