Date: Fri, 13 Sep 2002 23:05:35 +0200 From: Thomas Moestl <tmoestl@gmx.net> To: John Polstra <jdp@polstra.com> Cc: sparc@freebsd.org, jhb@freebsd.org Subject: Re: No gdb yet? Message-ID: <20020913210535.GC6560@crow.dom2ip.de> In-Reply-To: <200209132045.g8DKjloj035471@vashon.polstra.com> References: <XFMail.20020913141454.jhb@FreeBSD.org> <200209132045.g8DKjloj035471@vashon.polstra.com>
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On Fri, 2002/09/13 at 13:45:47 -0700, John Polstra wrote: > In article <XFMail.20020913141454.jhb@FreeBSD.org>, John Baldwin > <jhb@FreeBSD.ORG> wrote: > > > Jake has some sort of core dump analyzer. > > Hey, Jake! Yoohoo! Could you point me to a copy of it? :-) It's at http://people.freebsd.org/~jake/coredump.tar I've attached a small patch that should make it work better with stripped dynamic objects (particularly rtld) by looking for symbols in the dynamic symtab too. - Thomas -- Thomas Moestl <tmoestl@gmx.net> http://www.tu-bs.de/~y0015675/ <tmm@FreeBSD.org> http://people.FreeBSD.org/~tmm/ PGP fingerprint: 1C97 A604 2BD0 E492 51D0 9C0F 1FE6 4F1D 419C 776C diff -ur coredump/coredump.c coredump.tmm/coredump.c --- coredump/coredump.c Thu Jul 18 00:27:29 2002 +++ coredump.tmm/coredump.c Fri Sep 13 23:04:02 2002 @@ -252,18 +252,26 @@ static Elf_Sym * elf_find_sym_by_name(Elf_Ehdr *e, char *name) { - Elf_Shdr *sh; + Elf_Shdr *shstr, *shtab; Elf_Sym *st; char *strtab; int i; - if ((sh = elf_find_shdr(e, ".strtab", 0)) == NULL) + if ((shstr = elf_find_shdr(e, ".strtab", 0)) != NULL && + (shtab = elf_find_shdr(e, ".symtab", 0)) != NULL) { + strtab = (char *)e + shstr->sh_offset; + st = (Elf_Sym *)((char *)e + shtab->sh_offset); + for (i = 0; i < shtab->sh_size / sizeof(*st); i++) { + if (strcmp(name, strtab + st[i].st_name) == 0) + return (&st[i]); + } + } + if ((shstr = elf_find_shdr(e, ".dynstr", 0)) == NULL || + (shtab = elf_find_shdr(e, ".dynsym", 0)) == NULL) return (NULL); - strtab = (char *)e + sh->sh_offset; - if ((sh = elf_find_shdr(e, ".symtab", 0)) == NULL) - return (NULL); - st = (Elf_Sym *)((char *)e + sh->sh_offset); - for (i = 0; i < sh->sh_size / sizeof(*st); i++) { + strtab = (char *)e + shstr->sh_offset; + st = (Elf_Sym *)((char *)e + shtab->sh_offset); + for (i = 0; i < shtab->sh_size / sizeof(*st); i++) { if (strcmp(name, strtab + st[i].st_name) == 0) return (&st[i]); } To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-sparc" in the body of the message
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