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# $NetBSD: HACKS,v 1.3 2003/01/23 10:39:21 dmcmahill Exp $
#
# This file is intended to document workarounds for currently unsolved
# (mostly) compiler bugs.
#
# Format:
# hack title
# cdate creation date
# mdate mod date
# who responsible developer
# port ...
# affected ports, space separated, if not "all"
# file affected file : revision : line from : line to
# affected files and revision and line numbers describing hack
# multiple lines if necessary.
# pr NNNN ...
# problem reports this hack works around, if known. Space
# separated.
# regress src/regress/directory/where/test/found
# regression test directories, if available.
# descr
# insert short informal description (multi-line). (Longer ones
# should be in the PR database. More formal descriptions might
# be in the regress tree. See above).
# kcah
# closing bracket.
#
# this is a comment.
hack gcc 2.95.3/alpha -O2 bug
cdate Thu Jan 23 15:42:57 UTC 2003
who dmcmahill
port alpha
file mail/imap-uwwm/Makefile : 1.52
descr
Compiler crashes
kcah
hack gcc 2.95.3/alpha c++ -O2 bug
cdate Fri Aug 16 06:38:16 EDT 2002
who dmcmahill
port alpha
file print/cjk-lyx/patches/patch-ab : 1.2
file print/cjk-lyx/patches/patch-ad : 1.1
file print/cjk-lyx/patches/patch-ae : 1.1
file print/cjk-lyx/patches/patch-af : 1.1
descr
Assembler runs forever and never returns with -O2 on some files.
kcah
hack gcc 2.95.3/alpha -O2 bug
cdate Sun Aug 11 12:39:46 EDT 2002
who dmcmahill
port alpha
file wm/flubox/patches/patch-ab : 1.3
descr
Assembler runs forever and never returns with -O2 on some files.
kcah
hack gcc 2.95.3/m68k -O2 bug
cdate Fri Jul 19 04:33:29 UTC 2002
who fredb
port mac68k, amiga
file graphics/gdk-pixbuf/patches/patch-aa : 1.3
descr
pixops.c gives 'Internal compiler error' with -O2 (but not -O),
on m68k only. The exact error message is reproduced in the patch.
kcah
hack gas 2.11.2 commutative constraint bug
cdate Fri May 10 04:51:29 UTC 2002
who fredb
port mac68k
file devel/gmp/patches/patch-aa : 1.7
descr
The __asm__() in longlong.h fails to assemble on m68k with an
"unrecognized instruction" error, unless the commutative
constraint ('%') is removed (which makes it *more* constrained).
kcah
hack gcc 2.95.3 -O2 bug
cdate Thu Apr 18 15:42:57 UTC 2002
who fredb, dmcmahill
port alpha, mac68k
file print/lyx/patches/patch-ab : 1.2
file print/lyx/patches/patch-ac : 1.1
file print/lyx/patches/patch-ae : 1.1
descr
lyxfunc.C causes 'Internal compiler error' with -O2 (but not -O).
The exact error message is reproduced in the patch.
Various other files cause the assembler to run forever (well,
I gave up after several hours) on netbsd-1.5.3/alpha using
gcc-2.95.3 and -O2.
kcah
hack cc -O* bug
mdate 29 Dec 2001
who abs
port arm32
file audio/libvorbis/Makefile : 1.12 : 20 : 28
descr
floor1.c causes Internal compiler error with egcs-2.91.66 19990314
(shipped with 1.5.2)
kcah
hack cc -O* bug
mdate 10 Oct 2001
who abs
port arm32
file net/djbdns/Makefile : 1.14 :
descr
various files go into infinite loop if optimisation enabled in
egcs-2.91.66 19990314 (shipped with 1.5.2)
kcah
hack cc -O* bug
mdate 03 Oct 2001
who abs
port arm32
file net/ucspi-tcp/Makefile : 1.7 :
descr
various files go into infinite loop if optimisation enabled in
egcs-2.91.66 19990314 (shipped with 1.5.2)
kcah
hack cc -O* bug
mdate 23 Aug 2001
who abs
port sparc64
file graphics/tiff/patches/patch-aa : 1.3 : 52 : 58
descr
on tif_dirread.c -O[12] causes the compiler to abort
kcah
hack cc -O* bug
cdate 08 Nov 2000
mdate 10 Jan 2002
who abs
port arm32 arm
file benchmarks/lmbench/patches/patch-aa : 1.2 :
file benchmarks/lmbench/Makefile : 1.9 :
descr
on certain c files, using -O[1-3] will cause the arm32 cc1 to run
forever.
reported to GCC people as PR optimization/2391.
