[Buildroot] [PATCH v6 0/3] Adds support for TrustedFirmware-M

[Buildroot] [PATCH v6 0/3] Adds support for TrustedFirmware-M

[Kory Maincent via buildroot]

This series adds support for TrustedFirmware-M (TF-M).
https://trustedfirmware-m.readthedocs.io
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git

Trusted Firmware-M implements the Secure Processing Environment (SPE)
for Armv8-M, Armv8.1-M architectures (e.g. the Cortex-M33, Cortex-M23,
Cortex-M55, Cortex-M85 processors) or dual-core platforms.

Patches 1-2: Address host Python package dependencies.
Patch 3: Add support for TF-M.

Changes in v5:
- Remove python-cbor2 host support dependency which is already merged
  mainline.
- Use EXTRA_DOWNLOAD instead of subpackages for 3rd parties.
- Remove TF-M tests 3rd parties.
- Made few Kconfig, and cmake changes.

Changes in v4:
- Fix a recursive dependency loop issue.

Changes in v3:
- Add select BR2_HOST_CMAKE_AT_LEAST_3_21 to avoid cmake configure error
  due to old cmake version.
- Fix a Kconfig warning.

Changes in v2:
- Add TF-M to DEVELOPERS file
- Fix few nit.

Kory Maincent (3):
  package/python-intelhex: Add support for host package
  package/python-click: Add support for host package
  boot: Add support for TrustedFirmware-M package

 DEVELOPERS                                 |   1 +
 boot/Config.in                             |   1 +
 boot/tf-m/Config.in                        |  95 ++++++++++++++++
 boot/tf-m/tf-m.hash                        |  11 ++
 boot/tf-m/tf-m.mk                          | 126 +++++++++++++++++++++
 package/python-click/python-click.mk       |   1 +
 package/python-intelhex/python-intelhex.mk |   1 +
 utils/genrandconfig                        |   3 +
 8 files changed, 239 insertions(+)
 create mode 100644 boot/tf-m/Config.in
 create mode 100644 boot/tf-m/tf-m.hash
 create mode 100644 boot/tf-m/tf-m.mk

-- 
2.25.1

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[Buildroot] [PATCH v6 1/3] package/python-intelhex: Add support for host package

[Kory Maincent via buildroot]

Add support for the host package to enable future support for
TrustedFirmware-M, which depends on it.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
 package/python-intelhex/python-intelhex.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/python-intelhex/python-intelhex.mk b/package/python-intelhex/python-intelhex.mk
index cc8b973f0f..56f758e643 100644
--- a/package/python-intelhex/python-intelhex.mk
+++ b/package/python-intelhex/python-intelhex.mk
@@ -12,3 +12,4 @@ PYTHON_INTELHEX_LICENSE = BSD-3-Clause
 PYTHON_INTELHEX_LICENSE_FILES = LICENSE.txt
 
 $(eval $(python-package))
+$(eval $(host-python-package))
-- 
2.25.1

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[Buildroot] [PATCH v6 2/3] package/python-click: Add support for host package

[Kory Maincent via buildroot]

Add support for the host package to enable future support for
TrustedFirmware-M, which depends on it.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
 package/python-click/python-click.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/python-click/python-click.mk b/package/python-click/python-click.mk
index 0e29ff034e..3223ab39ce 100644
--- a/package/python-click/python-click.mk
+++ b/package/python-click/python-click.mk
@@ -12,3 +12,4 @@ PYTHON_CLICK_LICENSE_FILES = LICENSE.rst
 PYTHON_CLICK_SETUP_TYPE = setuptools
 
 $(eval $(python-package))
+$(eval $(host-python-package))
-- 
2.25.1

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[Buildroot] [PATCH v6 3/3] boot: Add support for TrustedFirmware-M package

[Kory Maincent via buildroot]

Add support for TrustedFirmware-M:
https://trustedfirmware-m.readthedocs.io
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git

Trusted Firmware-M (TF-M) implements the Secure Processing Environment
(SPE) for Armv8-M, Armv8.1-M architectures (e.g. the Cortex-M33,
Cortex-M23, Cortex-M55, Cortex-M85 processors) or dual-core platforms.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---

Changes in v5:
- Use EXTRA_DOWNLOAD instead of subpackages for 3rd parties.
- Remove TF-M tests 3rd parties.
- Remove 3rd parties submenu in Kconfig.
- Remove useless environment to have a cleaner cmake command.
- Replace the build test by a genrandconfig update.

