efi_loader: rename __efi_hello_world_*

In scripts/Makefile.lib we build section including helloworld.efi.
This allows to load the EFI binary with command 'bootefi hello'.

scripts/Makefile.lib contains explicit references to strings
containing helloworld and hello_world. This makes it impossible
to generalize the coding to accomodate additional built in
EFI binaries.

Let us rename the variables __efi_hello_world_* to
__efi_helloworld_*.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

cmd/bootefi.c

@@ -297,14 +297,14 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return CMD_RET_USAGE;
 #ifdef CONFIG_CMD_BOOTEFI_HELLO
 	if (!strcmp(argv[1], "hello")) {
-		ulong size = __efi_hello_world_end - __efi_hello_world_begin;
+		ulong size = __efi_helloworld_end - __efi_helloworld_begin;
 
 		saddr = env_get("loadaddr");
 		if (saddr)
 			addr = simple_strtoul(saddr, NULL, 16);
 		else
 			addr = CONFIG_SYS_LOAD_ADDR;
-		memcpy((char *)addr, __efi_hello_world_begin, size);
+		memcpy((char *)addr, __efi_helloworld_begin, size);
 	} else
 #endif
 	{

include/asm-generic/sections.h

@@ -22,8 +22,8 @@ extern char __kprobes_text_start[], __kprobes_text_end[];
 extern char __entry_text_start[], __entry_text_end[];
 extern char __initdata_begin[], __initdata_end[];
 extern char __start_rodata[], __end_rodata[];
-extern char __efi_hello_world_begin[];
-extern char __efi_hello_world_end[];
+extern char __efi_helloworld_begin[];
+extern char __efi_helloworld_end[];
 
 /* Start and end of .ctors section - used for constructor calls. */
 extern char __ctors_start[], __ctors_end[];

scripts/Makefile.lib

@@ -367,11 +367,11 @@ cmd_S_efi=						\
 (							\
 	echo '.section .rodata.efi.init,"a"';		\
 	echo '.balign 16';				\
-	echo '.global __efi_hello_world_begin';		\
-	echo '__efi_hello_world_begin:';		\
+	echo '.global __efi_helloworld_begin';		\
+	echo '__efi_helloworld_begin:';		\
 	echo '.incbin "$<" ';				\
-	echo '__efi_hello_world_end:';			\
-	echo '.global __efi_hello_world_end';		\
+	echo '__efi_helloworld_end:';			\
+	echo '.global __efi_helloworld_end';		\
 	echo '.balign 16';				\
 ) > $@