From 666ce1753c2df970a86726883918466f69ace0fc Mon Sep 17 00:00:00 2001 From: "Daniel T. Lee" Date: Thu, 5 Dec 2019 17:01:13 +0900 Subject: samples: bpf: Replace symbol compare of trace_event [ Upstream commit bba1b2a890253528c45aa66cf856f289a215bfbc ] Previously, when this sample is added, commit 1c47910ef8013 ("samples/bpf: add perf_event+bpf example"), a symbol 'sys_read' and 'sys_write' has been used without no prefixes. But currently there are no exact symbols with these under kallsyms and this leads to failure. This commit changes exact compare to substring compare to keep compatible with exact symbol or prefixed symbol. Fixes: 1c47910ef8013 ("samples/bpf: add perf_event+bpf example") Signed-off-by: Daniel T. Lee Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20191205080114.19766-2-danieltimlee@gmail.com Signed-off-by: Sasha Levin --- samples/bpf/trace_event_user.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'samples') diff --git a/samples/bpf/trace_event_user.c b/samples/bpf/trace_event_user.c index 9a130d31ecf2..6fbb5eb9daf3 100644 --- a/samples/bpf/trace_event_user.c +++ b/samples/bpf/trace_event_user.c @@ -33,9 +33,9 @@ static void print_ksym(__u64 addr) return; sym = ksym_search(addr); printf("%s;", sym->name); - if (!strcmp(sym->name, "sys_read")) + if (!strstr(sym->name, "sys_read")) sys_read_seen = true; - else if (!strcmp(sym->name, "sys_write")) + else if (!strstr(sym->name, "sys_write")) sys_write_seen = true; } -- cgit v1.2.3