From 537905c4b68fe3a32c4925122fe792eb2f594b73 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Daniel=20M=C3=BCller?= Date: Tue, 28 Jun 2022 16:01:26 +0000 Subject: [PATCH] selftests/bpf: Add nested type to type based tests MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This change extends the type based tests with another struct type (in addition to a_struct) to check relocations against: a_complex_struct. This type is nested more deeply to provide additional coverage of certain paths in the type match logic. Signed-off-by: Daniel Müller Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220628160127.607834-10-deso@posteo.net --- .../testing/selftests/bpf/prog_tests/core_reloc.c | 4 ++ .../testing/selftests/bpf/progs/core_reloc_types.h | 62 +++++++++++++++------- .../bpf/progs/test_core_reloc_type_based.c | 12 +++++ 3 files changed, 58 insertions(+), 20 deletions(-) diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c index eb47bfd..8882c9c 100644 --- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c +++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c @@ -754,6 +754,7 @@ static const struct core_reloc_test_case test_cases[] = { /* validate type existence, match, and size relocations */ TYPE_BASED_CASE(type_based, { .struct_exists = 1, + .complex_struct_exists = 1, .union_exists = 1, .enum_exists = 1, .typedef_named_struct_exists = 1, @@ -766,6 +767,7 @@ static const struct core_reloc_test_case test_cases[] = { .typedef_arr_exists = 1, .struct_matches = 1, + .complex_struct_matches = 1, .union_matches = 1, .enum_matches = 1, .typedef_named_struct_matches = 1, @@ -794,6 +796,7 @@ static const struct core_reloc_test_case test_cases[] = { }), TYPE_BASED_CASE(type_based___diff, { .struct_exists = 1, + .complex_struct_exists = 1, .union_exists = 1, .enum_exists = 1, .typedef_named_struct_exists = 1, @@ -806,6 +809,7 @@ static const struct core_reloc_test_case test_cases[] = { .typedef_arr_exists = 1, .struct_matches = 1, + .complex_struct_matches = 1, .union_matches = 1, .enum_matches = 1, .typedef_named_struct_matches = 1, diff --git a/tools/testing/selftests/bpf/progs/core_reloc_types.h b/tools/testing/selftests/bpf/progs/core_reloc_types.h index e326b6a..474411c 100644 --- a/tools/testing/selftests/bpf/progs/core_reloc_types.h +++ b/tools/testing/selftests/bpf/progs/core_reloc_types.h @@ -864,6 +864,7 @@ struct core_reloc_size___err_ambiguous2 { */ struct core_reloc_type_based_output { bool struct_exists; + bool complex_struct_exists; bool union_exists; bool enum_exists; bool typedef_named_struct_exists; @@ -876,6 +877,7 @@ struct core_reloc_type_based_output { bool typedef_arr_exists; bool struct_matches; + bool complex_struct_matches; bool union_matches; bool enum_matches; bool typedef_named_struct_matches; @@ -904,6 +906,14 @@ struct a_struct { int x; }; +struct a_complex_struct { + union { + struct a_struct * restrict a; + void *b; + } x; + volatile long y; +}; + union a_union { int y; int z; @@ -935,16 +945,17 @@ typedef char arr_typedef[20]; struct core_reloc_type_based { struct a_struct f1; - union a_union f2; - enum an_enum f3; - named_struct_typedef f4; - anon_struct_typedef f5; - struct_ptr_typedef f6; - int_typedef f7; - enum_typedef f8; - void_ptr_typedef f9; - func_proto_typedef f10; - arr_typedef f11; + struct a_complex_struct f2; + union a_union f3; + enum an_enum f4; + named_struct_typedef f5; + anon_struct_typedef f6; + struct_ptr_typedef f7; + int_typedef f8; + enum_typedef f9; + void_ptr_typedef f10; + func_proto_typedef f11; + arr_typedef f12; }; /* no types in target */ @@ -957,6 +968,16 @@ struct a_struct___diff { int a; }; +struct a_struct___forward; + +struct a_complex_struct___diff { + union { + struct a_struct___forward *a; + void *b; + } x; + volatile long y; +}; + union a_union___diff { int z; int y; @@ -990,16 +1011,17 @@ typedef char arr_typedef___diff[3]; struct core_reloc_type_based___diff { struct a_struct___diff f1; - union a_union___diff f2; - enum an_enum___diff f3; - named_struct_typedef___diff f4; - anon_struct_typedef___diff f5; - struct_ptr_typedef___diff f6; - int_typedef___diff f7; - enum_typedef___diff f8; - void_ptr_typedef___diff f9; - func_proto_typedef___diff f10; - arr_typedef___diff f11; + struct a_complex_struct___diff f2; + union a_union___diff f3; + enum an_enum___diff f4; + named_struct_typedef___diff f5; + anon_struct_typedef___diff f6; + struct_ptr_typedef___diff f7; + int_typedef___diff f8; + enum_typedef___diff f9; + void_ptr_typedef___diff f10; + func_proto_typedef___diff f11; + arr_typedef___diff f12; }; /* different type sizes, extra modifiers, anon vs named enums, etc */ diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c index 325ead6..d95bc08 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c @@ -19,6 +19,14 @@ struct a_struct { int x; }; +struct a_complex_struct { + union { + struct a_struct *a; + void *b; + } x; + volatile long y; +}; + union a_union { int y; int z; @@ -50,6 +58,7 @@ typedef char arr_typedef[20]; struct core_reloc_type_based_output { bool struct_exists; + bool complex_struct_exists; bool union_exists; bool enum_exists; bool typedef_named_struct_exists; @@ -62,6 +71,7 @@ struct core_reloc_type_based_output { bool typedef_arr_exists; bool struct_matches; + bool complex_struct_matches; bool union_matches; bool enum_matches; bool typedef_named_struct_matches; @@ -99,6 +109,7 @@ int test_core_type_based(void *ctx) struct core_reloc_type_based_output *out = (void *)&data.out; out->struct_exists = bpf_core_type_exists(struct a_struct); + out->complex_struct_exists = bpf_core_type_exists(struct a_complex_struct); out->union_exists = bpf_core_type_exists(union a_union); out->enum_exists = bpf_core_type_exists(enum an_enum); out->typedef_named_struct_exists = bpf_core_type_exists(named_struct_typedef); @@ -111,6 +122,7 @@ int test_core_type_based(void *ctx) out->typedef_arr_exists = bpf_core_type_exists(arr_typedef); out->struct_matches = bpf_core_type_matches(struct a_struct); + out->complex_struct_matches = bpf_core_type_matches(struct a_complex_struct); out->union_matches = bpf_core_type_matches(union a_union); out->enum_matches = bpf_core_type_matches(enum an_enum); out->typedef_named_struct_matches = bpf_core_type_matches(named_struct_typedef); -- 2.7.4