[PATCH 0/4] selftests: fix compiling issues

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* [PATCH 0/4] selftests: fix compiling issues
@ 2018-03-26  9:23 changbin.du
  2018-03-26  9:23 ` [PATCH 1/4] selftests/Makefile: append a slash to env variable OUTPUT changbin.du
                   ` (3 more replies)
  0 siblings, 4 replies; 14+ messages in thread
From: changbin.du @ 2018-03-26  9:23 UTC (permalink / raw)
  To: shuah; +Cc: linux-kselftest, linux-kernel, Changbin Du

From: Changbin Du <changbin.du@intel.com>

These 4 patches fixed all the existing compiling errors. With this serias,
no compiling error reported after running 'make kselftest'.

Changbin Du (4):
  selftests/Makefile: append a slash to env variable OUTPUT
  selftests/gpio: fix paths in Makefile
  kselftest: install sanitized kernel headers before compiling
  selftests/bpf: fix compiling errors

 tools/testing/selftests/.gitignore      |  4 ----
 tools/testing/selftests/Makefile        | 21 ++++++++++++---------
 tools/testing/selftests/bpf/Makefile    |  5 +++--
 tools/testing/selftests/gpio/.gitignore |  4 ++++
 tools/testing/selftests/gpio/Makefile   | 14 +++++++-------
 5 files changed, 26 insertions(+), 22 deletions(-)

-- 
2.7.4


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH 1/4] selftests/Makefile: append a slash to env variable OUTPUT
  2018-03-26  9:23 [PATCH 0/4] selftests: fix compiling issues changbin.du
@ 2018-03-26  9:23 ` changbin.du
  2018-03-26  9:23 ` [PATCH 2/4] selftests/gpio: fix paths in Makefile changbin.du
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 14+ messages in thread
From: changbin.du @ 2018-03-26  9:23 UTC (permalink / raw)
  To: shuah; +Cc: linux-kselftest, linux-kernel, Changbin Du

From: Changbin Du <changbin.du@intel.com>

The tools/build/Makefile.build use 'OUTPUT' variable as below example:
objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)

So it requires the 'OUTPUT' already has a slash at the end.

This patch can kill below odd paths:
make[3]: Entering directory '/home/changbin/work/linux/tools/gpio'
  CC       /home/changbin/work/linux/tools/testing/selftests/gpiolsgpio.o
  CC       /home/changbin/work/linux/tools/testing/selftests/gpiogpio-utils.o
  LD       /home/changbin/work/linux/tools/testing/selftests/gpiolsgpio-in.o

A correct path should be:
/home/changbin/work/linux/tools/testing/selftests/gpio/lsgpio.o

Signed-off-by: Changbin Du <changbin.du@intel.com>
---
 tools/testing/selftests/Makefile | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 7442dfb..7916aa2 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -71,31 +71,31 @@ all:
 	@for TARGET in $(TARGETS); do		\
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		mkdir $$BUILD_TARGET  -p;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET;\
 	done;
 
 run_tests: all
 	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_tests;\
 	done;
 
 hotplug:
 	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET;\
 	done;
 
 run_hotplug: hotplug
 	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET run_full_test;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET run_full_test;\
 	done;
 
 clean_hotplug:
 	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean;\
 	done;
 
 run_pstore_crash:
@@ -111,7 +111,7 @@ ifdef INSTALL_PATH
 	mkdir -p $(INSTALL_PATH)
 	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
 	done;
 
 	@# Ask all targets to emit their test scripts
@@ -131,7 +131,7 @@ ifdef INSTALL_PATH
 		echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
 		echo "echo ========================================" >> $(ALL_SCRIPT); \
 		echo "cd $$TARGET" >> $(ALL_SCRIPT); \
-		make -s --no-print-directory OUTPUT=$$BUILD_TARGET -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
+		make -s --no-print-directory OUTPUT=$$BUILD_TARGET/ -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
 		echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
 	done;
 
@@ -143,7 +143,7 @@ endif
 clean:
 	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-		make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
+		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET clean;\
 	done;
 
 .PHONY: all run_tests hotplug run_hotplug clean_hotplug run_pstore_crash install clean
-- 
2.7.4


