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perf: build: Setup PKG_CONFIG_LIBDIR for cross compilation

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On recent Linux distros like Ubuntu Noble and Debian Bookworm, the
'pkg-config-aarch64-linux-gnu' package is missing. As a result, the
aarch64-linux-gnu-pkg-config command is not available, which causes
build failures.

When a build passes the environment variables PKG_CONFIG_LIBDIR or
PKG_CONFIG_PATH, like a user uses make command or a build system
(like Yocto, Buildroot, etc) prepares the variables and passes to the
Perf's Makefile, the commit keeps these variables for package
configuration. Otherwise, this commit sets the PKG_CONFIG_LIBDIR
variable to use the Multiarch libs for the cross compilation.

Signed-off-by: Leo Yan <leo.yan@arm.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: amadio@gentoo.org
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20240717082211.524826-2-leo.yan@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Leo Yan 2024-07-17 09:22:06 +01:00 committed by Namhyung Kim
parent 4c17736689
commit 440cf77625
2 changed files with 50 additions and 2 deletions
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25
tools/build/feature/Makefile
View File

@ -82,7 +82,30 @@ FILES= \
FILES := $(addprefix $(OUTPUT),$(FILES))
PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
# Some distros provide the command $(CROSS_COMPILE)pkg-config for
# searching packges installed with Multiarch. Use it for cross
# compilation if it is existed.
ifneq (, $(shell which $(CROSS_COMPILE)pkg-config))
PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
else
PKG_CONFIG ?= pkg-config
# PKG_CONFIG_PATH or PKG_CONFIG_LIBDIR, alongside PKG_CONFIG_SYSROOT_DIR
# for modified system root, are required for the cross compilation.
# If these PKG_CONFIG environment variables are not set, Multiarch library
# paths are used instead.
ifdef CROSS_COMPILE
ifeq ($(PKG_CONFIG_LIBDIR)$(PKG_CONFIG_PATH)$(PKG_CONFIG_SYSROOT_DIR),)
CROSS_ARCH = $(shell $(CC) -dumpmachine)
PKG_CONFIG_LIBDIR := /usr/local/$(CROSS_ARCH)/lib/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/lib/$(CROSS_ARCH)/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/lib/$(CROSS_ARCH)/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/share/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/share/pkgconfig/
export PKG_CONFIG_LIBDIR
endif
endif
endif
all: $(FILES)

27
tools/perf/Makefile.perf
View File

@ -193,7 +193,32 @@ HOSTLD ?= ld
HOSTAR ?= ar
CLANG ?= clang
PKG_CONFIG = $(CROSS_COMPILE)pkg-config
# Some distros provide the command $(CROSS_COMPILE)pkg-config for
# searching packges installed with Multiarch. Use it for cross
# compilation if it is existed.
ifneq (, $(shell which $(CROSS_COMPILE)pkg-config))
PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
else
PKG_CONFIG ?= pkg-config
# PKG_CONFIG_PATH or PKG_CONFIG_LIBDIR, alongside PKG_CONFIG_SYSROOT_DIR
# for modified system root, is required for the cross compilation.
# If these PKG_CONFIG environment variables are not set, Multiarch library
# paths are used instead.
ifdef CROSS_COMPILE
ifeq ($(PKG_CONFIG_LIBDIR)$(PKG_CONFIG_PATH)$(PKG_CONFIG_SYSROOT_DIR),)
CROSS_ARCH = $(shell $(CC) -dumpmachine)
PKG_CONFIG_LIBDIR := /usr/local/$(CROSS_ARCH)/lib/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/lib/$(CROSS_ARCH)/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/lib/$(CROSS_ARCH)/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/share/pkgconfig/
PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/share/pkgconfig/
export PKG_CONFIG_LIBDIR
$(warning Missing PKG_CONFIG_LIBDIR, PKG_CONFIG_PATH and PKG_CONFIG_SYSROOT_DIR for cross compilation,)
$(warning set PKG_CONFIG_LIBDIR for using Multiarch libs.)
endif
endif
endif
RM = rm -f
LN = ln -f