HACKS revision 1.110.2.2
1 # $NetBSD: HACKS,v 1.110.2.2 2008/12/06 21:27:36 snj 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 gcc-strict-aliasing 88 cdate 6 August 2004 89 who junyoung 90 pr 26516 91 file src/usr.sbin/racoon/racoon/Makefile : 1.21 92 descr 93 GCC issues a warning "dereferencing type-punned pointer will break 94 strict-aliasing rules" when compiling 95 crypto/dist/kame/racoon/crypto/openssl.c with -O[23s]. Note that this 96 is due to use of type casting in a non-standard way in the code and 97 not a compiler bug. Once a new release of KAME with a proper fix 98 applied is imported this should be backed out. 99 kcah 100 101 hack gcc4 wrong uninitialized variable 102 mdate 10 May 2006 103 who mrg 104 file bin/ksh/eval.c : 1.6 105 file bin/sh/histedit.c : 1.39 106 file bin/sh/parser.c : 1.60 107 file crypto/dist/heimdal/kdc/524.c : 1.10 108 file crypto/dist/ssh/sftp.c : 1.20 109 file crypto/dist/ssh/ssh-keysign.c : 1.11 110 file dist/ipf/lib/hostname.c : 1.2 111 file dist/ipf/tools/ipmon.c : 1.8 112 file dist/ntp/ntpd/ntp_request.c : 1.4 113 file dist/ntp/ntpd/refclock_shm.c : 1.4 114 file dist/ntp/sntp/timing.c : 1.3 115 file dist/pppd/pppstats/pppstats.c : 1.3 116 file dist/smbfs/lib/smb/rap.c : 1.6 117 file dist/tcpdump/print-zephyr.c : 1.5 118 file distrib/utils/sysinst/aout2elf.c : 1.12 119 file gnu/libexec/uucp/uucico/uucico.c : 1.6 120 file lib/libc/citrus/citrus_csmapper.c : 1.6 121 file lib/libc/citrus/citrus_pivot_factory.c : 1.5 122 file lib/libc/inet/inet_cidr_ntop.c : 1.3 123 file lib/libc/inet/inet_ntop.c : 1.3 124 file lib/libc/stdio/vfwprintf.c : 1.8 125 file libexec/ld.elf_so/arch/m68k/mdreloc.c : 1.20 126 file libexec/ld.elf_so/arch/powerpc/ppc_reloc.c : 1.40 127 file libexec/ld.elf_so/arch/sh3/mdreloc.c : 1.22 128 file libexec/ld.elf_so/arch/sparc/mdreloc.c : 1.39 129 file libexec/ld.elf_so/arch/sparc64/mdreloc.c : 1.39 130 file libexec/ld.elf_so/arch/vax/mdreloc.c : 1.21 131 file libexec/ld.elf_so/arch/x86_64/mdreloc.c : 1.27 132 file sbin/fsck_ext2fs/dir.c : 1.19 133 file sbin/routed/rtquery/rtquery.c : 1.18 134 file sys/arch/amd64/amd64/pmap.c : 1.26 135 file sys/arch/i386/pci/piixpcib.c : 1.4 136 file sys/arch/m68k/m68k/pmap_motorola.c : 1.4 137 file sys/crypto/cast128/cast128.c : 1.9 138 file sys/ddb/db_command.c : 1.86 139 file sys/dev/cardbus/cardbus_map.c : 1.21 140 file sys/dev/fss.c : 1.25 141 file sys/dev/ic/igsfb.c : 1.39 142 file sys/dev/ic/mb86950.c : 1.5 143 file sys/dev/ic/midway.c : 1.71 144 file sys/dev/kttcp.c : 1.18 145 file sys/dev/rasops/rasops_bitops.h : 1.9 146 file sys/dev/pci/cmpci.c : 1.31 147 file sys/dev/pci/machfb.c : 1.45 148 file sys/dev/usb/ohci.c : 1.174 149 file sys/dev/usb/uhci.c : 1.196 150 file sys/dev/rasops/rasops_bitops.h : 1.9 151 file sys/dist/ipf/netinet/ip_nat.c : 1.10 152 file sys/dist/ipf/netinet/ip_rpcb_pxy.c : 1.8 153 file sys/dist/pf/net/pf.c : 1.22 154 file sys/fs/udf/udf_vnops.c : 1.4 155 file sys/kern/kern_sig.c : 1.219 156 file sys/kern/tty.c : 1.181 157 file sys/net/bpf.c : 1.116 158 file sys/net/zlib.c : 1.26 159 file sys/netccitt/if_x25subr.c : 1.37 160 file sys/netinet/in.c : 1.107 