Bug Summary

File:objdir/build-x86_64-pc-linux-gnu/libiberty/conftest.c
Warning:line 49, column 5
Value stored to 'x' during its initialization is never read

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name conftest.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 -analyzer-config-compatibility-mode=true -mrelocation-model static -mframe-pointer=none -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/objdir/build-x86_64-pc-linux-gnu/libiberty -resource-dir /usr/lib64/clang/13.0.0 -internal-isystem /usr/lib64/clang/13.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/objdir/build-x86_64-pc-linux-gnu/libiberty -ferror-limit 19 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -analyzer-output=plist-html -analyzer-config silence-checkers=core.NullDereference -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-clang-static-analyzer/objdir/clang-static-analyzer/2021-11-20-133755-20252-1/report-7sFyDY.plist -x c conftest.c
1/* confdefs.h */
2#define PACKAGE_NAME"" ""
3#define PACKAGE_TARNAME"" ""
4#define PACKAGE_VERSION"" ""
5#define PACKAGE_STRING"" ""
6#define PACKAGE_BUGREPORT"" ""
7#define PACKAGE_URL"" ""
8#define STDC_HEADERS1 1
9#define HAVE_SYS_TYPES_H1 1
10#define HAVE_SYS_STAT_H1 1
11#define HAVE_STDLIB_H1 1
12#define HAVE_STRING_H1 1
13#define HAVE_MEMORY_H1 1
14#define HAVE_STRINGS_H1 1
15#define HAVE_INTTYPES_H1 1
16#define HAVE_STDINT_H1 1
17#define HAVE_UNISTD_H1 1
18#define __EXTENSIONS__1 1
19#define _ALL_SOURCE1 1
20#define _GNU_SOURCE1 1
21#define _POSIX_PTHREAD_SEMANTICS1 1
22#define _TANDEM_SOURCE1 1
23#define HAVE_SYS_FILE_H1 1
24#define HAVE_SYS_PARAM_H1 1
25#define HAVE_LIMITS_H1 1
26#define HAVE_STDLIB_H1 1
27#define HAVE_MALLOC_H1 1
28#define HAVE_STRING_H1 1
29#define HAVE_UNISTD_H1 1
30#define HAVE_STRINGS_H1 1
31#define HAVE_SYS_TIME_H1 1
32#define HAVE_TIME_H1 1
33#define HAVE_SYS_RESOURCE_H1 1
34#define HAVE_SYS_STAT_H1 1
35#define HAVE_SYS_MMAN_H1 1
36#define HAVE_FCNTL_H1 1
37#define HAVE_ALLOCA_H1 1
38#define HAVE_SYS_SYSINFO_H1 1
39#define HAVE_STDINT_H1 1
40#define HAVE_STDIO_EXT_H1 1
41#define HAVE_SYS_PRCTL_H1 1
42#define HAVE_SYS_WAIT_H1 1
43#define TIME_WITH_SYS_TIME1 1
44/* end confdefs.h. */
45#include <errno(*__errno_location ()).h>
46int
47main ()
48{
49int x = errno(*__errno_location ());
Value stored to 'x' during its initialization is never read
50 ;
51 return 0;
52}