Commit 218e7b77 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions 



The btf__get_from_id() function was deprecated in favour of
btf__load_from_kernel_by_id(), but it is still avaiable, so use it to
provide a weak function btf__load_from_kernel_by_id() for older libbpf
when building perf with LIBBPF_DYNAMIC=1, i.e. using the system's libbpf
package.

Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 37ce9e4f

tools/perf/util/bpf-event.c

+8 −0
Original line number Diff line number Diff line
@@ -21,6 +21,14 @@ 
#include "record.h"

#include "util/synthetic-events.h"



struct btf * __weak btf__load_from_kernel_by_id(__u32 id)

{

       struct btf *btf;

       int err = btf__get_from_id(id, &btf);



       return err ? ERR_PTR(err) : btf;

}



#define ptr_to_u64(ptr)    ((__u64)(unsigned long)(ptr))



static int snprintf_hex(char *buf, size_t size, unsigned char *data, size_t len)