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH 2/4] selftests/gpio: fix paths in Makefile
  2018-03-26  9:23 [PATCH 0/4] selftests: fix compiling issues changbin.du
  2018-03-26  9:23 ` [PATCH 1/4] selftests/Makefile: append a slash to env variable OUTPUT changbin.du
@ 2018-03-26  9:23 ` changbin.du
  2018-03-26  9:23 ` [PATCH 3/4] kselftest: install sanitized kernel headers before compiling changbin.du
  2018-03-26  9:23 ` [PATCH 4/4] selftests/bpf: fix compiling errors changbin.du
  3 siblings, 0 replies; 14+ messages in thread
From: changbin.du @ 2018-03-26  9:23 UTC (permalink / raw)
  To: shuah; +Cc: linux-kselftest, linux-kernel, Changbin Du

From: Changbin Du <changbin.du@intel.com>

With previous improvement, the generated files from tools/gpio/ will
put into tools/testing/selftests/gpio/. Let's fix the paths in Makefile
and .gitignore.

Signed-off-by: Changbin Du <changbin.du@intel.com>
---
 tools/testing/selftests/.gitignore      |  4 ----
 tools/testing/selftests/gpio/.gitignore |  4 ++++
 tools/testing/selftests/gpio/Makefile   | 14 +++++++-------
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/tools/testing/selftests/.gitignore b/tools/testing/selftests/.gitignore
index 9175035..f0600d2 100644
--- a/tools/testing/selftests/.gitignore
+++ b/tools/testing/selftests/.gitignore
@@ -1,5 +1 @@
 kselftest
-gpiogpio-event-mon
-gpiogpio-hammer
-gpioinclude/
-gpiolsgpio
diff --git a/tools/testing/selftests/gpio/.gitignore b/tools/testing/selftests/gpio/.gitignore
index 7d14f74..21e83e1 100644
--- a/tools/testing/selftests/gpio/.gitignore
+++ b/tools/testing/selftests/gpio/.gitignore
@@ -1 +1,5 @@
 gpio-mockup-chardev
+gpio-event-mon
+gpio-hammer
+include/
+lsgpio
diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 1bbb475..73f0778 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -3,11 +3,11 @@
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh $(BINARIES)
 BINARIES := gpio-mockup-chardev
-EXTRA_PROGS := ../gpiogpio-event-mon ../gpiogpio-hammer ../gpiolsgpio
-EXTRA_DIRS := ../gpioinclude/
-EXTRA_OBJS := ../gpiogpio-event-mon-in.o ../gpiogpio-event-mon.o
-EXTRA_OBJS += ../gpiogpio-hammer-in.o ../gpiogpio-utils.o ../gpiolsgpio-in.o
-EXTRA_OBJS += ../gpiolsgpio.o
+EXTRA_PROGS := gpio-event-mon gpio-hammer lsgpio
+EXTRA_DIRS := ./include/
+EXTRA_OBJS := gpio-event-mon-in.o gpio-event-mon.o
+EXTRA_OBJS += gpio-hammer-in.o gpio-utils.o lsgpio-in.o
+EXTRA_OBJS += lsgpio.o
 
 include ../lib.mk
 
@@ -21,9 +21,9 @@ endef
 CFLAGS += -O2 -g -std=gnu99 -Wall -I../../../../usr/include/
 LDLIBS += -lmount -I/usr/include/libmount
 
-$(BINARIES): ../../../gpio/gpio-utils.o ../../../../usr/include/linux/gpio.h
+$(BINARIES): gpio-utils.o ../../../../usr/include/linux/gpio.h
 
-../../../gpio/gpio-utils.o:
+gpio-utils.o:
 	make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C ../../../gpio
 
 ../../../../usr/include/linux/gpio.h:
-- 
2.7.4


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH 3/4] kselftest: install sanitized kernel headers before compiling
  2018-03-26  9:23 [PATCH 0/4] selftests: fix compiling issues changbin.du
  2018-03-26  9:23 ` [PATCH 1/4] selftests/Makefile: append a slash to env variable OUTPUT changbin.du
  2018-03-26  9:23 ` [PATCH 2/4] selftests/gpio: fix paths in Makefile changbin.du
@ 2018-03-26  9:23 ` changbin.du
  2018-03-26  9:23 ` [PATCH 4/4] selftests/bpf: fix compiling errors changbin.du
  3 siblings, 0 replies; 14+ messages in thread
From: changbin.du @ 2018-03-26  9:23 UTC (permalink / raw)
  To: shuah; +Cc: linux-kselftest, linux-kernel, Changbin Du

