[PATCH v7 bpf-next 09/10] selftests/bpf: Add BTF_KIND_FLOAT to test_core_reloc_size

[Ilya Leoshkevich <iii@xxxxxxxxxxxxx>]

Verify that bpf_core_field_size() is working correctly with floats.

Suggested-by: John Fastabend <john.fastabend@xxxxxxxxx>
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
---
 tools/testing/selftests/bpf/prog_tests/core_reloc.c      | 1 +
 tools/testing/selftests/bpf/progs/core_reloc_types.h     | 5 +++++
 tools/testing/selftests/bpf/progs/test_core_reloc_size.c | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index 06eb956ff7bb..d94dcead72e6 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -266,6 +266,7 @@ static int duration = 0;
 		.arr_elem_sz = sizeof(((type *)0)->arr_field[0]),	\
 		.ptr_sz = 8, /* always 8-byte pointer for BPF */	\
 		.enum_sz = sizeof(((type *)0)->enum_field),		\
+		.float_sz = sizeof(((type *)0)->float_field),		\
 	}
 
 #define SIZE_CASE(name) {						\
diff --git a/tools/testing/selftests/bpf/progs/core_reloc_types.h b/tools/testing/selftests/bpf/progs/core_reloc_types.h
index 9a2850850121..3a2149c5863c 100644
--- a/tools/testing/selftests/bpf/progs/core_reloc_types.h
+++ b/tools/testing/selftests/bpf/progs/core_reloc_types.h
@@ -807,6 +807,7 @@ struct core_reloc_size_output {
 	int arr_elem_sz;
 	int ptr_sz;
 	int enum_sz;
+	int float_sz;
 };
 
 struct core_reloc_size {
@@ -816,6 +817,7 @@ struct core_reloc_size {
 	int arr_field[4];
 	void *ptr_field;
 	enum { VALUE = 123 } enum_field;
+	float float_field;
 };
 
 struct core_reloc_size___diff_sz {
@@ -825,6 +827,7 @@ struct core_reloc_size___diff_sz {
 	char arr_field[10];
 	void *ptr_field;
 	enum { OTHER_VALUE = 0xFFFFFFFFFFFFFFFF } enum_field;
+	float float_field;
 };
 
 /* Error case of two candidates with the fields (int_field) at the same
@@ -839,6 +842,7 @@ struct core_reloc_size___err_ambiguous1 {
 	int arr_field[4];
 	void *ptr_field;
 	enum { VALUE___1 = 123 } enum_field;
+	float float_field;
 };
 
 struct core_reloc_size___err_ambiguous2 {
@@ -850,6 +854,7 @@ struct core_reloc_size___err_ambiguous2 {
 	int arr_field[4];
 	void *ptr_field;
 	enum { VALUE___2 = 123 } enum_field;
+	float float_field;
 };
 
 /*
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_size.c b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c
index d7fb6cfc7891..7b2d576aeea1 100644
--- a/tools/testing/selftests/bpf/progs/test_core_reloc_size.c
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c
@@ -21,6 +21,7 @@ struct core_reloc_size_output {
 	int arr_elem_sz;
 	int ptr_sz;
 	int enum_sz;
+	int float_sz;
 };
 
 struct core_reloc_size {
@@ -30,6 +31,7 @@ struct core_reloc_size {
 	int arr_field[4];
 	void *ptr_field;
 	enum { VALUE = 123 } enum_field;
+	float float_field;
 };
 
 SEC("raw_tracepoint/sys_enter")
@@ -45,6 +47,7 @@ int test_core_size(void *ctx)
 	out->arr_elem_sz = bpf_core_field_size(in->arr_field[0]);
 	out->ptr_sz = bpf_core_field_size(in->ptr_field);
 	out->enum_sz = bpf_core_field_size(in->enum_field);
+	out->float_sz = bpf_core_field_size(in->float_field);
 
 	return 0;
 }
-- 
2.29.2