Estimated hours taken: 0.2
tools/binary:
tools/divide:
tools/linear:
Fix some software rot in these scripts: we now need main.[co] in
the top level directory, and END_MODULE is now spelt MR_END_MODULE.
Estimated hours taken: 6
configure.in:
Rename BRANCH_DELAY_SLOT to HAVE_DELAY_SLOT.
bootcheck:
Add a new option, -r. If given, this makes a copy of the runtime
directory instead of linking to it in stage[23]. This allows the
stage[23] versions to use a different grade than stage1.
Another change is that we now remake only the library and compiler
dependencies, but not the profiler dependencies.
binary:
A shell script to find code generation and optimization bugs by
performing binary search. It depends on the existence of two
directories, stage2.ok and stage2.bad, containing correct and buggy
versions of stage2, and tries different mixes of .c code from each
until it locates the offending part of the offending .c file.
Note that this script has so far been tested only in pieces.
binary_step:
Check whether a particular mix of .c files from the ok and bad
directories is able to build a stage3 compiler. It doesn't check
for differences from stage2, since stage2 is a patchwork.
divide:
Divide a .c file into its parts.
assemble:
Assemble a .c file, with the specified parts coming from the .c file
in stage2.bad and the others from stage2.ok.
NOTE: these scripts require some other auxiliary scripts. I will put these
into /usr/local/contrib when it is created on cyclone. In the meantime,
they are in ~zs/bin/script.