Changes in v4:
- Fix a recursive dependency loop issue. TF-M was depend on 3rd parties
   which where was patch dependent on TF-M to have access to their patches.
   Instead patch the 3rd parties sources in the TF-M packages.

Changes in v3:
- Add select BR2_HOST_CMAKE_AT_LEAST_3_21 to avoid cmake configure error
   due to old cmake version.
- Fix a Kconfig check-package too long line warning.

Changes in v2:
- Add TF-M to DEVELOPERS file
- Fix few nit.
---
 DEVELOPERS          |   1 +
 boot/Config.in      |   1 +
 boot/tf-m/Config.in |  95 +++++++++++++++++++++++++++++++++
 boot/tf-m/tf-m.hash |  11 ++++
 boot/tf-m/tf-m.mk   | 126 ++++++++++++++++++++++++++++++++++++++++++++
 utils/genrandconfig |   3 ++
 6 files changed, 237 insertions(+)
 create mode 100644 boot/tf-m/Config.in
 create mode 100644 boot/tf-m/tf-m.hash
 create mode 100644 boot/tf-m/tf-m.mk

diff --git a/DEVELOPERS b/DEVELOPERS
index 069965680b..8d462686ad 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -2030,6 +2030,7 @@ F:	board/octavo/osd32mp1-brk/
 F:	board/octavo/osd32mp1-red/
 F:	configs/octavo_osd32mp1_brk_defconfig
 F:	configs/octavo_osd32mp1_red_defconfig
+F:	boot/tf-m/
 
