From 11c1ea6f1a9bc97bf857fd12f72eacb6c69794e2 Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Sat, 16 Mar 2019 16:05:43 +0800 Subject: perf tools: Fix errors under optimization level '-Og' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Optimization level '-Og' offers a reasonable level of optimization while maintaining fast compilation and a good debugging experience. This patch tries to make it work. $ make DEBUG=1 EXTRA_CFLAGS='-Og' bench/epoll-ctl.c: In function ‘do_threads’: bench/epoll-ctl.c:274:9: error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized] return ret; ^~~ ... Signed-off-by: Changbin Du Reviewed-by: Jiri Olsa Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt (VMware) Link: http://lkml.kernel.org/r/20190316080556.3075-4-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/bpf/libbpf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/lib') diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index f5eb60379c8d..4884557aa17f 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -622,7 +622,7 @@ bpf_object__init_maps(struct bpf_object *obj, int flags) bool strict = !(flags & MAPS_RELAX_COMPAT); int i, map_idx, map_def_sz, nr_maps = 0; Elf_Scn *scn; - Elf_Data *data; + Elf_Data *data = NULL; Elf_Data *symbols = obj->efile.symbols; if (obj->efile.maps_shndx < 0) -- cgit