luna: Make OwnedStringView::clone() just call from_string_literal()

apps/CMakeLists.txt

@@ -1,5 +1,6 @@
 function(luna_app SOURCE_FILE APP_NAME)
     add_executable(${APP_NAME} ${SOURCE_FILE})
+    target_compile_options(${APP_NAME} PRIVATE -Os -Wall -Wextra -pedantic -Werror)
     add_dependencies(${APP_NAME} libc)
     target_include_directories(${APP_NAME} PRIVATE ${LUNA_BASE}/usr/include)
     install(TARGETS ${APP_NAME} DESTINATION ${LUNA_ROOT}/initrd/bin)

libc/CMakeLists.txt

@@ -31,7 +31,8 @@ target_link_libraries(bare_libc PUBLIC luna)
 
 target_include_directories(bare_libc PUBLIC include/)
 
-target_compile_options(bare_libc PRIVATE -Wall -Wextra -Werror -pedantic -nostdlib -fno-exceptions -fno-rtti)
+target_compile_options(bare_libc PRIVATE -Os -Wall -Wextra -Werror -pedantic -nostdlib)
+target_compile_options(bare_libc PRIVATE -fno-exceptions -fno-rtti)
 
 target_link_options(bare_libc PRIVATE -nostdlib)
 

luna/CMakeLists.txt

@@ -25,7 +25,7 @@ set(SOURCES
 
 add_library(luna-freestanding ${FREESTANDING_SOURCES})
 target_compile_definitions(luna-freestanding PRIVATE USE_FREESTANDING)
-target_compile_options(luna-freestanding PRIVATE -Wall -Wextra -Werror -Wvla)
+target_compile_options(luna-freestanding PRIVATE -Os -Wall -Wextra -Werror -Wvla)
 target_compile_options(luna-freestanding PRIVATE -Wdisabled-optimization -Wformat=2 -Winit-self -Wsign-conversion)
 target_compile_options(luna-freestanding PRIVATE -Wmissing-include-dirs -Wswitch-default -Wcast-qual -Wundef) 
 target_compile_options(luna-freestanding PRIVATE -Wcast-align -Wwrite-strings -Wlogical-op -Wredundant-decls -Wshadow -Wconversion)
@@ -37,7 +37,7 @@ target_include_directories(luna-freestanding PUBLIC include/)
 set_target_properties(luna-freestanding PROPERTIES CXX_STANDARD 20)
 
 add_library(luna ${SOURCES})
-target_compile_options(luna PRIVATE -Wall -Wextra -Werror -Wvla)
+target_compile_options(luna PRIVATE -Os -Wall -Wextra -Werror -Wvla)
 target_compile_options(luna PRIVATE -Wdisabled-optimization -Wformat=2 -Winit-self)
 target_compile_options(luna PRIVATE -Wmissing-include-dirs -Wswitch-default -Wcast-qual -Wundef) 
 target_compile_options(luna PRIVATE -Wcast-align -Wwrite-strings -Wlogical-op -Wredundant-decls -Wshadow -Wconversion)

luna/src/Check.cpp

@@ -1,6 +1,11 @@
 #include <luna/Attributes.h>
 
-_weak [[noreturn]] bool __check_failed(const char*, const char*, const char*, const char*)
+#include <stdio.h>
+#include <stdlib.h>
+
+_weak [[noreturn]] bool __check_failed(const char* file, const char* line, const char* func, const char* expr)
 {
-    __builtin_trap();
+    // FIXME: Output to standard error instead of standard output.
+    printf("Check failed at %s:%s in %s: %s\n", file, line, func, expr);
+    abort();
 }

luna/src/OwnedStringView.cpp

@@ -28,11 +28,7 @@ OwnedStringView::~OwnedStringView()
 
 Result<OwnedStringView> OwnedStringView::clone() const
 {
-    char* const c_str = strdup(m_string);
-
-    if (!c_str) return err(ENOMEM);
-
-    return OwnedStringView { c_str };
+    return from_string_literal(m_string);
 }
 
 const char& OwnedStringView::operator[](usize index) const
@@ -43,7 +39,7 @@ const char& OwnedStringView::operator[](usize index) const
 
 Result<OwnedStringView> OwnedStringView::from_string_literal(const char* str)
 {
-    char* dup = strdup(str);
+    char* const dup = strdup(str);
     if (!dup) return err(ENOMEM);
     return OwnedStringView { dup };
 }