 N:	Kris Bahnsen <kris@embeddedTS.com>
 F:	package/wilc-firmware/
diff --git a/boot/Config.in b/boot/Config.in
index 5c8d0e7ee5..d728a5c542 100644
--- a/boot/Config.in
+++ b/boot/Config.in
@@ -17,6 +17,7 @@ source "boot/shim/Config.in"
 source "boot/syslinux/Config.in"
 source "boot/ti-k3-boot-firmware/Config.in"
 source "boot/ti-k3-r5-loader/Config.in"
+source "boot/tf-m/Config.in"
 source "boot/uboot/Config.in"
 source "boot/vexpress-firmware/Config.in"
 source "boot/xilinx-prebuilt/Config.in"
diff --git a/boot/tf-m/Config.in b/boot/tf-m/Config.in
new file mode 100644
index 0000000000..878b7719a4
--- /dev/null
+++ b/boot/tf-m/Config.in
@@ -0,0 +1,95 @@
+config BR2_TARGET_TF_M
+	bool "TrustedFirmware-M (TF-M)"
+	select BR2_HOST_CMAKE_AT_LEAST_3_21
+	help
+	  Enable this option if you want to build the TF-M for your
+	  ARMv8-M microcontroller.
+
+	  https://trustedfirmware-m.readthedocs.io
+
+if BR2_TARGET_TF_M
+choice
+	prompt "TF-M Version"
+	help
+	  Select the specific TF-M version you want to use
+
+config BR2_TARGET_TF_M_LATEST_VERSION
+	bool "v2.1.0"
+
+config BR2_TARGET_TF_M_CUSTOM_VERSION
+	bool "Custom version"
+	help
+	  This option allows to use a specific official version
+
+config BR2_TARGET_TF_M_CUSTOM_TARBALL
+	bool "Custom tarball"
+
+config BR2_TARGET_TF_M_CUSTOM_GIT
+	bool "Custom Git repository"
+
+endchoice
+
+config BR2_TARGET_TF_M_CUSTOM_TARBALL_LOCATION
+	string "URL of custom TF-M tarball"
+	depends on BR2_TARGET_TF_M_CUSTOM_TARBALL
+
+config BR2_TARGET_TF_M_CUSTOM_VERSION_VALUE
+	string "TF-M version"
+	depends on BR2_TARGET_TF_M_CUSTOM_VERSION
+
+if BR2_TARGET_TF_M_CUSTOM_GIT
+
+config BR2_TARGET_TF_M_CUSTOM_REPO_URL
+	string "URL of custom repository"
+
+config BR2_TARGET_TF_M_CUSTOM_REPO_VERSION
+	string "Custom repository version"
+	help
+	  Revision to use in the typical format used by Git
+	  E.G. a sha id, a tag, ..
+
+endif
+
+config BR2_TARGET_TF_M_VERSION
+	string
+	default "0c4c99ba33b3e66deea070e149279278dc7647f4" \
+				if BR2_TARGET_TF_M_LATEST_VERSION
+	default "custom"	if BR2_TARGET_TF_M_CUSTOM_TARBALL
+	default BR2_TARGET_TF_M_CUSTOM_REPO_VERSION \
+				if BR2_TARGET_TF_M_CUSTOM_GIT
+	default BR2_TARGET_TF_M_CUSTOM_VERSION_VALUE \
+				if BR2_TARGET_TF_M_CUSTOM_VERSION
+
+config BR2_TARGET_TF_M_MBEDTLS_TARBALL_LOCATION
+	string "URL of custom mbedtls tarball" \
