NetBSD/emips port runs on Xilinx and Beecube FPGA systems and the
Giano system simulator.
eMIPS is a platform developed at Microsoft Research for researching
reconfigurable computing. eMIPS allows dynamic loading and scheduling
of application-specific circuits for the purpose of accelerating
computations based on the current workload.
NetBSD eMIPS support for NetBSD 4.x was written at Microsoft Research
by Alessandro Forin and Neil Pittman. Microsoft Corporation has
donated full copyright to The NetBSD Foundation.
Platform support for eMIPS is the first part of Microsoft's
contribution. The second part includes the hardware accelerator
framework and will be proposed on tech-kern soon.
the default being ./a.out. If we run build.sh rumptest from a r/o
fs, linking fails before it gets to the parts that interest us and
the whole test silently fails.
So:
1) use -o /tmp/rumptest.$$ (objdir might be better, but I couldn't
determine with a high confidence how to obtain the definite one
in build.sh)
2) catch "cannot open output file" error from ld
This fixes the problem 'nbconfig: cannot create /GENERIC'
when KERNOBJDIR has a relative path and is defined as env variable.
Problem reported and fix proposed on tech-toolchain@.
'commit it then' christos@
which does much of the same work but prints a result instead of
setting a global variable. Adjust the rebuildmake function to suit.
Improve the comments describing how we try to figure out whether
the existing tooldir make needs to be rebuilt.
Use getmakevar to expand MAKEOBJDIRPREFIX or MAKEOBJDIR, or (if
neither of those variables is set) use a non-recursive "make obj" in
the top level source directory.
* Do not let TOP_objdir default to ${TOP}. It's now set only by the
-M or -O command line options, or after using getmakevar to expand
MAKEOBJDIRPREFIX or MAKEOBJDIR.
* Make try_set_TOOLDIR handle MAKEOBJDIRPERFIX passed from the
environment. It runs too early to use getmakevar, so it will not work
if the value contains embedded '${...}' variable references.
* Use '$TOOLDIR' (with a literal '$') instead of 'nonexistent' in
a message when rebuilding make when TOOLDIR is not yet known.
is set to "yes" -- defaults to "no" except for build.sh builds. This
results in a deterministic .a file rather than one that reflects
timestamps and permissions on the source files.
Also, clean up the ar flags we're using, and remove a redundant use of
ranlib that on a modern POSIX ar can be done with the "s" flag.
Discussed on tech-toolchain
prints something that does not look like an identifier, then use uname
-m instead. (Cygwin prints "unknown", and OpenBSD prints a long string
containing several spaces; this code should handle both.)
0 Minimal output ("quiet")
1 Describe what is occurring
2 Describe what is occurring and echo the actual command
3 Ignore the effect of the "@" prefix in make commands
4 Trace shell commands using the shell's -x flag
The default remains MAKEVERBOSE=2.
