4fa11947d6
It's compatibilty code for the changing definition of the first four PLT entries and is very likely never going to be removed.
759 lines
23 KiB
Plaintext
759 lines
23 KiB
Plaintext
# $NetBSD: HACKS,v 1.86 2006/09/28 21:01:21 skrll 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 netstat ieee1394 address printing.
|
|
mdate 14 Nov 2000
|
|
who matt
|
|
file lib/libc/net/getnameinfo.c : 1.32 : 497 : 503
|
|
descr
|
|
Because the current implementation of IP over IEEE1394, the
|
|
fw device address contains more than just the IEEE1394 EUI-64.
|
|
So when printing out IEEE1394 addresses, ignore the extra stuff.
|
|
kcah
|
|
|
|
hack xterm vs. libterm
|
|
mdate 01 Aug 2000
|
|
who jdc
|
|
file xsrc/xc/programs/xterm/main.c : 1.2 : 3609 : 3614
|
|
pr 10383
|
|
descr
|
|
In order to extend the termcap string over 1023 bytes, a ZZ entry was
|
|
introduced to point to a memory location containing the full entry.
|
|
Without this hack, xterm will export a termcap containing the ZZ
|
|
entry, which will then be ignored by libterm. As xterm modifies the
|
|
exported termcap, this would cause those modifications to be ignored.
|
|
kcah
|
|
|
|
hack wi-at-big-endian-bus
|
|
cdate 15 Mar 2002
|
|
who martin
|
|
file dev/ic/wireg.h
|
|
descr Add an option to access the underlying bus in big endian byte order
|
|
to work around deficiencies in bus_space_{read,write}_* macros.
|
|
Those don't allow the implementation of a proper pcmcia bus space
|
|
tag.
|
|
kcah
|
|
|
|
hack specific knowledge of colours in curses code
|
|
cdate Sun Apr 6 11:05:24 BST 2003
|
|
who jdc
|
|
file lib/libcurses/color.c : r1.24
|
|
descr
|
|
Swap red/blue and yellow/cyan colours for COLOR_OTHER.
|
|
Fix is to enhance libtermcap to understand terminfo-style % sequences.
|
|
See also:
|
|
http://mail-index.NetBSD.org/tech-userlevel/2003/04/06/0000.html
|
|
kcah
|
|
|
|
hack Compensation for differing types of LINUX_USRSTACK and USRSTACK
|
|
cdate 21 Aug 2003
|
|
who he
|
|
file sys/miscfs/procfs/procfs_linux.c : 1.14
|
|
descr
|
|
Not all ports have LINUX_USRSTACK and/or USRSTACK defined as
|
|
literals/constants, but refer to variables of a type which is
|
|
not "unsigned long", causing compilation of procfs_linux.c to
|
|
fail with "makes integer from pointer without a cast". This
|
|
is observed on e.g. the sun3 port. Ideally the "types" for
|
|
symbols should be consistent across all ports.
|
|
kcah
|
|
|
|
hack GCC2 isn't C99
|
|
cdate 5 December 2003
|
|
who mrg
|
|
file gnu/dist/binutils/ld/ldlex.c: r1.2
|
|
descr
|
|
ldlex.c is generated from ldlex.l and we get macro redefinition
|
|
errors from it if __STDC_VERSION__ is not C99 compliant. This
|
|
hack forces NetBSD 1.6 and later systems to also include <stdint.h>
|
|
to get the relevant definitions. This hack should be backed out
|
|
when all platforms have switched away from GCC2.
|
|
kcah
|
|
|
|
hack gcc-strict-aliasing
|
|
cdate 6 August 2004
|
|
who junyoung
|
|
pr 26516
|
|
file src/usr.sbin/racoon/racoon/Makefile : 1.21
|
|
descr
|
|
GCC issues a warning "dereferencing type-punned pointer will break
|
|
strict-aliasing rules" when compiling
|
|
crypto/dist/kame/racoon/crypto/openssl.c with -O[23s]. Note that this
|
|
is due to use of type casting in a non-standard way in the code and
|
|
not a compiler bug. Once a new release of KAME with a proper fix
|
|
applied is imported this should be backed out.
|
|
kcah
|
|
|
|
hack gcc 3.3.3 wrong uninitialised variable
|
|
mdate 12 May 2006
|
|
who he
|
|
file usr.bin/msgc/msg_sys.def : 1.33-1.34
|
|
file distrib/utils/sysinst/aout2elf.c : 1.11
|
|
descr
|
|
Gcc 3.3.3 gets some -Wuninitialized warnings wrong. This is
|
|
just one of many in the tree, marked with
|
|
/* XXX -Wuninitialized [arch] */
|
|
in the source.
