[PATCH v2 1/8] spl: binman: Fix use of undeclared u_boot_any symbols

[Alper Nebi Yasak]

Some SPL functions directly use the binman 'u_boot_any' symbols to get
U-Boot's binman image position. These symbols are declared by the
SPL/TPL_BINMAN_SYMBOLS configs, but they are accessed by macros defined
by just CONFIG_BINMAN. So when BINMAN is enabled and BINMAN_SYMBOLS is
disabled, the code tries to use undeclared symbols and we get an error.

Therefore, any use of 'u_boot_any' symbols in the code is an implicit
dependency on SPL/TPL_BINMAN_SYMBOLS. However, in the current uses
they are meant to be the next phase's values, where that happens to be
U-Boot. In the meantime, helper funcions spl_get_image_pos/size() were
introduced to get these values.

Convert all uses of u_boot_any symbols to these functions, so we only
access these symbols at one place. Make sure they will not use these
symbols when the BINMAN_SYMBOLS configs are disabled, by returning early
in those cases.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>
---

(no changes since v1)

 common/spl/spl.c     | 10 +++++++---
 common/spl/spl_ram.c |  2 +-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/common/spl/spl.c b/common/spl/spl.c
index 2a69a7c9324d..5630dcdb5c1e 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -149,9 +149,11 @@ void spl_fixup_fdt(void *fdt_blob)
 #endif
 }
 
-#if CONFIG_IS_ENABLED(BINMAN_SYMBOLS)
 ulong spl_get_image_pos(void)
 {
+	if (!CONFIG_IS_ENABLED(BINMAN_SYMBOLS))
+		return BINMAN_SYM_MISSING;
+
 #ifdef CONFIG_VPL
 	if (spl_next_phase() == PHASE_VPL)
 		return binman_sym(ulong, u_boot_vpl, image_pos);
@@ -163,6 +165,9 @@ ulong spl_get_image_pos(void)
 
 ulong spl_get_image_size(void)
 {
+	if (!CONFIG_IS_ENABLED(BINMAN_SYMBOLS))
+		return BINMAN_SYM_MISSING;
+
 #ifdef CONFIG_VPL
 	if (spl_next_phase() == PHASE_VPL)
 		return binman_sym(ulong, u_boot_vpl, size);
@@ -171,7 +176,6 @@ ulong spl_get_image_size(void)
 		binman_sym(ulong, u_boot_spl, size) :
 		binman_sym(ulong, u_boot_any, size);
 }
-#endif /* BINMAN_SYMBOLS */
 
 ulong spl_get_image_text_base(void)
 {
@@ -222,7 +226,7 @@ __weak struct image_header *spl_get_load_buffer(ssize_t offset, size_t size)
 
 void spl_set_header_raw_uboot(struct spl_image_info *spl_image)
 {
-	ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
+	ulong u_boot_pos = spl_get_image_pos();
 
 	spl_image->size = CONFIG_SYS_MONITOR_LEN;
 
diff --git a/common/spl/spl_ram.c b/common/spl/spl_ram.c
index 829645925718..d64710878cf2 100644
--- a/common/spl/spl_ram.c
+++ b/common/spl/spl_ram.c
@@ -70,7 +70,7 @@ static int spl_ram_load_image(struct spl_image_info *spl_image,
 		load.read = spl_ram_load_read;
 		spl_load_simple_fit(spl_image, &load, 0, header);
 	} else {
-		ulong u_boot_pos = binman_sym(ulong, u_boot_any, image_pos);
+		ulong u_boot_pos = spl_get_image_pos();
 
 		debug("Legacy image\n");
 		/*
-- 
2.36.1