tools/mkimage: update to version 2018.03

This activates support for fit images and some other new mkimage
features. Some of the patches were applied upstream and could be
removed.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

15 files changed, 147 insertions, 1071 deletions

diff --git a/tools/mkimage/Makefile b/tools/mkimage/Makefile
index 00f85ae272..c7e1dfd672 100644
--- a/tools/mkimage/Makefile
+++ b/tools/mkimage/Makefile
@@ -7,14 +7,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mkimage
-PKG_VERSION:=2014.10
+PKG_VERSION:=2018.03
 
 PKG_SOURCE:=u-boot-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=\
 	http://mirror2.openwrt.org/sources \
 	ftp://ftp.denx.de/pub/u-boot
-PKG_HASH:=d3b132a7a9b3f3182b7aad71c2dfbd4fc15bea83e12c76134eb3ffefc07d1c71
-PKG_CAT:=bzcat
+PKG_HASH:=7e7477534409d5368eb1371ffde6820f0f79780a1a1f676161c48442cb303dfd
 
 HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/u-boot-$(PKG_VERSION)
 
@@ -22,17 +21,17 @@ include $(INCLUDE_DIR)/host-build.mk
 
 define Host/Prepare
 	$(Host/Prepare/Default)
-	rm -f \
-		$(HOST_BUILD_DIR)/include/errno.h \
-		$(HOST_BUILD_DIR)/include/malloc.h \
-		$(HOST_BUILD_DIR)/tools/.depend
-	touch $(HOST_BUILD_DIR)/include/config.mk
-	touch $(HOST_BUILD_DIR)/include/config.h
+	mkdir -p $(HOST_BUILD_DIR)/include/config
+	touch $(HOST_BUILD_DIR)/include/config/auto.conf
 endef
 
 define Host/Compile
-	$(MAKE) -C $(HOST_BUILD_DIR) defconfig   HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS)" HOST_LOADLIBES="$$$$(pkg-config --static --libs libcrypto)"
-	$(MAKE) -C $(HOST_BUILD_DIR) tools-only  HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS)" HOST_LOADLIBES="$$$$(pkg-config --static --libs libcrypto)"
+	$(MAKE) -C $(HOST_BUILD_DIR) \
+		HOSTCFLAGS="$(HOST_CFLAGS)" \
+		HOSTLDFLAGS="$(HOST_LDFLAGS)" \
+		no-dot-config-targets=tools-only \
+		CONFIG_FIT_SIGNATURE=y \
+		tools-only
 endef
 
 define Host/Install
diff --git a/tools/mkimage/patches/010-freebsd-ulong-fix.patch b/tools/mkimage/patches/010-freebsd-ulong-fix.patch
index 1101e72d15..7d891657f8 100644
--- a/tools/mkimage/patches/010-freebsd-ulong-fix.patch
+++ b/tools/mkimage/patches/010-freebsd-ulong-fix.patch
@@ -1,6 +1,6 @@
 --- a/include/image.h
 +++ b/include/image.h
-@@ -44,6 +44,10 @@ struct lmb;
+@@ -51,6 +51,10 @@ struct lmb;
  
  #endif /* USE_HOSTCC */
  
@@ -8,6 +8,6 @@
 +#define ulong unsigned long
 +#endif
 +
- #if defined(CONFIG_FIT)
+ #if IMAGE_ENABLE_FIT
  #include <hash.h>
- #include <libfdt.h>
+ #include <linux/libfdt.h>
diff --git a/tools/mkimage/patches/030-allow-to-use-different-magic.patch b/tools/mkimage/patches/030-allow-to-use-different-magic.patch
index dcab48894c..c6de9a0aaf 100644
--- a/tools/mkimage/patches/030-allow-to-use-different-magic.patch
+++ b/tools/mkimage/patches/030-allow-to-use-different-magic.patch
@@ -1,6 +1,6 @@
 --- a/tools/mkimage.c
 +++ b/tools/mkimage.c
-@@ -24,6 +24,7 @@ struct image_tool_params params = {
+@@ -21,6 +21,7 @@ static struct image_tool_params params =
  	.arch = IH_ARCH_PPC,
  	.type = IH_TYPE_KERNEL,
  	.comp = IH_COMP_GZIP,
@@ -8,52 +8,58 @@
  	.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
  	.imagename = "",
  	.imagename2 = "",
-@@ -168,6 +169,16 @@ main (int argc, char **argv)
- 					genimg_get_comp_id (*++argv)) < 0)
- 					usage ();
- 				goto NXTARG;
-+			case 'M':
-+				if (--argc <=0)
-+					usage ();
-+				params.magic = strtoul (*++argv, &ptr, 16);
-+				if (*ptr) {
-+					fprintf (stderr,
-+						"%s: invalid magic %s\n",
-+						params.cmdname, *argv);
-+				}
-+				goto NXTARG;
- 			case 'D':
- 				if (--argc <= 0)
- 					usage ();
-@@ -623,12 +634,13 @@ static void usage(void)
- 	fprintf (stderr, "Usage: %s -l image\n"
+@@ -77,11 +78,12 @@ static void usage(const char *msg)
  			 "          -l ==> list image header information\n",
  		params.cmdname);
--	fprintf (stderr, "       %s [-x] -A arch -O os -T type -C comp "
-+	fprintf (stderr, "       %s [-x] -A arch -O os -T type -C comp -M magic "
- 			 "-a addr -e ep -n name -d data_file[:data_file...] image\n"
- 			 "          -A ==> set architecture to 'arch'\n"
- 			 "          -O ==> set operating system to 'os'\n"
- 			 "          -T ==> set image type to 'type'\n"
- 			 "          -C ==> set compression type 'comp'\n"
-+			 "          -M ==> set image magic to 'magic'\n"
- 			 "          -a ==> set load address to 'addr' (hex)\n"
- 			 "          -e ==> set entry point to 'ep' (hex)\n"
- 			 "          -n ==> set image name to 'name'\n"
+ 	fprintf(stderr,
+-		"       %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
++		"       %s [-x] -A arch -O os -T type -C comp -M magic -a addr -e ep -n name -d data_file[:data_file...] image\n"
+ 		"          -A ==> set architecture to 'arch'\n"
+ 		"          -O ==> set operating system to 'os'\n"
+ 		"          -T ==> set image type to 'type'\n"
+ 		"          -C ==> set compression type 'comp'\n"
++		"          -M ==> set image magic to 'magic'\n"
+ 		"          -a ==> set load address to 'addr' (hex)\n"
+ 		"          -e ==> set entry point to 'ep' (hex)\n"
+ 		"          -n ==> set image name to 'name'\n"
+@@ -144,7 +146,7 @@ static void process_args(int argc, char
+ 	int opt;
+ 
+ 	while ((opt = getopt(argc, argv,
+-			     "a:A:b:c:C:d:D:e:Ef:Fk:i:K:ln:N:p:O:rR:qsT:vVx")) != -1) {
++			     "a:A:b:c:C:d:D:e:Ef:Fk:i:K:lM:n:N:p:O:rR:qsT:vVx")) != -1) {
+ 		switch (opt) {
+ 		case 'a':
+ 			params.addr = strtoull(optarg, &ptr, 16);
+@@ -222,6 +224,14 @@ static void process_args(int argc, char
+ 		case 'l':
+ 			params.lflag = 1;
+ 			break;
++		case 'M':
++			params.magic = strtoull(optarg, &ptr, 16);
++			if (*ptr) {
++				fprintf(stderr,	"%s: invalid magic %s\n",
++					params.cmdname, optarg);
++				exit(EXIT_FAILURE);
++			}
++			break;
+ 		case 'n':
+ 			params.imagename = optarg;
+ 			break;
 --- a/tools/default_image.c
 +++ b/tools/default_image.c
-@@ -98,7 +98,7 @@ static void image_set_header(void *ptr,
- 			sbuf->st_size - sizeof(image_header_t));
+@@ -106,7 +106,7 @@ static void image_set_header(void *ptr,
+ 		imagesize = sbuf->st_size - sizeof(image_header_t);
  
