Pegasus Mc Cleaft schrieb am 2010-03-23: > -----Original Message----- > >2. i wasn't able to reproduce your `make -V MACHINE_CPU > >-DCPUTYPE=native` > >examples. for me `make` prints the same no matter what CPUTYPE is > >set to:
> >otaku% make -V MACHINE_CPU -DCPUTYPE=native > >amd64 sse2 sse > >otaku% make -V MACHINE_CPU -DCPUTYPE=nocona > >amd64 sse2 sse > >otaku% make -V MACHINE_CPU -DCPUTYPE=i386 > >amd64 sse2 sse > >otaku% make -V MACHINE_CPU -DCPUTYPE=lalalala > >amd64 sse2 sse > >..oh and of course i ran these commands with no CPUTYPE set in > >make.conf. > ;) > This is interesting. I tried the same thing on my computer (AMD64 - > Core2 > Quad) and I get the following > (Without CPUTYPE?=native in /etc/make) > feathers$ make -V MACHINE_CPU -DCPUTYPE=native > amd64 sse2 sse > (With CPUTYPE?=native) > feathers$ make -V MACHINE_CPU -DCPUTYPE=native > unknown amd64 sse2 sse mmx > (For both) > feathers$ gcc -v -x c -E -mtune=native /dev/null -o /dev/null 2>&1 | > grep > mtune > /usr/libexec/cc1 -E -quiet -v -D_LONGLONG /dev/null -o /dev/null > -mtune=generic hmm...that's odd indeed. i finally was able to do some debugging. i've attached two files: running gcc -v -x c -E -mtune=native /dev/null and gcc -v -x c -E -mtune=nocona /dev/null > Peg -- Alexander Best
`gdb -v -x c -E -mtune=native /dev/null`: Breakpoint 26, strlen (str=0x7fffffffed6e "/dev/null") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x7fffffffed73 "null") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x43e04a "include") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x458a30 "") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x458a30 "") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x43e5eb "-m") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 26, strlen (str=0x80a2d8 <Error reading address 0x80a2d8: Bad address>) at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK);
`gdb -v -x c -E -mtune=nocona /dev/null`: Breakpoint 1, strlen (str=0x7fffffffed73 "null") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x43e04a "include") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x458a30 "") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x458a30 "") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x7fffffffed56 "v") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x7fffffffed5e "E") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK); (gdb) Continuing. Breakpoint 1, strlen (str=0x7fffffffed61 "mtune=nocona") at /usr/src/lib/libc/string/strlen.c:99 99 lp = (const unsigned long *)((uintptr_t)str & ~LONGPTR_MASK);
_______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
