Re: [PATCH 05/21] perf: rewire generic library stuff, p1

[Arnaldo Carvalho de Melo]

Em Thu, Jul 01, 2010 at 10:14:18PM +0200, Borislav Petkov escreveu:
> From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxx>
> Date: Thu, Jul 01, 2010 at 01:14:49PM -0400
> > But we have one other problem:

> > [acme@emilia linux-2.6-tip]$ make O=~/git/build/perf -C tools/
> > make: Entering directory `/home/acme/git/linux-2.6-tip/tools'
> > make[1]: Entering directory `/home/acme/git/linux-2.6-tip/tools/lib'
> > make[1]: `lklib.a' is up to date.
> > make[1]: Leaving directory `/home/acme/git/linux-2.6-tip/tools/lib'
> > make[1]: Entering directory `/home/acme/git/linux-2.6-tip/tools/perf'
> >     GEN perf-archive
> > make[1]: Leaving directory `/home/acme/git/linux-2.6-tip/tools/perf'
> > make: Leaving directory `/home/acme/git/linux-2.6-tip/tools'
> > [acme@emilia linux-2.6-tip]$ make O=~/git/build/perf -C tools/perf/
> > make: Entering directory `/home/acme/git/linux-2.6-tip/tools/perf'
> >     * new build flags or prefix
> >     CC /home/acme/git/build/perf/perf.o
> >     CC /home/acme/git/build/perf/builtin-annotate.o
> > 
> > The logic that detects "new build flags or prefix" gets confused when we
> > alternate between tools/ and tools/perf/, checking that.
> 
> This might need an up-to-date check for the lklib.a archive first and
> not do "new build flags or prefix" if it is. Yeah, this is a different
> library and the logic doesn't know about it.

I got sidetracked, but this is what is in $(O)/PERF-CFLAGS for
make -C tools/

[acme@emilia linux-2.6-tip]$ cat ../build/perf/PERF-CFLAGS 
-ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Wformat-y2k -Wshadow -Winit-self -Wpacked -Wredundant-decls -Wstack-protector -Wstrict-aliasing=3 -Wswitch-default -Wswitch-enum -Wno-system-headers -Wundef -Wvolatile-register-var -Wwrite-strings -Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wstrict-prototypes -Wdeclaration-after-statement  -fstack-protector-all -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -I/home/acme/git/linux-2.6-tip/tools/lib -I/home/acme/git/linux-2.6-tip/tools/perf -I/home/acme/git/linux-2.6-tip/tools/perf/util/include -Iutil/include -Iarch/x86/include -I../lib/ -I/home/acme/git/build/perf/ -DLIBELF_NO_MMAP -I/usr/include/elfutils -DDWARF_SUPPORT -I/usr/include/slang -DSHA1_HEADER='<openssl/sha.h>' : /home/acme/bin:libexec/perf-core:share/perf-core/templates:/home/acme
[acme@emilia linux-2.6-tip]$

And this is its contents if we use "make -C tools/perf/"

-ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2   -fstack-protector-all -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Iutil/include -Iarch/x86/include -I../lib/ -I/home/acme/git/build/perf/ -DLIBELF_NO_MMAP -I/usr/include/elfutils -DDWARF_SUPPORT -I/usr/include/slang -DSHA1_HEADER='<openssl/sha.h>' : /home/acme/bin:libexec/perf-core:share/perf-core/templates:/home/acme

Its just a matter of making both match :-)

- Arnaldo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/