  	/* Build new header */
 -	image_set_magic(hdr, IH_MAGIC);
 +	image_set_magic(hdr, params->magic);
- 	image_set_time(hdr, sbuf->st_mtime);
- 	image_set_size(hdr, sbuf->st_size - sizeof(image_header_t));
+ 	image_set_time(hdr, time);
+ 	image_set_size(hdr, imagesize);
  	image_set_load(hdr, params->addr);
 --- a/tools/imagetool.h
 +++ b/tools/imagetool.h
-@@ -44,6 +44,7 @@ struct image_tool_params {
+@@ -54,6 +54,7 @@ struct image_tool_params {
  	int arch;
  	int type;
  	int comp;
diff --git a/tools/mkimage/patches/040-include_order.patch b/tools/mkimage/patches/040-include_order.patch
deleted file mode 100644
index 3b9ecc6bd3..0000000000
--- a/tools/mkimage/patches/040-include_order.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/tools/Makefile
-+++ b/tools/Makefile
-@@ -194,7 +194,7 @@ endif # !LOGO_BMP
- # Define _GNU_SOURCE to obtain the getline prototype from stdio.h
- #
- HOST_EXTRACFLAGS += -include $(srctree)/include/libfdt_env.h \
--		$(patsubst -I%,-idirafter%, $(filter -I%, $(UBOOTINCLUDE))) \
-+		-I$(srctree)/include \
- 		-I$(srctree)/lib/libfdt \
- 		-I$(srctree)/tools \
- 		-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
diff --git a/tools/mkimage/patches/050-image_h_portability.patch b/tools/mkimage/patches/050-image_h_portability.patch
index b3ad27388c..dabab39908 100644
--- a/tools/mkimage/patches/050-image_h_portability.patch
+++ b/tools/mkimage/patches/050-image_h_portability.patch
@@ -8,7 +8,7 @@
  
  /* Define this to avoid #ifdefs later on */
  struct lmb;
-@@ -258,13 +257,13 @@ struct lmb;
+@@ -308,13 +307,13 @@ enum {
   * all data in network byte order (aka natural aka bigendian).
   */
  typedef struct image_header {
diff --git a/tools/mkimage/patches/060-remove_kernel_includes.patch b/tools/mkimage/patches/060-remove_kernel_includes.patch
index fa533cd22d..e61d8cc496 100644
--- a/tools/mkimage/patches/060-remove_kernel_includes.patch
+++ b/tools/mkimage/patches/060-remove_kernel_includes.patch
@@ -1,6 +1,6 @@
 --- a/include/compiler.h
 +++ b/include/compiler.h
-@@ -58,6 +58,11 @@ typedef uint8_t __u8;
+@@ -66,6 +66,11 @@ typedef uint8_t __u8;
  typedef uint16_t __u16;
  typedef uint32_t __u32;
  typedef unsigned int uint;
diff --git a/tools/mkimage/patches/070-socfpgaimage_portability.patch b/tools/mkimage/patches/070-socfpgaimage_portability.patch
deleted file mode 100644
index e273c275d0..0000000000
--- a/tools/mkimage/patches/070-socfpgaimage_portability.patch
+++ /dev/null
@@ -1,52 +0,0 @@
---- a/tools/socfpgaimage.c
-+++ b/tools/socfpgaimage.c
-@@ -74,12 +74,12 @@ static uint16_t hdr_checksum(struct socf
- static void build_header(uint8_t *buf, uint8_t version, uint8_t flags,
- 			 uint16_t length_bytes)
- {
--	header.validation = htole32(VALIDATION_WORD);
-+	header.validation = cpu_to_le32(VALIDATION_WORD);
- 	header.version = version;
- 	header.flags = flags;
--	header.length_u32 = htole16(length_bytes/4);
-+	header.length_u32 = cpu_to_le16(length_bytes/4);
- 	header.zero = 0;
--	header.checksum = htole16(hdr_checksum(&header));
-+	header.checksum = cpu_to_le16(hdr_checksum(&header));
- 
- 	memcpy(buf, &header, sizeof(header));
- }
-@@ -92,12 +92,12 @@ static int verify_header(const uint8_t *
- {
- 	memcpy(&header, buf, sizeof(header));
- 
--	if (le32toh(header.validation) != VALIDATION_WORD)
-+	if (le32_to_cpu(header.validation) != VALIDATION_WORD)
- 		return -1;
--	if (le16toh(header.checksum) != hdr_checksum(&header))
-+	if (le16_to_cpu(header.checksum) != hdr_checksum(&header))
- 		return -1;
- 
--	return le16toh(header.length_u32) * 4;
-+	return le16_to_cpu(header.length_u32) * 4;
- }
- 
- /* Sign the buffer and return the signed buffer size */
-@@ -116,7 +116,7 @@ static int sign_buffer(uint8_t *buf,
- 	/* Calculate and apply the CRC */
- 	calc_crc = ~pbl_crc32(0, (char *)buf, len);
- 
--	*((uint32_t *)(buf + len)) = htole32(calc_crc);
-+	*((uint32_t *)(buf + len)) = cpu_to_le32(calc_crc);
- 
- 	if (!pad_64k)
- 		return len + 4;
-@@ -150,7 +150,7 @@ static int verify_buffer(const uint8_t *
- 
- 	calc_crc = ~pbl_crc32(0, (const char *)buf, len);
- 
--	buf_crc = le32toh(*((uint32_t *)(buf + len)));
-+	buf_crc = le32_to_cpu(*((uint32_t *)(buf + len)));
- 
- 	if (buf_crc != calc_crc) {
- 		fprintf(stderr, "CRC32 does not match (%08x != %08x)\n",
diff --git a/tools/mkimage/patches/080-remove_compiler_check.patch b/tools/mkimage/patches/080-remove_compiler_check.patch
index 3e71ad5b07..5e0792f25f 100644
--- a/tools/mkimage/patches/080-remove_compiler_check.patch
+++ b/tools/mkimage/patches/080-remove_compiler_check.patch
@@ -1,8 +1,8 @@
---- a/include/linux/compiler-gcc4.h
-+++ b/include/linux/compiler-gcc4.h
-@@ -2,13 +2,6 @@
- #error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
- #endif
+--- a/include/linux/compiler-gcc.h
++++ b/include/linux/compiler-gcc.h
+@@ -146,13 +146,6 @@
+ 
+ #if GCC_VERSION >= 40000
  