+		if !BR2_TARGET_TF_M_LATEST_VERSION
+	default "https://github.com/Mbed-TLS/mbedtls/releases/download/v3.6.0/mbedtls-3.6.0.tar.bz2"
+
+config BR2_TARGET_TF_M_MCUBOOT_TARBALL_LOCATION
+	string "URL of mcuboot tarball" \
+		if !BR2_TARGET_TF_M_LATEST_VERSION
+	default "$(call github,mcu-tools,mcuboot,v2.1.0)/mcuboot-v2.1.0.tar.gz"
+
+config BR2_TARGET_TF_M_CMSIS_TARBALL_LOCATION
+	string "URL of cmsis tarball" \
+		if !BR2_TARGET_TF_M_LATEST_VERSION
+	default "$(call github,arm-software,cmsis_6,d0c460c169)/cmsis-d0c460c169.tar.gz"
+
+config BR2_TARGET_TF_M_QCBOR_TARBALL_LOCATION
+	string "URL of qcbor tarball" \
+		if !BR2_TARGET_TF_M_LATEST_VERSION
+	default "$(call github,laurencelundblade,qcbor,v1.2)/qcbor-v1.2.tar.gz"
+
+config BR2_TARGET_TF_M_PLATFORM
+	string "TF-M platform path"
+	help
+	  Target plaform path to build for.
+	  E.G. 'arm/mps2/an521'
+
+config BR2_TARGET_TF_M_ADDITIONAL_VARIABLES
+	string "Additional TF-M build variables"
+	help
+	  Additional parameters for the TF-M build
+	  E.G. '-DTFM_ISOLATION_LEVEL=2 -DCMAKE_BUILD_TYPE=Debug'
+
+endif
diff --git a/boot/tf-m/tf-m.hash b/boot/tf-m/tf-m.hash
new file mode 100644
index 0000000000..fe792f6746
--- /dev/null
+++ b/boot/tf-m/tf-m.hash
@@ -0,0 +1,11 @@
+# Locally calculated
+sha256  0b8df41136d4c381787e4149f3a0c002b39a168db7995eef15ebe4f27fa16098  tf-m-0c4c99ba33b3e66deea070e149279278dc7647f4-git4.tar.gz
+sha256  c16df600171bfdae60d22a01f046d742f89ba1046e2e5ed135bbf091b21be34f  license.rst
+sha256  3ecf94fcfdaacafb757786a01b7538a61750ebd85c4b024f56ff8ba1490fcd38  mbedtls-3.6.0.tar.bz2
+sha256  9b405ef4c89342f5eae1dd828882f931747f71001cfba7d114801039b52ad09b  3rd_parties/mbedcrypto/LICENSE
+sha256  bcee8c4b5a51477b27c6c587d11f46388823626aba7bd5082c77864a89dcf1b7  mcuboot-v2.1.0.tar.gz
+sha256  86438164119907debf649e2f9f18a43ad506d75421c9d9675700066b0456205d  3rd_parties/mcuboot/LICENSE
+sha256  0f706ad90ada600bd1ddbdf8dc6f2f5910e11de355bb4454b9b4123f0e4ff525  qcbor-v1.2.tar.gz
+sha256  fc6db297a2751188d9c2ece6ee468a295f285b9a24f96eab954a1a823c71be3b  3rd_parties/qcbor/README.md
+sha256  d846342840831f9124157b69b8edcdfcacc5427691f5b3341f714f0235c3cc49  cmsis-d0c460c169.tar.gz
+sha256  b40930bbcf80744c86c46a12bc9da056641d722716c378f5659b9e555ef833e1  3rd_parties/cmsis/LICENSE
diff --git a/boot/tf-m/tf-m.mk b/boot/tf-m/tf-m.mk
