HACKS revision 1.60
1 # $NetBSD: HACKS,v 1.60 2006/05/11 23:51:06 mrg Exp $ 2 # 3 # This file is intended to document workarounds for currently unsolved 4 # (mostly) compiler bugs. 5 # 6 # Format: 7 # hack title 8 # cdate creation date 9 # mdate mod date 10 # who responsible developer 11 # port ... 12 # affected ports, space separated, if not "all" 13 # file affected file : revision : line from : line to 14 # affected files and revision and line numbers describing hack 15 # multiple lines if necessary. 16 # pr NNNN ... 17 # problem reports this hack works around, if known. Space 18 # separated. 19 # regress src/regress/directory/where/test/found 20 # regression test directories, if available. 21 # descr 22 # insert short informal description (multi-line). (Longer ones 23 # should be in the PR database. More formal descriptions might 24 # be in the regress tree. See above). 25 # kcah 26 # closing bracket. 27 # 28 # this is a comment. 29 30 hack netstat ieee1394 address printing. 31 mdate 14 Nov 2000 32 who matt 33 file lib/libc/net/getnameinfo.c : 1.32 : 497 : 503 34 descr 35 Because the current implementation of IP over IEEE1394, the 36 fw device address contains more than just the IEEE1394 EUI-64. 37 So when printing out IEEE1394 addresses, ignore the extra stuff. 38 kcah 39 40 hack xterm vs. libterm 41 mdate 01 Aug 2000 42 who jdc 43 file xsrc/xc/programs/xterm/main.c : 1.2 : 3609 : 3614 44 pr 10383 45 descr 46 In order to extend the termcap string over 1023 bytes, a ZZ entry was 47 introduced to point to a memory location containing the full entry. 48 Without this hack, xterm will export a termcap containing the ZZ 49 entry, which will then be ignored by libterm. As xterm modifies the 50 exported termcap, this would cause those modifications to be ignored. 51 kcah 52 53 hack wi-at-big-endian-bus 54 cdate 15 Mar 2002 55 who martin 56 file dev/ic/wireg.h 57 descr Add an option to access the underlying bus in big endian byte order 58 to work around deficiencies in bus_space_{read,write}_* macros. 59 Those don't allow the implementation of a proper pcmcia bus space 60 tag. 61 kcah 62 63 hack specific knowledge of colours in curses code 64 cdate Sun Apr 6 11:05:24 BST 2003 65 who jdc 66 file lib/libcurses/color.c : r1.24 67 descr 68 Swap red/blue and yellow/cyan colours for COLOR_OTHER. 69 Fix is to enhance libtermcap to understand terminfo-style % sequences. 70 See also: 71 http://mail-index.NetBSD.org/tech-userlevel/2003/04/06/0000.html 72 kcah 73 74 hack Compensation for differing types of LINUX_USRSTACK and USRSTACK 75 cdate 21 Aug 2003 76 who he 77 file sys/miscfs/procfs/procfs_linux.c : 1.14 78 descr 79 Not all ports have LINUX_USRSTACK and/or USRSTACK defined as 80 literals/constants, but refer to variables of a type which is 81 not "unsigned long", causing compilation of procfs_linux.c to 82 fail with "makes integer from pointer without a cast". This 83 is observed on e.g. the sun3 port. Ideally the "types" for 84 symbols should be consistent across all ports. 