Currently the feature-checks Makefile does not inherit $(CC), and calls
cc rather than $(CROSS_COMPILE)gcc. Thus the feature checks invoke the
native toolchain rather than the cross toolchain, and can identify
features as available when they are not. This can break the build.
Additionally the native pkg-config is always called as opposed to
$(CROSS_COMPILE)pkg-config, so the wrong flags and paths may be passed
to the cross compiler.
This patch passes CROSS_COMPILE down to the feature-checks Makefile, and
forces its use. Additionally pkg-config is replaced with
$(CROSS_COMPILE)pkg-config via a new $(PKG_CONFIG) variable. This patch
has been build tested on x86_64 and arm.
Signed-off-by: Mark Rutland <mark.rutl...@arm.com>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
---
tools/perf/Makefile.perf | 1 +
tools/perf/config/Makefile | 6 +++---
tools/perf/config/feature-checks/Makefile | 9 +++++----
3 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 87d7726..7257e7e 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -76,6 +76,7 @@ $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
CC = $(CROSS_COMPILE)gcc
AR = $(CROSS_COMPILE)ar
+PKG_CONFIG = $(CROSS_COMPILE)pkg-config
RM = rm -f
LN = ln -f
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 01dd43d..d604e50 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -372,7 +372,7 @@ ifndef NO_SLANG
endif
ifndef NO_GTK2
- FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs
--cflags gtk+-2.0 2>/dev/null)
+ FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs
--cflags gtk+-2.0 2>/dev/null)
ifneq ($(feature-gtk2), 1)
msg := $(warning GTK2 not found, disables GTK2 support. Please install
gtk2-devel or libgtk2.0-dev);
NO_GTK2 := 1
@@ -381,8 +381,8 @@ ifndef NO_GTK2
GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
endif
CFLAGS += -DHAVE_GTK2_SUPPORT
- GTK_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
- GTK_LIBS := $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
+ GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
+ GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
EXTLIBS += -ldl
endif
endif
diff --git a/tools/perf/config/feature-checks/Makefile
b/tools/perf/config/feature-checks/Makefile
index 7cf6fcd..12e5513 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -28,7 +28,8 @@ FILES= \
test-stackprotector-all.bin \
test-timerfd.bin
-CC := $(CC) -MD
+CC := $(CROSS_COMPILE)gcc -MD
+PKG_CONFIG := $(CROSS_COMPILE)pkg-config
all: $(FILES)
@@ -37,7 +38,7 @@ BUILD = $(CC) $(CFLAGS) -o $(OUTPUT)$@ $(patsubst
%.bin,%.c,$@) $(LDFLAGS)
###############################
test-all.bin:
- $(BUILD) -Werror -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2
-ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config
--libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED)
-DPACKAGE='"perf"' -lbfd -ldl
+ $(BUILD) -Werror -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2
-ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell
$(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED)
$(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
test-hello.bin:
$(BUILD)
@@ -82,10 +83,10 @@ test-libslang.bin:
$(BUILD) -I/usr/include/slang -lslang
test-gtk2.bin:
- $(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
+ $(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
test-gtk2-infobar.bin:
- $(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
+ $(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
grep-libs = $(filter -l%,$(1))
strip-libs = $(filter-out -l%,$(1))
--
1.8.1.1
--
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