161 file sys/netsmb/smb_smb.c : 1.27 162 file sys/netsmb/smb_trantcp.c : 1.22 163 file sys/nfs/nfs_serv.c : 1.108 164 file sys/nfs/nfs_socket.c : 1.129 165 file sys/nfs/nfs_syscalls.c : 1.91 166 file sys/ufs/lfs/lfs_vfsops.c : 1.207 [also (char *)] 167 file usr.bin/ftp/ftp.c : 1.140 168 file usr.bin/find/function.c : 1.54 169 file usr.bin/mail/tty.c : 1.20 170 file usr.bin/msgc/msg_sys.def : 1.33-1.34 171 file usr.bin/nl/nl.c : 1.7 172 file usr.bin/systat/keyboard.c : 1.23 173 file usr.bin/usbhidctl/usbhid.c : 1.29 174 file usr.bin/vi/cl/cl_read.c : 1.5 175 file usr.bin/vi/ex/ex_cscope.c : 1.12 176 file usr.bin/vi/ex/ex_tag.c : 1.19 177 file usr.bin/vi/vi/v_txt.c : 1.15 178 file usr.sbin/altq/altqstat/qdisc_rio.c : 1.4 179 file usr.sbin/cron/do_command.c : 1.19 180 file usr.sbin/timed/timed/slave.c : 1.15 181 descr 182 GCC 4.1 gets many uninitialised variable warnings wrong. We should 183 really audit all the old hacks like this when older compilers are 184 removed from the tree, as many are probably no longer required. 185 The problem is that it does not recognize initialization via function 186 call pointer. I.e. 187 int p; 188 foo(&p); 189 does not mark p as initialized. 190 kcah 191 192 hack gcc4 pointer sign and strict aliasing problems 193 mdate 10 May 2006 194 who mrg 195 file bin/ed/Makefile : 1.33 196 file distrib/utils/sysinst/Makefile.inc : 1.44 197 file distrib/utils/x_dhclient/Makefile : 1.15 198 file games/bcd/Makefile : 1.5 199 file games/dab/Makefile : 1.5 200 file games/larn/Makefile : 1.17 201 file games/pom/Makefile : 1.5 202 file lib/libasn1/Makefile : 1.26 203 file lib/libcrypt/Makefile : 1.17 204 file lib/libgssapi/Makefile : 1.16 205 file lib/libhdb/Makefile : 1.20 206 file lib/libkadm5clnt/Makefile : 1.21 207 file lib/libkadm5srv/Makefile : 1.25 208 file lib/libkrb5/Makefile : 1.35 209 file lib/libssh/Makefile : 1.6 210 file lib/libtelnet/Makefile : 1.26 211 file libexec/getty/Makefile : 1.14 212 file libexec/kadmind/Makefile : 1.19 213 file libexec/kpasswdd/Makefile : 1.14 214 file sbin/atactl/Makefile : 1.3 215 file sbin/cgdconfig/Makefile : 1.7 216 file sbin/clri/Makefile : 1.13 217 file sbin/dkctl/Makefile : 1.4 218 file sbin/dump/Makefile : 1.33 219 file sbin/fdisk/Makefile : 1.35 220 file sbin/fsck_ext2fs/Makefile : 1.11 221 file sbin/fsck_ffs/Makefile : 1.29 222 file sbin/fsdb/Makefile : 1.18 223 file sbin/mount_smbfs/Makefile : 1.4 224 file sbin/newfs/Makefile : 1.30 225 file sbin/newfs_sysvbfs/Makefile : 1.2 226 file sbin/restore/Makefile : 1.23 227 file sbin/veriexecctl/Makefile : 1.11 228 file sys/lib/libsa/Makefile : 1.59 229 file sys/arch/evbarm/adi_brh/brh_machdep.c : 1.24 230 file usr.bin/awk/Makefile : 1.9 231 file usr.bin/crontab/Makefile : 1.24 232 file usr.bin/ctags/Makefile : 1.8 233 file usr.bin/gzip/Makefile : 1.10 234 file usr.bin/ssh/sftp/Makefile : 1.10 235 file usr.bin/ssh/ssh/Makefile : 1.25 236 file usr.bin/vi/build/Makefile : 1.26 237 file usr.bin/telnet/Makefile : 1.40 238 file usr.bin/tn3270/tn3270/Makefile : 1.36 239 file usr.bin/tr/Makefile : 1.4 240 file usr.sbin/amd/amd/Makefile : 1.27 241 file usr.sbin/amd/amq/Makefile : 1.14 242 file usr.sbin/amd/libamu/Makefile : 1.20 243 file usr.sbin/amd/pawd/Makefile : 1.5 244 file usr.sbin/bind/Makefile.inc : 1.22 245 file usr.sbin/bind/libdns/Makefile : 1.3 246 file usr.sbin/bind/named/Makefile : 1.17 247 file usr.sbin/bootp/bootptest/Makefile : 1.2 248 file usr.sbin/chrtbl/Makefile : 1.6 249 file usr.sbin/cron/Makefile : 1.12 250 file usr.sbin/dhcp/Makefile.inc : 1.20 251 file usr.sbin/dumplfs/Makefile : 1.11 252 file usr.sbin/hprop/Makefile : 1.13 253 file usr.sbin/installboot/Makefile : 1.35 254 file usr.sbin/ipf/ipftest/Makefile : 1.32 255 file usr.sbin/isdn/isdnd/Makefile : 1.6 256 file usr.sbin/isdn/isdnmonitor/Makefile : 1.3 257 file usr.sbin/isdn/isdntel/Makefile : 1.2 258 file usr.sbin/isdn/isdntrace/Makefile : 126 259 file usr.sbin/mopd/common/Makefile : 1.10 260 file usr.sbin/mopd/mopd/Makefile : 1.9 261 file usr.sbin/mopd/mopprobe/Makefile : 1.7 262 file usr.sbin/makefs/Makefile : 1.17 263 file usr.sbin/mscdlabel/Makefile : 1.5 264 file usr.sbin/pkg_install/add/Makefile : 1.7 265 file usr.sbin/pkg_install/create/Makefile : 1.5 266 file usr.sbin/pkg_install/lib/Makefile : 1.28 267 file usr.sbin/ntp/ntpd/Makefile : 1.10/1.11 268 file usr.sbin/ntp/ntptime/Makefile : 1.4/1.5 269 file usr.sbin/pppd/Makefile.inc : 1.3 270 file usr.sbin/pppd/pppd/Makefile : 1.38 271 file usr.sbin/rarpd/Makefile : 1.10 272 file usr.sbin/rbootd/Makefile : 1.10 273 file usr.sbin/rpc.pcnfsd/Makefile : 1.17 274 file usr.sbin/rtadvd/Makefile : 1.9 275 file usr.sbin/tcpdump/Makefile : 1.42 276 file usr.sbin/wiconfig/Makefile : 1.3 277 descr 278 GCC 4.1 warns on pointer sign comparision/assignments and lots of 279 code does not conform. For now we use -Wno-pointer-sign and 280 -fno-strict-aliasing. 281 kcah 282 283 hack cross-building hack on Darwin 284 mdate 20 July 2008 285 who agc 286 file src/distrib/common/Makefile.mdset : 1.33 287 descr 288 Darwin has problems with getopt() when used in mdsetimage -v, 289 due to the difference between BSD and libiberty() getopt 290 implementations, more fully described in 291 http://mail-index.netbsd.org/current-users/2008/06/27/msg003242.html 292 and the subsequent thread. For just now, we just have an ugly 293 workaround not to call mdsetimage with the -v argument on Darwin 294 kcah 295 296 hack avoid rebuilding asn1 libraries 297 mdate 03 August 2008 298 who veego 299 file src/crypto/dist/heimdal/lib/asn1/gen.c : 1.10 300 file src/lib/libasn1/Makefile : 1.32 301 file src/lib/libhdb/Makefile : 1.23 302 file src/lib/libgssapi/Makefile : 1.20 303 file src/lib/libhx509/Makefile : 1.3 304 pr 9702 39185 305 descr 306 asn1_compile does not check if generated header files do not have to 307 be rebuild. 308 Generate .hx files and copy it in the Makefiles if they changed. 309 kcah 310 311 hack rbus resource allocation work around 312 cdate 10 May 2007 313 who jnemeth 314 file src/sys/dev/pcmcia/aic_pcmcia.c : 1.35 315 pr 26909 31245 316 descr 317 On some cards, the card align field property value interferes 318 with the rbus resource allocation causing the card not to 319 configure properly. Setting it to 0 fixes the problem but it 320 is not the proper solution. 