kcah
hack cc -O* bug
mdate 18 May 2001
who abs
file x11/xscreensaver/distinfo : 1.2 :
file x11/xscreensaver/patches/patch-ab : 1.7 :
descr
on distort.c -O[12] causes the compiler to abort
kcah
hack c++ -O* bug
mdate 02 Jun 2000
who dmcmahill
file audio/festival/patches/patch-ai : 1.2 :
file audio/festival/patches/patch-aj : 1.1 :
file audio/festival/patches/patch-ak : 1.1 :
file audio/festival/patches/patch-al : 1.1 :
file cad/verilog/patches/patch-ad : 1.3 :
file cad/verilog-current/patches/patch-ad : 1.3 :
file cad/vipec/patches/patch-ac : 1.4 :
file emulators/stella/patches/patch-ac : 1.3 : 36 : 43
file graphics/kdegraphics/patches/patch-af : 1.5
file graphics/xpdf/Makefile : 1.18: 27
file graphics/xpdf/patches/patch-aa : 1.3
file math/yacas/patches/patch-ac : 1.1.1.1 :
file x11/glclock/Makefile : 1.3 : 18 : 20
file x11/windowmaker/Makefile : 1.51 : 39 : 42
pr 9453
descr
on certain c++ files, using -O[1-3] will cause cc1plus to run
forever. On other files, c++ -O[1-3] will cause the assembler to run
forever. This problem is noted on pmax and sparc (NetBSD-1.4.*) with
gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)
evidently this problem also exists on arm32.
kcah
hack mac68k-jade
mdate 29 Mar 2001
who hubertf
port mac68k
file textproc/jade/patches/patch-aa: 1.1 : 1 : 999
descr
jade on mac68k seems to dump core under certain conditions, the
patch was sent in by "Kogule, Ryo" <kogule@mars.dti.ne.jp> via
tech-pkg. The subject of the thread is "Jade doesn't work"
It is suspected that the patch really works around a bug in the
toolchain.
kcah
hack perl5-base
mdate 12 Apr 2001
who manu
port all
Checking in perl5-base/patches/patch-ag: 1.2 : 1 : 999
descr
The Xerces-Perl module is implemented as a shared object. It needs
some symbols from libgcc.a, such as __eh_alloc. It's not possible
to link the xerces-P shared object with libgcc.a, because libgcc.a
is not compiled with -fPIC. Hence we need to have the missing
symbols in the Perl executable.
This hack includes the whole libgcc.a in the Perl executable, and
links with c++ so that some mandatory symbols such as __pure_virtual
are also included. It should go away with GCC-3.0, or if we make a
libgcc.so on day.
kcah
hack gcc-2.95.3 -O* bug
mdate 12 Feb 2002
who mrauch
port i386
file devel/pth/Makefile : 1.37 : 20 : 22
descr
OpenOffice segfaults after some time in the pthread library with a
completely thrashed stack. Removing optimization when building
pth (-O0) avoids this problem.
kcah
hack binutils-2.11.2 ld versioned symbols bug
cdate 26 Feb 2002
who mrauch
file misc/openoffice/patches/patch-dj
file misc/openoffice/patches/patch-dk
descr Using versioned symbols the special symbol _etext can end up
in the shared library with a junk value for the version string
instead of "0" for no version. Sometimes it is sufficient to
reorder the -l flags on the link line but the general hack is to
disable versioned symbols.
kcah
hack sparc64-kth-krb
cdate 29 Mar 2002
who hubertf
file security/kth-krb4/Makefile
descr This package hangs when compiling one of the files with the
compiler that comes with 1.5ZC. The compiler needs to be killed
manually - the package is marked as interactive on sparc64 for
that reason.
kcah
hack cc -O* bug
mdate 04 Jun 2002
who cjep
port arm
file net/ucspi-tcp/Makefile : 1.11 :
descr
some compilations go into infinite loop if optimisation enabled in
gcc-2.95.3 20010315 (release) (NetBSD nb2) as shipped with
a releng snapshot (May 31st) of NetBSD-1.6_BETA1. See also abs's
entry above. First hang at:
( ( ./compile tryulong32.c && ./load tryulong32 && ./tryulong32 ) \
>/dev/null 2>&1 && cat uint32.h2 || cat uint32.h1 ) > uint32.h
kcah
hack cc -O* bug
mdate 04 Jun 2002
who cjep
port arm
file net/djbdns/Makefile : 1.19 :
descr
various files go into infinite loop if optimisation enabled in
gcc-2.95.3 20010315 (release) (NetBSD nb2) as shipped with
a releng snapshot (May 31st) of NetBSD-1.6_BETA1. See also abs's
entry above. First hang as ucspi-tcp.
kcah
hack cc -O* bug
mdate 06 Jun 2002
who cjep
port arm
file emulators/stella/Makefile : 1.5 :
descr
Usual arm optimisation problem. The first problem is at:
c++ -c -O2 -fno-rtti -I. -I../emucore -I../emucore/m6502/src \
-I../emucore/m6502/src/bspf/src -I../ui/x11 -I../ui/sound \
-I/usr/X11R6/include -DBSPF_UNIX ../emucore/m6502/src/M6502.cxx
kcah
hack cc -O* bug
mdate 07 Jun 2002
who cjep
port arm
file databases/cdb/Makefile : 1.3 :
descr
Usual arm optimisation problem. The first problem occurs around
( cat warn-auto.sh; echo exec "`head -1 conf-cc`" '-c ${1+"$@"}' \
) > compile
chmod 755 compile
kcah
hack gcc 2.95.3 -O2 bug
mdate 22 Jun 2002
who jlam
port sparc64
file x11/openmotif/patches/patch-ap : 1.2 : 209
pr 15477
descr
With -O2 optimization, a "if {} else if {} else {}" C statement
isn't converted into the correct code.
kcah
hack cc -O* bug
mdate 28 Nov 2002
who agc
port arm
file emulators/simh/Makefile : 1.3 :
descr
Usual arm optimisation problem. The first problem occurs around
compilation of altairz80
kcah
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