From 525c821de0a6e45dc31cd5313555df628d80b2a4 Mon Sep 17 00:00:00 2001 From: Nick Gasson Date: Mon, 27 Apr 2020 14:15:16 +0800 Subject: [PATCH] perf tests: Add test for the java demangler Split from a larger patch that was also fixing a problem with the java demangler, so, before applying that patch we see: $ perf test java 65: Demangle Java : FAILED! $ perf test -v java 65: Demangle Java : --- start --- test child forked, pid 307264 FAILED: Ljava/lang/StringLatin1;equals([B[B)Z: bool class java.lang.StringLatin1.equals(byte[], byte[]) != boolean java.lang.StringLatin1.equals(byte[], byte[]) FAILED: Ljava/util/zip/ZipUtils;CENSIZ([BI)J: long class java.util.zip.ZipUtils.CENSIZ(byte[], int) != long java.util.zip.ZipUtils.CENSIZ(byte[], int) FAILED: Ljava/util/regex/Pattern$BmpCharProperty;match(Ljava/util/regex/Matcher;ILjava/lang/CharSequence;)Z: bool class java.util.regex.Pattern$BmpCharProperty.match(class java.util.regex.Matcher., int, class java.lang., charhar, shortequence) != boolean java.util.regex.Pattern$BmpCharProperty.match(java.util.regex.Matcher, int, java.lang.CharSequence) FAILED: Ljava/lang/AbstractStringBuilder;appendChars(Ljava/lang/String;II)V: void class java.lang.AbstractStringBuilder.appendChars(class java.lang., shorttring., int, int) != void java.lang.AbstractStringBuilder.appendChars(java.lang.String, int, int) FAILED: Ljava/lang/Object;()V: void class java.lang.Object() != void java.lang.Object() test child finished with -1 ---- end ---- Demangle Java: FAILED! $ Next patch should fix this. Signed-off-by: Nick Gasson Reviewed-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Tested-by: Ian Rogers Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200427061520.24905-4-nick.gasson@arm.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 4 +++ tools/perf/tests/demangle-java-test.c | 42 +++++++++++++++++++++++++++ tools/perf/tests/tests.h | 1 + 4 files changed, 48 insertions(+) create mode 100644 tools/perf/tests/demangle-java-test.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index c75557aeef0e..446fe14c24cf 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -57,6 +57,7 @@ perf-y += maps.o perf-y += time-utils-test.o perf-y += genelf.o perf-y += api-io.o +perf-y += demangle-java-test.o $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build $(call rule_mkdir) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index a9daaeb9fd27..f1dc2fe93dd8 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -324,6 +324,10 @@ static struct test generic_tests[] = { .desc = "maps__merge_in", .func = test__maps__merge_in, }, + { + .desc = "Demangle Java", + .func = test__demangle_java, + }, { .func = NULL, }, diff --git a/tools/perf/tests/demangle-java-test.c b/tools/perf/tests/demangle-java-test.c new file mode 100644 index 000000000000..8f3b90832fb0 --- /dev/null +++ b/tools/perf/tests/demangle-java-test.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include "tests.h" +#include "session.h" +#include "debug.h" +#include "demangle-java.h" + +int test__demangle_java(struct test *test __maybe_unused, int subtest __maybe_unused) +{ + int ret = TEST_OK; + char *buf = NULL; + size_t i; + + struct { + const char *mangled, *demangled; + } test_cases[] = { + { "Ljava/lang/StringLatin1;equals([B[B)Z", + "boolean java.lang.StringLatin1.equals(byte[], byte[])" }, + { "Ljava/util/zip/ZipUtils;CENSIZ([BI)J", + "long java.util.zip.ZipUtils.CENSIZ(byte[], int)" }, + { "Ljava/util/regex/Pattern$BmpCharProperty;match(Ljava/util/regex/Matcher;ILjava/lang/CharSequence;)Z", + "boolean java.util.regex.Pattern$BmpCharProperty.match(java.util.regex.Matcher, int, java.lang.CharSequence)" }, + { "Ljava/lang/AbstractStringBuilder;appendChars(Ljava/lang/String;II)V", + "void java.lang.AbstractStringBuilder.appendChars(java.lang.String, int, int)" }, + { "Ljava/lang/Object;()V", + "void java.lang.Object()" }, + }; + + for (i = 0; i < sizeof(test_cases) / sizeof(test_cases[0]); i++) { + buf = java_demangle_sym(test_cases[i].mangled, 0); + if (strcmp(buf, test_cases[i].demangled)) { + pr_debug("FAILED: %s: %s != %s\n", test_cases[i].mangled, + buf, test_cases[i].demangled); + ret = TEST_FAIL; + } + free(buf); + } + + return ret; +} diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 6c6c4b6a4796..12856bc6f411 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -117,6 +117,7 @@ int test__maps__merge_in(struct test *t, int subtest); int test__time_utils(struct test *t, int subtest); int test__jit_write_elf(struct test *test, int subtest); int test__api_io(struct test *test, int subtest); +int test__demangle_java(struct test *test, int subtest); bool test__bp_signal_is_supported(void); bool test__bp_account_is_supported(void);