Date: Fri, 12 Jan 2018 11:15:52 -0800 From: Mark Millard <markmi@dsl-only.net> To: bygg@cafax.se, FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: Re: elfdump [a forward to toolchain] Message-ID: <62685F43-93A3-4380-B2C2-7FF386173999@dsl-only.net>
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Johnny Eriksson bygg at cafax.se wrote on Fri Jan 12 10:59:10 UTC 2018 : > When parsing a 64-bit big-endian elf file (on a 64-bit X86-64 system), > the sh_flags entry in the section header is mis-parsed since the routine > used only reads a 32-bit value. > > *** elfdump.c Fri Jan 12 10:43:35 2018 > --- elfdump.c.org Fri Jan 12 10:42:11 2018 > *************** > *** 798,804 **** > v = (char *)sh + i * shentsize; > name = elf_get_word(e, v, SH_NAME); > type = elf_get_word(e, v, SH_TYPE); > ! flags = elf_get_size(e, v, SH_FLAGS); > addr = elf_get_addr(e, v, SH_ADDR); > offset = elf_get_off(e, v, SH_OFFSET); > size = elf_get_size(e, v, SH_SIZE); > --- 798,804 ---- > v = (char *)sh + i * shentsize; > name = elf_get_word(e, v, SH_NAME); > type = elf_get_word(e, v, SH_TYPE); > ! flags = elf_get_word(e, v, SH_FLAGS); > addr = elf_get_addr(e, v, SH_ADDR); > offset = elf_get_off(e, v, SH_OFFSET); > size = elf_get_size(e, v, SH_SIZE); > > Possibly the (new) call to elf_get_size() should be changed to something > a little bit more informative. > > --Johnny === Mark Millard markmi at dsl-only.net
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