[U-Boot] [PATCH] Make FIT support really optional

[Fabrice Fontaine]

Due to some mistakes in the source code, it was not possible to really
turn FIT support off. This commit fixes the problem by means of the
following changes:

- Enclose "bootm_host_load_image" and "bootm_host_load_images" between
  checks for CONFIG_FIT_SIGNATURE, in common/bootm.c.

- Enclose the declaration of "bootm_host_load_images" between checks for
  CONFIG_FIT_SIGNATURE, in common/bootm.h.

- Condition the compilation and linking of fit_common.o fit_image.o
  image-host.o common/image-fit.o to CONFIG_FIT=y, in tools/Makefile.

Signed-off-by: Carlos Santos <casantos at datacom.ind.br>
[fabio: adapt for 2016.07]
Signed-off-by: Fabio Estevam <festevam at gmail.com>
[Ricardo: fix conditional compilation and linking of the files mentioned above
for 2016.07]
Signed-off-by: Ricardo Martincoski <ricardo.martincoski at gmail.com>
[Jörg: adapt for 2019.01]
Signed-off-by: Jörg Krause <joerg.krause at embedded.rocks>
[Retrieved from:
https://git.buildroot.net/buildroot/tree/package/uboot-tools/0003-Make-FIT-support-really-optional.patch]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 common/bootm.c  | 2 ++
 include/bootm.h | 2 ++
 tools/Makefile  | 6 ++----
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/common/bootm.c b/common/bootm.c
index b5d37d38db..d193751647 100644
--- a/common/bootm.c
+++ b/common/bootm.c
@@ -924,6 +924,7 @@ void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
 	memmove(to, from, len);
 }
 
+#if defined(CONFIG_FIT_SIGNATURE)
 static int bootm_host_load_image(const void *fit, int req_image_type)
 {
 	const char *fit_uname_config = NULL;
@@ -988,5 +989,6 @@ int bootm_host_load_images(const void *fit, int cfg_noffset)
 	/* Return the first error we found */
 	return err;
 }
+#endif
 
 #endif /* ndef USE_HOSTCC */
diff --git a/include/bootm.h b/include/bootm.h
index e2cc6d4b99..f771b733f5 100644
--- a/include/bootm.h
+++ b/include/bootm.h
@@ -42,7 +42,9 @@ void lynxkdi_boot(image_header_t *hdr);
 
 boot_os_fn *bootm_os_get_boot_func(int os);
 
+#if defined(CONFIG_FIT_SIGNATURE)
 int bootm_host_load_images(const void *fit, int cfg_noffset);
+#endif
 
 int boot_selected_os(int argc, char * const argv[], int state,
 		     bootm_headers_t *images, boot_os_fn *boot_fn);
diff --git a/tools/Makefile b/tools/Makefile
index eadeba417d..e2f572cae1 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -58,6 +58,7 @@ hostprogs-$(CONFIG_FIT_SIGNATURE) += fit_info fit_check_sign
 
 hostprogs-$(CONFIG_CMD_BOOTEFI_SELFTEST) += file2include
 
+FIT_OBJS-$(CONFIG_FIT) := fit_common.o fit_image.o image-host.o common/image-fit.o
 FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := common/image-sig.o
 
 # The following files are synced with upstream DTC.
@@ -80,16 +81,13 @@ ROCKCHIP_OBS = lib/rc4.o rkcommon.o rkimage.o rksd.o rkspi.o
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
 			atmelimage.o \
+			$(FIT_OBJS-y) \
 			$(FIT_SIG_OBJS-y) \
 			common/bootm.o \
 			lib/crc32.o \
 			default_image.o \
 			lib/fdtdec_common.o \
 			lib/fdtdec.o \
-			fit_common.o \
-			fit_image.o \
-			common/image-fit.o \
-			image-host.o \
 			common/image.o \
 			imagetool.o \
 			imximage.o \
-- 
2.20.1