Generate a bpf_preload_ops structure, to specify the kernel module and the preload method.
Signed-off-by: Roberto Sassu roberto.sassu@huawei.com --- kernel/bpf/preload/bpf_preload_kern.c | 5 ----- kernel/bpf/preload/iterators/iterators.lskel.h | 5 +++++ tools/bpf/bpftool/gen.c | 13 +++++++++++++ 3 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/kernel/bpf/preload/bpf_preload_kern.c b/kernel/bpf/preload/bpf_preload_kern.c index 35e9abd1a668..3839af367200 100644 --- a/kernel/bpf/preload/bpf_preload_kern.c +++ b/kernel/bpf/preload/bpf_preload_kern.c @@ -5,11 +5,6 @@ #include <linux/bpf_preload.h> #include "iterators/iterators.lskel.h"
-static struct bpf_preload_ops ops = { - .preload = preload, - .owner = THIS_MODULE, -}; - static int __init load(void) { int err; diff --git a/kernel/bpf/preload/iterators/iterators.lskel.h b/kernel/bpf/preload/iterators/iterators.lskel.h index 6faf3708be01..7595fc283a65 100644 --- a/kernel/bpf/preload/iterators/iterators.lskel.h +++ b/kernel/bpf/preload/iterators/iterators.lskel.h @@ -474,6 +474,11 @@ static int preload(struct dentry *parent) return err; }
+static struct bpf_preload_ops ops = { + .preload = preload, + .owner = THIS_MODULE, +}; + static int load_skel(void) { int err; diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c index 28b1fe718248..5593cbee1846 100644 --- a/tools/bpf/bpftool/gen.c +++ b/tools/bpf/bpftool/gen.c @@ -841,6 +841,18 @@ static void codegen_preload(struct bpf_object *obj, const char *obj_name) "); }
+static void codegen_preload_ops(void) +{ + codegen("\ + \n\ + \n\ + static struct bpf_preload_ops ops = { \n\ + .preload = preload, \n\ + .owner = THIS_MODULE, \n\ + }; \n\ + "); +} + static void codegen_preload_load(struct bpf_object *obj, const char *obj_name) { struct bpf_program *prog; @@ -1076,6 +1088,7 @@ static int gen_trace(struct bpf_object *obj, const char *obj_name, const char *h codegen_preload_vars(obj, obj_name); codegen_preload_free(obj, obj_name); codegen_preload(obj, obj_name); + codegen_preload_ops(); codegen_preload_load(obj, obj_name); }