arch: Add --whole-archive linker option for some of architectures

Add Kconfig option that enable --whole-archive linker option for some of architectures

Signed-off-by: yanghuatao <yanghuatao@xiaomi.com>

Kconfig

@@ -2483,6 +2483,14 @@ config DEBUG_OPT_UNUSED_SECTIONS
 		linker by compiling with " -ffunction-sections -fdata-sections ", and
 		linking with " --gc-sections ".
 
+config DEBUG_LINK_WHOLE_ARCHIVE
+       bool "Force every object to be included in the resulting shared library."
+       default n
+       depends on DEBUG_OPT_UNUSED_SECTIONS
+       ---help---
+               Selecting this option will pass "--whole-archive" to ld
+               when linking NuttX ELF.
+
 config DEBUG_LINK_MAP
 	bool "Generate link map file"
 	default y

arch/arm/src/cmake/Toolchain.cmake

@@ -157,6 +157,12 @@ if(CONFIG_DEBUG_OPT_UNUSED_SECTIONS)
   add_compile_options(-ffunction-sections -fdata-sections)
 endif()
 
+# Debug --whole-archive
+
+if(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE)
+  add_link_options(-Wl,--whole-archive)
+endif()
+
 if(CONFIG_ENDIAN_BIG)
   add_compile_options(-mbig-endian)
 endif()

arch/arm/src/common/Toolchain.defs

@@ -351,6 +351,12 @@ ifeq ($(CONFIG_ARM_TOOLCHAIN_ARMCLANG),)
   endif
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)

arch/arm64/src/Toolchain.defs

@@ -137,6 +137,12 @@ ifeq ($(CONFIG_DEBUG_OPT_UNUSED_SECTIONS),y)
   ARCHOPTIMIZATION += -ffunction-sections -fdata-sections
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)

arch/mips/src/mips32/Toolchain.defs

@@ -249,6 +249,12 @@ ifeq ($(CONFIG_DEBUG_OPT_UNUSED_SECTIONS),y)
   ARCHOPTIMIZATION += -ffunction-sections -fdata-sections
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)

arch/risc-v/src/cmake/Toolchain.cmake

@@ -197,6 +197,12 @@ if(CONFIG_DEBUG_OPT_UNUSED_SECTIONS)
   add_compile_options(-ffunction-sections -fdata-sections)
 endif()
 
+# Debug --whole-archive
+
+if(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE)
+  add_link_options(-Wl,--whole-archive)
+endif()
+
 add_link_options(-nostdlib)
 add_link_options(-Wl,--entry=__start)
 

arch/risc-v/src/common/Toolchain.defs

@@ -137,6 +137,12 @@ endif
 LDFLAGS          += -nostdlib
 ARCHOPTIMIZATION += -nostdlib
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)

arch/xtensa/src/lx6/Toolchain.defs

@@ -149,6 +149,12 @@ ifeq ($(CONFIG_DEBUG_LINK_MAP),y)
   LDFLAGS += --cref -Map=$(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx.map)
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
   ARCHOPTIMIZATION += -g
 endif

arch/xtensa/src/lx7/Toolchain.defs

@@ -147,6 +147,12 @@ ifeq ($(CONFIG_DEBUG_OPT_UNUSED_SECTIONS),y)
   ARCHOPTIMIZATION += -ffunction-sections -fdata-sections
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)

arch/z80/src/ez80/Toolchain.defs

@@ -79,6 +79,12 @@ ifeq ($(CONFIG_DEBUG_OPT_UNUSED_SECTIONS),y)
   ARCHOPTIMIZATION += -ffunction-sections -fdata-sections
 endif
 
+# Debug --whole-archive
+
+ifeq ($(CONFIG_DEBUG_LINK_WHOLE_ARCHIVE),y)
+  LDFLAGS += --whole-archive
+endif
+
 # Debug link map
 
 ifeq ($(CONFIG_DEBUG_LINK_MAP),y)