Thread (16 messages) 16 messages, 4 authors, 2021-04-26

Re: [PATCH bpf-next 2/5] libbpf: support BTF_KIND_FLOAT during type compatibility checks in CO-RE

From: Lorenz Bauer <hidden>
Date: 2021-04-26 08:10:06
Also in: bpf

On Sat, 24 Apr 2021 at 00:36, Andrii Nakryiko [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Add BTF_KIND_FLOAT support when doing CO-RE field type compatibility check.
Without this, relocations against float/double fields will fail.

Also adjust one error message to emit instruction index instead of less
convenient instruction byte offset.

Fixes: 22541a9eeb0d ("libbpf: Add BTF_KIND_FLOAT support")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
 tools/lib/bpf/libbpf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index a1cddd17af7d..ff54ffef433a 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5141,6 +5141,7 @@ static int bpf_core_fields_are_compat(const struct btf *local_btf,

        switch (btf_kind(local_type)) {
        case BTF_KIND_PTR:
+       case BTF_KIND_FLOAT:
Nit: update the function comment as well?

Acked-by: Lorenz Bauer <redacted>

-- 
Lorenz Bauer  |  Systems Engineer
6th Floor, County Hall/The Riverside Building, SE1 7PB, UK

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