Package: g++-4.4 Version: 4.4.4-9 Severity: normal As specified in the subject line, on an UltraSPARC (sparc64), g++ generates 32-bit binaries by default while gcc generates 64-bit binaries by default. This is not only bizarre, but it makes the traditional instructions to link combinations of C and C++ with g++ difficult. My objection is not to generating one or the other (although it would be nice to generate sparc64 binaries automatically if the machine is sparc64) but that gcc and g++ behave differently. foo.c is basically the source to /bin/true. blackhole ok % make ls -l total 16 lrwxrwxrwx 1 bmc bmc 5 Aug 23 21:58 bar.cc -> foo.c -rw-r--r-- 1 bmc bmc 30 Aug 23 21:58 foo.c -rw-r--r-- 1 bmc bmc 191 Aug 23 22:24 Makefile uname -a Linux blackhole 2.6.32-5-sparc64 #1 Sat Jul 24 04:11:04 UTC 2010 sparc64 GNU/Linux dpkg -l gcc-multilib g++-multilib Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-=============================-=============================-========================================================================== ii g++-multilib 4:4.4.4-2 The GNU C++ compiler (multilib files) ii gcc-multilib 4:4.4.4-2 The GNU C compiler (multilib files) cc foo.c -o foo g++ bar.cc -o bar cc -c -o foo.o foo.c g++ -o baz foo.o /usr/bin/ld: sparc:v9 architecture of input file `foo.o' is incompatible with sparc:v8plus output collect2: ld returned 1 exit status make: [baz] Error 1 (ignored) file foo bar baz foo: ELF 64-bit MSB executable, SPARC V9, relaxed memory ordering, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped bar: ELF 32-bit MSB executable, SPARC32PLUS, V8+ Required, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped baz: ERROR: cannot open `baz' (No such file or directory) make: *** [file] Error 1 The system information has been elided because this was filed from a different box. -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
Attachment:
signature.asc
Description: Digital signature