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authorAndrii Nakryiko <andriin@fb.com>2020-09-25 18:13:50 -0700
committerAlexei Starovoitov <ast@kernel.org>2020-09-28 17:27:31 -0700
commitb86042478fa083d87f1b67047e788d70b8c81eef (patch)
tree82167c015e3fea50f2c09210bbfa5cfa7f47017e /tools/lib/bpf/bpf.c
parentlibbpf: Refactor internals of BTF type index (diff)
downloadlinux-dev-b86042478fa083d87f1b67047e788d70b8c81eef.tar.xz
linux-dev-b86042478fa083d87f1b67047e788d70b8c81eef.zip
libbpf: Remove assumption of single contiguous memory for BTF data
Refactor internals of struct btf to remove assumptions that BTF header, type data, and string data are layed out contiguously in a memory in a single memory allocation. Now we have three separate pointers pointing to the start of each respective are: header, types, strings. In the next patches, these pointers will be re-assigned to point to independently allocated memory areas, if BTF needs to be modified. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200926011357.2366158-3-andriin@fb.com
Diffstat (limited to 'tools/lib/bpf/bpf.c')
-rw-r--r--tools/lib/bpf/bpf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index c5a4d8444bf6..70575a37aa14 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -846,7 +846,7 @@ int bpf_raw_tracepoint_open(const char *name, int prog_fd)
return sys_bpf(BPF_RAW_TRACEPOINT_OPEN, &attr, sizeof(attr));
}
-int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
+int bpf_load_btf(const void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
bool do_log)
{
union bpf_attr attr = {};