|
|
kcah
|
|
|
|
hack gcc4 wrong uninitialized variable
|
|
mdate 10 May 2006
|
|
who mrg
|
|
file bin/ksh/eval.c : 1.6
|
|
file bin/sh/histedit.c : 1.39
|
|
file bin/sh/parser.c : 1.60
|
|
file bin/systrace/systrace.c : 1.33
|
|
file crypto/dist/heimdal/kdc/524.c : 1.10
|
|
file crypto/dist/ssh/sftp.c : 1.20
|
|
file crypto/dist/ssh/ssh-keysign.c : 1.11
|
|
file dist/ipf/lib/hostname.c : 1.2
|
|
file dist/ipf/tools/ipmon.c : 1.8
|
|
file dist/ntp/ntpd/ntp_request.c : 1.4
|
|
file dist/ntp/ntpd/refclock_shm.c : 1.4
|
|
file dist/ntp/sntp/timing.c : 1.3
|
|
file dist/pppd/pppstats/pppstats.c : 1.3
|
|
file dist/smbfs/lib/smb/rap.c : 1.6
|
|
file dist/tcpdump/print-zephyr.c : 1.5
|
|
file distrib/utils/sysinst/aout2elf.c : 1.12
|
|
file gnu/libexec/uucp/uucico/uucico.c : 1.6
|
|
file lib/libc/citrus/citrus_csmapper.c : 1.6
|
|
file lib/libc/citrus/citrus_pivot_factory.c : 1.5
|
|
file lib/libc/inet/inet_cidr_ntop.c : 1.3
|
|
file lib/libc/inet/inet_ntop.c : 1.3
|
|
file lib/libc/stdio/vfwprintf.c : 1.8
|
|
file libexec/ld.elf_so/arch/m68k/mdreloc.c : 1.20
|
|
file libexec/ld.elf_so/arch/powerpc/ppc_reloc.c : 1.40
|
|
file libexec/ld.elf_so/arch/sh3/mdreloc.c : 1.22
|
|
file libexec/ld.elf_so/arch/sparc/mdreloc.c : 1.39
|
|
file libexec/ld.elf_so/arch/sparc64/mdreloc.c : 1.39
|
|
file libexec/ld.elf_so/arch/vax/mdreloc.c : 1.21
|
|
file libexec/ld.elf_so/arch/x86_64/mdreloc.c : 1.27
|
|
file sbin/fsck_ext2fs/dir.c : 1.19
|
|
file sbin/routed/rtquery/rtquery.c : 1.18
|
|
file sys/arch/amd64/amd64/pmap.c : 1.26
|
|
file sys/arch/i386/pci/piixpcib.c : 1.4
|
|
file sys/arch/m68k/m68k/pmap_motorola.c : 1.4
|
|
file sys/crypto/cast128/cast128.c : 1.9
|
|
file sys/ddb/db_command.c : 1.86
|
|
file sys/dev/cardbus/cardbus_map.c : 1.21
|
|
file sys/dev/fss.c : 1.25
|
|
file sys/dev/ic/igsfb.c : 1.39
|
|
file sys/dev/ic/mb86950.c : 1.5
|
|
file sys/dev/ic/midway.c : 1.71
|
|
file sys/dev/kttcp.c : 1.18
|
|
file sys/dev/rasops/rasops_bitops.h : 1.9
|
|
file sys/dev/pci/cmpci.c : 1.31
|
|
file sys/dev/pci/machfb.c : 1.45
|
|
file sys/dev/usb/ohci.c : 1.174
|
|
file sys/dev/usb/uhci.c : 1.196
|
|
file sys/dev/rasops/rasops_bitops.h : 1.9
|
|
file sys/dist/ipf/netinet/ip_nat.c : 1.10
|
|
file sys/dist/ipf/netinet/ip_rpcb_pxy.c : 1.8
|
|
file sys/dist/pf/net/pf.c : 1.22
|
|
file sys/fs/udf/udf_vnops.c : 1.4
|
|
file sys/kern/kern_sig.c : 1.219
|
|
file sys/kern/tty.c : 1.181
|
|
file sys/net/bpf.c : 1.116
|
|
file sys/net/zlib.c : 1.26
|
|
file sys/netccitt/if_x25subr.c : 1.37
|
|
file sys/netinet/in.c : 1.107
|
|
file sys/netsmb/smb_smb.c : 1.27
|
|
file sys/netsmb/smb_trantcp.c : 1.22
|
|
file sys/nfs/nfs_serv.c : 1.108
|
|
file sys/nfs/nfs_socket.c : 1.129
|
|
file sys/nfs/nfs_syscalls.c : 1.91
|
|
file sys/ufs/lfs/lfs_vfsops.c : 1.207 [also (char *)]
|
|
file usr.bin/ftp/ftp.c : 1.140
|
|
file usr.bin/find/function.c : 1.54
|
|
file usr.bin/mail/tty.c : 1.20
|
|
file usr.bin/nl/nl.c : 1.7
|
|
file usr.bin/systat/keyboard.c : 1.23
|
|
file usr.bin/usbhidctl/usbhid.c : 1.29
|
|
file usr.bin/vi/cl/cl_read.c : 1.5
|
|
file usr.bin/vi/ex/ex_cscope.c : 1.12
|
|
file usr.bin/vi/ex/ex_tag.c : 1.19
|
|
file usr.bin/vi/vi/v_txt.c : 1.15
|
|
file usr.sbin/altq/altqstat/qdisc_rio.c : 1.4
|
|
file usr.sbin/cron/do_command.c : 1.19
|
|
file usr.sbin/timed/timed/slave.c : 1.15
|
|
descr
|
|
GCC 4.1 gets many uninitialised variable warnings wrong. We should
|
|
really audit all the old hacks like this when older compilers are
|
|
removed from the tree, as many are probably no longer required.