321 kcah 322 323 hack avoid gcc4 -O1 bug in loop optimize 324 cdate 29 November 2008 325 who tsutsui 326 file src/sbin/ifconfig/Makefile : 1.39 327 pr 40036 40066 328 descr 329 gcc -O1 seems to generate wrong code in loop optimize so that 330 ifconfig lo0 inet6 doesn't return error even if a kernel 331 doesn't have IPv6 support. (see the above PRs for details) 332 For workaround, specify -fno-loop-optimize on m68000, 333 which uses -O1 by default. 334 kcah 335 336 port vax 337 338 hack gcc4/vax ICE 339 cdate 340 who tsutsui 341 file sys/arch/vax/conf/Makefile.vax 342 descr 343 GCC4 on vax gets ICE on compiling sys/ddb/db_command.c. 344 -fno-tree-ter prevents it so add it to COPTS. 345 kcah 346 347 hack gcc4/vax compiler crash 348 cdate Fri Jun 30 22:39:12 PDT 2006 349 who mrg 350 file bin/csh/Makefile : 1.27 351 file lib/i18n_module/UTF7/Makefile : 1.2 352 descr 353 GCC4 on vax crashes. -O0 stops it happening so far... 354 kcah 355 356 hack gcc 2.95/vax doesn't like abort being used as function pointer 357 cdate Tue Dec 13 05:54:50 GMT 2005 358 who jmc 359 file lib/libc/rpc/svc_vc.c 1.15 360 descr 361 Provide a local definition for abort which doesn't include 362 the noreturn attribute which trips up gcc 2.95 on vax. 363 kcah 364 365 hack gcc 2.95/vax doesn't have stdbool.h and gettext needs it 366 cdate Mon May 9 12:16:22 CDT 2005 367 who jmc 368 file gnu/usr.bin/gettext/Makefile.inc.prog 1.5 369 gnu/usr.bin/gettext/libgrep/Makefile 1.3 370 gnu/usr.bin/gettext/libnlspr/Makefile 1.5 371 gnu/usr.bin/gettext/libnlsut/Makefile 1.3 372 descr 373 The latest gettext assumes a C99 environment or at least 374 configure checks to work around this. As we don't use configure 375 provide a stdbool.h for vax builds locally in directories from 376 the template provided by the gettext code. 377 kcah 378 379 hack gcc 2.95/vax cannot handle __builtin_ffs() 380 cdate Fri Aug 23 21:31:15 CEST 2002 381 who ragge 382 file sys/lib/libkern/libkern.h : 1.42 383 descr 384 __builtin_ffs() is ifdef'd away if __vax__. Matt Thomas has 385 added this feature to GCC 3 so it can be removed when switching. 386 kcah 387 388 hack gcc 2.95/vax libbz2 389 mdate 27 Jun 2002 390 who thorpej 391 file lib/libbz2/Makefile 392 descr 393 libbz2 is mis-compiled with optimization with GCC 2.95.3 394 on VAX. -O0 works around this problem. 395 kcah 396 397 hack vax Toolchain bug 398 cdate 28 Mar 2003 399 who he 400 file sys/arch/vax/vax/intvec.S : 1.5 401 descr 402 Workaround for PR toolchain/20924. The assembler apparently 403 tries to range-check byte offsets when it doesn't have 404 sufficient information to make that decision. 405 Workaround uses `brw' instead of `brb' instruction. 406 kcah 407 408 hack vax gcc 2.95.3 -Wuninitialized workarounds 409 cdate 6 Nov 2003 410 who he 411 file sys/dev/bi/if_ni.c : 1.22 412 file sys/arch/vax/vax/ctu.c : 1.20 413 descr 414 Workaround for gcc 2.95.3 failing to detect that certain 415 variables will be initialized; so that this code compiles 416 with -Wuninitialized. Should be reviewed and possibly 417 reverted when gcc 3.3.2 is ready for vax. 418 kcah 419 420 hack vax gcc 2.95.3 structure initialization 421 cdat 13 May 2004 422 who cl 423 file sys/miscfs/kernfs/kernfs_vnops.c : 1.104 424 descr 425 Workaround for gcc 2.95.3 failing to initialize structures 426 and/or unions inside structures using nested designators. 