85 kcah 86 87 hack GCC2 isn't C99 88 cdate 5 December 2003 89 who mrg 90 file gnu/dist/binutils/ld/ldlex.c: r1.2 91 descr 92 ldlex.c is generated from ldlex.l and we get macro redefinition 93 errors from it if __STDC_VERSION__ is not C99 compliant. This 94 hack forces NetBSD 1.6 and later systems to also include <stdint.h> 95 to get the relevant definitions. This hack should be backed out 96 when all platforms have switched away from GCC2. 97 kcah 98 99 hack gcc-strict-aliasing 100 cdate 6 August 2004 101 who junyoung 102 pr 26516 103 file src/usr.sbin/racoon/racoon/Makefile : 1.21 104 descr 105 GCC issues a warning "dereferencing type-punned pointer will break 106 strict-aliasing rules" when compiling 107 crypto/dist/kame/racoon/crypto/openssl.c with -O[23s]. Note that this 108 is due to use of type casting in a non-standard way in the code and 109 not a compiler bug. Once a new release of KAME with a proper fix 110 applied is imported this should be backed out. 111 kcah 112 113 hack gcc4 wrong uninitialised variable 114 mdate 10 May 2006 115 who mrg 116 file bin/ksh/eval.c : 1.6 117 file bin/sh/histedit.c : 1.39 118 file bin/sh/parser.c : 1.60 119 file bin/systrace/systrace.c : 1.33 120 file crypto/dist/heimdal/kdc/524.c : 1.10 121 file crypto/dist/ssh/sftp.c : 1.20 122 file crypto/dist/ssh/ssh-keysign.c : 1.11 123 file dist/ipf/lib/hostname.c : 1.2 124 file dist/ipf/tools/ipmon.c : 1.8 125 file dist/ntp/ntpd/refclock_shm.c : 1.4 126 file dist/ntp/sntp/timing.c : 1.3 127 file dist/pppd/pppstats/pppstats.c : 1.3 128 file dist/smbfs/lib/smb/rap.c : 1.6 129 file dist/tcpdump/print-zephyr.c : 1.5 130 file gnu/libexec/uucp/uucico/uucico.c : 1.6 131 file lib/libc/citrus/citrus_csmapper.c : 1.6 132 file lib/libc/citrus/citrus_pivot_factory.c : 1.5 133 file lib/libc/inet/inet_cidr_ntop.c : 1.3 134 file lib/libc/inet/inet_ntop.c : 1.3 135 file lib/libc/stdio/vfwprintf.c : 1.8 136 file libexec/ld.elf_so/arch/sparc64/mdreloc.c : 1.39 137 file sbin/fsck_ext2fs/dir.c : 1.19 138 file sbin/routed/rtquery/rtquery.c : 1.18 139 file sys/crypto/cast128/cast128.c : 1.9 140 file sys/ddb/db_command.c : 1.86 141 file sys/dev/cardbus/cardbus_map.c : 1.xxx 142 file sys/dev/fss.c : 1.25 143 file sys/dev/ic/mb86950.c : 1.xxx 144 file sys/dev/ic/midway.c : 1.71 145 file sys/dev/usb/ohci.c : 1.xxx 146 file sys/dev/usb/uhci.c : 1.xxx 147 file sys/dev/pci/cmpci.c : 1.xxx 148 file sys/dev/pci/machfb.c : 1.45 149 file sys/dist/ipf/netinet/ip_nat.c : 1.10 150 file sys/dist/ipf/netinet/ip_rpcb_pxy.c : 1.8 151 file sys/dist/pf/net/pf.c : 1.22 152 file sys/fs/udf/udf_vnops.c : 1.4 153 file sys/kern/kern_sig.c : 1.219 154 file sys/kern/tty.c : 1.181 155 file sys/net/bpf.c : 1.116 156 file sys/net/zlib.c : 1.26 157 file sys/netccitt/if_x25subr.c : 1.xxx 158 file sys/netinet/in.c : 1.107 159 file sys/netsmb/smb_smb.c : 1.27 160 file sys/netsmb/smb_trantcp.c : 1.22 161 file sys/nfs/nfs_serv.c : 1.108 162 file sys/nfs/nfs_socket.c : 1.129 163 file sys/nfs/nfs_syscalls.c : 1.91 164 file sys/ufs/lfs/lfs_vfsops.c : 1.207 [also (char *)] 165 file usr.bin/ftp/ftp.c : 1.140 166 file usr.bin/find/function.c : 1.54 167 file usr.bin/mail/tty.c : 1.20 168 file usr.bin/nl/nl.c : 1.7 169 file usr.bin/systat/keyboard.c : 1.23 170 file usr.bin/usbhidctl/usbhid.c : 1.29 171 file usr.bin/vi/cl/cl_read.c : 1.5 172 file usr.bin/vi/ex/ex_cscope.c : 1.12 173 file usr.bin/vi/ex/ex_tag.c : 1.19 174 file usr.bin/vi/vi/v_txt.c : 1.15 175 file usr.sbin/altq/altqstat/qdisc_rio.c : 1.4 176 file usr.sbin/cron/do_command.c : 1.19 177 file usr.sbin/timed/timed/slave.c : 1.15 178 descr 179 GCC 4.1 gets many uninitialised variable warnings wrong. We should 180 really audit all the old hacks like this when older compilers are 181 removed from the tree, as many are probably no longer required. 182 kcah 183 184 hack gcc4 pointer sign and strict aliasing problems 185 mdate 10 May 2006 186 who mrg 187 file bin/ed/Makefile : 1.33 188 file bin/systrace/Makefile : 1.12 189 file games/bcd/Makefile : 1.5 190 file games/dab/Makefile : 1.5 191 file games/larn/Makefile : 1.17 192 file games/pom/Makefile : 1.5 193 file lib/libasn1/Makefile : 1.26 194 file lib/libcrypt/Makefile : 1.17 195 file lib/libgssapi/Makefile : 1.16 196 file lib/libhdb/Makefile : 1.20 197 file lib/libkadm5clnt/Makefile : 1.21 198 file lib/libkadm5srv/Makefile : 1.25 199 file lib/libkrb5/Makefile : 1.35 200 file lib/libssh/Makefile : 1.6 201 file lib/libtelnet/Makefile : 1.26 202 file libexec/getty/Makefile : 1.14 203 file libexec/kadmind/Makefile : 1.19 204 file libexec/kpasswdd/Makefile : 1.14 205 file sbin/atactl/Makefile : 1.3 206 file sbin/cgdconfig/Makefile : 1.7 207 file sbin/clri/Makefile : 1.13 208 file sbin/dkctl/Makefile : 1.4 209 file sbin/dump/Makefile : 1.33 210 file sbin/fdisk/Makefile : 1.35 211 file sbin/fsck_ext2fs/Makefile : 1.11 212 file sbin/fsck_ffs/Makefile : 1.29 213 file sbin/fsdb/Makefile : 1.18 214 file sbin/mount_smbfs/Makefile : 1.4 215 file sbin/newfs/Makefile : 1.30 216 file sbin/newfs_sysvbfs/Makefile : 1.2 217 file sbin/restore/Makefile : 1.23 218 file sbin/veriexecctl/Makefile : 1.11 219 file usr.bin/awk/Makefile : 1.9 220 file usr.bin/ctags/Makefile : 1.8 221 file usr.bin/ssh/sftp/Makefile : 1.10 222 file usr.bin/ssh/ssh/Makefile : 1.25 223 file usr.bin/vi/build/Makefile : 1.26 224 file usr.bin/telnet/Makefile : 1.40 225 file usr.bin/tn3270/tn3270/Makefile : 1.36 226 file usr.bin/tr/Makefile : 1.4 227 file usr.sbin/amd/amd/Makefile : 1.27 228 file usr.sbin/amd/amq/Makefile : 1.14 229 file usr.sbin/amd/libamu/Makefile : 1.20 230 file usr.sbin/amd/pawd/Makefile : 1.5 231 file usr.sbin/bind/Makefile.inc : 1.22 232 file usr.sbin/bind/libdns/Makefile : 1.3 233 file usr.sbin/bind/named/Makefile : 1.17 234 file usr.sbin/bootp/bootptest/Makefile : 1.2 235 file usr.sbin/chrtbl/Makefile : 1.6 236 file usr.sbin/cron/Makefile : 1.12 237 file usr.sbin/dhcp/Makefile.inc : 1.20 238 file usr.sbin/dumplfs/Makefile : 1.11 239 file usr.sbin/hprop/Makefile : 1.13 240 