new file mode 100644
index 0000000000..086d6c53be
--- /dev/null
+++ b/boot/tf-m/tf-m.mk
@@ -0,0 +1,126 @@
+################################################################################
+#
+# TrustedFirmware-M
+#
+################################################################################
+
+TF_M_VERSION = $(call qstrip,$(BR2_TARGET_TF_M_VERSION))
+
+ifeq ($(BR2_TARGET_TF_M_CUSTOM_TARBALL),y)
+# Handle custom FT-M tarballs as specified by the configuration
+TF_M_TARBALL = $(call qstrip,$(BR2_TARGET_TF_M_CUSTOM_TARBALL_LOCATION))
+TF_M_SITE = $(patsubst %/,%,$(dir $(TF_M_TARBALL)))
+TF_M_SOURCE = $(notdir $(TF_M_TARBALL))
+else ifeq ($(BR2_TARGET_TF_M_CUSTOM_GIT),y)
+TF_M_SITE = $(call qstrip,$(BR2_TARGET_TF_M_CUSTOM_REPO_URL))
+TF_M_SITE_METHOD = git
+else
+# Handle stable official TF-M versions
+TF_M_SITE = https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git
+TF_M_SITE_METHOD = git
+# The licensing of custom or from-git versions is unknown
+# This is valid only for the latest (i.e. known) version
+ifeq ($(BR2_TARGET_TF_M_LATEST_VERSION),y)
+TF_M_LICENSE = BSD-3-Clause, Apache-2.0, GPL-2.0-or-later
+TF_M_LICENSE_FILES = \
+	license.rst \
+	3rd_parties/cmsis/LICENSE \
+	3rd_parties/mbedcrypto/LICENSE \
+	3rd_parties/mcuboot/LICENSE \
+	3rd_parties/qcbor/README.md
+endif
+endif
+
+ifeq ($(BR3_TARGET_TF_M):$(BR2_TARGET_TF_M_LATEST_VERSION),y:)
+BR_NO_CHECK_HASH_FOR += $(TF_M_SOURCE)
+endif
+
+# Use mbedcrypto naming from TF-M instead of mbedtl for easier 3rd
+# parties management
+TF_M_MBEDCRYPTO_TARBALL = $(call qstrip,$(BR2_TARGET_TF_M_MBEDTLS_TARBALL_LOCATION))
+TF_M_MCUBOOT_TARBALL = $(call qstrip,$(BR2_TARGET_TF_M_MCUBOOT_TARBALL_LOCATION))
+TF_M_CMSIS_TARBALL = $(call qstrip,$(BR2_TARGET_TF_M_CMSIS_TARBALL_LOCATION))
+TF_M_QCBOR_TARBALL = $(call qstrip,$(BR2_TARGET_TF_M_QCBOR_TARBALL_LOCATION))
+TF_M_EXTRA_DOWNLOADS += \
+	$(TF_M_MBEDCRYPTO_TARBALL) \
+	$(TF_M_MCUBOOT_TARBALL) \
+	$(TF_M_CMSIS_TARBALL) \
+	$(TF_M_QCBOR_TARBALL)
+
+TF_M_DEPENDENCIES += \
+	$(BR2_CMAKE_HOST_DEPENDENCY) \
+	host-arm-gnu-toolchain \
+	host-python-cbor2 \
+	host-python-click \
+	host-python-cryptography \
+	host-python-jinja2 \
+	host-python-intelhex \
+	host-python-pyyaml
+
+TF_M_3RD_PARTIES = mbedcrypto mcuboot cmsis qcbor
+
+define TF_M_EXTRACT_3RD_PARTIES
