From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============5250564892937879822==" MIME-Version: 1.0 From: Mark Wielaard To: elfutils-devel@lists.fedorahosted.org Subject: [PATCH] libdw: Initialize variables in getcfi_gnu_eh_frame. Date: Thu, 27 Nov 2014 23:45:38 +0100 Message-ID: <1417128338-28732-1-git-send-email-mjw@redhat.com> --===============5250564892937879822== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Some older GCCs are not clever enough to realize that when search_table is NULL not only are search_table_entries and search_table_encoding not initialized, they are also not used. Giving "may be used uninitialized" errors. Signed-off-by: Mark Wielaard --- libdw/ChangeLog | 5 +++++ libdw/dwarf_getcfi_elf.c | 6 +++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/libdw/ChangeLog b/libdw/ChangeLog index 37f94df..c199707 100644 --- a/libdw/ChangeLog +++ b/libdw/ChangeLog @@ -1,3 +1,8 @@ +2014-11-27 Mark Wielaard + + * dwarf_getcfi_elf.c (getcfi_gnu_eh_frame): Initialize + search_table_entries and search_table_encoding. + 2014-11-24 Mark Wielaard = * dwarf_getsrclines.c (read_srclines): Check line_range is not zero diff --git a/libdw/dwarf_getcfi_elf.c b/libdw/dwarf_getcfi_elf.c index a423ef3..61ca60d 100644 --- a/libdw/dwarf_getcfi_elf.c +++ b/libdw/dwarf_getcfi_elf.c @@ -1,5 +1,5 @@ /* Get CFI from ELF file's exception-handling info. - Copyright (C) 2009-2010 Red Hat, Inc. + Copyright (C) 2009-2010, 2014 Red Hat, Inc. This file is part of elfutils. = This file is free software; you can redistribute it and/or modify @@ -140,8 +140,8 @@ getcfi_gnu_eh_frame (Elf *elf, const GElf_Ehdr *ehdr, c= onst GElf_Phdr *phdr) } = Dwarf_Addr eh_frame_ptr; - size_t search_table_entries; - uint8_t search_table_encoding; + size_t search_table_entries =3D 0; + uint8_t search_table_encoding =3D 0; const uint8_t *search_table =3D parse_eh_frame_hdr (data->d_buf, phdr->p= _filesz, phdr->p_vaddr, ehdr, &eh_frame_ptr, -- = 1.9.3 --===============5250564892937879822==--