file usr.sbin/installboot/Makefile : 1.35 241 file usr.sbin/ipf/ipftest/Makefile : 1.32 242 file usr.sbin/isdn/isdnd/Makefile : 1.6 243 file usr.sbin/isdn/isdnmonitor/Makefile : 1.3 244 file usr.sbin/isdn/isdntel/Makefile : 1.2 245 file usr.sbin/isdn/isdntrace/Makefile : 126 246 file usr.sbin/makefs/Makefile : 1.17 247 file usr.sbin/mscdlabel/Makefile : 1.5 248 file usr.sbin/pkg_install/add/Makefile : 1.7 249 file usr.sbin/pkg_install/create/Makefile : 1.5 250 file usr.sbin/pkg_install/lib/Makefile : 1.28 251 file usr.sbin/ntp/ntpd/Makefile : 1.10/1.11 252 file usr.sbin/ntp/ntptime/Makefile : 1.4/1.5 253 file usr.sbin/pppd/Makefile.inc : 1.3 254 file usr.sbin/pppd/pppd/Makefile : 1.38 255 file usr.sbin/rarpd/Makefile : 1.10 256 file usr.sbin/rbootd/Makefile : 1.10 257 file usr.sbin/rpc.pcnfsd/Makefile : 1.17 258 file usr.sbin/rtadvd/Makefile : 1.9 259 file usr.sbin/tcpdump/Makefile : 1.42 260 file usr.sbin/wiconfig/Makefile : 1.3 261 file usr.sbin/ypserv/ypserv/Makefile : 1.16 262 descr 263 GCC 4.1 warns on pointer sign comparision/assignments and lots of 264 code does not conform. For now we use -Wno-pointer-sign and 265 -fno-strict-aliasing. 266 kcah 267 268 269 port vax 270 271 hack gcc 2.95/vax doesn't like abort being used as function pointer 272 cdate Tue Dec 13 05:54:50 GMT 2005 273 who jmc 274 file lib/libc/rpc/svc_vc.c 1.15 275 descr 276 Provide a local definition for abort which doesn't include 277 the noreturn attribute which trips up gcc 2.95 on vax. 278 279 hack gcc 2.95/vax doesn't have stdbool.h and gettext needs it 280 cdate Mon May 9 12:16:22 CDT 2005 281 who jmc 282 file gnu/usr.bin/gettext/Makefile.inc.prog 1.5 283 gnu/usr.bin/gettext/libgrep/Makefile 1.3 284 gnu/usr.bin/gettext/libnlspr/Makefile 1.5 285 gnu/usr.bin/gettext/libnlsut/Makefile 1.3 286 descr 287 The latest gettext assumes a C99 environment or at least 288 configure checks to work around this. As we don't use configure 289 provide a stdbool.h for vax builds locally in directories from 290 the template provided by the gettext code. 291 292 hack gcc 2.95/vax can't handle __used__ in mcount.c 293 cdate Fri May 6 14:30:53 CDT 2005 294 who jmc 295 file src/lib/libc/gmon/mcount.c 1.17 296 descr 297 Recent changes to mark this as __used__ to prevent optimization 298 away on sparc64 don't work on 2.95 vax. Ifdef'd back in the 299 old __unused__ if on vax. 300 301 hack gcc 2.95/vax cannot handle __builtin_ffs() 302 cdate Fri Aug 23 21:31:15 CEST 2002 303 who ragge 304 file sys/lib/libkern/libkern.h : 1.42 305 descr 306 __builtin_ffs() is ifdef'd away if __vax__. Matt Thomas has 307 added this feature to GCC 3 so it can be removed when switching. 308 309 310 hack gcc-vax-libbz2 311 mdate 27 Jun 2002 312 who thorpej 313 file lib/libbz2/Makefile 314 descr 315 libbz2 is mis-compiled with optimization with GCC 2.95.3 316 on VAX. -O0 works around this problem. 317 kcah 318 319 hack gawk 320 mdate 8 Nov 2003 321 who ragge 322 file gnu/usr.bin/gawk/Makefile 323 descr 324 gawk is mis-compiled with optimization with GCC 2.95.3 325 on VAX. -O0 works around this problem. 