From a49dd8dd482da6a8131752f8312a06aa6599063c Mon Sep 17 00:00:00 2001 From: Jan Kratochvil Date: Sun, 26 Feb 2017 16:54:51 +0100 Subject: [PATCH] DWARF-5: Initialization due to a false compiler warning MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit gcc-6.3.1-1.fc25.x86_64 dwarf2read.c: In function ‘void create_debug_type_hash_table(dwo_file*, dwarf2_section_info*, htab*&, rcuh_kind)’: dwarf2read.c:4776:32: error: ‘header.comp_unit_head::type_offset_in_tu.cu_offset::cu_off’ may be used uninitialized in this function [-Werror=maybe-uninitialized] dwarf2read.c:4816:21: error: ‘header.comp_unit_head::signature’ may be used uninitialized in this function [-Werror=maybe-uninitialized] cc1plus: all warnings being treated as errors gdb/ChangeLog 2017-02-26 Jan Kratochvil * dwarf2read.c (create_debug_type_hash_table): Initialize header.signature and header.type_offset_in_tu. --- gdb/ChangeLog | 5 +++++ gdb/dwarf2read.c | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index ed697b372c8..ccfb4e23c94 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2017-02-26 Jan Kratochvil + + * dwarf2read.c (create_debug_type_hash_table): Initialize + header.signature and header.type_offset_in_tu. + 2017-02-24 Pedro Alves * symtab.c (make_file_symbol_completion_list_1): Use diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index f1197509727..40b99d9cca0 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -4728,6 +4728,10 @@ create_debug_type_hash_table (struct dwo_file *dwo_file, offset.sect_off = ptr - section->buffer; + /* Initialize it due to a false compiler warning. */ + header.signature = -1; + header.type_offset_in_tu.cu_off = -1; + /* We need to read the type's signature in order to build the hash table, but we don't need anything else just yet. */ -- 2.30.2