|
|
The problem is that it does not recognize initialization via function
|
|
call pointer. I.e.
|
|
int p;
|
|
foo(&p);
|
|
does not mark p as initialized.
|
|
kcah
|
|
|
|
hack gcc4 pointer sign and strict aliasing problems
|
|
mdate 10 May 2006
|
|
who mrg
|
|
file bin/ed/Makefile : 1.33
|
|
file bin/systrace/Makefile : 1.12
|
|
file distrib/utils/sysinst/Makefile.inc : 1.44
|
|
file games/bcd/Makefile : 1.5
|
|
file games/dab/Makefile : 1.5
|
|
file games/larn/Makefile : 1.17
|
|
file games/pom/Makefile : 1.5
|
|
file lib/libasn1/Makefile : 1.26
|
|
file lib/libcrypt/Makefile : 1.17
|
|
file lib/libgssapi/Makefile : 1.16
|
|
file lib/libhdb/Makefile : 1.20
|
|
file lib/libkadm5clnt/Makefile : 1.21
|
|
file lib/libkadm5srv/Makefile : 1.25
|
|
file lib/libkrb5/Makefile : 1.35
|
|
file lib/libssh/Makefile : 1.6
|
|
file lib/libtelnet/Makefile : 1.26
|
|
file libexec/getty/Makefile : 1.14
|
|
file libexec/kadmind/Makefile : 1.19
|
|
file libexec/kpasswdd/Makefile : 1.14
|
|
file sbin/atactl/Makefile : 1.3
|
|
file sbin/cgdconfig/Makefile : 1.7
|
|
file sbin/clri/Makefile : 1.13
|
|
file sbin/dkctl/Makefile : 1.4
|
|
file sbin/dump/Makefile : 1.33
|
|
file sbin/fdisk/Makefile : 1.35
|
|
file sbin/fsck_ext2fs/Makefile : 1.11
|
|
file sbin/fsck_ffs/Makefile : 1.29
|
|
file sbin/fsdb/Makefile : 1.18
|
|
file sbin/mount_smbfs/Makefile : 1.4
|
|
file sbin/newfs/Makefile : 1.30
|
|
file sbin/newfs_sysvbfs/Makefile : 1.2
|
|
file sbin/restore/Makefile : 1.23
|
|
file sbin/veriexecctl/Makefile : 1.11
|
|
file sys/lib/libsa/Makefile : 1.59
|
|
file sys/arch/evbarm/adi_brh/brh_machdep.c : 1.24
|
|
file usr.bin/awk/Makefile : 1.9
|
|
file usr.bin/crontab/Makefile : 1.24
|
|
file usr.bin/ctags/Makefile : 1.8
|
|
file usr.bin/gzip/Makefile : 1.10
|
|
file usr.bin/ssh/sftp/Makefile : 1.10
|
|
file usr.bin/ssh/ssh/Makefile : 1.25
|
|
file usr.bin/vi/build/Makefile : 1.26
|
|
file usr.bin/telnet/Makefile : 1.40
|
|
file usr.bin/tn3270/tn3270/Makefile : 1.36
|
|
file usr.bin/tr/Makefile : 1.4
|
|
file usr.sbin/amd/amd/Makefile : 1.27
|
|
file usr.sbin/amd/amq/Makefile : 1.14
|
|
file usr.sbin/amd/libamu/Makefile : 1.20
|
|
file usr.sbin/amd/pawd/Makefile : 1.5
|
|
file usr.sbin/bind/Makefile.inc : 1.22
|
|
file usr.sbin/bind/libdns/Makefile : 1.3
|
|
file usr.sbin/bind/named/Makefile : 1.17
|
|
file usr.sbin/bootp/bootptest/Makefile : 1.2
|
|
file usr.sbin/chrtbl/Makefile : 1.6
|
|
file usr.sbin/cron/Makefile : 1.12
|
|
file usr.sbin/dhcp/Makefile.inc : 1.20
|
|
file usr.sbin/dumplfs/Makefile : 1.11
|
|
file usr.sbin/hprop/Makefile : 1.13
|
|
file usr.sbin/installboot/Makefile : 1.35
|
|
file usr.sbin/ipf/ipftest/Makefile : 1.32
