[Buildroot] [RFCv3 05/15] pkg-generic: add .stamp_installed step

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, All,

On 2017-12-01 21:53 +0100, Thomas Petazzoni spake thusly:
> The installation to target, staging and images as well as the host
> installation are all done in 4 different make targets. We don't have
> any place currently to run something at the end of a package
> installation, i.e once all of target/staging/images (for target) or
> host (for host) installation have completed.
> 
> We will need such a step to fix the RPATH of binaries in the host
> directory. Indeed, while normally only host packages should install
> things in $(HOST_DIR), in practice a number of target packages (ex:
> qt4, qt5base) do install things in $(HOST_DIR).
> 
> Therefore, we want to run our RPATH fixing logic at the end of all
> installation steps. To achieve this, this commit introduces a new make
> target, .stamp_installed, which depends on
> .stamp_{target,staging,images}_installed for target packages and
> .stamp_host_installed for host packages.
> 
> This new step currently doesn't do anything, but the actual logic is
> added in a follow-up commit.
> 
> This change in fact makes the overall step sequencing more logical:
> for all steps the dependencies were done on the stamp file targets,
> except for the install step where we were using phony targets to make
> $(1)-install depends on $(1)-install-{target,staging,images,host}. So
> now, the phony targets $(1)-install-{target,staging,images,host} are
> only human-readable targets that are shortcuts to the corresponding
> stamp file targets, and not usded anymore for the step
> sequencing. This makes them more consistent with the other phony
> $(1)-{build,configure,patch,...} phony targets.
> 
> It also makes $(1)-install-host more consistent with other phony
> targets: $(1)-install-target only existed if the package had
> <pkg>_INSTALL_TARGET = YES, but $(1)-install-host existed
> unconditionally. Now it only exists if it's a host package.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> Changes since v2:
>  - None
> Changes since v1:
>  - New patch.
> ---
>  package/pkg-generic.mk | 44 +++++++++++++++++++++++++++-----------------
>  1 file changed, 27 insertions(+), 17 deletions(-)
> 
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 0019814276..2b821e9bdf 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -340,6 +340,12 @@ $(BUILD_DIR)/%/.stamp_target_installed:
>  	@$(call step_end,install-target)
>  	$(Q)touch $@
>  
> +# Finalize installation
> +$(BUILD_DIR)/%/.stamp_installed:
> +	@$(call step_start,install)
> +	@$(call step_end,install)
> +	$(Q)touch $@
> +
>  # Remove package sources
>  $(BUILD_DIR)/%/.stamp_dircleaned:
>  	rm -Rf $(@D)
> @@ -595,6 +601,7 @@ $(2)_TARGET_INSTALL_TARGET =	$$($(2)_DIR)/.stamp_target_installed
>  $(2)_TARGET_INSTALL_STAGING =	$$($(2)_DIR)/.stamp_staging_installed
>  $(2)_TARGET_INSTALL_IMAGES =	$$($(2)_DIR)/.stamp_images_installed
>  $(2)_TARGET_INSTALL_HOST =      $$($(2)_DIR)/.stamp_host_installed
> +$(2)_TARGET_INSTALL =      	$$($(2)_DIR)/.stamp_installed
>  $(2)_TARGET_BUILD =		$$($(2)_DIR)/.stamp_built
>  $(2)_TARGET_CONFIGURE =		$$($(2)_DIR)/.stamp_configured
>  $(2)_TARGET_RSYNC =	        $$($(2)_DIR)/.stamp_rsynced
> @@ -642,38 +649,40 @@ $(2)_ROOTFS_POST_CMD_HOOKS      ?=
>  # human-friendly targets and target sequencing
>  $(1):			$(1)-install
>  
> +$(1)-install:			$$($(2)_TARGET_INSTALL)
> +
>  ifeq ($$($(2)_TYPE),host)
> -$(1)-install:	        $(1)-install-host
> -else
> -$(1)-install:		$(1)-install-staging $(1)-install-target $(1)-install-images
> -endif
> +
> +$(1)-install-host:		$$($(2)_TARGET_INSTALL_HOST)
> +$$($(2)_TARGET_INSTALL):	$$($(2)_TARGET_INSTALL_HOST)
> +
> +else # host vs. target
>  
>  ifeq ($$($(2)_INSTALL_TARGET),YES)
>  $(1)-install-target:		$$($(2)_TARGET_INSTALL_TARGET)
> -$$($(2)_TARGET_INSTALL_TARGET):	$$($(2)_TARGET_BUILD)
> -else
> -$(1)-install-target:
> +$$($(2)_TARGET_INSTALL):	$$($(2)_TARGET_INSTALL_TARGET)
>  endif
>  
>  ifeq ($$($(2)_INSTALL_STAGING),YES)
> -$(1)-install-staging:			$$($(2)_TARGET_INSTALL_STAGING)
> -$$($(2)_TARGET_INSTALL_STAGING):	$$($(2)_TARGET_BUILD)
> -# Some packages use install-staging stuff for install-target
> -$$($(2)_TARGET_INSTALL_TARGET):		$$($(2)_TARGET_INSTALL_STAGING)
> -else
> -$(1)-install-staging:
> +$(1)-install-staging:		$$($(2)_TARGET_INSTALL_STAGING)
> +$$($(2)_TARGET_INSTALL):	$$($(2)_TARGET_INSTALL_STAGING)
>  endif
>  
>  ifeq ($$($(2)_INSTALL_IMAGES),YES)
>  $(1)-install-images:		$$($(2)_TARGET_INSTALL_IMAGES)
> -$$($(2)_TARGET_INSTALL_IMAGES):	$$($(2)_TARGET_BUILD)
> -else
> -$(1)-install-images:
> +$$($(2)_TARGET_INSTALL):	$$($(2)_TARGET_INSTALL_IMAGES)
>  endif
>  
> -$(1)-install-host:		$$($(2)_TARGET_INSTALL_HOST)
> +endif # host vs.target
> +
> +$$($(2)_TARGET_INSTALL_TARGET):	$$($(2)_TARGET_BUILD)
> +$$($(2)_TARGET_INSTALL_STAGING):$$($(2)_TARGET_BUILD)
> +$$($(2)_TARGET_INSTALL_IMAGES):	$$($(2)_TARGET_BUILD)
>  $$($(2)_TARGET_INSTALL_HOST):	$$($(2)_TARGET_BUILD)
>  
> +# Some packages use install-staging stuff for install-target
> +$$($(2)_TARGET_INSTALL_TARGET):		$$($(2)_TARGET_INSTALL_STAGING)
> +
>  $(1)-build:		$$($(2)_TARGET_BUILD)
>  $$($(2)_TARGET_BUILD):	$$($(2)_TARGET_CONFIGURE)
>  
> @@ -813,6 +822,7 @@ $(1)-reconfigure:	$(1)-clean-for-reconfigure $(1)
>  
>  # define the PKG variable for all targets, containing the
>  # uppercase package variable prefix
> +$$($(2)_TARGET_INSTALL):		PKG=$(2)
>  $$($(2)_TARGET_INSTALL_TARGET):		PKG=$(2)
>  $$($(2)_TARGET_INSTALL_STAGING):	PKG=$(2)
>  $$($(2)_TARGET_INSTALL_IMAGES):		PKG=$(2)
> -- 
> 2.13.6
> 

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