427 Should be reverted when gcc >=3.3.3 is ready for vax. 428 kcah 429 430 hack vax gcc 2.95.3 needs -I. to build nslexer.c 431 cdat 6 Jun 2004 432 who mhitch 433 file lib/libc/arch/vax/Makefile.inc : 1.6 434 descr 435 It appears necessary to add -I. to CPPFLAGS when building 436 nslesxer.c. This may be caused by gcc 2.95.3 being used. 437 Should be reverted when a newer gcc is ready for vax. 438 kcah 439 440 hack vax gcc 2.95.3 doesn't understand "-std=c99" 441 cdat 5 April 2005 442 who tron 443 file src/share/mk/bsd.sys.mk 444 descr 445 We cannot use "-std=c99" for compiler warning level 4 and above 446 because gcc 2.95.3 doesn't support that option. 447 kcah 448 449 hack declare boolean_t in two IPF user-mode programs 450 cdate Tue Mar 7 19:19:20 CET 2006 451 who he 452 file dist/ipf/ipsend/iptests.c : 1.8 453 dist/ipf/ipsend/sock.c : 1.7 454 descr 455 The IPF user-mode programs ipsend and iptest first 456 include <sys/types.h> without _KERNEL defined, and 457 later include <sys/file.h> with _KERNEL defined. 458 This causes a build failure when building for vax, 459 since <sys/device.h> ends up being included without 460 bollean_t being defined by <sys/types.h>. 461 Build failure and further details documented in 462 PR#32907. 463 kcah 464 465 hack pcc 0.9.9 large string literals 466 cdat 8 July 2008 467 who gmcgarry 468 file sys/conf/param.c : 1.58 469 descr 470 Workaround for pcc 0.9.9 not handling large string literals 471 which causes kernels with 'options INCLUDE_CONFIG_FILE' to 472 fail compilation. 473 There is a proposal on the pcc mailing list to stuff config 474 file in ELF section. 475 kcah 476 477 hack xorg warnings 478 cdat 30 July 2008 479 who mrg 480 file external/mit/xorg/lib/libSM/Makefile : 1.2 481 external/mit/xorg/lib/libX11/Makefile.libx11 : 1.2 482 external/mit/xorg/lib/libXext/Makefile : 1.2 483 external/mit/xorg/lib/libXfont/Makefile : 1.2 484 descr 485 Disable several warnings or use -Wno-error across Xorg sources 486 while we get them working 487 kcah 488 489 port arm 490 491 hack gcc-unsigned-compare 492 cdate 09 Mar 2002 493 mdate 18 Mar 2002 494 who bjh21 495 file dist/bind/lib/nameser/ns_parse.c : 1.3 496 file dist/dhcp/minires/ns_parse.c : 1.3 497 file dist/dhcp/omapip/result.c : 1.2 498 file dist/dhcp/server/failover.c : 1.3 499 file gnu/dist/toolchain/bfd/bfd.c : 1.2 500 file gnu/dist/toolchain/bfd/format.c : 1.2 501 file gnu/dist/toolchain/gdb/target.c : 1.2 502 file sys/kern/vfs_subr.c : 1.172 503 descr When checking that a potentially-unsigned enum is >= 0, assign 504 it to an int first. This is necessary to avoid "comparison is 505 always true" warnings with -fshort-enums. Casting to an int 506 really should be enough, but turns out not to be. 507 kcah 508 509 510 port sh3 511 512 hack gcc4-sh3-bz2 513 cdate Sun May 21 03:34:57 UTC 2006 514 mdate Fri May 16 13:13:00 UTC 2008 515 who mrg, tsutsui 516 file lib/libbz2/Makefile : 1.10 517 descr 518 The in-tree GCC 4.1-based compiler generated too-far 519 pc-relative addresses. Hack is to build with 520 -fno-loop-optimize. 