|
|
file usr.sbin/isdn/isdnd/Makefile : 1.6
|
|
file usr.sbin/isdn/isdnmonitor/Makefile : 1.3
|
|
file usr.sbin/isdn/isdntel/Makefile : 1.2
|
|
file usr.sbin/isdn/isdntrace/Makefile : 126
|
|
file usr.sbin/mopd/common/Makefile : 1.10
|
|
file usr.sbin/mopd/mopd/Makefile : 1.9
|
|
file usr.sbin/mopd/mopprobe/Makefile : 1.7
|
|
file usr.sbin/makefs/Makefile : 1.17
|
|
file usr.sbin/mscdlabel/Makefile : 1.5
|
|
file usr.sbin/pkg_install/add/Makefile : 1.7
|
|
file usr.sbin/pkg_install/create/Makefile : 1.5
|
|
file usr.sbin/pkg_install/lib/Makefile : 1.28
|
|
file usr.sbin/ntp/ntpd/Makefile : 1.10/1.11
|
|
file usr.sbin/ntp/ntptime/Makefile : 1.4/1.5
|
|
file usr.sbin/pppd/Makefile.inc : 1.3
|
|
file usr.sbin/pppd/pppd/Makefile : 1.38
|
|
file usr.sbin/rarpd/Makefile : 1.10
|
|
file usr.sbin/rbootd/Makefile : 1.10
|
|
file usr.sbin/rpc.pcnfsd/Makefile : 1.17
|
|
file usr.sbin/rtadvd/Makefile : 1.9
|
|
file usr.sbin/tcpdump/Makefile : 1.42
|
|
file usr.sbin/wiconfig/Makefile : 1.3
|
|
descr
|
|
GCC 4.1 warns on pointer sign comparision/assignments and lots of
|
|
code does not conform. For now we use -Wno-pointer-sign and
|
|
-fno-strict-aliasing.
|
|
kcah
|
|
|
|
port vax
|
|
|
|
hack gcc4/vax compiler crash
|
|
cdate Fri Jun 30 22:39:12 PDT 2006
|
|
who mrg
|
|
file bin/csh/Makefile : 1.27
|
|
file lib/i18n_module/UTF7/Makefile : 1.2
|
|
descr
|
|
GCC4 on vax crashes. -O0 stops it happening so far...
|
|
kcah
|
|
|
|
hack gcc 2.95/vax doesn't like abort being used as function pointer
|
|
cdate Tue Dec 13 05:54:50 GMT 2005
|
|
who jmc
|
|
file lib/libc/rpc/svc_vc.c 1.15
|
|
descr
|
|
Provide a local definition for abort which doesn't include
|
|
the noreturn attribute which trips up gcc 2.95 on vax.
|
|
kcah
|
|
|
|
hack gcc 2.95/vax doesn't have stdbool.h and gettext needs it
|
|
cdate Mon May 9 12:16:22 CDT 2005
|
|
who jmc
|
|
file gnu/usr.bin/gettext/Makefile.inc.prog 1.5
|
|
gnu/usr.bin/gettext/libgrep/Makefile 1.3
|
|
gnu/usr.bin/gettext/libnlspr/Makefile 1.5
|
|
gnu/usr.bin/gettext/libnlsut/Makefile 1.3
|
|
descr
|
|
The latest gettext assumes a C99 environment or at least
|
|
configure checks to work around this. As we don't use configure
|
|
provide a stdbool.h for vax builds locally in directories from
|
|
the template provided by the gettext code.
|
|
kcah
|
|
|
|
hack gcc 2.95/vax can't handle __used__
|
|
cdate Fri May 6 14:30:53 CDT 2005
|
|
who jmc
|
|
file src/lib/libc/gmon/mcount.c 1.17
|
|
src/usr.bin/config/main.c 1.11
|
|
descr
|
|
Recent changes to mark this as __used__ to prevent optimization
|
|
away on sparc64 don't work on 2.95 vax. Ifdef'd back in the
|
|
old __unused__ if on vax.