+	$(foreach f, $(TF_M_3RD_PARTIES), \
+		mkdir -p $(@D)/3rd_parties/$(f) ; \
+		$(call suitable-extractor,$(notdir $(TF_M_$(call UPPERCASE,$(f))_TARBALL))) \
+		$(TF_M_DL_DIR)/$(notdir $(TF_M_$(call UPPERCASE,$(f))_TARBALL)) | \
+		$(TAR) --strip-components=1 -C $(@D)/3rd_parties/$(f) $(TAR_OPTIONS) -
+	)
+endef
+TF_M_POST_EXTRACT_HOOKS += TF_M_EXTRACT_3RD_PARTIES
+
+define TF_M_PATCH_3RD_PARTIES
+	$(foreach f, $(TF_M_3RD_PARTIES), \
+		if [ -d $(@D)/lib/ext/$(f) ]; then \
+			$(APPLY_PATCHES) $(@D)/3rd_parties/$(f) $(@D)/lib/ext/$(f) \*.patch; \
+		fi;
+	)
+endef
+TF_M_POST_PATCH_HOOKS += TF_M_PATCH_3RD_PARTIES
+
+TF_M_CONF_OPTS += \
+	-DFETCHCONTENT_FULLY_DISCONNECTED=ON \
+	-DCROSS_COMPILE=$(HOST_DIR)/bin/arm-none-eabi \
+	-DMBEDCRYPTO_PATH=$(@D)/3rd_parties/mbedcrypto \
+	-DMCUBOOT_PATH=$(@D)/3rd_parties/mcuboot \
+	-DQCBOR_PATH=$(@D)/3rd_parties/qcbor \
+	-DCMSIS_PATH=$(@D)/3rd_parties/cmsis \
+	-DTFM_PLATFORM=$(call qstrip,$(BR2_TARGET_TF_M_PLATFORM))
+
+define TF_M_CONFIGURE_CMDS
+	rm -f $(@D)/CMakeCache.txt
+	PATH=$(BR_PATH) \
+	$(BR2_CMAKE) -S $(@D) -B $(@D) \
+		$(TF_M_CONF_OPTS) \
+		$(call qstrip,$(BR2_TARGET_TF_M_ADDITIONAL_VARIABLES))
+endef
+
+define TF_M_BUILD_CMDS
+	PATH=$(BR_PATH) \
+	$(BR2_CMAKE) --build $(@D) -- install
+endef
+
+define TF_M_INSTALL_TARGET_CMDS
+	mkdir -p $(BINARIES_DIR)/tf-m
+	$(INSTALL) -D -m 0755 $(@D)/api_ns/bin/*.bin $(BINARIES_DIR)/tf-m
+	$(INSTALL) -D -m 0755 $(@D)/api_ns/bin/*.elf $(BINARIES_DIR)/tf-m
+endef
+
+# Configuration check
+ifeq ($(BR2_TARGET_TF_M)$(BR_BUILDING),yy)
+
+ifeq ($(BR2_TARGET_TF_M_CUSTOM_TARBALL),y)
+ifeq ($(call qstrip,$(BR2_TARGET_TF_M_CUSTOM_TARBALL_LOCATION)),)
+$(error No tarball location specified. Please check BR2_TARGET_TF_M_CUSTOM_TARBALL_LOCATION)
+endif
+endif
+
+ifeq ($(BR2_TARGET_TF_M_CUSTOM_GIT),y)
+ifeq ($(call qstrip,$(BR2_TARGET_TF_M_CUSTOM_REPO_URL)),)
+$(error No repository specified. Please check BR2_TARGET_TF_M_CUSTOM_REPO_URL)
+endif
+endif
+
+endif
+
+$(eval $(generic-package))
diff --git a/utils/genrandconfig b/utils/genrandconfig
index 282a9ebdea..b7e2e080eb 100755
--- a/utils/genrandconfig
+++ b/utils/genrandconfig
@@ -371,6 +371,9 @@ async def fixup_config(sysinfo, configfile):
         configlines.remove('BR2_TARGET_S500_BOOTLOADER=y\n')
         configlines.remove('BR2_TARGET_S500_BOOTLOADER_BOARD=""\n')
 
