Date: Mon, 1 Apr 2013 20:04:45 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Andriy Gapon <avg@freebsd.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r247962 - head/cddl/contrib/opensolaris/tools/ctf/cvt Message-ID: <784ED932-664A-4880-8BCA-A7872E947920@FreeBSD.org> In-Reply-To: <51592416.7090003@FreeBSD.org> References: <201303072243.r27Mhopv039449@svn.freebsd.org> <51592416.7090003@FreeBSD.org>
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[-- Attachment #1 --] On Apr 1, 2013, at 08:07, Andriy Gapon <avg@freebsd.org> wrote: > on 08/03/2013 00:43 Dimitry Andric said the following: >> Author: dim >> Date: Thu Mar 7 22:43:50 2013 >> New Revision: 247962 >> URL: http://svnweb.freebsd.org/changeset/base/247962 >> >> Log: >> Fix error in r247960: actually assign the basename to match.iim_file. > > I've got some bad news. > > First of all, sorry for not being thorough enough when this change was > originally proposed. I rebuilt only ctfconvert with the patch, but ctfmerge was > left alone. > > It seems that r247960 + r247962 (this commit) broke ctfmerge in my environment > (head + clang). While .o files have expected ctf information, combined files > miss ctf data for functions. Do you have a good test case? I tried building a few kernel modules, but I do see ctf data for functions, at least in ctfdump output. Also, a simple test case with a pair of .o files, each containing a function, seems to work properly when processed with ctfmerge. > I haven't dug yet into this problem, but I suspect that there is some mismatch > at another place (or even multiple places) where STT_FILE is used. The only other place is cddl/contrib/opensolaris/tools/ctf/cvt/input.c, so I more or less blindly made the attached diff, which might solve the problem. Can you please try it in your environment? [-- Attachment #2 --] Index: cddl/contrib/opensolaris/tools/ctf/cvt/input.c =================================================================== --- cddl/contrib/opensolaris/tools/ctf/cvt/input.c (revision 248699) +++ cddl/contrib/opensolaris/tools/ctf/cvt/input.c (working copy) @@ -387,6 +387,7 @@ GElf_Sym * symit_next(symit_data_t *si, int type) { GElf_Sym sym; + char *bname; int check_sym = (type == STT_OBJECT || type == STT_FUNC); for (; si->si_next < si->si_nument; si->si_next++) { @@ -394,8 +395,10 @@ symit_next(symit_data_t *si, int type) gelf_getsym(si->si_symd, si->si_next, &sym); si->si_curname = (caddr_t)si->si_strd->d_buf + sym.st_name; - if (GELF_ST_TYPE(sym.st_info) == STT_FILE) - si->si_curfile = si->si_curname; + if (GELF_ST_TYPE(sym.st_info) == STT_FILE) { + bname = strrchr(si->si_curname, '/'); + si->si_curfile = bname == NULL ? si->si_curname : bname + 1; + } if (GELF_ST_TYPE(sym.st_info) != type || sym.st_shndx == SHN_UNDEF)
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