cbfstool: add eflparsing.h

elfparsing.h serves as the header to working with the elf
parser. Additionally, only include what is needed by the other
files. Many had no reason to be including elf.h aside from fixing
compilation problems when including cbfs.h.

Change-Id: I9eb5f09f3122aa18beeca52d2e4dc2102d70fb9d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5370
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

util/cbfstool/cbfs-mkpayload.c

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "elf.h"
+#include "elfparsing.h"
 #include "common.h"
 #include "cbfs.h"
 #include "fv.h"

util/cbfstool/cbfs-mkstage.c

@@ -24,7 +24,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "elf.h"
+#include "elfparsing.h"
 #include "common.h"
 #include "cbfs.h"
 

util/cbfstool/cbfs.h

@@ -20,7 +20,6 @@
 #define __CBFS_H
 
 #include <stdint.h>
-#include "elf.h"
 
 /* create a magic number in host-byte order.
  * b3 is the high order byte.
@@ -129,14 +128,6 @@ uint32_t get_cbfs_compression(const char *name, uint32_t unknown);
 /* common.c */
 void cbfs_file_get_header(struct buffer *buf, struct cbfs_file *file);
 
-/* elfheaders.c */
-int
-elf_headers(const struct buffer *pinput,
-	    uint32_t arch,
-	    Elf64_Ehdr *ehdr,
-	    Elf64_Phdr **pphdr,
-	    Elf64_Shdr **pshdr);
-
 /* cbfs-mkpayload.c */
 void xdr_segs(struct buffer *output,
 	      struct cbfs_payload_segment *segs, int nseg);

util/cbfstool/cbfs_image.c

@@ -24,7 +24,6 @@
 #include <string.h>
 
 #include "common.h"
-#include "elf.h"
 #include "cbfs_image.h"
 
 /* The file name align is not defined in CBFS spec -- only a preference by

util/cbfstool/cbfstool.c

@@ -26,7 +26,6 @@
 #include <unistd.h>
 #include <getopt.h>
 #include "common.h"
-#include "elf.h"
 #include "cbfs.h"
 #include "cbfs_image.h"
 #include "fit.h"

util/cbfstool/elfheaders.c

@@ -21,7 +21,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "elf.h"
+#include "elfparsing.h"
 #include "common.h"
 #include "cbfs.h"
 

util/cbfstool/elfparsing.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#ifndef ELFPARSING_H
+#define ELFPARSING_H
+
+#include "elf.h"
+
+struct buffer;
+
+int
+elf_headers(const struct buffer *pinput,
+	    uint32_t arch,
+	    Elf64_Ehdr *ehdr,
+	    Elf64_Phdr **pphdr,
+	    Elf64_Shdr **pshdr);
+
+#endif /* ELFPARSING_H */

util/cbfstool/fit.c

@@ -23,7 +23,6 @@
 #include <stdio.h>
 
 #include "common.h"
-#include "elf.h"
 #include "cbfs.h"
 #include "cbfs_image.h"
 #include "fit.h"