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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2018-01-17 20:16:09 +0100
committerAlexander Graf <agraf@suse.de>2018-01-22 23:09:12 +0100
commitac020196166b48371433772db645eab7de8c2ede (patch)
tree6a77a6b1969e7e6e85bdb7c0ce06fa308d7429b9 /tools
parent727a1afb341b00cdb30c473a0edcb464fea75577 (diff)
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tools: provide a tool to convert a binary file to an include
For testing EFI disk management we need an in-memory image of a disk. The tool file2include converts a file to a C include. The file is separated into strings of 8 bytes. Only the non-zero strings are written to the include. The output format has been designed to maintain readability. #define EFI_ST_DISK_IMG { 0x00010000, { \ {0x000001b8, "\x94\x37\x69\xfc\x00\x00\x00\x00"}, /* .7i..... */ \ {0x000001c0, "\x02\x00\x83\x02\x02\x00\x01\x00"}, /* ........ */ \ {0x000001c8, "\x00\x00\x7f\x00\x00\x00\x00\x00"}, /* ........ */ \ {0x000001f8, "\x00\x00\x00\x00\x00\x00\x55\xaa"}, /* ......U. */ \ ... {0x00006000, "\x48\x65\x6c\x6c\x6f\x20\x77\x6f"}, /* Hello wo */ \ {0x00006008, "\x72\x6c\x64\x21\x0a\x00\x00\x00"}, /* rld!.... */ \ {0, NULL} } } As the disk image needed for testing contains mostly zeroes a high compression ratio can be attained. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'tools')
-rw-r--r--tools/.gitignore1
-rw-r--r--tools/Makefile3
-rw-r--r--tools/file2include.c106
3 files changed, 110 insertions, 0 deletions
diff --git a/tools/.gitignore b/tools/.gitignore
index 6a487d2..c8cdaef 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -6,6 +6,7 @@
/easylogo/easylogo
/envcrc
/fdtgrep
+/file2include
/fit_check_sign
/fit_info
/gdb/gdbcont
diff --git a/tools/Makefile b/tools/Makefile
index 571f571..b7d7d41 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -57,6 +57,8 @@ mkenvimage-objs := mkenvimage.o os_support.o lib/crc32.o
hostprogs-y += dumpimage mkimage
hostprogs-$(CONFIG_FIT_SIGNATURE) += fit_info fit_check_sign
+hostprogs-$(CONFIG_CMD_BOOTEFI_SELFTEST) += file2include
+
FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := common/image-sig.o
# The following files are synced with upstream DTC.
@@ -118,6 +120,7 @@ dumpimage-objs := $(dumpimage-mkimage-objs) dumpimage.o
mkimage-objs := $(dumpimage-mkimage-objs) mkimage.o
fit_info-objs := $(dumpimage-mkimage-objs) fit_info.o
fit_check_sign-objs := $(dumpimage-mkimage-objs) fit_check_sign.o
+file2include-objs := file2include.o
ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
diff --git a/tools/file2include.c b/tools/file2include.c
new file mode 100644
index 0000000..9145f08
--- /dev/null
+++ b/tools/file2include.c
@@ -0,0 +1,106 @@
+/*
+ * Convert a file image to a C define
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * For testing EFI disk management we need an in memory image of
+ * a disk.
+ *
+ * The tool file2include converts a file to a C include. The file
+ * is separated into strings of 8 bytes. Only the non-zero strings
+ * are written to the include. The output format has been designed
+ * to maintain readability.
+ *
+ * As the disk image needed for testing contains mostly zeroes a high
+ * compression ratio can be attained.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <malloc.h>
+
+/* Size of the blocks written to the compressed file */
+#define BLOCK_SIZE 8
+
+int main(int argc, char *argv[])
+{
+ FILE *file;
+ int ret;
+ unsigned char *buf;
+ size_t count, i, j;
+
+ /* Provide usage help */
+ if (argc != 2) {
+ printf("Usage:\n%s FILENAME\n", argv[0]);
+ return EXIT_FAILURE;
+ }
+ /* Open file */
+ file = fopen(argv[1], "r");
+ if (!file) {
+ perror("fopen");
+ return EXIT_FAILURE;
+ }
+ /* Get file length */
+ ret = fseek(file, 0, SEEK_END);
+ if (ret < 0) {
+ perror("fseek");
+ return EXIT_FAILURE;
+ }
+ count = ftell(file);
+ if (!count) {
+ fprintf(stderr, "File %s has length 0\n", argv[1]);
+ return EXIT_FAILURE;
+ }
+ rewind(file);
+ /* Read file */
+ buf = malloc(count);
+ if (!buf) {
+ perror("calloc");
+ return EXIT_FAILURE;
+ }
+ count = fread(buf, 1, count, file);
+
+ /* Generate output */
+ printf("/*\n");
+ printf(" * Non-zero %u byte strings of a disk image\n", BLOCK_SIZE);
+ printf(" *\n");
+ printf(" * Generated with tools/file2include\n");
+ printf(" *\n");
+ printf(" * SPDX-License-Identifier: GPL-2.0+\n");
+ printf(" */\n\n");
+ printf("#define EFI_ST_DISK_IMG { 0x%08zx, { \\\n", count);
+
+ for (i = 0; i < count; i += BLOCK_SIZE) {
+ int c = 0;
+
+ for (j = i; j < i + BLOCK_SIZE && j < count; ++j) {
+ if (buf[j])
+ c = 1;
+ }
+ if (!c)
+ continue;
+ printf("\t{0x%08zx, \"", i);
+ for (j = i; j < i + BLOCK_SIZE && j < count; ++j)
+ printf("\\x%02x", buf[j]);
+ printf("\"}, /* ");
+ for (j = i; j < i + BLOCK_SIZE && j < count; ++j) {
+ if (buf[j] >= 0x20 && buf[j] <= 0x7e)
+ printf("%c", buf[j]);
+ else
+ printf(".");
+ }
+ printf(" */ \\\n");
+ }
+ printf("\t{0, NULL} } }\n");
+
+ /* Release resources */
+ free(buf);
+ ret = fclose(file);
+ if (ret) {
+ perror("fclose");
+ return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
+}