 -/* GCC 4.1.[01] miscompiles __weak */
 -#ifdef __KERNEL__
@@ -12,5 +12,5 @@
 -#endif
 -
  #define __used			__attribute__((__used__))
- #define __must_check 		__attribute__((warn_unused_result))
- #define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
+ #define __compiler_offsetof(a, b)					\
+ 	__builtin_offsetof(a, b)
diff --git a/tools/mkimage/patches/090-reproducible-SOURCE_DATE_EPOCH.patch b/tools/mkimage/patches/090-reproducible-SOURCE_DATE_EPOCH.patch
deleted file mode 100644
index c238fd62ed..0000000000
--- a/tools/mkimage/patches/090-reproducible-SOURCE_DATE_EPOCH.patch
+++ /dev/null
@@ -1,82 +0,0 @@
-From f3f431a712729a1af94d01bd1bfde17a252ff02c Mon Sep 17 00:00:00 2001
-From: Paul Kocialkowski <contact@paulk.fr>
-Date: Sun, 26 Jul 2015 18:48:15 +0200
-Subject: [PATCH] Reproducible U-Boot build support, using SOURCE_DATE_EPOCH
-
-In order to achieve reproducible builds in U-Boot, timestamps that are defined
-at build-time have to be somewhat eliminated. The SOURCE_DATE_EPOCH environment
-variable allows setting a fixed value for those timestamps.
-
-Simply by setting SOURCE_DATE_EPOCH to a fixed value, a number of targets can be
-built reproducibly. This is the case for e.g. sunxi devices.
-
-However, some other devices might need some more tweaks, especially regarding
-the image generation tools.
-
-Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
----
- Makefile              |  7 ++++---
- README                | 12 ++++++++++++
- tools/default_image.c | 21 ++++++++++++++++++++-
- 3 files changed, 36 insertions(+), 4 deletions(-)
-
---- a/README
-+++ b/README
-@@ -4928,6 +4928,18 @@ within that device.
- 	normal addressable memory via the LBC. CONFIG_SYS_LS_MC_FW_ADDR is the
- 	virtual address in NOR flash.
- 
-+Reproducible builds
-+-------------------
-+
-+In order to achieve reproducible builds, timestamps used in the U-Boot build
-+process have to be set to a fixed value.
-+
-+This is done using the SOURCE_DATE_EPOCH environment variable.
-+SOURCE_DATE_EPOCH is to be set on the build host's shell, not as a configuration
-+option for U-Boot or an environment variable in U-Boot.
-+
-+SOURCE_DATE_EPOCH should be set to a number of seconds since the epoch, in UTC.
-+
- Building the Software:
- ======================
- 
---- a/tools/default_image.c
-+++ b/tools/default_image.c
-@@ -89,6 +89,9 @@ static void image_set_header(void *ptr,
- 				struct image_tool_params *params)
- {
- 	uint32_t checksum;
-+	char *source_date_epoch;
-+	struct tm *time_universal;
-+	time_t time;
- 
- 	image_header_t * hdr = (image_header_t *)ptr;
- 
-@@ -97,9 +100,25 @@ static void image_set_header(void *ptr,
- 				sizeof(image_header_t)),
- 			sbuf->st_size - sizeof(image_header_t));
- 
-+	source_date_epoch = getenv("SOURCE_DATE_EPOCH");
-+	if (source_date_epoch != NULL) {
-+		time = (time_t) strtol(source_date_epoch, NULL, 10);
-+
-+		time_universal = gmtime(&time);
-+		if (time_universal == NULL) {
-+			fprintf(stderr, "%s: SOURCE_DATE_EPOCH is not valid\n",
-+				__func__);
-+			time = 0;
-+		} else {
-+			time = mktime(time_universal);
-+		}
-+	} else {
-+		time = sbuf->st_mtime;
-+	}
-+
- 	/* Build new header */
- 	image_set_magic(hdr, params->magic);
--	image_set_time(hdr, sbuf->st_mtime);
-+	image_set_time(hdr, time);
- 	image_set_size(hdr, sbuf->st_size - sizeof(image_header_t));
- 	image_set_load(hdr, params->addr);
- 	image_set_ep(hdr, params->ep);
diff --git a/tools/mkimage/patches/100-freebsd-compat.patch b/tools/mkimage/patches/100-freebsd-compat.patch
index e014af5708..1567285714 100644
--- a/tools/mkimage/patches/100-freebsd-compat.patch
+++ b/tools/mkimage/patches/100-freebsd-compat.patch
@@ -1,6 +1,6 @@
 --- a/Makefile
 +++ b/Makefile
-@@ -584,7 +584,10 @@ UBOOTINCLUDE    := \
+@@ -634,7 +634,10 @@ UBOOTINCLUDE    := \
  		-I$(srctree)/arch/$(ARCH)/include \
  		-include $(srctree)/include/linux/kconfig.h
  