521 kcah 522 523 524 port m68000 525 526 hack gcc4-m68000 527 cdate Fri Feb 8 10:29:37 PST 2008 528 mdate Sun May 4 15:37:19 UTC 2008 529 who mrg, tsutsui 530 file rescue/Makefile : 1.21 531 file sbin/dump_lfs/Makefile : 1.9 532 file sbin/fsck_ffs/Makefile : 1.35 533 file sbin/fsdb/Makefile : 1.22 534 file share/mk/sys.mk : 1.96 535 file usr.sbin/ndbootd/Makefile : 1.5 536 descr 537 Several internal compiler errors with gcc -O1 538 around 64bit integer arithmetic. 539 This hack uses -O1 and adds some -fno-tree-foo options 540 to avoid the problem. 541 This might be related with GCC Bugzilla Bug 32424. 542 kcah 543 544 545 port sparc64 546 547 hack disable optimzations for uvm_bio.c on 32 bit kernels 548 cdate Sun Mar 21 14:14:04 MET 2004 549 who martin 550 file sys/arch/sparc64/conf/Makefile.sparc64 : 1.53-1.54 551 file sys/arch/sparc64/conf/files.sparc64 : 1.93 552 descr 553 The sparc compiler miscompiles uvm_bio.c when using 554 any optimization. This results in ubc_release panics. 555 kcah 556 557 port mips 558 559 hack mips-shared-linker-load-address 560 cdate Fri Oct 7 08:33:10 UTC 2005 561 who simonb 562 file src/sys/kern/exec_elf32.c : 1.107 563 descr 564 With COMPAT_16 or previous enabled (which enables 565 ELF_INTERP_NON_RELOCATABLE) a recent ld.elf_so will 566 load and run at address 0. The check to fix this in 567 rev 1.107 only checks the first psection of the ELF 568 executable, which may not be loadable. A more correct 569 fix is to check the first loadable psection instead of 570 just the first psection. 571 kcah 572 573 hack mips-duplicate-ras-end-label 574 cdate Sat Sep 2 23:29:42 2006 575 who martin 576 file src/regress/sys/kern/ras/ras3/Makefile : 1.3 577 descr 578 Add -fno-reorder-blocks to CFLAGS to avoid duplicate 579 labels by duplicated __asm output from RAS_END() 580 macro. 581 kcah 582 583 hack mips-mcount-assembler-warning 584 cdate Tue Jul 29 14:16:52 UTC 2008 585 who lukem 586 file src/lib/libc/gmon/Makefile.inc : 1.8 587 descr 588 Workaround for PR port-mips/39192. 589 common/lib/libc/gmon/mcount.c generates a (fatal) 590 assembler warning on MIPS: 591 Warning: No .cprestore pseudo-op used in PIC code 592 Add COPTS.count.c+=-Wa,--no-warn to avoid -Wa,--fatal-warnings 593 kcah 594 595 port i386 596 597 hack use volatile intermediate variable to enforce rounding 598 cdate Tue Aug 1 22:15:55 MEST 2006 599 who drochner 600 file src/lib/libm/src/lrintf.c : 1.4 601 file src/lib/libm/src/s_rintf.c : 1.8 602 descr 603 gcc-4 does subsequent operations on "float" values within 604 the i387 FPU without rounding the intermediate results 605 kcah 606 607 port powerpc 608 609 hack avoid using __builtin_return_address(0) because it fails in 610 Xorg's module loader 611 cdate Sat Sep 27 03:52:05 UTC 2008 612 who macallan 613 file src/libexec/ld.elf_so/rtld.c : 1.121 614 descr 615 workaround for PR port-macppc/37812 616 kcah 617 618
Indexes created Wed Nov 05 19:10:08 GMT 2025