326 kcah 327 328 hack vax Toolchain bug 329 cdate 28 Mar 2003 330 who he 331 file sys/arch/vax/vax/intvec.S : 1.5 332 descr 333 Workaround for PR toolchain/20924. The assembler apparently 334 tries to range-check byte offsets when it doesn't have 335 sufficient information to make that decision. 336 Workaround uses `brw' instead of `brb' instruction. 337 kcah 338 339 hack vax gcc 2.95.3 -Wuninitialized workarounds 340 cdate 6 Nov 2003 341 who he 342 file sys/dev/bi/if_ni.c : 1.22 343 file sys/arch/vax/vax/ctu.c : 1.20 344 descr 345 Workaround for gcc 2.95.3 failing to detect that certain 346 variables will be initialized; so that this code compiles 347 with -Wuninitialized. Should be reviewed and possibly 348 reverted when gcc 3.3.2 is ready for vax. 349 kcah 350 351 hack vax gcc 2.95.3 structure initialization 352 cdat 13 May 2004 353 who cl 354 file sys/miscfs/kernfs/kernfs_vnops.c : 1.104 355 descr 356 Workaround for gcc 2.95.3 failing to initialize structures 357 and/or unions inside structures using nested designators. 358 Should be reverted when gcc >=3.3.3 is ready for vax. 359 kcah 360 361 hack vax gcc 2.95.3 needs -I. to build nslexer.c 362 cdat 6 Jun 2004 363 who mhitch 364 file lib/libc/arch/vax/Makefile.inc : 1.6 365 descr 366 It appears necessary to add -I. to CPPFLAGS when building 367 nslesxer.c. This may be caused by gcc 2.95.3 being used. 368 Should be reverted when a newer gcc is ready for vax. 369 kcah 370 371 hack vax gcc 2.95.3 doesn't understand "-std=c99" 372 cdat 5 April 2005 373 who tron 374 file src/share/mk/bsd.sys.mk 375 descr 376 We cannot use "-std=c99" for compiler warning level 4 and above 377 because gcc 2.95.3 doesn't support that option. 378 kcah 379 380 hack declare boolean_t in two IPF user-mode programs 381 cdate Tue Mar 7 19:19:20 CET 2006 382 who he 383 file dist/ipf/ipsend/iptests.c : 1.8 384 dist/ipf/ipsend/sock.c : 1.7 385 descr 386 The IPF user-mode programs ipsend and iptest first 387 include <sys/types.h> without _KERNEL defined, and 388 later include <sys/file.h> with _KERNEL defined. 389 This causes a build failure when building for vax, 390 since <sys/device.h> ends up being included without 391 bollean_t being defined by <sys/types.h>. 392 Build failure and further details documented in 393 PR#32907. 394 kcah 395 396 port sparc64 397 398 hack binutil-2.11-sparc64-pltrela 399 mdate 14 Aug 2001 400 who eeh 401 file libexec/ld.elf_so/arch/sparc64/mdreloc.c 402 descr 403 The first four PLT entries are reserved. There is some 404 disagreement whether they should have associated relocation 405 entries. Both the SPARC 32-bit and 64-bit ELF specifications 406 say that they should have relocation entries, but the 32-bit 407 SPARC binutils do not generate them, and now the 64-bit SPARC 408 binutils have stopped generating them too. 409 410 To provide binary compatibility, we will check the first entry, 411 if it is reserved it should not be of the type JMP_SLOT. If it 412 is JMP_SLOT, then the 4 reserved entries were not generated and 413 our index is 4 entries too far, so we frob the rela pointer. 