diff --git a/tools/mkimage/patches/110-fix_musl_build.patch b/tools/mkimage/patches/110-fix_musl_build.patch
deleted file mode 100644
index 13f7ab0431..0000000000
--- a/tools/mkimage/patches/110-fix_musl_build.patch
+++ /dev/null
@@ -1,67 +0,0 @@
-From: Jörg Krause <joerg.krause@embedded.rocks>
-Date: Wed, 22 Apr 2015 19:36:22 +0000 (+0200)
-Subject: Fix musl build
-X-Git-Tag: v2015.07-rc2~281
-X-Git-Url: http://git.denx.de/?p=u-boot.git;a=commitdiff_plain;h=26e355d131a6b56ea78a156c1cee4f6ba0500b37;hp=1cdd9412002000aafcfb6f10cd02069adc66ba49
-
-Fix musl build
-
-This patch fixes cross-compiling U-Boot tools with the musl C library:
-  * including <sys/types.h> is needed for ulong
-  * defining _GNU_SOURCE is needed for loff_t
-
-Tested for target at91sam9261ek_dataflash_cs3.
-
-Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
-Cc: Tom Rini <trini@konsulko.com>
----
-
-diff --git a/include/image.h b/include/image.h
-index 3844be6..60b924a 100644
---- a/include/image.h
-+++ b/include/image.h
-@@ -23,6 +23,7 @@
- struct lmb;
- 
- #ifdef USE_HOSTCC
-+#include <sys/types.h>
- 
- /* new uImage format support enabled on host */
- #define CONFIG_FIT		1
-diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
-index 1173eea..daa02a7 100644
---- a/tools/env/fw_env.c
-+++ b/tools/env/fw_env.c
-@@ -8,6 +8,8 @@
-  * SPDX-License-Identifier:	GPL-2.0+
-  */
- 
-+#define _GNU_SOURCE
-+
- #include <errno.h>
- #include <env_flags.h>
- #include <fcntl.h>
-diff --git a/tools/imagetool.h b/tools/imagetool.h
-index 3e15b4e..b7874f4 100644
---- a/tools/imagetool.h
-+++ b/tools/imagetool.h
-@@ -16,6 +16,7 @@
- #include <stdlib.h>
- #include <string.h>
- #include <sys/stat.h>
-+#include <sys/types.h>
- #include <time.h>
- #include <unistd.h>
- #include <u-boot/sha1.h>
-diff --git a/tools/proftool.c b/tools/proftool.c
-index 3482951..9ce7a77 100644
---- a/tools/proftool.c
-+++ b/tools/proftool.c
-@@ -16,6 +16,7 @@
- #include <string.h>
- #include <unistd.h>
- #include <sys/param.h>
-+#include <sys/types.h>
- 
- #include <compiler.h>
- #include <trace.h>
diff --git a/tools/mkimage/patches/200-compiler-support.patch b/tools/mkimage/patches/200-compiler-support.patch
deleted file mode 100644
index ca9c5b5a30..0000000000
--- a/tools/mkimage/patches/200-compiler-support.patch
+++ /dev/null
@@ -1,702 +0,0 @@
-diff --git b/include/linux/compiler-gcc.h a/include/linux/compiler-gcc.h
-index e057bd2..22ab246 100644
---- b/include/linux/compiler-gcc.h
-+++ a/include/linux/compiler-gcc.h
-@@ -5,14 +5,28 @@
- /*
-  * Common definitions for all gcc versions go here.
-  */
--#define GCC_VERSION (__GNUC__ * 10000 \
--		   + __GNUC_MINOR__ * 100 \
--		   + __GNUC_PATCHLEVEL__)
--
-+#define GCC_VERSION (__GNUC__ * 10000		\
-+		     + __GNUC_MINOR__ * 100	\
-+		     + __GNUC_PATCHLEVEL__)
- 
- /* Optimization barrier */
-+
- /* The "volatile" is due to gcc bugs */
- #define barrier() __asm__ __volatile__("": : :"memory")
-+/*
-+ * This version is i.e. to prevent dead stores elimination on @ptr
-+ * where gcc and llvm may behave differently when otherwise using
-+ * normal barrier(): while gcc behavior gets along with a normal
-+ * barrier(), llvm needs an explicit input variable to be assumed
-+ * clobbered. The issue is as follows: while the inline asm might
-+ * access any memory it wants, the compiler could have fit all of
-+ * @ptr into memory registers instead, and since @ptr never escaped
-+ * from that, it proofed that the inline asm wasn't touching any of
-+ * it. This version works well with both compilers, i.e. we're telling
-+ * the compiler that the inline asm absolutely may see the contents
-+ * of @ptr. See also: https://llvm.org/bugs/show_bug.cgi?id=15495
-+ */
-+#define barrier_data(ptr) __asm__ __volatile__("": :"r"(ptr) :"memory")
- 
- /*
-  * This macro obfuscates arithmetic on a variable address so that gcc
-@@ -32,58 +46,63 @@
-  * the inline assembly constraint from =g to =r, in this particular
-  * case either is valid.
-  */
--#define RELOC_HIDE(ptr, off)					\
--  ({ unsigned long __ptr;					\
--    __asm__ ("" : "=r"(__ptr) : "0"(ptr));		\
--    (typeof(ptr)) (__ptr + (off)); })
-+#define RELOC_HIDE(ptr, off)						\
-+({									\
-+	unsigned long __ptr;						\
-+	__asm__ ("" : "=r"(__ptr) : "0"(ptr));				\
-+	(typeof(ptr)) (__ptr + (off));					\
-+})
- 
- /* Make the optimizer believe the variable can be manipulated arbitrarily. */
--#define OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "=r" (var) : "0" (var))
-+#define OPTIMIZER_HIDE_VAR(var)						\
-+	__asm__ ("" : "=r" (var) : "0" (var))
- 
- #ifdef __CHECKER__
--#define __must_be_array(arr) 0
-+#define __must_be_array(a)	0
- #else
- /* &a[0] degrades to a pointer: a different type from an array */
--#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
-+#define __must_be_array(a)	BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
- #endif
- 
- /*
-  * Force always-inline if the user requests it so via the .config,
-  * or if gcc is too old:
-  */
--#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
-+#if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) ||		\
-     !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
--# define inline		inline		__attribute__((always_inline)) notrace
--# define __inline__	__inline__	__attribute__((always_inline)) notrace
--# define __inline	__inline	__attribute__((always_inline)) notrace
-+#define inline		inline		__attribute__((always_inline)) notrace
-+#define __inline__	__inline__	__attribute__((always_inline)) notrace
-+#define __inline	__inline	__attribute__((always_inline)) notrace
- #else
- /* A lot of inline functions can cause havoc with function tracing */
--# define inline		inline		notrace
--# define __inline__	__inline__	notrace
--# define __inline	__inline	notrace
-+#define inline		inline		notrace
-+#define __inline__	__inline__	notrace
-+#define __inline	__inline	notrace
- #endif
- 
--#define __deprecated			__attribute__((deprecated))
--#ifndef __packed
--#define __packed			__attribute__((packed))
--#endif
--#ifndef __weak
--#define __weak				__attribute__((weak))
--#endif
-+#define __always_inline	inline __attribute__((always_inline))
-+#define  noinline	__attribute__((noinline))
-+
-+#define __deprecated	__attribute__((deprecated))
-+#define __packed	__attribute__((packed))
-+#define __weak		__attribute__((weak))
-+#define __alias(symbol)	__attribute__((alias(#symbol)))
- 
- /*
-- * it doesn't make sense on ARM (currently the only user of __naked) to trace
-- * naked functions because then mcount is called without stack and frame pointer
-- * being set up and there is no chance to restore the lr register to the value
