#include #include #include #include #include "llvm.h" #include "tests.h" #include "debug.h" #include "util.h" #ifdef HAVE_LIBBPF_SUPPORT static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz) { struct bpf_object *obj; obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, NULL); if (IS_ERR(obj)) return TEST_FAIL; bpf_object__close(obj); return TEST_OK; } #else static int test__bpf_parsing(void *obj_buf __maybe_unused, size_t obj_buf_sz __maybe_unused) { pr_debug("Skip bpf parsing\n"); return TEST_OK; } #endif static struct { const char *source; const char *desc; bool should_load_fail; } bpf_source_table[__LLVM_TESTCASE_MAX] = { [LLVM_TESTCASE_BASE] = { .source = test_llvm__bpf_base_prog, .desc = "Basic BPF llvm compile", }, [LLVM_TESTCASE_KBUILD] = { .source = test_llvm__bpf_test_kbuild_prog, .desc = "kbuild searching", }, [LLVM_TESTCASE_BPF_PROLOGUE] = { .source = test_llvm__bpf_test_prologue_prog, .desc = "Compile source for BPF prologue generation", }, [LLVM_TESTCASE_BPF_RELOCATION] = { .source = test_llvm__bpf_test_relocation, .desc = "Compile source for BPF relocation", .should_load_fail = true, }, }; int test_llvm__fetch_bpf_obj(void **p_obj_buf, size_t *p_obj_buf_sz, enum test_llvm__testcase idx, bool force, bool *should_load_fail) { const char *source; const char *desc; const char *tmpl_old, *clang_opt_old; char *tmpl_new = NULL, *clang_opt_new = NULL; int err, old_verbose, ret = TEST_FAIL; if (idx >= __LLVM_TESTCASE_MAX) return TEST_FAIL; source = bpf_source_table[idx].source; desc = bpf_source_table[idx].desc; if (should_load_fail) *should_load_fail = bpf_source_table[idx].should_load_fail; /* * Skip this test if user's .perfconfig doesn't set [llvm] section * and clang is not found in $PATH, and this is not perf test -v */ if (!force && (verbose == 0 && !llvm_param.user_set_param && llvm__search_clang())) { pr_debug("No clang and no verbosive, skip this test\n"); return TEST_SKIP; } /* * llvm is verbosity when error. Suppress all error output if * not 'perf test -v'. */ old_verbose = verbose; if (verbose == 0) verbose = -1; *p_obj_buf = NULL; *p_obj_buf_sz = 0; if (!llvm_param.clang_bpf_cmd_template) goto out; if (!llvm_param.clang_opt) llvm_param.clang_opt = strdup(""); err = asprintf(&tmpl_new, "echo '%s' | %s%s", source, llvm_param.clang_bpf_cmd_template, old_verbose ? "" : " 2>/dev/null"); if (err < 0) goto out; err = asprintf(&clang_opt_new, "-xc %s", llvm_param.clang_opt); if (err < 0) goto out; tmpl_old = llvm_param.clang_bpf_cmd_template; llvm_param.clang_bpf_cmd_template = tmpl_new; clang_opt_old = llvm_param.clang_opt; llvm_param.clang_opt = clang_opt_new; err = llvm__compile_bpf("-", p_obj_buf, p_obj_buf_sz); llvm_param.clang_bpf_cmd_template = tmpl_old; llvm_param.clang_opt = clang_opt_old; verbose = old_verbose; if (err) goto out; ret = TEST_OK; out: free(tmpl_new); free(clang_opt_new); if (ret != TEST_OK) pr_debug("Failed to compile test case: '%s'\n", desc); return ret; } int test__llvm(int subtest) { int ret; void *obj_buf = NULL; size_t obj_buf_sz = 0; bool should_load_fail = false; if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX)) return TEST_FAIL; ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz, subtest, false, &should_load_fail); if (ret == TEST_OK && !should_load_fail) { ret = test__bpf_parsing(obj_buf, obj_buf_sz); if (ret != TEST_OK) { pr_debug("Failed to parse test case '%s'\n", bpf_source_table[subtest].desc); } } free(obj_buf); return ret; } int test__llvm_subtest_get_nr(void) { return __LLVM_TESTCASE_MAX; } const char *test__llvm_subtest_get_desc(int subtest) { if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX)) return NULL; return bpf_source_table[subtest].desc; } on value='1'>1space:mode:

Diffstat (limited to 'net/dccp')

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1 files changed, 2 insertions, 2 deletions