414 kcah 415 416 417 port arm 418 419 hack gcc-unsigned-compare 420 cdate 09 Mar 2002 421 mdate 18 Mar 2002 422 who bjh21 423 file dist/bind/lib/nameser/ns_parse.c : 1.3 424 file dist/dhcp/minires/ns_parse.c : 1.3 425 file dist/dhcp/omapip/result.c : 1.2 426 file dist/dhcp/server/failover.c : 1.3 427 file gnu/dist/gawk/eval.c : 1.4 428 file gnu/dist/toolchain/bfd/bfd.c : 1.2 429 file gnu/dist/toolchain/bfd/format.c : 1.2 430 file gnu/dist/toolchain/gdb/target.c : 1.2 431 file sys/kern/vfs_subr.c : 1.172 432 descr When checking that a potentially-unsigned enum is >= 0, assign 433 it to an int first. This is necessary to avoid "comparison is 434 always true" warnings with -fshort-enums. Casting to an int 435 really should be enough, but turns out not to be. 436 kcah 437 438 hack gcc 3.3.2/arm sys/kern/uipc_socket.c 439 cdate Tue Oct 28 18:02:16 GMT 2003 440 who skrll 441 pr 23044 442 file sys/arch/arm/conf/Makefile.arm : 1.19 443 descr 444 Performing a build.sh tools on a CATS with NFS mounted 445 obj and src directories results in "panic: receive 1" 446 The hack is to compile sys/kern/uipc_socket.c with 447 -fno-strict-aliasing 448 kcah 449 450 451 port pc532 452 453 hack egcs-pc532-ip6_mroute 454 cdate 09 Jul 2002 455 who simonb 456 file sys/arch/pc532/conf/Makefile.pc532 : 1.70 457 file sys/arch/pc532/conf/files.pc532 : 1.47 458 descr 459 egcs 1.1.2 gets an "internal error--insn does not satisfy its 460 constraints" error compiling ip6_mroute.c with -O2 or greater. 461 -O1 works around this problem. 462 kcah 463 464 hack gcc-pc532-duffs_device 465 cdate Mon Oct 27 07:23:05 UTC 2003 466 who simonb 467 file sys/arch/pc532/conf/Makefile.pc532 : 1.71 468 file sys/arch/pc532/conf/files.pc532 : 1.52 469 pr GCC PR optimization/5230 470 descr 471 gcc incorrectly gives an "unreachable code at beginning of 472 switch statement" for a Duff's device construct in 473 arch/pc532/dev/ncr.c. There is no way to disable just this 474 warning, so -Wno-error is turned on for this file. 475 kcah 476 477 hack gcc332-cppmacro-ice 478 cdate Sun Dec 7 12:48:33 UTC 2003 479 who simonb 480 file gnu/usr.bin/gcc3/libcpp/Makefile : 1.2 481 descr 482 gcc 3.3.2 gets an ICE when compiling cppmacro.c with -O2. 483 The hack is to use -O1 for this file. Fixed in gcc 484 -current mainline, unable to work out where the fix is 485 right now. 486 kcah 487 488 489 port sh3 490 491 hack gcc-sh3-sed 492 mdate 23 Apr 2002 493 who thorpej 494 file usr.bin/sed/Makefile : 1.9 : 9 : 13 495 descr 496 The in-tree GCC 2.95.3-based compiler ICEs when building 497 with optimization for SuperH. Hack is to build with -O0. 498 kcah 499 500 501 port sh5 502 503 hack SuperH SH5 Toolchain Bugs 504 cdate 11 Jul 2002 505 who scw 506 file usr.sbin/ndbootd/ndbootd.c : 1.6 507 file usr.sbin/traceroute/traceroute.c : 1.48 508 descr 509 The SuperH SH5 toolchain (2.97-sh5-010522) gets an internal 510 compiler error when assigning a bit-wise inverted value 511 under some circumstances. 