|
|
kcah
|
|
|
|
hack gcc 2.95/vax cannot handle __builtin_ffs()
|
|
cdate Fri Aug 23 21:31:15 CEST 2002
|
|
who ragge
|
|
file sys/lib/libkern/libkern.h : 1.42
|
|
descr
|
|
__builtin_ffs() is ifdef'd away if __vax__. Matt Thomas has
|
|
added this feature to GCC 3 so it can be removed when switching.
|
|
kcah
|
|
|
|
hack gcc-vax-libbz2
|
|
mdate 27 Jun 2002
|
|
who thorpej
|
|
file lib/libbz2/Makefile
|
|
descr
|
|
libbz2 is mis-compiled with optimization with GCC 2.95.3
|
|
on VAX. -O0 works around this problem.
|
|
kcah
|
|
|
|
hack gawk
|
|
mdate 8 Nov 2003
|
|
who ragge
|
|
file gnu/usr.bin/gawk/Makefile
|
|
descr
|
|
gawk is mis-compiled with optimization with GCC 2.95.3
|
|
on VAX. -O0 works around this problem.
|
|
kcah
|
|
|
|
hack vax Toolchain bug
|
|
cdate 28 Mar 2003
|
|
who he
|
|
file sys/arch/vax/vax/intvec.S : 1.5
|
|
descr
|
|
Workaround for PR toolchain/20924. The assembler apparently
|
|
tries to range-check byte offsets when it doesn't have
|
|
sufficient information to make that decision.
|
|
Workaround uses `brw' instead of `brb' instruction.
|
|
kcah
|
|
|
|
hack vax gcc 2.95.3 -Wuninitialized workarounds
|
|
cdate 6 Nov 2003
|
|
who he
|
|
file sys/dev/bi/if_ni.c : 1.22
|
|
file sys/arch/vax/vax/ctu.c : 1.20
|
|
descr
|
|
Workaround for gcc 2.95.3 failing to detect that certain
|
|
variables will be initialized; so that this code compiles
|
|
with -Wuninitialized. Should be reviewed and possibly
|
|
reverted when gcc 3.3.2 is ready for vax.
|
|
kcah
|
|
|
|
hack vax gcc 2.95.3 structure initialization
|
|
cdat 13 May 2004
|
|
who cl
|
|
file sys/miscfs/kernfs/kernfs_vnops.c : 1.104
|
|
descr
|
|
Workaround for gcc 2.95.3 failing to initialize structures
|
|
and/or unions inside structures using nested designators.
|
|
Should be reverted when gcc >=3.3.3 is ready for vax.
|
|
kcah
|
|
|
|
hack vax gcc 2.95.3 needs -I. to build nslexer.c
|
|
cdat 6 Jun 2004
|
|
who mhitch
|
|
file lib/libc/arch/vax/Makefile.inc : 1.6
|
|
descr
|
|
It appears necessary to add -I. to CPPFLAGS when building
|
|
nslesxer.c. This may be caused by gcc 2.95.3 being used.
|
|
Should be reverted when a newer gcc is ready for vax.
|
|
kcah
|
|
|
|
hack vax gcc 2.95.3 doesn't understand "-std=c99"
|
|
cdat 5 April 2005
|
|
who tron
|
|
file src/share/mk/bsd.sys.mk
|
|
descr
|
|
We cannot use "-std=c99" for compiler warning level 4 and above
|
|
because gcc 2.95.3 doesn't support that option.
|
|
kcah
|
|
|
|
hack declare boolean_t in two IPF user-mode programs
|
|
cdate Tue Mar 7 19:19:20 CET 2006
|
|
who he
|
|
file dist/ipf/ipsend/iptests.c : 1.8
|
|
dist/ipf/ipsend/sock.c : 1.7
|
|
descr
|
|
The IPF user-mode programs ipsend and iptest first
|
|
include <sys/types.h> without _KERNEL defined, and
|
|
later include <sys/file.h> with _KERNEL defined.
|
|
This causes a build failure when building for vax,
|
|
since <sys/device.h> ends up being included without
|
|
bollean_t being defined by <sys/types.h>.
|
|
Build failure and further details documented in
|
|
PR#32907.
