[PATCH RFC v2 bpf-next 4/9] libbpf: Allow to resolve binary path in current directory
From: Jiri Olsa <jolsa@kernel.org>
Date: 2023-02-28 09:33:20
Also in:
bpf, linux-fsdevel, linux-mm, lkml
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Try to resolve uprobe/usdt binary path also in current directory, it's used in the test code in following changes. Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- tools/lib/bpf/libbpf.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 05c4db355f28..f72115e8b7f9 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c@@ -10727,17 +10727,19 @@ static const char *arch_specific_lib_paths(void) /* Get full path to program/shared library. */ static int resolve_full_path(const char *file, char *result, size_t result_sz) { - const char *search_paths[3] = {}; + const char *search_paths[4] = {}; int i, perm; if (str_has_sfx(file, ".so") || strstr(file, ".so.")) { search_paths[0] = getenv("LD_LIBRARY_PATH"); search_paths[1] = "/usr/lib64:/usr/lib"; search_paths[2] = arch_specific_lib_paths(); + search_paths[3] = "."; perm = R_OK; } else { search_paths[0] = getenv("PATH"); search_paths[1] = "/usr/bin:/usr/sbin"; + search_paths[2] = "."; perm = R_OK | X_OK; }
--
2.39.2