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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-06-23 12:07:01 +0900 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-06-23 12:18:04 +0200 |
| commit | cca129e716fef156831ee26a624d2d0a0550ba8c (patch) | |
| tree | f305ae175806abd30065b1f7284ec9614169db9f /scripts | |
| parent | bc4840e98b94e4e78f76b761293d965edcfb094d (diff) | |
| download | barebox-cca129e716fef156831ee26a624d2d0a0550ba8c.tar.gz barebox-cca129e716fef156831ee26a624d2d0a0550ba8c.tar.xz | |
kbuild: add infrastructure to build userspace programs
Import Linux commit 7f3a59db274c3e3d884c785e363a054110f1c266
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.build | 6 | ||||
| -rw-r--r-- | scripts/Makefile.clean | 2 | ||||
| -rw-r--r-- | scripts/Makefile.userprogs | 45 |
3 files changed, 52 insertions, 1 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 00f627791a..a3dfe261af 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -49,6 +49,12 @@ ifneq ($(hostprogs)$(hostprogs-y)$(hostprogs-m),) include scripts/Makefile.host endif +# Do not include userprogs rules unless needed. +userprogs := $(sort $(userprogs)) +ifneq ($(userprogs),) +include scripts/Makefile.userprogs +endif + ifndef obj $(warning kbuild: Makefile.build is included improperly) endif diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 6e6c9ef7c6..97fd2ef48c 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -37,7 +37,7 @@ subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) __clean-files := $(extra-y) $(extra-m) $(extra-) \ $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files) \ - $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) + $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) $(userprogs) # as clean-files is given relative to the current directory, this adds # a $(obj) prefix, except for absolute paths diff --git a/scripts/Makefile.userprogs b/scripts/Makefile.userprogs new file mode 100644 index 0000000000..fb41529733 --- /dev/null +++ b/scripts/Makefile.userprogs @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Build userspace programs for the target system +# + +# Executables compiled from a single .c file +user-csingle := $(foreach m, $(userprogs), $(if $($(m)-objs),,$(m))) + +# Executables linked based on several .o files +user-cmulti := $(foreach m, $(userprogs), $(if $($(m)-objs),$(m))) + +# Objects compiled from .c files +user-cobjs := $(sort $(foreach m, $(userprogs), $($(m)-objs))) + +user-csingle := $(addprefix $(obj)/, $(user-csingle)) +user-cmulti := $(addprefix $(obj)/, $(user-cmulti)) +user-cobjs := $(addprefix $(obj)/, $(user-cobjs)) + +user_ccflags = -Wp,-MMD,$(depfile) $(KBUILD_USERCFLAGS) $(userccflags) \ + $($(target-stem)-userccflags) +user_ldflags = $(KBUILD_USERLDFLAGS) $(userldflags) $($(target-stem)-userldflags) + +# Create an executable from a single .c file +quiet_cmd_user_cc_c = CC [U] $@ + cmd_user_cc_c = $(CC) $(user_ccflags) $(user_ldflags) -o $@ $< \ + $($(target-stem)-userldlibs) +$(user-csingle): $(obj)/%: $(src)/%.c FORCE + $(call if_changed_dep,user_cc_c) + +# Link an executable based on list of .o files +quiet_cmd_user_ld = LD [U] $@ + cmd_user_ld = $(CC) $(user_ldflags) -o $@ \ + $(addprefix $(obj)/, $($(target-stem)-objs)) \ + $($(target-stem)-userldlibs) +$(user-cmulti): FORCE + $(call if_changed,user_ld) +$(call multi_depend, $(user-cmulti), , -objs) + +# Create .o file from a .c file +quiet_cmd_user_cc_o_c = CC [U] $@ + cmd_user_cc_o_c = $(CC) $(user_ccflags) -c -o $@ $< +$(user-cobjs): $(obj)/%.o: $(src)/%.c FORCE + $(call if_changed_dep,user_cc_o_c) + +targets += $(user-csingle) $(user-cmulti) $(user-cobjs) |