build: run gc-sections

Signed-off-by: He Xian <hexian000@outlook.com>
hexian000 · Nov 6, 2024 · bebebfc · bebebfc
1 parent 64f4edc
commit bebebfc
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -62,8 +62,10 @@ set(CMAKE_C_STANDARD 11)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffile-prefix-map=${PROJECT_SOURCE_DIR}/=")
-    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} -s")
-    set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} -s")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -ffunction-sections -fdata-sections")
+    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} -s -Wl,--gc-sections")
+    set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -ffunction-sections -fdata-sections")
+    set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} -s -Wl,--gc-sections")
     if(ENABLE_SANITIZERS)
         set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,leak,undefined -fstack-protector-all")
         set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,leak,undefined -static-libasan -static-liblsan -static-libubsan")
@@ -83,8 +85,10 @@ if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
     endif()
 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffile-compilation-dir=${PROJECT_SOURCE_DIR}")
-    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} -s")
-    set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} -s")
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -ffunction-sections -fdata-sections")
+    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} -s -Wl,--gc-sections")
+    set(CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} -ffunction-sections -fdata-sections")
+    set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} -s -Wl,--gc-sections")
     if(ENABLE_SANITIZERS)
         set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,leak,undefined -fstack-protector-all")
         set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address,leak,undefined -static-libsan")