binfmt: Move [elf|nxflat]_[un]initialize to private header file

like what builtin binary format do

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

binfmt/Makefile

@@ -41,6 +41,18 @@ ifeq ($(CONFIG_BUILTIN),y)
 CSRCS += builtin.c
 endif
 
+# ELF application interfaces
+
+ifeq ($(CONFIG_ELF),y)
+CSRCS += elf.c
+endif
+
+# NXFLAT application interfaces
+
+ifeq ($(CONFIG_NXFLAT),y)
+CSRCS += nxflat.c
+endif
+
 # Add configured binary modules
 
 include libnxflat/Make.defs

binfmt/binfmt.h

@@ -165,6 +165,7 @@ void binfmt_freeargv(FAR char * const *argv);
 #  define binfmt_freeenv(envp)
 #endif
 
+#ifdef CONFIG_BUILTIN
 /****************************************************************************
  * Name: builtin_initialize
  *
@@ -179,9 +180,7 @@ void binfmt_freeargv(FAR char * const *argv);
  *
  ****************************************************************************/
 
-#ifdef CONFIG_BUILTIN
 int builtin_initialize(void);
-#endif
 
 /****************************************************************************
  * Name: builtin_uninitialize
@@ -194,10 +193,72 @@ int builtin_initialize(void);
  *
  ****************************************************************************/
 
-#ifdef CONFIG_BUILTIN
 void builtin_uninitialize(void);
 #endif
 
+#ifdef CONFIG_ELF
+/****************************************************************************
+ * Name: elf_initialize
+ *
+ * Description:
+ *   In order to use the ELF binary format, this function must be called
+ *   during system initialization to register the ELF binary format.
+ *
+ * Returned Value:
+ *   This is a NuttX internal function so it follows the convention that
+ *   0 (OK) is returned on success and a negated errno is returned on
+ *   failure.
+ *
+ ****************************************************************************/
+
+int elf_initialize(void);
+
+/****************************************************************************
+ * Name: elf_uninitialize
+ *
+ * Description:
+ *   Unregister the ELF binary loader
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void elf_uninitialize(void);
+#endif
+
+#ifdef CONFIG_NXFLAT
+/****************************************************************************
+ * Name: nxflat_initialize
+ *
+ * Description:
+ *   In order to use the NxFLAT binary format, this function must be called
+ *   during system initialization to register the NXFLAT binary
+ *   format.
+ *
+ * Returned Value:
+ *   This is a NuttX internal function so it follows the convention that
+ *   0 (OK) is returned on success and a negated errno is returned on
+ *   failure.
+ *
+ ****************************************************************************/
+
+int nxflat_initialize(void);
+
+/****************************************************************************
+ * Name: nxflat_uninitialize
+ *
+ * Description:
+ *   Unregister the NXFLAT binary loader
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void nxflat_uninitialize(void);
+#endif
+
 #undef EXTERN
 #if defined(__cplusplus)
 }

binfmt/binfmt_initialize.c

@@ -25,9 +25,6 @@
 #include <nuttx/config.h>
 
 #include <nuttx/binfmt/binfmt.h>
-#include <nuttx/binfmt/elf.h>
-#include <nuttx/binfmt/nxflat.h>
-#include <nuttx/lib/builtin.h>
 
 #include <debug.h>
 

binfmt/libelf/Make.defs

@@ -20,10 +20,6 @@
 
 ifeq ($(CONFIG_ELF),y)
 
-# ELF application interfaces
-
-CSRCS += elf.c
-
 # ELF library
 
 CSRCS += libelf_bind.c libelf_init.c libelf_addrenv.c libelf_iobuffer.c

binfmt/libnxflat/Make.defs

@@ -20,10 +20,6 @@
 
 ifeq ($(CONFIG_NXFLAT),y)
 
-# NXFLAT application interfaces
-
-CSRCS += nxflat.c
-
 # NXFLAT library
 
 CSRCS += libnxflat_init.c libnxflat_uninit.c libnxflat_addrenv.c

include/nuttx/binfmt/elf.h

@@ -158,35 +158,6 @@ extern "C"
 #define EXTERN extern
 #endif
 
-/****************************************************************************
- * Name: elf_initialize
- *
- * Description:
- *   In order to use the ELF binary format, this function must be called
- *   during system initialization to register the ELF binary format.
- *
- * Returned Value:
- *   This is a NuttX internal function so it follows the convention that
- *   0 (OK) is returned on success and a negated errno is returned on
- *   failure.
- *
- ****************************************************************************/
-
-int elf_initialize(void);
-
-/****************************************************************************
- * Name: elf_uninitialize
- *
- * Description:
- *   Unregister the ELF binary loader
- *
- * Returned Value:
- *   None
- *
- ****************************************************************************/
-
-void elf_uninitialize(void);
-
 /****************************************************************************
  * Name: elf_init
  *

include/nuttx/binfmt/nxflat.h

@@ -112,36 +112,6 @@ extern "C"
 #define EXTERN extern
 #endif
 
-/****************************************************************************
- * Name: nxflat_initialize
- *
- * Description:
- *   In order to use the NxFLAT binary format, this function must be called
- *   during system initialization to register the NXFLAT binary
- *   format.
- *
- * Returned Value:
- *   This is a NuttX internal function so it follows the convention that
- *   0 (OK) is returned on success and a negated errno is returned on
- *   failure.
- *
- ****************************************************************************/
-
-int nxflat_initialize(void);
-
-/****************************************************************************
- * Name: nxflat_uninitialize
- *
- * Description:
- *   Unregister the NXFLAT binary loader
- *
- * Returned Value:
- *   None
- *
- ****************************************************************************/
-
-void nxflat_uninitialize(void);
-
 /****************************************************************************
  * Name: nxflat_verifyheader
  *