HACKS revision 1.110.2.1
1 # $NetBSD: HACKS,v 1.110.2.1 2008/11/20 02:56:40 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 port vax 324 325 hack gcc4/vax ICE 326 cdate 327 who tsutsui 328 file sys/arch/vax/conf/Makefile.vax 329 descr 330 GCC4 on vax gets ICE on compiling sys/ddb/db_command.c. 331 -fno-tree-ter prevents it so add it to COPTS. 332 kcah 333 334 hack gcc4/vax compiler crash 335 cdate Fri Jun 30 22:39:12 PDT 2006 336 who mrg 337 file bin/csh/Makefile : 1.27 338 file lib/i18n_module/UTF7/Makefile : 1.2 339 descr 340 GCC4 on vax crashes. -O0 stops it happening so far... 341 kcah 342 343 hack gcc 2.95/vax doesn't like abort being used as function pointer 344 cdate Tue Dec 13 05:54:50 GMT 2005 345 who jmc 346 file lib/libc/rpc/svc_vc.c 1.15 347 descr 348 Provide a local definition for abort which doesn't include 349 the noreturn attribute which trips up gcc 2.95 on vax. 350 kcah 351 352 hack gcc 2.95/vax doesn't have stdbool.h and gettext needs it 353 cdate Mon May 9 12:16:22 CDT 2005 354 who jmc 355 file gnu/usr.bin/gettext/Makefile.inc.prog 1.5 356 gnu/usr.bin/gettext/libgrep/Makefile 1.3 357 gnu/usr.bin/gettext/libnlspr/Makefile 1.5 358 gnu/usr.bin/gettext/libnlsut/Makefile 1.3 359 descr 360 The latest gettext assumes a C99 environment or at least 361 configure checks to work around this. As we don't use configure 362 provide a stdbool.h for vax builds locally in directories from 363 the template provided by the gettext code. 364 kcah 365 366 hack gcc 2.95/vax cannot handle __builtin_ffs() 367 cdate Fri Aug 23 21:31:15 CEST 2002 368 who ragge 369 file sys/lib/libkern/libkern.h : 1.42 370 descr 371 __builtin_ffs() is ifdef'd away if __vax__. Matt Thomas has 372 added this feature to GCC 3 so it can be removed when switching. 373 kcah 374 375 hack gcc 2.95/vax libbz2 376 mdate 27 Jun 2002 377 who thorpej 378 file lib/libbz2/Makefile 379 descr 380 libbz2 is mis-compiled with optimization with GCC 2.95.3 381 on VAX. -O0 works around this problem. 382 kcah 383 384 hack vax Toolchain bug 385 cdate 28 Mar 2003 386 who he 387 file sys/arch/vax/vax/intvec.S : 1.5 388 descr 389 Workaround for PR toolchain/20924. The assembler apparently 390 tries to range-check byte offsets when it doesn't have 391 sufficient information to make that decision. 392 Workaround uses `brw' instead of `brb' instruction. 393 kcah 394 395 hack vax gcc 2.95.3 -Wuninitialized workarounds 396 cdate 6 Nov 2003 397 who he 398 file sys/dev/bi/if_ni.c : 1.22 399 file sys/arch/vax/vax/ctu.c : 1.20 400 descr 401 Workaround for gcc 2.95.3 failing to detect that certain 402 variables will be initialized; so that this code compiles 403 with -Wuninitialized. Should be reviewed and possibly 404 reverted when gcc 3.3.2 is ready for vax. 405 kcah 406 407 hack vax gcc 2.95.3 structure initialization 408 cdat 13 May 2004 409 who cl 410 file sys/miscfs/kernfs/kernfs_vnops.c : 1.104 411 descr 412 Workaround for gcc 2.95.3 failing to initialize structures 413 and/or unions inside structures using nested designators. 414 Should be reverted when gcc >=3.3.3 is ready for vax. 415 kcah 416 417 hack vax gcc 2.95.3 needs -I. to build nslexer.c 418 cdat 6 Jun 2004 419 who mhitch 420 file lib/libc/arch/vax/Makefile.inc : 1.6 421 descr 422 It appears necessary to add -I. to CPPFLAGS when building 423 nslesxer.c. This may be caused by gcc 2.95.3 being used. 424 Should be reverted when a newer gcc is ready for vax. 425 kcah 426 427 hack vax gcc 2.95.3 doesn't understand "-std=c99" 428 cdat 5 April 2005 429 who tron 430 file src/share/mk/bsd.sys.mk 431 descr 432 We cannot use "-std=c99" for compiler warning level 4 and above 433 because gcc 2.95.3 doesn't support that option. 434 kcah 435 436 hack declare boolean_t in two IPF user-mode programs 437 cdate Tue Mar 7 19:19:20 CET 2006 438 who he 439 file dist/ipf/ipsend/iptests.c : 1.8 440 dist/ipf/ipsend/sock.c : 1.7 441 descr 442 The IPF user-mode programs ipsend and iptest first 443 include <sys/types.h> without _KERNEL defined, and 444 later include <sys/file.h> with _KERNEL defined. 445 This causes a build failure when building for vax, 446 since <sys/device.h> ends up being included without 447 bollean_t being defined by <sys/types.h>. 448 Build failure and further details documented in 449 PR#32907. 450 kcah 451 452 hack pcc 0.9.9 large string literals 453 cdat 8 July 2008 454 who gmcgarry 455 file sys/conf/param.c : 1.58 456 descr 457 Workaround for pcc 0.9.9 not handling large string literals 458 which causes kernels with 'options INCLUDE_CONFIG_FILE' to 459 fail compilation. 