Application.mk and main.c files: Change builtin's entry point from main to xxx_main by macro expansion. This change make the entry point fully compliant with POSIX/ANSI standard.

examples/elf/Kconfig

@@ -4,7 +4,7 @@
 #
 
 config EXAMPLES_ELF
-	bool "ELF Loader Example"
+	tristate "ELF Loader Example"
 	default n
 	select LIBC_EXECFUNCS
 	depends on ELF

examples/elf/Makefile

@@ -40,8 +40,10 @@ include $(TOPDIR)/Make.defs
 CSRCS = symtab.c
 MAINSRC = elf_main.c
 
-CONFIG_XYZ_PROGNAME ?= elf$(EXEEXT)
-PROGNAME = $(CONFIG_XYZ_PROGNAME)
+PROGNAME = elf
+PRIORITY = SCHED_PRIORITY_DEFAULT
+STACKSIZE = 2048
+MODULE = $(CONFIG_EXAMPLES_ELF)
 
 ROOTDEPPATH := --dep-path tests
 

examples/elf/elf_main.c

@@ -233,11 +233,7 @@ static inline void testheader(FAR const char *progname)
  * Name: elf_main
  ****************************************************************************/
 
-#ifdef BUILD_MODULE
 int main(int argc, FAR char *argv[])
-#else
-int elf_main(int argc, char *argv[])
-#endif
 {
 #ifdef CONFIG_EXAMPLES_ELF_FSREMOVEABLE
   struct stat buf;