+    if 'BR2_TARGET_TF_M=y\n' in configlines:
+        configlines.append('BR2_TARGET_TF_M_PLATFORM="arm/mps2/an521"\n')
+
     if 'BR2_TARGET_TI_K3_R5_LOADER=y\n' in configlines and \
        'BR2_TARGET_TI_K3_R5_LOADER_USE_DEFCONFIG=y\n' in configlines and \
        'BR2_TARGET_TI_K3_R5_LOADER_BOARD_DEFCONFIG=""\n' in configlines:
-- 
2.25.1

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Re: [Buildroot] [PATCH v6 3/3] boot: Add support for TrustedFirmware-M package

[Kory Maincent via buildroot]

On Thu, 17 Oct 2024 16:05:28 +0200
Arnout Vandecappelle <arnout@mind.be> wrote:

> On 17/10/2024 15:46, Thomas Petazzoni wrote:
> > Hello Köry,
> > 
> > Thanks for the new iteration.
> > 
> > On Mon, 14 Oct 2024 14:29:22 +0000
> > Kory Maincent via buildroot <buildroot@buildroot.org> wrote:
> >   
> >> Changes in v5:
> >> - Use EXTRA_DOWNLOAD instead of subpackages for 3rd parties.  
> > 
> > I didn't follow the conversation. What was the reasoning to switch
> > "back" from sub-packages to EXTRA_DOWNLOADS ?
> > 
> > In particular, I remember in our earlier conversation, we had figured
> > out that EXTRA_DOWNLOADS would not work because one of the packages was
> > using git sub-modules, and therefore the Github auto-generated tarball
> > was not sufficient.  
> 
>   The reasoning was that it's much simpler than sub-packages - in particular 
> because the sub-packages are ugly, the super-package has to traipse in the 
> sub-packages source directory to be able to do its thing.
> 
>   There was indeed one of the sub-packages that had to be kept because of the 
> submodules, but apparently this is no longer the case.
> 
> 
> 
> >> +config BR2_TARGET_TF_M_MBEDTLS_TARBALL_LOCATION
> >> +	string "URL of custom mbedtls tarball" \
> >> +		if !BR2_TARGET_TF_M_LATEST_VERSION
> >> +	default
> >> "https://github.com/Mbed-TLS/mbedtls/releases/download/v3.6.0/mbedtls-3.6.0.tar.bz2"
> >>  
> > 
> > Is it now possible because they provide release tarballs, that include
> > all sub-modules?
> >   
> >> +config BR2_TARGET_TF_M_MCUBOOT_TARBALL_LOCATION
> >> +	string "URL of mcuboot tarball" \
> >> +		if !BR2_TARGET_TF_M_LATEST_VERSION
> >> +	default "$(call
> >> github,mcu-tools,mcuboot,v2.1.0)/mcuboot-v2.1.0.tar.gz" +
> >> +config BR2_TARGET_TF_M_CMSIS_TARBALL_LOCATION
> >> +	string "URL of cmsis tarball" \
> >> +		if !BR2_TARGET_TF_M_LATEST_VERSION
> >> +	default "$(call
> >> github,arm-software,cmsis_6,d0c460c169)/cmsis-d0c460c169.tar.gz" +
> >> +config BR2_TARGET_TF_M_QCBOR_TARBALL_LOCATION
> >> +	string "URL of qcbor tarball" \
> >> +		if !BR2_TARGET_TF_M_LATEST_VERSION
> >> +	default "$(call
> >> github,laurencelundblade,qcbor,v1.2)/qcbor-v1.2.tar.gz"  
> > 
> > My concern with this is that we're trying to move away from
> > auto-generated Github tarballs,  
> 
>   Yeah, my feedback was from before we decided that...
> 
> 
> > and this adds a case where it would be
> > difficult to switch away from those auto-generated tarballs and use a
> > proper Git clone: this would require sub-packages, like you did
> > previously.  
> 
>   I would really prefer a solution where it is possible to specify all the 
> information needed to be able to do the download in a single URL (*). That
> way, we can also use git and cargo for EXTRA_DOWNLOADS. So something like 
> git+https://github.com/laurencelundblade/qcbor@v1.2
> 
>   And that might even allow us to avoid a mass conversion away from the
> github macro and instead encode everything there.
> 
>   (*) Should probably be called something else than URL, because this no
> longer looks like a real URL. dlspec?

If we don't use tarball for extra download, couldn't we decrease the git clone
time using --single-branch and/or --depth 1?

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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Re: [Buildroot] [PATCH v6 3/3] boot: Add support for TrustedFirmware-M package

[Thomas Petazzoni via buildroot]

On Mon, 21 Oct 2024 11:47:52 +0200
Kory Maincent <kory.maincent@bootlin.com> wrote:

> If we don't use tarball for extra download, couldn't we decrease the git clone
> time using --single-branch and/or --depth 1?

One of the big points of switching to Git downloads is that we keep a
cache of the Git repository, which doesn't work well with --depth 1.

See the reasoning in commit 4f54c959dc18cb3ca56e8f54b358fc219352d7bd.

Best regards,

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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Re: [Buildroot] [PATCH v6 0/3] Adds support for TrustedFirmware-M

[Kory Maincent via buildroot]

On Mon, 14 Oct 2024 14:29:19 +0000
Kory Maincent <kory.maincent@bootlin.com> wrote:

> This series adds support for TrustedFirmware-M (TF-M).
> https://trustedfirmware-m.readthedocs.io
> https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git
> 
> Trusted Firmware-M implements the Secure Processing Environment (SPE)
> for Armv8-M, Armv8.1-M architectures (e.g. the Cortex-M33, Cortex-M23,
> Cortex-M55, Cortex-M85 processors) or dual-core platforms.
> 
> Patches 1-2: Address host Python package dependencies.
> Patch 3: Add support for TF-M.
> 
> Changes in v5:
> - Remove python-cbor2 host support dependency which is already merged
>   mainline.
> - Use EXTRA_DOWNLOAD instead of subpackages for 3rd parties.
> - Remove TF-M tests 3rd parties.
> - Made few Kconfig, and cmake changes.

Oops, small mistake, I used v6 in the subject instead of v5.

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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