use -j; all make's in a recursive build cooperate to limit the total
number of jobs, using a token-passing scheme.
The current token passing algorithm is similar to the one implemented
by gmake; there is a single pipe which is inherited through the entire
process hierarchy; tokens are obtained by reading a byte from the
"read end" of the pipe, and are returned by writing them to the "write
end". This exact algorithm is likely to change in the future.
Implementation details:
- Use the new trace facility to allow measurement of the
effectiveness of different token-passing schemes
- Get a token in MakeStartJobs(), return it in Make_Update()
- Eliminate Job_Full() and the jobFull global since they are
redundant with token system.
- Add an "internal" -J option (to pass the token pipe fd's down to
submakes) and a -T option for tracing.
- Change how compatMake is forced so that -j means something when
inherited by submakes.
- When waiting for a token, poll the token-passing pipe as well as
the output pipes of existing jobs.
PCMCIAVERBOSE (commented out)
isapnp at isa (commented out)
midi at pcppi
ep at isapnp (commented out)
ix at isa (commented out)
iy at isa (commented out)
wdc at isapnp (commented out)
wss at isapnp (commented out)
The isapnp stuff is commented out because it may crash due to unimplemented
alloc methods on some machines with some devices. This should really get
fixed.
if it is 64k. TCL and TCM will be set properly if we just leave it alone.
Not only that, the ncr53c9x driver issues TRPAD or TRANS based on this
value. We do not want TRPAD in this case!
them.
These are identical to the current arm32 sources with the following exceptions:
- References to C labels are wrapped in _C_LABEL().
- Function returns have an alternate version inside #ifdef __APCS_26__.
The code is (almost) a direct copy of the current arm26 sources.
It's identical to the current arm32 sources, with the following exceptions:
- _C_LABEL is used on references to C labels from assembler.
- Function returns in assembler have APCS-26 versions in #ifdef __APCS_26__.
- It uses SoftFloat 2a rather than SoftFloat 1a.
The first two of these should be inconsequential. I believe that SoftFloat 2a
should work on arm32 and be backward-compatible with existing code, but this
is not obviously true. For now, arm32 remains using its own bits of libc.
call directly (i.e. not a reference argument, but a direct return
value). So far I have only seen this with binaries that talk
to their own device modules, using non-standard ioctl calls.
Hence, allow for a pass-through ioctl call using PTIOCLINUX to
return EJUSTRETURN, signalling that the return value is in
the 'data' field of the structure, which can then be put in 'retval'.
an ugly bit where we record the value of a2 while handling a "nofault" bus
error in locore.s in order to know how far the transaction got before a
disconnect (see esp.c comments for more details on this).
Also get rid of a loop (and delay()!) in the interrupt routine--hinted at
and researched by Chas Williams <chas@cmf.nrl.navy.mil>.