|
|
kcah
|
|
|
|
port arm
|
|
|
|
hack gcc-unsigned-compare
|
|
cdate 09 Mar 2002
|
|
mdate 18 Mar 2002
|
|
who bjh21
|
|
file dist/bind/lib/nameser/ns_parse.c : 1.3
|
|
file dist/dhcp/minires/ns_parse.c : 1.3
|
|
file dist/dhcp/omapip/result.c : 1.2
|
|
file dist/dhcp/server/failover.c : 1.3
|
|
file gnu/dist/gawk/eval.c : 1.4
|
|
file gnu/dist/toolchain/bfd/bfd.c : 1.2
|
|
file gnu/dist/toolchain/bfd/format.c : 1.2
|
|
file gnu/dist/toolchain/gdb/target.c : 1.2
|
|
file sys/kern/vfs_subr.c : 1.172
|
|
descr When checking that a potentially-unsigned enum is >= 0, assign
|
|
it to an int first. This is necessary to avoid "comparison is
|
|
always true" warnings with -fshort-enums. Casting to an int
|
|
really should be enough, but turns out not to be.
|
|
kcah
|
|
|
|
hack gcc 3.3.2/arm sys/kern/uipc_socket.c
|
|
cdate Tue Oct 28 18:02:16 GMT 2003
|
|
who skrll
|
|
pr 23044
|
|
file sys/arch/arm/conf/Makefile.arm : 1.19
|
|
descr
|
|
Performing a build.sh tools on a CATS with NFS mounted
|
|
obj and src directories results in "panic: receive 1"
|
|
The hack is to compile sys/kern/uipc_socket.c with
|
|
-fno-strict-aliasing
|
|
kcah
|
|
|
|
|
|
port pc532
|
|
|
|
hack egcs-pc532-ip6_mroute
|
|
cdate 09 Jul 2002
|
|
who simonb
|
|
file sys/arch/pc532/conf/Makefile.pc532 : 1.70
|
|
file sys/arch/pc532/conf/files.pc532 : 1.47
|
|
descr
|
|
egcs 1.1.2 gets an "internal error--insn does not satisfy its
|
|
constraints" error compiling ip6_mroute.c with -O2 or greater.
|
|
-O1 works around this problem.
|
|
kcah
|
|
|
|
hack gcc-pc532-duffs_device
|
|
cdate Mon Oct 27 07:23:05 UTC 2003
|
|
who simonb
|
|
file sys/arch/pc532/conf/Makefile.pc532 : 1.71
|
|
file sys/arch/pc532/conf/files.pc532 : 1.52
|
|
pr GCC PR optimization/5230
|
|
descr
|
|
gcc incorrectly gives an "unreachable code at beginning of
|
|
switch statement" for a Duff's device construct in
|
|
arch/pc532/dev/ncr.c. There is no way to disable just this
|
|
warning, so -Wno-error is turned on for this file.
|
|
kcah
|
|
|
|
hack gcc332-cppmacro-ice
|
|
cdate Sun Dec 7 12:48:33 UTC 2003
|
|
who simonb
|
|
file gnu/usr.bin/gcc3/libcpp/Makefile : 1.2
|
|
descr
|
|
gcc 3.3.2 gets an ICE when compiling cppmacro.c with -O2.
|
|
The hack is to use -O1 for this file. Fixed in gcc
|
|
-current mainline, unable to work out where the fix is
|
|
right now.
|
|
kcah
|
|
|
|
|
|
port sh3
|
|
|
|
hack gcc4-sh3-bz2
|
|
mdate 20 May 2006
|
|
who mrg
|
|
file lib/libbz2/Makefile : 1.10
|
|
descr
|
|
The in-tree GCC 4.1-based compiler generated too-far
|
|
pc-relative addresses. Hack is to build with -O0.
|
|
kcah
|
|
|
|
|
|
port sh5
|
|
|
|
hack SuperH SH5 Toolchain Bugs
|
|
cdate 11 Jul 2002
|
|
who scw
|
|
file usr.sbin/ndbootd/ndbootd.c : 1.6
|
|
file usr.sbin/traceroute/traceroute.c : 1.48
|
|
descr
|
|
The SuperH SH5 toolchain (2.97-sh5-010522) gets an internal
|
|
compiler error when assigning a bit-wise inverted value
|
|
under some circumstances.
|
|
Work around it by splitting the statement into two.
|
|
kcah
|
|
|
|
hack SuperH SH5 Toolchain Bugs
|
|
cdate 17 May 2003
|
|
who scw
|
|
file lib/libpthread/pthread_lock.c : 1.7
|
|
descr
|
|
The SuperH SH5 toolchain generates incorrect PIC code when
|
|
faced with a symbol which is declared extern, but has local
|
|
scope due to being defined within an asm() statement (without
|
|
being declared .globl in that statement). Work around it by
|
|
adding the .globl.
