to call mcount(). This is needed because the ``link a6,#0'' insn used
trips up gcc's ANSI preprocessor (A # in a function-type macro must be
followed by a macro argument). _PROF_PROLOG is also used in the i386
asm.h.
Solaris' asm_linkage.h has a MCOUNT macro similar to _PROF_PROLOG
except it expands to different code sequences based on whether a
function is being compiled with "prof" or "gprof" instrumentation.
I also discovered that the m68k ALTENTRY is very different than the
implementation used by other NetBSD ports. Usually ALTENTRY simply
provides an alternate function entry point. The m68k version takes a
second argument and jumps inside the second function when profiling is
enabled. The m68k behavior is similar to the ENTRY2 macro found in
solaris.
Providing ENTRY2 and changing all the code that uses ALTENTRY to use
it would be a desirable change.
(1) the if_prom code needs to be cleaned up quite a bit
(right now it hard-codes client's ethernet address), and
(2) much of this code (esp: getsecs.c, netboot.c, newvers.sh,
rpcc.S) should be shared with other Alpha boot blocks,
and dev_net.[ch] should maybe go in libsa proper.
in the branch-emulation code was uninitialized, due to a misplaced #endif.
Remove the relevant #ifdef (macro version of GetBranchDest), and move the
XXX note about r4000 branch targets to the function definition.
boot block, since it will be shared with the network boot block.
(2) Kill a.out support, since it never worked was never used, and will
never be.
(3) Add support for booting of ELF kernels, from Matt Thomas. (Currently
untested, but it compiles.)
serial consoles to the 1.2 branch. Includes:
* dynamically allocated new-config softc
* remove dependencies on Decstation CPU type, use flags in softc instead.
* pass in values for softc flags (q.v.) from parent-specific attach code
* #ifdef out rts/cts flow control support until it's known to work on
200s.
* redo initialization of serial consoles (needs more work).
force a drop to the system debugger. WARNING: this used to be the
default behavior! Modify custom kernel configs accordingly.
- Check for ZS_HWFLAG_CONABRT in zs_abort(), and don't abort if it's
not set.
jtc