Hello, in Yocto or any other build system which uses "-Werror=maybe-uninitialized" flag, there is a problem while SystemTap is building. Initialization "this_column_size" and "num" variables as bellow fix this problem. From efca812046fa43ba778ebb4b065325b63b9c2b78 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Kotyla?= <michal.kotyla@3mdeb.com> Date: Mon, 8 Nov 2021 10:06:15 +0100 Subject: [PATCH] bpf-translate.cxx: Initialize variables 'num' and 'this_column_size' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Michał Kotyla <michal.kotyla@3mdeb.com> --- bpf-translate.cxx | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/bpf-translate.cxx b/bpf-translate.cxx index 3f45c721f..956f09d00 100644 --- a/bpf-translate.cxx +++ b/bpf-translate.cxx @@ -1203,7 +1203,7 @@ bpf_unparser::emit_asm_arg (const asm_stmt &stmt, const std::string &arg, { /* arg is a register number */ std::string reg = arg[0] == 'r' ? arg.substr(1) : arg; - unsigned long num; + unsigned long num = 0; bool parsed = false; try { num = stoul(reg, 0, 0); @@ -1943,7 +1943,7 @@ bpf_unparser::visit_foreach_loop(foreach_loop* s) auto type = arraydecl->index_types[k]; if (type != pe_long && type != pe_string) throw SEMANTIC_ERROR(_("unhandled foreach index type"), s->tok); - int this_column_size; + int this_column_size = 0; // PR23875: foreach should handle string keys if (type == pe_long) { -- 2.25.1 Best regards, -- Michał Kotyla Embedded Linux Developer GPG: 14FC54DC259CF70A https://3mdeb.com | @3mdeb_com