512 Work around it by splitting the statement into two. 513 kcah 514 515 hack SuperH SH5 Toolchain Bugs 516 cdate 17 May 2003 517 who scw 518 file lib/libpthread/pthread_lock.c : 1.7 519 descr 520 The SuperH SH5 toolchain generates incorrect PIC code when 521 faced with a symbol which is declared extern, but has local 522 scope due to being defined within an asm() statement (without 523 being declared .globl in that statement). Work around it by 524 adding the .globl. 525 kcah 526 527 hack gcc 3.3.2 on sh5 - ICE compiling reload1.c at -O2 528 cdate Sun Dec 7 19:44:05 GMT 2003 529 who scw 530 file gnu/usr.bin/gcc3/backend/Makefile : 1.13 531 descr 532 Gcc3 for sh5 gets an ICE compiling reload1.c at -O2. 533 Drop to -O1 for now when building for sh5. 534 kcah 535 536 hack gcc 3.3.2 on sh5 - ICE compiling elf32.c/elf64.c at -O2 537 cdate Sun Dec 7 21:10:46 GMT 2003 538 who scw 539 file gnu/lib/libbfd/Makefile : 1.39 540 descr 541 Gcc3 for sh5 gets an ICE compiling libbfd's elf32.c 542 and elf64.c at -O2. 543 Drop to -O1 for now when building for sh5. 544 kcah 545 546 547 hack gcc 3.3.2 on sh5 - fatal warning compiling function.c 548 cdate Sun Dec 7 19:44:05 GMT 2003 549 who scw 550 file gnu/usr.bin/gcc3/backend/Makefile : 1.13 551 descr 552 Gcc3 for sh5 issues a warning: 553 .../gnu/dist/gcc/gcc/function.c:4742: warning: `and' of 554 mutually exclusive equal-tests is always 0. 555 This causes the build to fail because of -Werror. 556 Work-around by defining NOGCCERROR when building for sh5. 557 kcah 558 559 hack gcc 3.3.3 on sh5 - ICE compiling rbtdb.c and rbtdb64.c 560 cdate Thu Nov 11 00:35:33 UTC 2004 561 who he 562 file usr.sbin/bind/libdns/Makefile/1.2 563 descr 564 Gcc3 for sh5 gets an ICE compiling these files at -O2. 565 Drop to -O1 for now when building for sh5. 566 kcah 567 568 hack gcc 3.3.3 nb3 on sh5 - ICE compiling bsd-comp.c 569 cdate Thu May 25 23:05:20 UTC 2005 570 who he 571 file sys/lkm/net/bsdcomp/Makefile : 1.3 572 descr 573 Gcc3 for sh5 gets an ICE compiling this at -O2, 574 "could not split insn". Drop to -O1 for sh5. 575 kcah 576 577 hack gcc 3.3.3 nb3 on sh5 - ICE compiling strtod.c 578 cdate Tue Jan 31 10:51:52 GMT 2006 579 who scw 580 file lib/libc/gdtoa/Makefile.inc : 1.2 581 descr 582 Gcc3 for sh5 gets an ICE compiling this at -O2, 583 "could not split insn". Drop to -O1 for sh5. 584 kcah 585 586 port sun2 587 588 hack gcc 3.3.2/mdsetimage 589 cdate Tue Oct 28 18:43:05 EST 2003 590 who fredette 591 file gnu/usr.sbin/mdsetimage/Makefile : 1.15 592 descr 593 mdsetimage.c causes cc1 to barf for as-yet unknown reasons. 594 this hack uses -O0 to avoid the problem. 595 kcah 596 597 hack gcc 3.3.2/installboot/ffs.c 598 cdate Tue Oct 28 18:43:05 EST 2003 599 who fredette 600 file usr.sbin/installboot/Makefile : 1.26 601 descr 602 ffs.c causes cc1 to barf for as-yet unknown reasons. this 603 hack uses -O0 to avoid the problem. 