-- * before mcount was called.
-+ * it doesn't make sense on ARM (currently the only user of __naked)
-+ * to trace naked functions because then mcount is called without
-+ * stack and frame pointer being set up and there is no chance to
-+ * restore the lr register to the value before mcount was called.
-+ *
-+ * The asm() bodies of naked functions often depend on standard calling
-+ * conventions, therefore they must be noinline and noclone.
-  *
-- * The asm() bodies of naked functions often depend on standard calling conventions,
-- * therefore they must be noinline and noclone.  GCC 4.[56] currently fail to enforce
-- * this, so we must do so ourselves.  See GCC PR44290.
-+ * GCC 4.[56] currently fail to enforce this, so we must do so ourselves.
-+ * See GCC PR44290.
-  */
--#define __naked				__attribute__((naked)) noinline __noclone notrace
-+#define __naked		__attribute__((naked)) noinline __noclone notrace
- 
--#define __noreturn			__attribute__((noreturn))
-+#define __noreturn	__attribute__((noreturn))
- 
- /*
-  * From the GCC manual:
-@@ -95,34 +114,170 @@
-  * would be.
-  * [...]
-  */
--#ifndef __pure
--#define __pure				__attribute__((pure))
-+#define __pure			__attribute__((pure))
-+#define __aligned(x)		__attribute__((aligned(x)))
-+#define __printf(a, b)		__attribute__((format(printf, a, b)))
-+#define __scanf(a, b)		__attribute__((format(scanf, a, b)))
-+#define __attribute_const__	__attribute__((__const__))
-+#define __maybe_unused		__attribute__((unused))
-+#define __always_unused		__attribute__((unused))
-+
-+/* gcc version specific checks */
-+
-+#if GCC_VERSION < 30200
-+# error Sorry, your compiler is too old - please upgrade it.
-+#endif
-+
-+#if GCC_VERSION < 30300
-+# define __used			__attribute__((__unused__))
-+#else
-+# define __used			__attribute__((__used__))
-+#endif
-+
-+#ifdef CONFIG_GCOV_KERNEL
-+# if GCC_VERSION < 30400
-+#   error "GCOV profiling support for gcc versions below 3.4 not included"
-+# endif /* __GNUC_MINOR__ */
-+#endif /* CONFIG_GCOV_KERNEL */
-+
-+#if GCC_VERSION >= 30400
-+#define __must_check		__attribute__((warn_unused_result))
-+#endif
-+
-+#if GCC_VERSION >= 40000
-+
-+/* GCC 4.1.[01] miscompiles __weak */
-+#ifdef __KERNEL__
-+# if GCC_VERSION >= 40100 &&  GCC_VERSION <= 40101
-+#  error Your version of gcc miscompiles the __weak directive
-+# endif
-+#endif
-+
-+#define __used			__attribute__((__used__))
-+#define __compiler_offsetof(a, b)					\
-+	__builtin_offsetof(a, b)
-+
-+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
-+# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
-+#endif
-+
-+#if GCC_VERSION >= 40300
-+/* Mark functions as cold. gcc will assume any path leading to a call
-+ * to them will be unlikely.  This means a lot of manual unlikely()s
-+ * are unnecessary now for any paths leading to the usual suspects
-+ * like BUG(), printk(), panic() etc. [but let's keep them for now for
-+ * older compilers]
-+ *
-+ * Early snapshots of gcc 4.3 don't support this and we can't detect this
-+ * in the preprocessor, but we can live with this because they're unreleased.
-+ * Maketime probing would be overkill here.
-+ *
-+ * gcc also has a __attribute__((__hot__)) to move hot functions into
-+ * a special section, but I don't see any sense in this right now in
-+ * the kernel context
-+ */
-+#define __cold			__attribute__((__cold__))
-+
-+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
-+
-+#ifndef __CHECKER__
-+# define __compiletime_warning(message) __attribute__((warning(message)))
-+# define __compiletime_error(message) __attribute__((error(message)))
-+#endif /* __CHECKER__ */
-+#endif /* GCC_VERSION >= 40300 */
-+
-+#if GCC_VERSION >= 40500
-+/*
-+ * Mark a position in code as unreachable.  This can be used to
-+ * suppress control flow warnings after asm blocks that transfer
-+ * control elsewhere.
-+ *
-+ * Early snapshots of gcc 4.5 don't support this and we can't detect
-+ * this in the preprocessor, but we can live with this because they're
-+ * unreleased.  Really, we need to have autoconf for the kernel.
-+ */
-+#define unreachable() __builtin_unreachable()
-+
-+/* Mark a function definition as prohibited from being cloned. */
-+#define __noclone	__attribute__((__noclone__))
-+
-+#endif /* GCC_VERSION >= 40500 */
-+
-+#if GCC_VERSION >= 40600
-+/*
-+ * When used with Link Time Optimization, gcc can optimize away C functions or
-+ * variables which are referenced only from assembly code.  __visible tells the
-+ * optimizer that something else uses this function or variable, thus preventing
-+ * this.
-+ */
-+#define __visible	__attribute__((externally_visible))
- #endif
--#ifndef __aligned
--#define __aligned(x)			__attribute__((aligned(x)))
-+
-+
-+#if GCC_VERSION >= 40900 && !defined(__CHECKER__)
-+/*
-+ * __assume_aligned(n, k): Tell the optimizer that the returned
-+ * pointer can be assumed to be k modulo n. The second argument is
-+ * optional (default 0), so we use a variadic macro to make the
-+ * shorthand.
-+ *
-+ * Beware: Do not apply this to functions which may return
-+ * ERR_PTRs. Also, it is probably unwise to apply it to functions
-+ * returning extra information in the low bits (but in that case the
-+ * compiler should see some alignment anyway, when the return value is
-+ * massaged by 'flags = ptr & 3; ptr &= ~3;').
-+ */
-+#define __assume_aligned(a, ...) __attribute__((__assume_aligned__(a, ## __VA_ARGS__)))
- #endif
--#define __printf(a, b)			__attribute__((format(printf, a, b)))
--#define __scanf(a, b)			__attribute__((format(scanf, a, b)))
--#define  noinline			__attribute__((noinline))
--#define __attribute_const__		__attribute__((__const__))
--#define __maybe_unused			__attribute__((unused))
--#define __always_unused			__attribute__((unused))
- 
--#define __gcc_header(x) #x
--#define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
--#define gcc_header(x) _gcc_header(x)
--#include gcc_header(__GNUC__)
-+/*
-+ * GCC 'asm goto' miscompiles certain code sequences:
-+ *
-+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
-+ *
-+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
-+ *
-+ * (asm goto is automatically volatile - the naming reflects this.)
-+ */
-+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
-+
-+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
-+#if GCC_VERSION >= 40400
-+#define __HAVE_BUILTIN_BSWAP32__
-+#define __HAVE_BUILTIN_BSWAP64__
-+#endif
-+#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
-+#define __HAVE_BUILTIN_BSWAP16__
-+#endif
-+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
-+
-+#if GCC_VERSION >= 50000
-+#define KASAN_ABI_VERSION 4
-+#elif GCC_VERSION >= 40902
-+#define KASAN_ABI_VERSION 3