|
|
kcah
|
|
|
|
hack gcc 3.3.2 on sh5 - ICE compiling reload1.c at -O2
|
|
cdate Sun Dec 7 19:44:05 GMT 2003
|
|
who scw
|
|
file gnu/usr.bin/gcc3/backend/Makefile : 1.13
|
|
descr
|
|
Gcc3 for sh5 gets an ICE compiling reload1.c at -O2.
|
|
Drop to -O1 for now when building for sh5.
|
|
kcah
|
|
|
|
hack gcc 3.3.2 on sh5 - ICE compiling elf32.c/elf64.c at -O2
|
|
cdate Sun Dec 7 21:10:46 GMT 2003
|
|
who scw
|
|
file gnu/lib/libbfd/Makefile : 1.39
|
|
descr
|
|
Gcc3 for sh5 gets an ICE compiling libbfd's elf32.c
|
|
and elf64.c at -O2.
|
|
Drop to -O1 for now when building for sh5.
|
|
kcah
|
|
|
|
|
|
hack gcc 3.3.2 on sh5 - fatal warning compiling function.c
|
|
cdate Sun Dec 7 19:44:05 GMT 2003
|
|
who scw
|
|
file gnu/usr.bin/gcc3/backend/Makefile : 1.13
|
|
descr
|
|
Gcc3 for sh5 issues a warning:
|
|
.../gnu/dist/gcc/gcc/function.c:4742: warning: `and' of
|
|
mutually exclusive equal-tests is always 0.
|
|
This causes the build to fail because of -Werror.
|
|
Work-around by defining NOGCCERROR when building for sh5.
|
|
kcah
|
|
|
|
hack gcc 3.3.3 on sh5 - ICE compiling rbtdb.c and rbtdb64.c
|
|
cdate Thu Nov 11 00:35:33 UTC 2004
|
|
who he
|
|
file usr.sbin/bind/libdns/Makefile/1.2
|
|
descr
|
|
Gcc3 for sh5 gets an ICE compiling these files at -O2.
|
|
Drop to -O1 for now when building for sh5.
|
|
kcah
|
|
|
|
hack gcc 3.3.3 nb3 on sh5 - ICE compiling bsd-comp.c
|
|
cdate Thu May 25 23:05:20 UTC 2005
|
|
who he
|
|
file sys/lkm/net/bsdcomp/Makefile : 1.3
|
|
descr
|
|
Gcc3 for sh5 gets an ICE compiling this at -O2,
|
|
"could not split insn". Drop to -O1 for sh5.
|
|
kcah
|
|
|
|
hack gcc 3.3.3 nb3 on sh5 - ICE compiling strtod.c
|
|
cdate Tue Jan 31 10:51:52 GMT 2006
|
|
who scw
|
|
file lib/libc/gdtoa/Makefile.inc : 1.2
|
|
descr
|
|
Gcc3 for sh5 gets an ICE compiling this at -O2,
|
|
"could not split insn". Drop to -O1 for sh5.
|
|
kcah
|
|
|
|
port sun2
|
|
|
|
hack gcc 3.3.2/mdsetimage
|
|
cdate Tue Oct 28 18:43:05 EST 2003
|
|
who fredette
|
|
file gnu/usr.sbin/mdsetimage/Makefile : 1.15
|
|
descr
|
|
mdsetimage.c causes cc1 to barf for as-yet unknown reasons.
|
|
this hack uses -O0 to avoid the problem.
|
|
kcah
|
|
|
|
hack gcc 3.3.2/installboot/ffs.c
|
|
cdate Tue Oct 28 18:43:05 EST 2003
|
|
who fredette
|
|
file usr.sbin/installboot/Makefile : 1.26
|
|
descr
|
|
ffs.c causes cc1 to barf for as-yet unknown reasons. this
|
|
hack uses -O0 to avoid the problem.
|
|
kcah
|
|
|
|
hack gcc 4.1.1/fsck_ffs/pass1.c
|
|
cdate Fri Jun 23 10:30:25 PDT 2006
|
|
who mrg
|
|
file sbin/fsck_ffs/Makefile : 1.30
|
|
file sbin/fsdb/Makefile : 1.19
|
|
file sbin/dump_lfs/Makefile : 1.9
|
|
file usr.sbin/ndbootd/Makefile : 1.2
|
|
descr
|
|
pass1.c causes cc1 to barf for as-yet unknown reasons. this
|
|
hack uses -O0 to avoid the problem. (these all seem to be the
|
|
same problem.)
