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-rw-r--r--src/cpu/intel/car/romstage.c13
-rw-r--r--src/include/adainit.h6
-rw-r--r--src/lib/Kconfig5
-rw-r--r--src/lib/Makefile.inc1
-rw-r--r--src/lib/gnat/Makefile.inc3
5 files changed, 28 insertions, 0 deletions
diff --git a/src/cpu/intel/car/romstage.c b/src/cpu/intel/car/romstage.c
index c7c218b8ed..7df512dce0 100644
--- a/src/cpu/intel/car/romstage.c
+++ b/src/cpu/intel/car/romstage.c
@@ -1,5 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
+#include <adainit.h>
#include <arch/romstage.h>
#include <arch/symbols.h>
#include <commonlib/helpers.h>
@@ -40,6 +41,18 @@ void __noreturn romstage_main(void)
if (CONFIG(VBOOT_EARLY_EC_SYNC))
vboot_sync_ec();
+ /*
+ * We can generally jump between C and Ada code back and forth
+ * without trouble. But since we don't have an Ada main() we
+ * have to do some Ada package initializations that GNAT would
+ * do there. This has to be done before calling any Ada code.
+ *
+ * The package initializations should not have any dependen-
+ * cies on C code. So we can call them here early, and don't
+ * have to worry at which point we can start to use Ada.
+ */
+ romstage_adainit();
+
mainboard_romstage_entry();
/* Check the stack. */
diff --git a/src/include/adainit.h b/src/include/adainit.h
index 4953d4476d..041ef677ad 100644
--- a/src/include/adainit.h
+++ b/src/include/adainit.h
@@ -15,6 +15,12 @@
* lizations automatically. When not, we have to call it explicitly.
*/
+#if CONFIG(ROMSTAGE_ADA)
+void romstage_adainit(void);
+#else
+static inline void romstage_adainit(void) {}
+#endif
+
#if CONFIG(RAMSTAGE_ADA)
void ramstage_adainit(void);
#else
diff --git a/src/lib/Kconfig b/src/lib/Kconfig
index ae96fc61ee..d108962bac 100644
--- a/src/lib/Kconfig
+++ b/src/lib/Kconfig
@@ -5,6 +5,11 @@ config MISSING_BOARD_RESET
implementation. This activates a stub that logs the missing
board reset and halts execution.
+config ROMSTAGE_ADA
+ bool
+ help
+ Selected by features that use Ada code in romstage.
+
config RAMSTAGE_ADA
bool
help
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 1c7bc22c1e..3e5b151b13 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -339,6 +339,7 @@ $(objcbfs)/%.debug.rmod: $(objcbfs)/%.debug | $(RMODTOOL)
$(obj)/%.elf.rmod: $(obj)/%.elf | $(RMODTOOL)
$(RMODTOOL) -i $< -o $@
+romstage-$(CONFIG_ROMSTAGE_ADA) += cb.ads
ramstage-$(CONFIG_RAMSTAGE_ADA) += cb.ads
ifeq ($(CONFIG_RAMSTAGE_LIBHWBASE),y)
diff --git a/src/lib/gnat/Makefile.inc b/src/lib/gnat/Makefile.inc
index 065ba71404..150a715067 100644
--- a/src/lib/gnat/Makefile.inc
+++ b/src/lib/gnat/Makefile.inc
@@ -51,6 +51,9 @@ $(foreach arch,$(standard-archs), \
$(foreach arch,$(standard-archs), \
$(eval $(call libgnat-template,$(arch))))
+ifeq ($(CONFIG_ROMSTAGE_ADA),y)
+romstage-libs += $(obj)/libgnat-$(ARCH-romstage-y)/libgnat.a
+endif
ifeq ($(CONFIG_RAMSTAGE_ADA),y)
ramstage-libs += $(obj)/libgnat-$(ARCH-ramstage-y)/libgnat.a
endif