-+#endif
-+
-+#if GCC_VERSION >= 40902
-+/*
-+ * Tell the compiler that address safety instrumentation (KASAN)
-+ * should not be applied to that function.
-+ * Conflicts with inlining: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
-+ */
-+#define __no_sanitize_address __attribute__((no_sanitize_address))
-+#endif
-+
-+#endif	/* gcc version >= 40000 specific checks */
- 
- #if !defined(__noclone)
- #define __noclone	/* not needed */
- #endif
- 
-+#if !defined(__no_sanitize_address)
-+#define __no_sanitize_address
-+#endif
-+
- /*
-  * A trick to suppress uninitialized variable warning without generating any
-  * code
-  */
- #define uninitialized_var(x) x = x
--
--#ifndef __always_inline
--#define __always_inline		inline __attribute__((always_inline))
--#endif
-diff --git b/include/linux/compiler-gcc3.h a/include/linux/compiler-gcc3.h
-deleted file mode 100644
-index 7d89feb..0000000
---- b/include/linux/compiler-gcc3.h
-+++ /dev/null
-@@ -1,23 +0,0 @@
--#ifndef __LINUX_COMPILER_H
--#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
--#endif
--
--#if GCC_VERSION < 30200
--# error Sorry, your compiler is too old - please upgrade it.
--#endif
--
--#if GCC_VERSION >= 30300
--# define __used			__attribute__((__used__))
--#else
--# define __used			__attribute__((__unused__))
--#endif
--
--#if GCC_VERSION >= 30400
--#define __must_check		__attribute__((warn_unused_result))
--#endif
--
--#ifdef CONFIG_GCOV_KERNEL
--# if GCC_VERSION < 30400
--#   error "GCOV profiling support for gcc versions below 3.4 not included"
--# endif /* __GNUC_MINOR__ */
--#endif /* CONFIG_GCOV_KERNEL */
-diff --git b/include/linux/compiler-gcc4.h a/include/linux/compiler-gcc4.h
-deleted file mode 100644
-index c982a09..0000000
---- b/include/linux/compiler-gcc4.h
-+++ /dev/null
-@@ -1,81 +0,0 @@
--#ifndef __LINUX_COMPILER_H
--#error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
--#endif
--
--#define __used			__attribute__((__used__))
--#define __must_check 		__attribute__((warn_unused_result))
--#define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
--
--#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
--# define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
--#endif
--
--#if GCC_VERSION >= 40300
--/* Mark functions as cold. gcc will assume any path leading to a call
--   to them will be unlikely.  This means a lot of manual unlikely()s
--   are unnecessary now for any paths leading to the usual suspects
--   like BUG(), printk(), panic() etc. [but let's keep them for now for
--   older compilers]
--
--   Early snapshots of gcc 4.3 don't support this and we can't detect this
--   in the preprocessor, but we can live with this because they're unreleased.
--   Maketime probing would be overkill here.
--
--   gcc also has a __attribute__((__hot__)) to move hot functions into
--   a special section, but I don't see any sense in this right now in
--   the kernel context */
--#define __cold			__attribute__((__cold__))
--
--#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
--
--#ifndef __CHECKER__
--# define __compiletime_warning(message) __attribute__((warning(message)))
--# define __compiletime_error(message) __attribute__((error(message)))
--#endif /* __CHECKER__ */
--#endif /* GCC_VERSION >= 40300 */
--
--#if GCC_VERSION >= 40500
--/*
-- * Mark a position in code as unreachable.  This can be used to
-- * suppress control flow warnings after asm blocks that transfer
-- * control elsewhere.
-- *
-- * Early snapshots of gcc 4.5 don't support this and we can't detect
-- * this in the preprocessor, but we can live with this because they're
-- * unreleased.  Really, we need to have autoconf for the kernel.
-- */
--#define unreachable() __builtin_unreachable()
--
--/* Mark a function definition as prohibited from being cloned. */
--#define __noclone	__attribute__((__noclone__))
--
--#endif /* GCC_VERSION >= 40500 */
--
--#if GCC_VERSION >= 40600
--/*
-- * Tell the optimizer that something else uses this function or variable.
-- */
--#define __visible __attribute__((externally_visible))
--#endif
--
--/*
-- * GCC 'asm goto' miscompiles certain code sequences:
-- *
-- *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
-- *
-- * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
-- * Fixed in GCC 4.8.2 and later versions.
-- *
-- * (asm goto is automatically volatile - the naming reflects this.)
-- */
--#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
--
--#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
--#if GCC_VERSION >= 40400
--#define __HAVE_BUILTIN_BSWAP32__
--#define __HAVE_BUILTIN_BSWAP64__
--#endif
--#if GCC_VERSION >= 40800 || (defined(__powerpc__) && GCC_VERSION >= 40600)
--#define __HAVE_BUILTIN_BSWAP16__
--#endif
--#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
-diff --git b/include/linux/compiler-intel.h a/include/linux/compiler-intel.h
-index ba147a1..d4c7113 100644
---- b/include/linux/compiler-intel.h
-+++ a/include/linux/compiler-intel.h
-@@ -13,9 +13,14 @@
- /* Intel ECC compiler doesn't support gcc specific asm stmts.
-  * It uses intrinsics to do the equivalent things.
-  */
-+#undef barrier
-+#undef barrier_data
- #undef RELOC_HIDE
- #undef OPTIMIZER_HIDE_VAR
- 
-+#define barrier() __memory_barrier()
-+#define barrier_data(ptr) barrier()
-+
- #define RELOC_HIDE(ptr, off)					\
-   ({ unsigned long __ptr;					\
-      __ptr = (unsigned long) (ptr);				\
-diff --git b/include/linux/compiler.h a/include/linux/compiler.h
-index d5ad7b1..020ad16 100644
---- b/include/linux/compiler.h
-+++ a/include/linux/compiler.h
-@@ -17,6 +17,7 @@
- # define __release(x)	__context__(x,-1)
- # define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
- # define __percpu	__attribute__((noderef, address_space(3)))
-+# define __pmem		__attribute__((noderef, address_space(5)))
- #ifdef CONFIG_SPARSE_RCU_POINTER
- # define __rcu		__attribute__((noderef, address_space(4)))
- #else
-@@ -42,6 +43,7 @@ extern void __chk_io_ptr(const volatile void __iomem *);
- # define __cond_lock(x,c) (c)
- # define __percpu
- # define __rcu
-+# define __pmem
- #endif
- 
- /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
-@@ -54,7 +56,11 @@ extern void __chk_io_ptr(const volatile void __iomem *);
- #include <linux/compiler-gcc.h>
- #endif
- 
-+#if defined(CC_USING_HOTPATCH) && !defined(__CHECKER__)
-+#define notrace __attribute__((hotpatch(0,0)))
-+#else
- #define notrace __attribute__((no_instrument_function))
-+#endif
- 
- /* Intel compiler defines __GNUC__. So we will overwrite implementations
-  * coming from above header files here
-@@ -138,7 +144,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
-  */