From: Changbin Du <changbin.du@intel.com>

There are test cases that require kernel headers. Some of this
cases has put the dependency check into individual Makefiles,
but some not. Let's sync the kernel headers at top level
Makefile to avoid compiling errors like below.

make[1]: Entering directory '/home/changbin/work/linux/tools/testing/selftests/membarrier'
gcc -g -I../../../../usr/include/    membarrier_test.c  -o /home/changbin/work/linux/tools/testing/selftests/membarrier//membarrier_test
membarrier_test.c: In function ‘test_membarrier_global_success’:
membarrier_test.c:64:12: error: ‘MEMBARRIER_CMD_GLOBAL’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_GLOBAL, flags = 0;
            ^
membarrier_test.c:64:12: note: each undeclared identifier is reported only once for each function it appears in
membarrier_test.c: In function ‘test_membarrier_private_expedited_fail’:
membarrier_test.c:80:12: error: ‘MEMBARRIER_CMD_PRIVATE_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_register_private_expedited_success’:
membarrier_test.c:103:12: error: ‘MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_private_expedited_success’:
membarrier_test.c:120:12: error: ‘MEMBARRIER_CMD_PRIVATE_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_private_expedited_sync_core_fail’:
membarrier_test.c:137:12: error: ‘MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_register_private_expedited_sync_core_success’:
membarrier_test.c:160:12: error: ‘MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_private_expedited_sync_core_success’:
membarrier_test.c:177:12: error: ‘MEMBARRIER_CMD_PRIVATE_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_register_global_expedited_success’:
membarrier_test.c:194:12: error: ‘MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier_global_expedited_success’:
membarrier_test.c:211:12: error: ‘MEMBARRIER_CMD_GLOBAL_EXPEDITED’ undeclared (first use in this function)
  int cmd = MEMBARRIER_CMD_GLOBAL_EXPEDITED, flags = 0;
            ^
membarrier_test.c: In function ‘test_membarrier’:
membarrier_test.c:253:15: error: ‘MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE’ undeclared (first use in this function)
  if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) {
               ^
membarrier_test.c: In function ‘test_membarrier_query’:
membarrier_test.c:296:14: error: ‘MEMBARRIER_CMD_GLOBAL’ undeclared (first use in this function)
  if (!(ret & MEMBARRIER_CMD_GLOBAL)) {
              ^
../lib.mk:109: recipe for target '/home/changbin/work/linux/tools/testing/selftests/membarrier//membarrier_test' failed
make[1]: *** [/home/changbin/work/linux/tools/testing/selftests/membarrier//membarrier_test] Error 1
make[1]: Leaving directory '/home/changbin/work/linux/tools/testing/selftests/membarrier'

Signed-off-by: Changbin Du <changbin.du@intel.com>
---
 tools/testing/selftests/Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 7916aa2..656b674 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -67,13 +67,16 @@ ifndef BUILD
 endif
 
 export BUILD
-all:
+all: headers_install
 	@for TARGET in $(TARGETS); do		\
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET/ -C $$TARGET;\
 	done;
 
+headers_install:
+	make -C ../../../ headers_install
+
 run_tests: all
 	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
-- 
2.7.4


^ permalink raw reply	[flat|nested] 14+ messages in thread

* [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-26  9:23 [PATCH 0/4] selftests: fix compiling issues changbin.du
                   ` (2 preceding siblings ...)
  2018-03-26  9:23 ` [PATCH 3/4] kselftest: install sanitized kernel headers before compiling changbin.du
@ 2018-03-26  9:23 ` changbin.du
  2018-03-26 14:55   ` Alexei Starovoitov
  3 siblings, 1 reply; 14+ messages in thread
From: changbin.du @ 2018-03-26  9:23 UTC (permalink / raw)
  To: shuah; +Cc: linux-kselftest, linux-kernel, Changbin Du

