2010/3/11 "C. Bergström" <[email protected]>: > Shrikanth Kamath wrote: >> >> Just trying to understand the build dependency for ctfconvert... >> >> I see ctfconvert (cddl/usr.bin/ctfconvert/) has dependency on libctf.a >> (cddl/lib/libctf/) >> >> Now the snippet in bsd.lib.mk has this check for various target suffixes, >> >> .c.So: >> .if defined(CTFCONVERT) >> ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} >> .endif >> >> and sys.mk >> >> .c >> .if defined(CTFCONVERT) >> ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} >> .endif >> >> My query, libctf includes <bsd.lib.mk> in it's Makefile, so will the >> above >> not try to >> run 'ctfconvert' on libctf itself? >> > > I'm going to make some assumptions and go out on a limb here.. > > The CDDL code in FBSD came from OpenSolaris (specifically onnv-gate hg repo) > When OpenSolaris is built they convert stab debugging information over to > CTF (compressed text format?). This is done so that they can have debugging > information, but without the overhead of stab (or dwarf2). I don't know how > much of the original onnv-gate Makefiles came over from OpenSolaris, but > assuming the FBSD kernel doesn't need/use CTF format this dependency can and > probably should go away. (Only (k)mdb supports CTF that I'm aware of?) > > Hopefully this is useful information and I'm not too wrong or someone will > correct me
The CTF information is needed by DTrace. My guess is that it will run ctfconvert on itself so it should be there from a prior install or it is part of some early toolchain stuff. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
