Subject: Building a snapshot and awk
To: None <firstname.lastname@example.org, email@example.com>
From: James Chacon <firstname.lastname@example.org>
Date: 12/01/2001 22:17:09
Seems even after the liberal sprinkling of -msoft-quad-float one will still
have issues getting a working awk on sparc64.
The problem is awk does a lot of double -> int conversion internally and
those pass through libgcc routines to do the actual conversions. Some of
these promote to quad math first at which point we'll lose.
So I committed changes to libgcc's Makefile which also forces soft quad float
for sparc64 and added the following to UPDATING:
In order for a sparc64 build to work you must have a working awk. If
you've built and installed a system with the new toolchain up to this
point you do not have a working awk as it's abililty to do floating
point is broken.
remake and install gnu/lib/libgcc
remake and install gnu/usr.bin/gawk into /usr/bin (make sure it links
against the new libgcc.a)
The reason, is that build.sh does presume you've got a working native userland
and anyone building on sparc64 since the new toolchain conversion doesn't
(at least for anything doing double->int conversions like awk).
In any case this still really smells like bad emulation code somewhere for the
actual quad operations as the output'd assembly for these ops otherwise looks