From: Changbin Du <changbin.du@intel.com>

This patch fixed below errors of missing head files.

tools/testing/selftests$ make
...
clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
	 -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_pkt_access.o
In file included from test_pkt_access.c:9:
In file included from ../../../include/uapi/linux/bpf.h:11:
In file included from ./include/uapi/linux/types.h:5:
/usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
 #include <asm/bitsperlong.h>
         ^
1 error generated.
clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
	 -O2 -target bpf -emit-llvm -c test_xdp.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_xdp.o
In file included from test_xdp.c:9:
In file included from ../../../include/uapi/linux/bpf.h:11:
In file included from ./include/uapi/linux/types.h:5:
/usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
 #include <asm/bitsperlong.h>
         ^
1 error generated.
clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
	 -O2 -target bpf -emit-llvm -c test_l4lb.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_l4lb.o
In file included from test_l4lb.c:10:
In file included from /usr/include/linux/pkt_cls.h:4:
In file included from ./include/uapi/linux/types.h:5:
/usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
 #include <asm/bitsperlong.h>
         ^
1 error generated.
clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
	 -O2 -target bpf -emit-llvm -c test_tcp_estats.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_tcp_estats.o
In file included from test_tcp_estats.c:35:
In file included from ../../../include/uapi/linux/bpf.h:11:
In file included from ./include/uapi/linux/types.h:5:
/usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
 #include <asm/bitsperlong.h>
...

Signed-off-by: Changbin Du <changbin.du@intel.com>
---
 tools/testing/selftests/bpf/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 5c43c18..dc0fdc8 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
   GENFLAGS := -DHAVE_GENHDR
 endif
 
-CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
+CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
+	  -I../../../include -I../../../../usr/include
 LDLIBS += -lcap -lelf -lrt -lpthread
 
 # Order correspond to 'make run_tests' order
@@ -62,7 +63,7 @@ else
   CPU ?= generic
 endif
 
-CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
+CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
 	      -Wno-compare-distinct-pointer-types
 
 $(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
-- 
2.7.4


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-26  9:23 ` [PATCH 4/4] selftests/bpf: fix compiling errors changbin.du
@ 2018-03-26 14:55   ` Alexei Starovoitov
  2018-03-27  2:20     ` Du, Changbin
  2018-03-27  2:33     ` Du, Changbin
  0 siblings, 2 replies; 14+ messages in thread
From: Alexei Starovoitov @ 2018-03-26 14:55 UTC (permalink / raw)
  To: changbin.du; +Cc: shuah, linux-kselftest, linux-kernel, Daniel Borkmann, netdev

On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> From: Changbin Du <changbin.du@intel.com>
> 
> This patch fixed below errors of missing head files.
> 
> tools/testing/selftests$ make
> ...
> clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> 	 -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
> llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_pkt_access.o
> In file included from test_pkt_access.c:9:
> In file included from ../../../include/uapi/linux/bpf.h:11:
> In file included from ./include/uapi/linux/types.h:5:
> /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
>  #include <asm/bitsperlong.h>
>          ^
> 1 error generated.
> clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> 	 -O2 -target bpf -emit-llvm -c test_xdp.c -o - |      \
> llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_xdp.o
> In file included from test_xdp.c:9:
> In file included from ../../../include/uapi/linux/bpf.h:11:
> In file included from ./include/uapi/linux/types.h:5:
> /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
>  #include <asm/bitsperlong.h>
>          ^
> 1 error generated.
> clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> 	 -O2 -target bpf -emit-llvm -c test_l4lb.c -o - |      \
> llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_l4lb.o
> In file included from test_l4lb.c:10:
> In file included from /usr/include/linux/pkt_cls.h:4:
> In file included from ./include/uapi/linux/types.h:5:
> /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
>  #include <asm/bitsperlong.h>
>          ^
> 1 error generated.
> clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> 	 -O2 -target bpf -emit-llvm -c test_tcp_estats.c -o - |      \
> llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_tcp_estats.o
> In file included from test_tcp_estats.c:35:
> In file included from ../../../include/uapi/linux/bpf.h:11:
> In file included from ./include/uapi/linux/types.h:5:
> /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
>  #include <asm/bitsperlong.h>
> ...
> 
> Signed-off-by: Changbin Du <changbin.du@intel.com>
> ---
>  tools/testing/selftests/bpf/Makefile | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index 5c43c18..dc0fdc8 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
>    GENFLAGS := -DHAVE_GENHDR
>  endif
>  
> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> +	  -I../../../include -I../../../../usr/include
>  LDLIBS += -lcap -lelf -lrt -lpthread
>  
>  # Order correspond to 'make run_tests' order
> @@ -62,7 +63,7 @@ else
>    CPU ?= generic
>  endif
>  
> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
>  	      -Wno-compare-distinct-pointer-types

