[coreboot-gerrit] New patch to review for coreboot: fmaptool: Export some fmap knowledge to the build environment

[Patrick Georgi (pgeorgi@google.com)]

Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14571

-gerrit

commit d1d90185fa05de08273153199def7da189d4aa50
Author: Patrick Georgi <pgeorgi at chromium.org>
Date:   Mon May 2 17:02:53 2016 +0800

    fmaptool: Export some fmap knowledge to the build environment
    
    By exporting base and offset of CBFS-formatted fmap regions, the code
    can use these when it's not prudent to do a runtime lookup.
    
    Change-Id: I20523b5cea68880af4cb1fcea4b37bb8ac2a23db
    Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
---
 util/cbfstool/fmaptool.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/util/cbfstool/fmaptool.c b/util/cbfstool/fmaptool.c
index 1eda822..5aafffd 100644
--- a/util/cbfstool/fmaptool.c
+++ b/util/cbfstool/fmaptool.c
@@ -101,6 +101,20 @@ static bool write_header(const char *out_fname,
 	fputs("#ifndef FMAPTOOL_GENERATED_HEADER_H_\n", header);
 	fputs("#define FMAPTOOL_GENERATED_HEADER_H_\n\n", header);
 	fprintf(header, "#define %s %#x\n\n", HEADER_FMAP_OFFSET, fmap_offset);
+
+	/* also add defines for each CBFS-carrying fmap region: base and size */
+	cbfs_section_iterator_t cbfs_it = cbfs_sections_iterator();
+	while (cbfs_it) {
+		const struct flashmap_descriptor *item =
+				cbfs_sections_iterator_deref(cbfs_it);
+		assert(item->offset_known && item->size_known);
+		fprintf(header, "#define ___FMAP__%s_BASE 0x%x\n",
+			item->name, item->offset);
+		fprintf(header, "#define ___FMAP__%s_SIZE 0x%x\n",
+			item->name, item->size);
+		cbfs_sections_iterator_advance(&cbfs_it);
+	}
+
 	fputs("#endif\n", header);
 
 	fclose(header);