Bug Summary

File:jdk/src/java.desktop/unix/native/libawt_xawt/xawt/gnome_interface.c
Warning:line 84, column 11
Although the value stored to 'errmsg' is used in the enclosing expression, the value is never actually read from 'errmsg'

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name gnome_interface.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mthread-model posix -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -fno-rounding-math -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib/llvm-10/lib/clang/10.0.0 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base/linux -I /home/daniel/Projects/java/jdk/src/java.base/share/native/libjava -I /home/daniel/Projects/java/jdk/src/java.base/unix/native/libjava -I /home/daniel/Projects/java/jdk/src/hotspot/share/include -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix/include -D LIBC=gnu -D _GNU_SOURCE -D _REENTRANT -D _LARGEFILE64_SOURCE -D LINUX -D DEBUG -D _LITTLE_ENDIAN -D ARCH="amd64" -D amd64 -D _LP64=1 -D XAWT -D XAWT_HACK -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/libawt_xawt -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/awt -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/awt -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/java2d -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/java2d -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/font -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/font -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/headers/java.desktop -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/libawt/awt/image -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/libawt/awt/image/cvutils -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/libawt/java2d -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/libawt/java2d -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/libawt/java2d/loops -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/libawt/java2d/pipe -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/libawt_xawt/awt -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/include -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/include -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/awt/debug -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/awt/systemscale -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/font -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/font -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/java2d/opengl -I /home/daniel/Projects/java/jdk/src/java.desktop/share/native/common/java2d/opengl -I /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/common/java2d/x11 -D _FORTIFY_SOURCE=2 -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-10/lib/clang/10.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wno-unused -Wno-type-limits -Wno-pointer-to-int-cast -Wno-unused-result -Wno-maybe-uninitialized -Wno-format -Wno-format-security -Wno-int-to-pointer-cast -Wno-parentheses -Wno-implicit-fallthrough -Wno-undef -Wno-unused-function -std=c99 -fdebug-compilation-dir /home/daniel/Projects/java/jdk/make -ferror-limit 19 -fmessage-length 0 -fvisibility hidden -stack-protector 1 -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -faddrsig -o /home/daniel/Projects/java/scan/2021-12-21-193737-8510-1 -x c /home/daniel/Projects/java/jdk/src/java.desktop/unix/native/libawt_xawt/xawt/gnome_interface.c
1/*
2 * Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#ifdef HEADLESS
27 #error This file should not be included in headless library
28#endif
29
30#include "gnome_interface.h"
31
32GNOME_URL_SHOW_TYPE *gnome_url_show = NULL((void*)0);
33
34gboolean gnome_load() {
35 void *vfs_handle;
36 void *gnome_handle;
37 const char *errmsg;
38 GNOME_VFS_INIT_TYPE *gnome_vfs_init;
39
40 // trying to open the gnomevfs. VERSIONED_JNI_LIB_NAME
41 // macros formats the library name in a system specific manner
42 // see jdk/src/solaris/javavm/export/jvm_md.h for more details
43 vfs_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnomevfs-2", "0")"lib" "gnomevfs-2" ".so" "." "0", RTLD_LAZY0x00001);
44 if (vfs_handle == NULL((void*)0)) {
45 // if we cannot load the library using a version assumed by JNI
46 // we are trying to load the library without a version suffix
47 vfs_handle = dlopen(JNI_LIB_NAME("gnomevfs-2")"lib" "gnomevfs-2" ".so", RTLD_LAZY0x00001);
48 if (vfs_handle == NULL((void*)0)) {
49 #ifdef DEBUG1
50 fprintf(stderr, "can not load libgnomevfs-2.so\n")__fprintf_chk (stderr, 2 - 1, "can not load libgnomevfs-2.so\n"
)
;
51 #endif
52 return FALSE(0);
53 }
54 }
55 dlerror(); /* Clear errors */
56 gnome_vfs_init = (GNOME_VFS_INIT_TYPE*)dlsym(vfs_handle, "gnome_vfs_init");
57 if (gnome_vfs_init == NULL((void*)0)){
58 #ifdef DEBUG1
59 fprintf(stderr, "dlsym( gnome_vfs_init) returned NULL\n")__fprintf_chk (stderr, 2 - 1, "dlsym( gnome_vfs_init) returned NULL\n"
)
;
60 #endif
61 return FALSE(0);
62 }
63 if ((errmsg = dlerror()) != NULL((void*)0)) {
64 #ifdef DEBUG1
65 fprintf(stderr, "can not find symbol gnome_vfs_init %s \n", errmsg)__fprintf_chk (stderr, 2 - 1, "can not find symbol gnome_vfs_init %s \n"
, errmsg)
;
66 #endif
67 return FALSE(0);
68 }
69 // call gonme_vfs_init()
70 (*gnome_vfs_init)();
71
72 gnome_handle = dlopen(VERSIONED_JNI_LIB_NAME("gnome-2", "0")"lib" "gnome-2" ".so" "." "0", RTLD_LAZY0x00001);
73 if (gnome_handle == NULL((void*)0)) {
74 gnome_handle = dlopen(JNI_LIB_NAME("gnome-2")"lib" "gnome-2" ".so", RTLD_LAZY0x00001);
75 if (gnome_handle == NULL((void*)0)) {
76 #ifdef DEBUG1
77 fprintf(stderr, "can not load libgnome-2.so\n")__fprintf_chk (stderr, 2 - 1, "can not load libgnome-2.so\n");
78 #endif
79 return FALSE(0);
80 }
81 }
82 dlerror(); /* Clear errors */
83 gnome_url_show = (GNOME_URL_SHOW_TYPE*)dlsym(gnome_handle, "gnome_url_show");
84 if ((errmsg = dlerror()) != NULL((void*)0)) {
Although the value stored to 'errmsg' is used in the enclosing expression, the value is never actually read from 'errmsg'
85 #ifdef DEBUG1
86 fprintf(stderr, "can not find symble gnome_url_show\n")__fprintf_chk (stderr, 2 - 1, "can not find symble gnome_url_show\n"
)
;
87 #endif
88 return FALSE(0);
89 }
90 return TRUE(!(0));
91}