604 kcah 605 606 607 port m68000 608 609 hack gcc 3.3.2/gcc/ra-colorize.c 610 cdate Wed Nov 5 11:03:13 EST 2003 611 who mrg 612 file gnu/usr.bin/gcc3/backend/Makefile : 1.11 613 descr 614 ra-colorize.c causes a whole spew of unreferenced .L* local 615 symbols. using -O0 (or even -O2 reportedly) avoids the problem. 616 Note this has been fixed in 3.3.3 at least on m68k, 617 but it hasn't been confirmed on sun2/m68000. 618 (it's too slow even on emulator and unlikely to build 619 toolchains on sun2 with its maximum 4MB RAM) 620 kcah 621 622 port sparc64 623 624 hack disable optimzations for uvm_bio.c on 32 bit kernels 625 cdate Sun Mar 21 14:14:04 MET 2004 626 who martin 627 file sys/arch/sparc64/conf/Makefile.sparc64 : 1.53-1.54 628 file sys/arch/sparc64/conf/files.sparc64 : 1.93 629 descr 630 The sparc compiler miscompiles uvm_bio.c when using 631 any optimization. This results in ubc_release panics. 632 kcah 633 634 port macppc 635 636 hack remove inline from rotate_{left,right} 637 cdate Tue Feb 22 13:43:25 EST 2005 638 who christos 639 file src/dist/bind/lib/dns/rbt.c 640 descr 641 The macppc gcc-3.3 compiler miscompiles rbt.c when these 642 functions are inlined. The error is: 643 .* named[368]: rbt.c:1584: INSIST(child != (void *)0) >failed 644 .* named[368]: exiting (due to assertion failure) 645 This is reportedly fixed in gcc-3.4 646 kcah 647 648 port hppa 649 650 hack hppa-gcc-3.3.3/grep/dfa.c 651 cdate Sun Aug 8 08:34:32 PDT 2004 652 who chs 653 file gnu/usr.bin/grep/grep/Makefile : 1.4 654 descr 655 gcc 3.3.3 generates bad code for dfa.c with -O2, 656 reduce optimization to -O1 to avoid the bug. 657 kcah 658 659 hack hppa-gcc-3.3.3 / make/buf.c 660 cdate Mon May 8 13:02:36 CEST 2006 661 who he 662 file usr.bin/make/Makefile : 1.34 663 descr 664 gcc 3.3.3 nb3 gets an "unrecognized insn" internal 665 compiler error when building this file with -O2, 666 reduce optimization to -O1 to avoid the bug. 667 kcah 668 669 hack hppa boot-from-disk memory corruption 670 cdate Wed May 18 06:56:07 PDT 2005 671 who chs 672 file src/sys/dev/scsipi/scsipiconf.h : 1.98 673 descr 674 There is some bug with DMA on hppa that corrupts scsipi_xfer 675 structures, but it only shows up when booting from disk. 676 For now, we'll add some padding to scsipi_xfer so that 677 the corrupted memory is not otherwise used. 678 kcah 679 680 port mips 681 682 hack mips-shared-linker-load-address 683 cdate Fri Oct 7 08:33:10 UTC 2005 684 who simonb 685 file src/sys/kern/exec_elf32.c : 1.107 686 descr 687 With COMPAT_16 or previous enabled (which enables 688 ELF_INTERP_NON_RELOCATABLE) a recent ld.elf_so will 689 load and run at address 0. The check to fix this in 690 rev 1.107 only checks the first psection of the ELF 691 executable, which may not be loadable. A more correct 692 fix is to check the first loadable psection instead of 693 just the first psection. 694 kcah 695 696
Indexes created Wed Nov 05 21:10:10 GMT 2025