Add a test for enum64 value relocations.
Signed-off-by: Yonghong Song <yhs@xxxxxx>
---
.../selftests/bpf/prog_tests/core_reloc.c | 43 +++++++++++++++
.../bpf/progs/btf__core_reloc_enum64val.c | 3 ++
.../progs/btf__core_reloc_enum64val___diff.c | 3 ++
.../btf__core_reloc_enum64val___err_missing.c | 3 ++
...btf__core_reloc_enum64val___val3_missing.c | 3 ++
.../selftests/bpf/progs/core_reloc_types.h | 47 ++++++++++++++++
.../bpf/progs/test_core_reloc_enum64val.c | 53 +++++++++++++++++++
7 files changed, 155 insertions(+)
create mode 100644 tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
create mode 100644 tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
create mode 100644 tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
create mode 100644 tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
create mode 100644 tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index f28f75aa9154..b0054f16c9cd 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -355,6 +355,25 @@ static int duration = 0;
.fails = true, \
}
+#define ENUM64VAL_CASE_COMMON(name) \
+ .case_name = #name, \
+ .bpf_obj_file = "test_core_reloc_enum64val.o", \
+ .btf_src_file = "btf__core_reloc_" #name ".o", \
+ .raw_tp_name = "sys_enter", \
+ .prog_name = "test_core_enum64val"
+
+#define ENUM64VAL_CASE(name, ...) { \
+ ENUM64VAL_CASE_COMMON(name), \
+ .output = STRUCT_TO_CHAR_PTR(core_reloc_enum64val_output) \
+ __VA_ARGS__, \
+ .output_len = sizeof(struct core_reloc_enum64val_output), \
+}
+
+#define ENUM64VAL_ERR_CASE(name) { \
+ ENUM64VAL_CASE_COMMON(name), \
+ .fails = true, \
+}
+
struct core_reloc_test_case;
typedef int (*setup_test_fn)(struct core_reloc_test_case *test);
@@ -822,6 +841,30 @@ static const struct core_reloc_test_case test_cases[] = {
.anon_val2 = 0x222,
}),
ENUMVAL_ERR_CASE(enumval___err_missing),
+
+ /* 64bit enumerator value existence and value relocations */
+ ENUM64VAL_CASE(enum64val, {
+ .named_val1_exists = true,
+ .named_val2_exists = true,
+ .named_val3_exists = true,
+ .named_val1 = 0x1ffffffffULL,
+ .named_val2 = 0x2,
+ }),
+ ENUM64VAL_CASE(enum64val___diff, {
+ .named_val1_exists = true,
+ .named_val2_exists = true,
+ .named_val3_exists = true,
+ .named_val1 = 0x101ffffffffULL,
+ .named_val2 = 0x202ffffffffULL,
+ }),
+ ENUM64VAL_CASE(enum64val___val3_missing, {
+ .named_val1_exists = true,
+ .named_val2_exists = true,
+ .named_val3_exists = false,
+ .named_val1 = 0x111ffffffffULL,
+ .named_val2 = 0x222,
+ }),
+ ENUM64VAL_ERR_CASE(enum64val___err_missing),
};
struct data {
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
new file mode 100644
index 000000000000..888e79db6a77
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
new file mode 100644
index 000000000000..194749130d87
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
new file mode 100644
index 000000000000..3d732d4193e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___err_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
new file mode 100644
index 000000000000..17cf5d6a848d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___val3_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/core_reloc_types.h b/tools/testing/selftests/bpf/progs/core_reloc_types.h
index c95c0cabe951..e6e12a93514b 100644
--- a/tools/testing/selftests/bpf/progs/core_reloc_types.h