- #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
- #define __trace_if(cond) \
--	if (__builtin_constant_p((cond)) ? !!(cond) :			\
-+	if (__builtin_constant_p(!!(cond)) ? !!(cond) :			\
- 	({								\
- 		int ______r;						\
- 		static struct ftrace_branch_data			\
-@@ -165,6 +171,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
- # define barrier() __memory_barrier()
- #endif
- 
-+#ifndef barrier_data
-+# define barrier_data(ptr) barrier()
-+#endif
-+
- /* Unreachable code */
- #ifndef unreachable
- # define unreachable() do { } while (1)
-@@ -186,6 +196,126 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
- # define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __LINE__)
- #endif
- 
-+#include <linux/types.h>
-+
-+#define __READ_ONCE_SIZE						\
-+({									\
-+	switch (size) {							\
-+	case 1: *(__u8 *)res = *(volatile __u8 *)p; break;		\
-+	case 2: *(__u16 *)res = *(volatile __u16 *)p; break;		\
-+	case 4: *(__u32 *)res = *(volatile __u32 *)p; break;		\
-+	case 8: *(__u64 *)res = *(volatile __u64 *)p; break;		\
-+	default:							\
-+		barrier();						\
-+		__builtin_memcpy((void *)res, (const void *)p, size);	\
-+		barrier();						\
-+	}								\
-+})
-+
-+static __always_inline
-+void __read_once_size(const volatile void *p, void *res, int size)
-+{
-+	__READ_ONCE_SIZE;
-+}
-+
-+#ifdef CONFIG_KASAN
-+/*
-+ * This function is not 'inline' because __no_sanitize_address confilcts
-+ * with inlining. Attempt to inline it may cause a build failure.
-+ * 	https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
-+ * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
-+ */
-+static __no_sanitize_address __maybe_unused
-+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
-+{
-+	__READ_ONCE_SIZE;
-+}
-+#else
-+static __always_inline
-+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
-+{
-+	__READ_ONCE_SIZE;
-+}
-+#endif
-+
-+static __always_inline void __write_once_size(volatile void *p, void *res, int size)
-+{
-+	switch (size) {
-+	case 1: *(volatile __u8 *)p = *(__u8 *)res; break;
-+	case 2: *(volatile __u16 *)p = *(__u16 *)res; break;
-+	case 4: *(volatile __u32 *)p = *(__u32 *)res; break;
-+	case 8: *(volatile __u64 *)p = *(__u64 *)res; break;
-+	default:
-+		barrier();
-+		__builtin_memcpy((void *)p, (const void *)res, size);
-+		barrier();
-+	}
-+}
-+
-+/*
-+ * Prevent the compiler from merging or refetching reads or writes. The
-+ * compiler is also forbidden from reordering successive instances of
-+ * READ_ONCE, WRITE_ONCE and ACCESS_ONCE (see below), but only when the
-+ * compiler is aware of some particular ordering.  One way to make the
-+ * compiler aware of ordering is to put the two invocations of READ_ONCE,
-+ * WRITE_ONCE or ACCESS_ONCE() in different C statements.
-+ *
-+ * In contrast to ACCESS_ONCE these two macros will also work on aggregate
-+ * data types like structs or unions. If the size of the accessed data
-+ * type exceeds the word size of the machine (e.g., 32 bits or 64 bits)
-+ * READ_ONCE() and WRITE_ONCE()  will fall back to memcpy and print a
-+ * compile-time warning.
-+ *
-+ * Their two major use cases are: (1) Mediating communication between
-+ * process-level code and irq/NMI handlers, all running on the same CPU,
-+ * and (2) Ensuring that the compiler does not  fold, spindle, or otherwise
-+ * mutilate accesses that either do not require ordering or that interact
-+ * with an explicit memory barrier or atomic instruction that provides the
-+ * required ordering.
-+ */
-+
-+#define __READ_ONCE(x, check)						\
-+({									\
-+	union { typeof(x) __val; char __c[1]; } __u;			\
-+	if (check)							\
-+		__read_once_size(&(x), __u.__c, sizeof(x));		\
-+	else								\
-+		__read_once_size_nocheck(&(x), __u.__c, sizeof(x));	\
-+	__u.__val;							\
-+})
-+#define READ_ONCE(x) __READ_ONCE(x, 1)
-+
-+/*
-+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
-+ * to hide memory access from KASAN.
-+ */
-+#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
-+
-+#define WRITE_ONCE(x, val) \
-+({							\
-+	union { typeof(x) __val; char __c[1]; } __u =	\
-+		{ .__val = (__force typeof(x)) (val) }; \
-+	__write_once_size(&(x), __u.__c, sizeof(x));	\
-+	__u.__val;					\
-+})
-+
-+/**
-+ * smp_cond_acquire() - Spin wait for cond with ACQUIRE ordering
-+ * @cond: boolean expression to wait for
-+ *
-+ * Equivalent to using smp_load_acquire() on the condition variable but employs
-+ * the control dependency of the wait to reduce the barrier on many platforms.
-+ *
-+ * The control dependency provides a LOAD->STORE order, the additional RMB
-+ * provides LOAD->LOAD order, together they provide LOAD->{LOAD,STORE} order,
-+ * aka. ACQUIRE.
-+ */
-+#define smp_cond_acquire(cond)	do {		\
-+	while (!(cond))				\
-+		cpu_relax();			\
-+	smp_rmb(); /* ctrl + rmb := acquire */	\
-+} while (0)
-+
- #endif /* __KERNEL__ */
- 
- #endif /* __ASSEMBLY__ */
-@@ -304,6 +434,14 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
- #define __visible
- #endif
- 
-+/*
-+ * Assume alignment of return value.
-+ */
-+#ifndef __assume_aligned
-+#define __assume_aligned(a, ...)
-+#endif
-+
-+
- /* Are two types/vars the same type (ignoring qualifiers)? */
- #ifndef __same_type
- # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
-@@ -311,7 +449,7 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
- 
- /* Is this type a native word size -- useful for atomic operations */
- #ifndef __native_word
--# define __native_word(t) (sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
-+# define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
- #endif
- 
- /* Compile time object size, -1 for unknown */
-@@ -373,12 +511,38 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
-  * to make the compiler aware of ordering is to put the two invocations of
-  * ACCESS_ONCE() in different C statements.
-  *
-- * This macro does absolutely -nothing- to prevent the CPU from reordering,
-- * merging, or refetching absolutely anything at any time.  Its main intended
-- * use is to mediate communication between process-level code and irq/NMI
-- * handlers, all running on the same CPU.
-+ * ACCESS_ONCE will only work on scalar types. For union types, ACCESS_ONCE
-+ * on a union member will work as long as the size of the member matches the
-+ * size of the union and the size is smaller than word size.
-+ *
-+ * The major use cases of ACCESS_ONCE used to be (1) Mediating communication
-+ * between process-level code and irq/NMI handlers, all running on the same CPU,
-+ * and (2) Ensuring that the compiler does not  fold, spindle, or otherwise
-+ * mutilate accesses that either do not require ordering or that interact
