Andy Lutomirski report that build individual testcase in x86 is broken:
$ make -C tools/testing/selftests/x86 ldt_gdt_32
make: Entering directory '/home/luto/apps/linux/tools/testing/selftests/x86'
Makefile:44: warning: overriding recipe for target 'clean'
../lib.mk:55: warning: ignoring old recipe for target 'clean'
make: *** No rule to make target 'ldt_gdt_32'. Stop.
make: Leaving directory '/home/luto/apps/linux/tools/testing/selftests/x86'
This patch fix this issue by adding default OUTPUT and convert
target in Makefile of x86.
And also mention this use case in Documentation/kselftests.txt
Reported-by: Andy Lutomirski <l...@amacapital.net>
Signed-off-by: Bamvor Jian Zhang <bamvor.zhangj...@linaro.org>
---
Documentation/kselftest.txt | 6 ++++++
tools/testing/selftests/x86/Makefile | 23 ++++++++++++++---------
2 files changed, 20 insertions(+), 9 deletions(-)
diff --git a/Documentation/kselftest.txt b/Documentation/kselftest.txt
index 5bd5903..3dfca71 100644
--- a/Documentation/kselftest.txt
+++ b/Documentation/kselftest.txt
@@ -43,6 +43,12 @@ See the top-level tools/testing/selftests/Makefile for the
list of all
possible targets.
+Building individual test case of a subset
+=========================================
+You could build the individual test case in subset if subset supported:
+ $ make -C tools/testing/selftests/x86 ldt_gdt_32
+
+
Running the full range hotplug selftests
========================================
diff --git a/tools/testing/selftests/x86/Makefile
b/tools/testing/selftests/x86/Makefile
index 38e0a9c..855a2a1 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -17,8 +17,8 @@ TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS)
$(TARGETS_C_64BIT_ONLY)
BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
-BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
-BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
+BINARIES_32_FULL_PATH := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
+BINARIES_64_FULL_PATH := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
@@ -28,25 +28,29 @@ CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC)
trivial_64bit_program.c)
ifeq ($(CAN_BUILD_I386),1)
all: all_32
-TEST_PROGS += $(BINARIES_32)
+TEST_PROGS += $(BINARIES_32_FULL_PATH)
endif
ifeq ($(CAN_BUILD_X86_64),1)
all: all_64
-TEST_PROGS += $(BINARIES_64)
+TEST_PROGS += $(BINARIES_64_FULL_PATH)
endif
-all_32: $(BINARIES_32)
+all_32: $(BINARIES_32_FULL_PATH)
-all_64: $(BINARIES_64)
+all_64: $(BINARIES_64_FULL_PATH)
clean:
- $(RM) $(BINARIES_32) $(BINARIES_64)
+ $(RM) $(BINARIES_32_FULL_PATH) $(BINARIES_64_FULL_PATH)
-$(BINARIES_32): $(OUTPUT)/%_32: %.c
+$(BINARIES_32): %_32: $(OUTPUT)/%_32
+
+$(BINARIES_64): %_64: $(OUTPUT)/%_64
+
+$(BINARIES_32_FULL_PATH): $(OUTPUT)/%_32: %.c
$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm
-$(BINARIES_64): $(OUTPUT)/%_64: %.c
+$(BINARIES_64_FULL_PATH): $(OUTPUT)/%_64: %.c
$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
# x86_64 users should be encouraged to install 32-bit libraries
@@ -77,3 +81,4 @@ $(OUTPUT)/test_syscall_vdso_32: thunks_32.S
# state.
$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
+
--
1.9.1