+++ b/tools/testing/selftests/bpf/progs/core_reloc_types.h
@@ -1099,6 +1099,15 @@ struct core_reloc_enumval_output {
int anon_val2;
};
+struct core_reloc_enum64val_output {
+ bool named_val1_exists;
+ bool named_val2_exists;
+ bool named_val3_exists;
+
+ long named_val1;
+ long named_val2;
+};
+
enum named_enum {
NAMED_ENUM_VAL1 = 1,
NAMED_ENUM_VAL2 = 2,
@@ -1116,6 +1125,16 @@ struct core_reloc_enumval {
anon_enum f2;
};
+enum named_enum64 {
+ NAMED_ENUM64_VAL1 = 0x1ffffffffULL,
+ NAMED_ENUM64_VAL2 = 0x2,
+ NAMED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+struct core_reloc_enum64val {
+ enum named_enum64 f1;
+};
+
/* differing enumerator values */
enum named_enum___diff {
NAMED_ENUM_VAL1___diff = 101,
@@ -1134,6 +1153,16 @@ struct core_reloc_enumval___diff {
anon_enum___diff f2;
};
+enum named_enum64___diff {
+ NAMED_ENUM64_VAL1___diff = 0x101ffffffffULL,
+ NAMED_ENUM64_VAL2___diff = 0x202ffffffffULL,
+ NAMED_ENUM64_VAL3___diff = 0x303ffffffffULL,
+};
+
+struct core_reloc_enum64val___diff {
+ enum named_enum64___diff f1;
+};
+
/* missing (optional) third enum value */
enum named_enum___val3_missing {
NAMED_ENUM_VAL1___val3_missing = 111,
@@ -1150,6 +1179,15 @@ struct core_reloc_enumval___val3_missing {
anon_enum___val3_missing f2;
};
+enum named_enum64___val3_missing {
+ NAMED_ENUM64_VAL1___val3_missing = 0x111ffffffffULL,
+ NAMED_ENUM64_VAL2___val3_missing = 0x222,
+};
+
+struct core_reloc_enum64val___val3_missing {
+ enum named_enum64___val3_missing f1;
+};
+
/* missing (mandatory) second enum value, should fail */
enum named_enum___err_missing {
NAMED_ENUM_VAL1___err_missing = 1,
@@ -1165,3 +1203,12 @@ struct core_reloc_enumval___err_missing {
enum named_enum___err_missing f1;
anon_enum___err_missing f2;
};
+
+enum named_enum64___err_missing {
+ NAMED_ENUM64_VAL1___err_missing = 0x1ffffffffULL,
+ NAMED_ENUM64_VAL3___err_missing = 0x3ffffffffULL,
+};
+
+struct core_reloc_enum64val___err_missing {
+ enum named_enum64___err_missing f1;
+};
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
new file mode 100644
index 000000000000..1bccf9214547
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+ char in[256];
+ char out[256];
+ bool skip;
+} data = {};
+
+enum named_enum64 {
+ NAMED_ENUM64_VAL1 = 0x1ffffffffULL,
+ NAMED_ENUM64_VAL2 = 0x2ffffffffULL,
+ NAMED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+struct core_reloc_enum64val_output {
+ bool named_val1_exists;
+ bool named_val2_exists;
+ bool named_val3_exists;
+
+ long named_val1;
+ long named_val2;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_enum64val(void *ctx)
+{
+#if __has_builtin(__builtin_preserve_enum_value)
+ struct core_reloc_enum64val_output *out = (void *)&data.out;
+ enum named_enum64 named = 0;
+
+ out->named_val1_exists = bpf_core_enum_value_exists(named, NAMED_ENUM64_VAL1);
+ out->named_val2_exists = bpf_core_enum_value_exists(enum named_enum64, NAMED_ENUM64_VAL2);
+ out->named_val3_exists = bpf_core_enum_value_exists(enum named_enum64, NAMED_ENUM64_VAL3);
+
+ out->named_val1 = bpf_core_enum_value(named, NAMED_ENUM64_VAL1);
+ out->named_val2 = bpf_core_enum_value(named, NAMED_ENUM64_VAL2);
+ /* NAMED_ENUM64_VAL3 value is optional */
+
+#else
+ data.skip = true;
+#endif
+
+ return 0;
+}
--
2.30.2
