2 #include <bpf/libbpf.h>
3 #include <util/llvm-utils.h>
4 #include <util/cache.h>
9 static int perf_config_cb(const char *var
, const char *val
,
10 void *arg __maybe_unused
)
12 return perf_default_config(var
, val
, arg
);
15 #ifdef HAVE_LIBBPF_SUPPORT
16 static int test__bpf_parsing(void *obj_buf
, size_t obj_buf_sz
)
18 struct bpf_object
*obj
;
20 obj
= bpf_object__open_buffer(obj_buf
, obj_buf_sz
, NULL
);
23 bpf_object__close(obj
);
27 static int test__bpf_parsing(void *obj_buf __maybe_unused
,
28 size_t obj_buf_sz __maybe_unused
)
30 pr_debug("Skip bpf parsing\n");
38 } bpf_source_table
[__LLVM_TESTCASE_MAX
] = {
39 [LLVM_TESTCASE_BASE
] = {
40 .source
= test_llvm__bpf_base_prog
,
41 .desc
= "Basic BPF llvm compiling test",
43 [LLVM_TESTCASE_KBUILD
] = {
44 .source
= test_llvm__bpf_test_kbuild_prog
,
45 .desc
= "Test kbuild searching",
47 [LLVM_TESTCASE_BPF_PROLOGUE
] = {
48 .source
= test_llvm__bpf_test_prologue_prog
,
49 .desc
= "Compile source for BPF prologue generation test",
55 test_llvm__fetch_bpf_obj(void **p_obj_buf
,
57 enum test_llvm__testcase idx
,
62 const char *tmpl_old
, *clang_opt_old
;
63 char *tmpl_new
= NULL
, *clang_opt_new
= NULL
;
64 int err
, old_verbose
, ret
= TEST_FAIL
;
66 if (idx
>= __LLVM_TESTCASE_MAX
)
69 source
= bpf_source_table
[idx
].source
;
70 desc
= bpf_source_table
[idx
].desc
;
72 perf_config(perf_config_cb
, NULL
);
75 * Skip this test if user's .perfconfig doesn't set [llvm] section
76 * and clang is not found in $PATH, and this is not perf test -v
78 if (!force
&& (verbose
== 0 &&
79 !llvm_param
.user_set_param
&&
80 llvm__search_clang())) {
81 pr_debug("No clang and no verbosive, skip this test\n");
86 * llvm is verbosity when error. Suppress all error output if
89 old_verbose
= verbose
;
96 if (!llvm_param
.clang_bpf_cmd_template
)
99 if (!llvm_param
.clang_opt
)
100 llvm_param
.clang_opt
= strdup("");
102 err
= asprintf(&tmpl_new
, "echo '%s' | %s%s", source
,
103 llvm_param
.clang_bpf_cmd_template
,
104 old_verbose
? "" : " 2>/dev/null");
107 err
= asprintf(&clang_opt_new
, "-xc %s", llvm_param
.clang_opt
);
111 tmpl_old
= llvm_param
.clang_bpf_cmd_template
;
112 llvm_param
.clang_bpf_cmd_template
= tmpl_new
;
113 clang_opt_old
= llvm_param
.clang_opt
;
114 llvm_param
.clang_opt
= clang_opt_new
;
116 err
= llvm__compile_bpf("-", p_obj_buf
, p_obj_buf_sz
);
118 llvm_param
.clang_bpf_cmd_template
= tmpl_old
;
119 llvm_param
.clang_opt
= clang_opt_old
;
121 verbose
= old_verbose
;
130 pr_debug("Failed to compile test case: '%s'\n", desc
);
134 int test__llvm(int subtest
)
137 void *obj_buf
= NULL
;
138 size_t obj_buf_sz
= 0;
140 if ((subtest
< 0) || (subtest
>= __LLVM_TESTCASE_MAX
))
143 ret
= test_llvm__fetch_bpf_obj(&obj_buf
, &obj_buf_sz
,
146 if (ret
== TEST_OK
) {
147 ret
= test__bpf_parsing(obj_buf
, obj_buf_sz
);
148 if (ret
!= TEST_OK
) {
149 pr_debug("Failed to parse test case '%s'\n",
150 bpf_source_table
[subtest
].desc
);
158 int test__llvm_subtest_get_nr(void)
160 return __LLVM_TESTCASE_MAX
;
163 const char *test__llvm_subtest_get_desc(int subtest
)
165 if ((subtest
< 0) || (subtest
>= __LLVM_TESTCASE_MAX
))
168 return bpf_source_table
[subtest
].desc
;