-+ * with an explicit memory barrier or atomic instruction that provides the
-+ * required ordering.
-+ *
-+ * If possible use READ_ONCE()/WRITE_ONCE() instead.
-+ */
-+#define __ACCESS_ONCE(x) ({ \
-+	 __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \
-+	(volatile typeof(x) *)&(x); })
-+#define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
-+
-+/**
-+ * lockless_dereference() - safely load a pointer for later dereference
-+ * @p: The pointer to load
-+ *
-+ * Similar to rcu_dereference(), but for situations where the pointed-to
-+ * object's lifetime is managed by something other than RCU.  That
-+ * "something other" might be reference counting or simple immortality.
-  */
--#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
-+#define lockless_dereference(p) \
-+({ \
-+	typeof(p) _________p1 = READ_ONCE(p); \
-+	smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
-+	(_________p1); \
-+})
- 
- /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
- #ifdef CONFIG_KPROBES
diff --git a/tools/mkimage/patches/200-rsa-sign-add-support-for-libressl.patch b/tools/mkimage/patches/200-rsa-sign-add-support-for-libressl.patch
new file mode 100644
index 0000000000..29058e22b7
--- /dev/null
+++ b/tools/mkimage/patches/200-rsa-sign-add-support-for-libressl.patch
@@ -0,0 +1,68 @@
+From 69176c8602e29f4bd30457240374800d88dc39ed Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 14 Apr 2018 22:39:34 +0200
+Subject: [PATCH] rsa-sign: add support for libressl
+
+---
+ lib/rsa/rsa-sign.c | 15 +++++++++------
+ 1 file changed, 9 insertions(+), 6 deletions(-)
+
+--- a/lib/rsa/rsa-sign.c
++++ b/lib/rsa/rsa-sign.c
+@@ -21,7 +21,8 @@
+ #define HAVE_ERR_REMOVE_THREAD_STATE
+ #endif
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
+ static void RSA_get0_key(const RSA *r,
+                  const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
+ {
+@@ -300,7 +301,8 @@ static int rsa_init(void)
+ {
+ 	int ret;
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
+ 	ret = SSL_library_init();
+ #else
+ 	ret = OPENSSL_init_ssl(0, NULL);
+@@ -309,7 +311,7 @@ static int rsa_init(void)
+ 		fprintf(stderr, "Failure to init SSL library\n");
+ 		return -1;
+ 	}
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+ 	SSL_load_error_strings();
+ 
+ 	OpenSSL_add_all_algorithms();
+@@ -355,7 +357,7 @@ err_set_rsa:
+ err_engine_init:
+ 	ENGINE_free(e);
+ err_engine_by_id:
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L ||  defined(LIBRESSL_VERSION_NUMBER)
+ 	ENGINE_cleanup();
+ #endif
+ 	return ret;
+@@ -363,7 +365,7 @@ err_engine_by_id:
+ 
+ static void rsa_remove(void)
+ {
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+ 	CRYPTO_cleanup_all_ex_data();
+ 	ERR_free_strings();
+ #ifdef HAVE_ERR_REMOVE_THREAD_STATE
+@@ -433,7 +435,8 @@ static int rsa_sign_with_key(RSA *rsa, s
+ 		ret = rsa_err("Could not obtain signature");
+ 		goto err_sign;
+ 	}
+-	#if OPENSSL_VERSION_NUMBER < 0x10100000L
++	#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++	    defined(LIBRESSL_VERSION_NUMBER)
+ 		EVP_MD_CTX_cleanup(context);
+ 	#else
+ 		EVP_MD_CTX_reset(context);
diff --git a/tools/mkimage/patches/210-link-libcrypto-static.patch b/tools/mkimage/patches/210-link-libcrypto-static.patch
new file mode 100644
index 0000000000..66412ce43b
--- /dev/null
+++ b/tools/mkimage/patches/210-link-libcrypto-static.patch
@@ -0,0 +1,14 @@
+OpenWrt links the libressl statically against mkimage, make sure all the 
+needed dependencies are added too.
+
+--- a/tools/Makefile
++++ b/tools/Makefile
+@@ -145,7 +145,7 @@ endif
+ # MXSImage needs LibSSL
+ ifneq ($(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_ARMADA_38X)$(CONFIG_ARMADA_39X)$(CONFIG_FIT_SIGNATURE),)
+ HOSTLOADLIBES_mkimage += \
+-	$(shell pkg-config --libs libssl libcrypto 2> /dev/null || echo "-lssl -lcrypto")
++	$(shell pkg-config --libs --static libssl libcrypto 2> /dev/null || echo "-lssl -lcrypto")
+ 
+ # OS X deprecate openssl in favour of CommonCrypto, supress deprecation
+ # warnings on those systems
diff --git a/tools/mkimage/patches/210-openssl-1.1.x-compat.patch b/tools/mkimage/patches/210-openssl-1.1.x-compat.patch
deleted file mode 100644
index b1bc08856e..0000000000
--- a/tools/mkimage/patches/210-openssl-1.1.x-compat.patch
+++ /dev/null
@@ -1,97 +0,0 @@
---- a/lib/rsa/rsa-sign.c
-+++ b/lib/rsa/rsa-sign.c
-@@ -15,10 +15,25 @@
- #include <openssl/ssl.h>
- #include <openssl/evp.h>
- 
--#if OPENSSL_VERSION_NUMBER >= 0x10000000L
-+#if OPENSSL_VERSION_NUMBER < 0x10000000L
-+#define HAVE_ERR_REMOVE_STATE
-+#elif OPENSSL_VERSION_NUMBER < 0x10100000L
- #define HAVE_ERR_REMOVE_THREAD_STATE
- #endif
- 
-+#if (OPENSSL_VERSION_NUMBER < 0x10100005L) || defined(LIBRESSL_VERSION_NUMBER)
-+static void RSA_get0_key(const RSA *r,
-+                         const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
-+{
-+   if (n != NULL)
-+       *n = r->n;
-+   if (e != NULL)
-+       *e = r->e;
-+   if (d != NULL)
-+       *d = r->d;
-+}
-+#endif
-+
- static int rsa_err(const char *msg)
- {
- 	unsigned long sslErr = ERR_get_error();
-@@ -154,7 +169,8 @@ static void rsa_remove(void)
- 	ERR_free_strings();
- #ifdef HAVE_ERR_REMOVE_THREAD_STATE
- 	ERR_remove_thread_state(NULL);
--#else
-+#endif
-+#ifdef HAVE_ERR_REMOVE_STATE
- 	ERR_remove_state(0);
- #endif
- 	EVP_cleanup();
-@@ -210,7 +226,6 @@ static int rsa_sign_with_key(RSA *rsa, s
- 		ret = rsa_err("Could not obtain signature");
- 		goto err_sign;
- 	}
--	EVP_MD_CTX_cleanup(context);
- 	EVP_MD_CTX_destroy(context);
- 	EVP_PKEY_free(key);
- 
-@@ -270,23 +285,26 @@ static int rsa_get_exponent(RSA *key, ui
- 	BIGNUM *bn_te;
- 	uint64_t te;
- 
-+	const BIGNUM *bn_e;
-+	RSA_get0_key(key, NULL, &bn_e, NULL);
-+
- 	ret = -EINVAL;
- 	bn_te = NULL;
- 
- 	if (!e)
- 		goto cleanup;
- 
--	if (BN_num_bits(key->e) > 64)
-+	if (BN_num_bits(bn_e) > 64)
- 		goto cleanup;
- 
--	*e = BN_get_word(key->e);
-+	*e = BN_get_word(bn_e);
- 
--	if (BN_num_bits(key->e) < 33) {
-+	if (BN_num_bits(bn_e) < 33) {
- 		ret = 0;
- 		goto cleanup;
- 	}
- 
--	bn_te = BN_dup(key->e);
-+	bn_te = BN_dup(bn_e);
- 	if (!bn_te)
- 		goto cleanup;
- 
-@@ -319,6 +337,9 @@ int rsa_get_params(RSA *key, uint64_t *e
- 	BN_CTX *bn_ctx = BN_CTX_new();
- 	int ret = 0;
- 
-+	const BIGNUM *bn_n;
-+	RSA_get0_key(key, &bn_n, NULL, NULL);
-+
- 	/* Initialize BIGNUMs */
- 	big1 = BN_new();
- 	big2 = BN_new();
-@@ -337,7 +358,7 @@ int rsa_get_params(RSA *key, uint64_t *e
- 	if (0 != rsa_get_exponent(key, exponent))
- 		ret = -1;
- 
--	if (!BN_copy(n, key->n) || !BN_set_word(big1, 1L) ||
-+	if (!BN_copy(n, bn_n) || !BN_set_word(big1, 1L) ||
- 	    !BN_set_word(big2, 2L) || !BN_set_word(big32, 32L))
- 		ret = -1;
-