layout: Use linked list for `struct romentry`

This gets rid of the entry limit and hopefully makes future layout
handling easier. We start by making `struct flashrom_layout` private
to `layout.c`.

Change-Id: I60a0aa1007ebcd5eb401db116f835d129b3e9732
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/33521
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

1 files changed, 3 insertions, 8 deletions

diff --git a/layout.h b/layout.h
index 49c1a1371..bf183a670 100644
--- a/layout.h
+++ b/layout.h
@@ -36,6 +36,8 @@ typedef uint32_t chipsize_t; /* Able to store the number of bytes of any support
 #define MAX_ROMLAYOUT	128
 
 struct romentry {
+	struct romentry *next;
+
 	chipoff_t start;
 	chipoff_t end;
 	bool included;
@@ -43,14 +45,7 @@ struct romentry {
 	char *file;
 };
 
-struct flashrom_layout {
-	/* entries store the entries specified in a layout file and associated run-time data */
-	struct romentry *entries;
-	/* the maximum number of entries */
-	size_t capacity;
-	/* the number of successfully parsed entries */
-	size_t num_entries;
-};
+struct flashrom_layout;
 
 struct layout_include_args {
 	char *name;