mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-29 05:12:59 +01:00
Ian Rogers
07f2b1287c
The buffer returned by dso__demangle_sym() may be NULL, don't segv in strcmp if this happens. Currently this happens for NO_LIBELF=1 builds. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alex Gaynor <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alice Ryhl <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Andreas Hindborg <[email protected]> Cc: Benno Lossin <[email protected]> Cc: Björn Roy Baron <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Danilo Krummrich <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Gary Guo <[email protected]> Cc: Howard Chu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiapeng Chong <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephen Brennan <[email protected]> Cc: Trevor Gross <[email protected]> Cc: Weilin Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <linux/kernel.h>
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#include "debug.h"
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#include "symbol.h"
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#include "tests.h"
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static int test__demangle_java(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
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{
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int ret = TEST_OK;
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char *buf = NULL;
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size_t i;
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struct {
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const char *mangled, *demangled;
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} test_cases[] = {
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{ "Ljava/lang/StringLatin1;equals([B[B)Z",
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"java.lang.StringLatin1.equals(byte[], byte[])" },
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{ "Ljava/util/zip/ZipUtils;CENSIZ([BI)J",
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"java.util.zip.ZipUtils.CENSIZ(byte[], int)" },
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{ "Ljava/util/regex/Pattern$BmpCharProperty;match(Ljava/util/regex/Matcher;ILjava/lang/CharSequence;)Z",
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"java.util.regex.Pattern$BmpCharProperty.match(java.util.regex.Matcher, int, java.lang.CharSequence)" },
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{ "Ljava/lang/AbstractStringBuilder;appendChars(Ljava/lang/String;II)V",
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"java.lang.AbstractStringBuilder.appendChars(java.lang.String, int, int)" },
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{ "Ljava/lang/Object;<init>()V",
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"java.lang.Object<init>()" },
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};
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for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
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buf = dso__demangle_sym(/*dso=*/NULL, /*kmodule=*/0, test_cases[i].mangled);
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if (!buf) {
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pr_debug("FAILED to demangle: \"%s\"\n \"%s\"\n", test_cases[i].mangled,
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test_cases[i].demangled);
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continue;
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}
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if (strcmp(buf, test_cases[i].demangled)) {
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pr_debug("FAILED: %s: %s != %s\n", test_cases[i].mangled,
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buf, test_cases[i].demangled);
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ret = TEST_FAIL;
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}
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free(buf);
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}
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return ret;
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}
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DEFINE_SUITE("Demangle Java", demangle_java);
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