|
|
kcah
|
|
|
|
|
|
port m68000
|
|
|
|
hack gcc 3.3.2/gcc/ra-colorize.c
|
|
cdate Wed Nov 5 11:03:13 EST 2003
|
|
who mrg
|
|
file gnu/usr.bin/gcc3/backend/Makefile : 1.11
|
|
descr
|
|
ra-colorize.c causes a whole spew of unreferenced .L* local
|
|
symbols. using -O0 (or even -O2 reportedly) avoids the problem.
|
|
Note this has been fixed in 3.3.3 at least on m68k,
|
|
but it hasn't been confirmed on sun2/m68000.
|
|
(it's too slow even on emulator and unlikely to build
|
|
toolchains on sun2 with its maximum 4MB RAM)
|
|
kcah
|
|
|
|
port sparc64
|
|
|
|
hack disable optimzations for uvm_bio.c on 32 bit kernels
|
|
cdate Sun Mar 21 14:14:04 MET 2004
|
|
who martin
|
|
file sys/arch/sparc64/conf/Makefile.sparc64 : 1.53-1.54
|
|
file sys/arch/sparc64/conf/files.sparc64 : 1.93
|
|
descr
|
|
The sparc compiler miscompiles uvm_bio.c when using
|
|
any optimization. This results in ubc_release panics.
|
|
kcah
|
|
|
|
port macppc
|
|
|
|
hack remove inline from rotate_{left,right}
|
|
cdate Tue Feb 22 13:43:25 EST 2005
|
|
who christos
|
|
file src/dist/bind/lib/dns/rbt.c
|
|
descr
|
|
The macppc gcc-3.3 compiler miscompiles rbt.c when these
|
|
functions are inlined. The error is:
|
|
.* named[368]: rbt.c:1584: INSIST(child != (void *)0) >failed
|
|
.* named[368]: exiting (due to assertion failure)
|
|
This is reportedly fixed in gcc-3.4
|
|
kcah
|
|
|
|
port hppa
|
|
|
|
hack hppa-gcc-3.3.3/grep/dfa.c
|
|
cdate Sun Aug 8 08:34:32 PDT 2004
|
|
who chs
|
|
file gnu/usr.bin/grep/grep/Makefile : 1.4
|
|
descr
|
|
gcc 3.3.3 generates bad code for dfa.c with -O2,
|
|
reduce optimization to -O1 to avoid the bug.
|
|
kcah
|
|
|
|
hack hppa boot-from-disk memory corruption
|
|
cdate Wed May 18 06:56:07 PDT 2005
|
|
who chs
|
|
file src/sys/dev/scsipi/scsipiconf.h : 1.98
|
|
descr
|
|
There is some bug with DMA on hppa that corrupts scsipi_xfer
|
|
structures, but it only shows up when booting from disk.
|
|
For now, we'll add some padding to scsipi_xfer so that
|
|
the corrupted memory is not otherwise used.
|
|
kcah
|
|
|
|
port mips
|
|
|
|
hack mips-shared-linker-load-address
|
|
cdate Fri Oct 7 08:33:10 UTC 2005
|
|
who simonb
|
|
file src/sys/kern/exec_elf32.c : 1.107
|
|
descr
|
|
With COMPAT_16 or previous enabled (which enables
|
|
ELF_INTERP_NON_RELOCATABLE) a recent ld.elf_so will
|
|
load and run at address 0. The check to fix this in
|
|
rev 1.107 only checks the first psection of the ELF
|
|
executable, which may not be loadable. A more correct
|
|
fix is to check the first loadable psection instead of
|
|
just the first psection.
|
|
kcah
|
|
|
|
hack mips-duplicate-ras-end-label
|
|
cdate Sat Sep 2 23:29:42 2006
|
|
who martin
|
|
file src/regres/sys/kern/ras/ras3/Makefile : 1.3
|
|
descr
|
|
Add -fno-reorder-blocks to CFLAGS to avoid duplicate
|
|
labels by duplicated __asm output from RAS_END()
|
|
macro.
|
|
kcah
|
|
|
|
port i386
|
|
|
|
hack minus-Os-broken-machdep-c
|
|
cdate Mon Jul 31 13:09:01 EDT 2006
|
|
who christos
|
|
file src/sys/arch/machdep.c : 1.576
|
|
descr
|
|
gcc-4 miscompiles this file with -Os and the resulting
|
|
kernel resets as reported in PR33725
|
|
kcah
|
|
|
|
hack use volatile intermediate variable to enforce rounding
|
|
cdate Tue Aug 1 22:15:55 MEST 2006
|
|
who drochner
|
|
file src/lib/libm/src/lrintf.c : 1.4
|
|
file src/lib/libm/src/s_rintf.c : 1.8
|
|
descr
|
|
gcc-4 does subsequent operations on "float" values within
|
|
the i387 FPU without rounding the intermediate results
|
|
kcah
|