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Fix unterminated-string-initialization error on GCC 16.1#5288

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diamant3:fix-unterminated-string-initialization
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Fix unterminated-string-initialization error on GCC 16.1#5288
diamant3 wants to merge 1 commit into
jerryscript-project:masterfrom
diamant3:fix-unterminated-string-initialization

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@diamant3 diamant3 commented May 14, 2026

JerryScript-DCO-1.0-Signed-off-by: Diamond Rivero diamant3@proton.me

build issue:

diamant3@fedora:~/Desktop/jerryscript$ python tools/build.py
-- CMAKE_BUILD_TYPE               MinSizeRel
-- CMAKE_C_COMPILER_ID            GNU
-- CMAKE_SYSTEM_NAME              Linux
-- CMAKE_SYSTEM_PROCESSOR         x86_64
-- BUILD_SHARED_LIBS              OFF
-- ENABLE_AMALGAM                 OFF
-- ENABLE_LTO                     ON
-- ENABLE_STRIP                   ON
-- ENABLE_STATIC_CRT              
-- ENABLE_COMPILE_COMMANDS        ON
-- JERRY_VERSION                  3.0.0
-- JERRY_CMDLINE                  ON
-- JERRY_CMDLINE_TEST             OFF
-- JERRY_CMDLINE_SNAPSHOT         OFF
-- JERRY_LIBFUZZER                OFF (FORCED BY COMPILER)
-- JERRY_PORT                     ON (FORCED BY CMDLINE OR LIBFUZZER OR TESTS)
-- JERRY_EXT                      ON (FORCED BY CMDLINE OR TESTS)
-- JERRY_MATH                     OFF
-- UNITTESTS                      OFF
-- DOCTESTS                       OFF
-- JERRY_CPOINTER_32_BIT          OFF
-- JERRY_DEBUGGER                 OFF
-- JERRY_ERROR_MESSAGES           OFF
-- JERRY_EXTERNAL_CONTEXT         OFF
-- JERRY_PARSER                   ON
-- JERRY_FUNCTION_TO_STRING       OFF
-- JERRY_LINE_INFO                OFF
-- JERRY_LOGGING                  OFF
-- JERRY_MEM_STATS                OFF
-- JERRY_MEM_GC_BEFORE_EACH_ALLOC OFF
-- JERRY_PARSER_DUMP_BYTE_CODE    OFF
-- JERRY_PROFILE                  es.next
-- JERRY_PROMISE_CALLBACK         OFF
-- JERRY_REGEXP_STRICT_MODE       OFF
-- JERRY_REGEXP_DUMP_BYTE_CODE    OFF
-- JERRY_SNAPSHOT_EXEC            OFF
-- JERRY_SNAPSHOT_SAVE            OFF
-- JERRY_SYSTEM_ALLOCATOR         OFF
-- JERRY_VALGRIND                 OFF
-- JERRY_VM_HALT                  OFF
-- JERRY_VM_THROW                 OFF
-- JERRY_GLOBAL_HEAP_SIZE         (512)
-- JERRY_GC_LIMIT                 (0)
-- JERRY_STACK_LIMIT              (0)
-- JERRY_GC_MARK_LIMIT            (8)
-- FEATURE_INIT_FINI              OFF
-- ENABLE_LINK_MAP                OFF
-- JERRY_TEST_STACK_MEASURE       OFF
-- Configuring done (0.1s)
-- Generating done (0.1s)
-- Build files have been written to: /home/diamant3/Desktop/jerryscript/build
[  0%] Built target amalgam
[  5%] Built target jerry-port
[  5%] Building C object jerry-core/CMakeFiles/jerry-core.dir/api/jerryscript.c.o
[  6%] Building C object jerry-core/CMakeFiles/jerry-core.dir/debugger/debugger.c.o
[  7%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-aggregateerror.c.o
[  8%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-array-iterator-prototype.c.o
[  8%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-array-prototype-unscopables.c.o
[  9%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-array-prototype.c.o
[ 10%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-arraybuffer-prototype.c.o
[ 10%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-async-iterator-prototype.c.o
[ 10%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-array.c.o
[ 10%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-date-prototype.c.o
[ 11%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-date.c.o
[ 11%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-error.c.o
[ 11%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-evalerror.c.o
[ 12%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-function-prototype.c.o
[ 12%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers-error.c.o
[ 13%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers-date.c.o
[ 14%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers-json.c.o
[ 14%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers-sort.c.o
[ 14%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers.c.o
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:34: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                  ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:41: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                         ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:48: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                                ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:55: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                                       ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:62: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                                              ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:69: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                                                     ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:39:76: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   39 | const char day_names_p[7][3] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
      |                                                                            ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:3: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |   ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:10: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |          ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:17: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                 ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:24: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                        ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:31: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                               ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:38: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                      ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:45: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                             ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:52: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                                    ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:59: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                                           ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:66: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                                                  ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:73: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                                                         ^~~~~
/home/diamant3/Desktop/jerryscript/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.c:45:80: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (4 chars into 3 available) [-Werror=unterminated-string-initialization]
   45 |   "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
      |                                                                                ^~~~~
[ 15%] Building C object jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-intrinsic.c.o
cc1: all warnings being treated as errors
gmake[2]: *** [jerry-core/CMakeFiles/jerry-core.dir/build.make:905: jerry-core/CMakeFiles/jerry-core.dir/ecma/builtin-objects/ecma-builtin-helpers-date.c.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[1]: *** [CMakeFiles/Makefile2:208: jerry-core/CMakeFiles/jerry-core.dir/all] Error 2
gmake: *** [Makefile:136: all] Error 2
==============================
Build failed with exit code: 2

GCC version

diamant3@fedora:~/Desktop/jerryscript$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/16/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,m2,cobol,algol68,lto --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugzilla.redhat.com/ --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-libstdcxx-backtrace --with-libstdcxx-zoneinfo=/usr/share/zoneinfo --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-16.1.1-build/gcc-16.1.1-20260501/obj-x86_64-redhat-linux/isl-install --enable-offload-targets=nvptx-none,amdgcn-amdhsa --enable-offload-defaulted --without-cuda-driver --enable-gnu-indirect-function --enable-cet --with-tune=generic --with-tls=gnu2 --with-arch_32=i686 --build=x86_64-redhat-linux --with-build-config=bootstrap-lto --enable-link-serialization=1 --disable-libssp
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.1.1 20260501 (Red Hat 16.1.1-1) (GCC)

@diamant3
Fix unterminated-string-initialization error on GCC 16.1
133057d 
JerryScript-DCO-1.0-Signed-off-by: Diamond Rivero <diamant3@proton.me>
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