460 There is a proposal on the pcc mailing list to stuff config 461 file in ELF section. 462 kcah 463 464 hack xorg warnings 465 cdat 30 July 2008 466 who mrg 467 file external/mit/xorg/lib/libSM/Makefile : 1.2 468 external/mit/xorg/lib/libX11/Makefile.libx11 : 1.2 469 external/mit/xorg/lib/libXext/Makefile : 1.2 470 external/mit/xorg/lib/libXfont/Makefile : 1.2 471 descr 472 Disable several warnings or use -Wno-error across Xorg sources 473 while we get them working 474 kcah 475 476 port arm 477 478 hack gcc-unsigned-compare 479 cdate 09 Mar 2002 480 mdate 18 Mar 2002 481 who bjh21 482 file dist/bind/lib/nameser/ns_parse.c : 1.3 483 file dist/dhcp/minires/ns_parse.c : 1.3 484 file dist/dhcp/omapip/result.c : 1.2 485 file dist/dhcp/server/failover.c : 1.3 486 file gnu/dist/toolchain/bfd/bfd.c : 1.2 487 file gnu/dist/toolchain/bfd/format.c : 1.2 488 file gnu/dist/toolchain/gdb/target.c : 1.2 489 file sys/kern/vfs_subr.c : 1.172 490 descr When checking that a potentially-unsigned enum is >= 0, assign 491 it to an int first. This is necessary to avoid "comparison is 492 always true" warnings with -fshort-enums. Casting to an int 493 really should be enough, but turns out not to be. 494 kcah 495 496 497 port sh3 498 499 hack gcc4-sh3-bz2 500 cdate Sun May 21 03:34:57 UTC 2006 501 mdate Fri May 16 13:13:00 UTC 2008 502 who mrg, tsutsui 503 file lib/libbz2/Makefile : 1.10 504 descr 505 The in-tree GCC 4.1-based compiler generated too-far 506 pc-relative addresses. Hack is to build with 507 -fno-loop-optimize. 508 kcah 509 510 511 port m68000 512 513 hack gcc4-m68000 514 cdate Fri Feb 8 10:29:37 PST 2008 515 mdate Sun May 4 15:37:19 UTC 2008 516 who mrg, tsutsui 517 file rescue/Makefile : 1.21 518 file sbin/dump_lfs/Makefile : 1.9 519 file sbin/fsck_ffs/Makefile : 1.35 520 file sbin/fsdb/Makefile : 1.22 521 file share/mk/sys.mk : 1.96 522 file usr.sbin/ndbootd/Makefile : 1.5 523 descr 524 Several internal compiler errors with gcc -O1 525 around 64bit integer arithmetic. 526 This hack uses -O1 and adds some -fno-tree-foo options 527 to avoid the problem. 528 This might be related with GCC Bugzilla Bug 32424. 529 kcah 530 531 532 port sparc64 533 534 hack disable optimzations for uvm_bio.c on 32 bit kernels 535 cdate Sun Mar 21 14:14:04 MET 2004 536 who martin 537 file sys/arch/sparc64/conf/Makefile.sparc64 : 1.53-1.54 538 file sys/arch/sparc64/conf/files.sparc64 : 1.93 539 descr 540 The sparc compiler miscompiles uvm_bio.c when using 541 any optimization. This results in ubc_release panics. 542 kcah 543 544 port mips 545 546 hack mips-shared-linker-load-address 547 cdate Fri Oct 7 08:33:10 UTC 2005 548 who simonb 549 file src/sys/kern/exec_elf32.c : 1.107 550 descr 551 With COMPAT_16 or previous enabled (which enables 552 ELF_INTERP_NON_RELOCATABLE) a recent ld.elf_so will 553 load and run at address 0. The check to fix this in 554 rev 1.107 only checks the first psection of the ELF 555 executable, which may not be loadable. A more correct 556 fix is to check the first loadable psection instead of 557 just the first psection. 558 kcah 559 560 hack mips-duplicate-ras-end-label 561 cdate Sat Sep 2 23:29:42 2006 562 who martin 563 file src/regress/sys/kern/ras/ras3/Makefile : 1.3 564 descr 565 Add -fno-reorder-blocks to CFLAGS to avoid duplicate 566 labels by duplicated __asm output from RAS_END() 567 macro. 568 kcah 569 570 hack mips-mcount-assembler-warning 571 cdate Tue Jul 29 14:16:52 UTC 2008 572 who lukem 573 file src/lib/libc/gmon/Makefile.inc : 1.8 574 descr 575 Workaround for PR port-mips/39192. 576 common/lib/libc/gmon/mcount.c generates a (fatal) 577 assembler warning on MIPS: 578 Warning: No .cprestore pseudo-op used in PIC code 579 Add COPTS.count.c+=-Wa,--no-warn to avoid -Wa,--fatal-warnings 580 kcah 581 582 port i386 583 584 hack use volatile intermediate variable to enforce rounding 585 cdate Tue Aug 1 22:15:55 MEST 2006 586 who drochner 587 file src/lib/libm/src/lrintf.c : 1.4 588 file src/lib/libm/src/s_rintf.c : 1.8 589 descr 590 gcc-4 does subsequent operations on "float" values within 591 the i387 FPU without rounding the intermediate results 592 kcah 593 594 port powerpc 595 596 hack avoid using __builtin_return_address(0) because it fails in 597 Xorg's module loader 598 cdate Sat Sep 27 03:52:05 UTC 2008 599 who macallan 600 file src/libexec/ld.elf_so/rtld.c : 1.121 601 descr 602 workaround for PR port-macppc/37812 603 kcah 604 605
Indexes created Wed Nov 05 21:10:10 GMT 2025