[S] Change in coreboot[main]: [WIP]drivers/option/cfr: Collect CFR forms generated at compile time

[Patrick Rudolph (Code Review)]

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/78240?usp=email )

Change subject: [WIP]drivers/option/cfr: Collect CFR forms generated at compile time
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[WIP]drivers/option/cfr: Collect CFR forms generated at compile time

Add CFR forms not passed as argument, but those present in ramstage.

Change-Id: Ia5bcc42b5098a019bdf1c28cb5ebdfba2a3ff3f0
Signed-off-by: Patrick Rudolph 
---
M src/drivers/option/cfr.c
M src/drivers/option/cfr.h
M src/lib/program.ld
3 files changed, 25 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/78240/1

diff --git a/src/drivers/option/cfr.c b/src/drivers/option/cfr.c
index 4803116..c3e1aab 100644
--- a/src/drivers/option/cfr.c
+++ b/src/drivers/option/cfr.c
@@ -301,8 +301,10 @@

void cfr_write_setup_menu(struct lb_cfr *cfr_root, struct sm_obj_form *sm_root[])
 {
-	size_t i = 0;
    void *current = cfr_root;
+	struct sm_object *obj;
+	size_t i = 0;
+
    assert(sm_root);
    assert(cfr_root);

@@ -313,6 +315,12 @@
    while (sm_root[i])
    	current += sm_write_form(current, sm_root[i++], 0, 0);

+	/*
+	 * Add generic forms.
+	 */
+	for (obj = &_cfr_forms[0]; obj != &_ecfr_forms[0]; obj++)
+		current += sm_write_form(current, &obj->sm_form, 0, 0);
+
    cfr_root->size = cfr_record_size((char *)cfr_root, current);

cfr_root->checksum = CRC(cfr_root + 1, cfr_root->size - sizeof(*cfr_root), crc32_byte);
diff --git a/src/drivers/option/cfr.h b/src/drivers/option/cfr.h
index 93bc96c..8550574 100644
--- a/src/drivers/option/cfr.h
+++ b/src/drivers/option/cfr.h
@@ -99,4 +99,15 @@

void cfr_write_setup_menu(struct lb_cfr *cfr_root, struct sm_obj_form *sm_root[]);

+#if ENV_RAMSTAGE
+#define __cfr_form const __attribute__((used, __section__(".rodata.cfr_forms")))
+#else
+#define __cfr_form const __attribute__((unused))
+#endif
+
+/** start of compile time generated cfr form array */
+extern struct sm_object _cfr_forms[];
+/** end of compile time generated cfr form array */
+extern struct sm_object _ecfr_forms[];
+
 #endif	/* DRIVERS_OPTION_CFR_H */
diff --git a/src/lib/program.ld b/src/lib/program.ld
index f406f9f..7db3015 100644
--- a/src/lib/program.ld
+++ b/src/lib/program.ld
@@ -50,6 +50,11 @@
    KEEP(*(.rodata.cpu_driver));
    _ecpu_drivers = .;
    RECORD_SIZE(cpu_drivers)
+	. = ALIGN(ARCH_POINTER_ALIGN_SIZE);
+	_cfr_forms = .;
+	KEEP(*(.rodata.cfr_forms));
+	_ecfr_forms = .;
+	RECORD_SIZE(cfr_forms)
 #endif

. = ALIGN(ARCH_POINTER_ALIGN_SIZE);