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[src/trunk]: src/doc Separate by port, and remove the m68k hack.
details: https://anonhg.NetBSD.org/src/rev/6a988d0de96d
branches: trunk
changeset: 554558:6a988d0de96d
user: mycroft <mycroft%NetBSD.org@localhost>
date: Wed Oct 29 21:31:33 2003 +0000
description:
Separate by port, and remove the m68k hack.
diffstat:
doc/HACKS | 363 ++++++++++++++++++++++++++++++-------------------------------
1 files changed, 178 insertions(+), 185 deletions(-)
diffs (truncated from 411 to 300 lines):
diff -r 99d2dc037ada -r 6a988d0de96d doc/HACKS
--- a/doc/HACKS Wed Oct 29 21:29:27 2003 +0000
+++ b/doc/HACKS Wed Oct 29 21:31:33 2003 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.20 2003/10/28 20:12:00 skrll Exp $
+# $NetBSD: HACKS,v 1.21 2003/10/29 21:31:33 mycroft Exp $
#
# This file is intended to document workarounds for currently unsolved
# (mostly) compiler bugs.
@@ -27,35 +27,6 @@
#
# this is a comment.
-hack gcc 2.95/vax cannot handle __builtin_ffs()
-cdate Fri Aug 23 21:31:15 CEST 2002
-who ragge
-port vax
-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 binutil-2.11-sparc64-pltrela
-mdate 14 Aug 2001
-who eeh
-port sparc64
-file libexec/ld.elf_so/reloc.c: 1.41 : 597 : 619
-descr
- The first for PLT entries are reserved. There is some disagreement
- whether they should have associated relocation entries. Both the
- SPARC 32-bit and 64-bit ELF specifications say that they should have
- relocation entries, but the 32-bit SPARC binutils do not generate
- them, and now the 64-bit SPARC binutils have stopped generating them
- too.
-
- To provide binary compatibility, we will check the first entry, if it
- is reserved it should not be of the type JMP_SLOT. If it is JMP_SLOT,
- then the 4 reserved entries were not generated and our index is 4
- entries too far, so we frob the rela pointer.
-kcah
-
hack netstat ieee1394 address printing.
mdate 14 Nov 2000
who matt
@@ -79,35 +50,6 @@
exported termcap, this would cause those modifications to be ignored.
kcah
-hack gcc-sh3-sed
-mdate 23 Apr 2002
-who thorpej
-file usr.bin/sed/Makefile : 1.9 : 9 : 13
-descr
- The in-tree GCC 2.95.3-based compiler ICEs when building
- with optimization for SuperH. Hack is to biuld with -O0.
-kcah
-
-hack gcc-unsigned-compare
-cdate 09 Mar 2002
-mdate 18 Mar 2002
-who bjh21
-port arm
-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 wi-at-big-endian-bus
cdate 15 Mar 2002
who martin
@@ -118,57 +60,9 @@
tag.
kcah
-hack gcc-vax-libbz2
-mdate 27 Jun 2002
-who thorpej
-port vax
-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 egcs-pc532-ip6_mroute
-cdate 09 Jul 2002
-who simonb
-port pc532
-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 SuperH SH5 Toolchain Bugs
-cdate 11 Jul 2002
-who scw
-port sh5
-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 vax Toolchain bug
-cdate 28 Mar 2003
-who he
-port vax
-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 specific knowledge of colours in curses code
cdate Sun Apr 6 11:05:24 BST 2003
who jdc
-port all
file lib/libcurses/color.c : r1.24
descr
Swap red/blue and yellow/cyan colours for COLOR_OTHER.
@@ -177,18 +71,6 @@
http://mail-index.NetBSD.org/tech-userlevel/2003/04/06/0000.html
kcah
-hack SuperH SH5 Toolchain Bugs
-cdate 17 May 2003
-who scw
-port sh5
-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 Compensation for differing types of LINUX_USRSTACK and USRSTACK
cdate 21 Aug 2003
who he
@@ -202,75 +84,186 @@
symbols should be consistent across all ports.
kcah
-hack gcc 3.3.x bug
-cdate Sun Oct 26 01:50:16 UTC 2003
-who lukem
-port MACHINE_ARCH == arm
-file usr.bin/newsyslog/newsyslog.c
-pr 22986 23002 23217
-descr
- newsyslog fails with
- newsyslog: config line 7: bad flags
- solved when compiled with -fno-gcse-lm
-kcah
+
+port vax
+
+ 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 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
+
+
+port sparc64
-hack gcc-pc532-duffs_device
-cdate Mon Oct 27 07:23:05 UTC 2003
-who simonb
-port pc532
-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 binutil-2.11-sparc64-pltrela
+ mdate 14 Aug 2001
+ who eeh
+ file libexec/ld.elf_so/arch/sparc64/mdreloc.c
+ descr
+ The first for PLT entries are reserved. There is some
+ disagreement whether they should have associated relocation
+ entries. Both the SPARC 32-bit and 64-bit ELF specifications
+ say that they should have relocation entries, but the 32-bit
+ SPARC binutils do not generate them, and now the 64-bit SPARC
+ binutils have stopped generating them too.
+
+ To provide binary compatibility, we will check the first entry,
+ if it is reserved it should not be of the type JMP_SLOT. If it
+ is JMP_SLOT, then the 4 reserved entries were not generated and
+ our index is 4 entries too far, so we frob the rela pointer.
+ 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.x bug
+ cdate Sun Oct 26 01:50:16 UTC 2003
+ who lukem
+ file usr.bin/newsyslog/newsyslog.c
+ pr 22986 23002 23217
+ descr
+ newsyslog fails with
+ newsyslog: config line 7: bad flags
+ solved when compiled with -fno-gcse-lm
+ kcah
-hack gcc 3.3.2 m68k {u,}int64_t uninitialized bug
-cdate Tue Oct 28 02:46:46 CET 2003
-who cl
-port MACHINE_ARCH == m68k
-file sys/dev/scsipi/sd.c : 1.212 : 686
-file sys/dev/ata/wd.c : 1.265 : 483
-file sys/nfs/nfs_serv.c : 1.84 : 3290
-file sys/conf/Makefile.kern.inc : 1.39
-descr
- gcc incorrectly reports {u,}int64_t variables as used uninitialized.
- Work around by adding explicit initializers.
- gcc bug report at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12792
- Worked around by disabling uninitialized warnings for m68k.
-kcah
+ hack gcc 3.3.2/arm sys/kern/uipc_socket.c
+ cdate Tue Oct 28 18:02:16 GMT 2003
+ who skrll
+ file sys/conf/arm/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
+
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