Nack.
I suspect that will break the build for everyone else who's doing it in the directory
itself instead of the outer one.


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-26 14:55   ` Alexei Starovoitov
@ 2018-03-27  2:20     ` Du, Changbin
  2018-03-27  3:02       ` Alexei Starovoitov
  2018-03-27  2:33     ` Du, Changbin
  1 sibling, 1 reply; 14+ messages in thread
From: Du, Changbin @ 2018-03-27  2:20 UTC (permalink / raw)
  To: Alexei Starovoitov
  Cc: changbin.du, shuah, linux-kselftest, linux-kernel,
	Daniel Borkmann, netdev

On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> > Signed-off-by: Changbin Du <changbin.du@intel.com>
> > ---
> >  tools/testing/selftests/bpf/Makefile | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> > index 5c43c18..dc0fdc8 100644
> > --- a/tools/testing/selftests/bpf/Makefile
> > +++ b/tools/testing/selftests/bpf/Makefile
> > @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> >    GENFLAGS := -DHAVE_GENHDR
> >  endif
> >  
> > -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> > +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> > +	  -I../../../include -I../../../../usr/include
> >  LDLIBS += -lcap -lelf -lrt -lpthread
> >  
> >  # Order correspond to 'make run_tests' order
> > @@ -62,7 +63,7 @@ else
> >    CPU ?= generic
> >  endif
> >  
> > -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> > +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> >  	      -Wno-compare-distinct-pointer-types
> 
> Nack.
> I suspect that will break the build for everyone else who's doing it in the directory
> itself instead of the outer one.
>

This one? But I didn't see any problem.

changbin@gvt-dell-host:~/work/linux/tools/testing/selftests/bpf$ make
make -C ../../../lib/bpf OUTPUT=/home/changbin/work/linux/tools/testing/selftests/bpf/
make[1]: Entering directory '/home/changbin/work/linux/tools/lib/bpf'
  HOSTCC   /home/changbin/work/linux/tools/testing/selftests/bpf/fixdep.o
  HOSTLD   /home/changbin/work/linux/tools/testing/selftests/bpf/fixdep-in.o
  LINK     /home/changbin/work/linux/tools/testing/selftests/bpf/fixdep
  CC       /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.o
  CC       /home/changbin/work/linux/tools/testing/selftests/bpf/bpf.o
  CC       /home/changbin/work/linux/tools/testing/selftests/bpf/nlattr.o
  LD       /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf-in.o
  LINK     /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a
  LINK     /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.so
make[1]: Leaving directory '/home/changbin/work/linux/tools/lib/bpf'
make -C ../../../lib/bpf OUTPUT=/home/changbin/work/linux/tools/testing/selftests/bpf/
make[1]: Entering directory '/home/changbin/work/linux/tools/lib/bpf'
make[1]: Leaving directory '/home/changbin/work/linux/tools/lib/bpf'
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_verifier.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_verifier
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_tag.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_tag
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_maps.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_maps
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_lru_map.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_lru_map
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_lpm_map.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_lpm_map
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_progs.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_progs
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_align.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_align
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_verifier_log.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_verifier_log
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_dev_cgroup.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_dev_cgroup
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_tcpbpf_user.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a cgroup_helpers.c -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_tcpbpf_user
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -DHAVE_GENHDR -I../../../include -I../../../../usr/include    test_libbpf_open.c /home/changbin/work/linux/tools/testing/selftests/bpf/libbpf.a -lcap -lelf -lrt -lpthread -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_libbpf_open
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_access.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_xdp.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_xdp.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_l4lb.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_l4lb.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_tcp_estats.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_tcp_estats.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_obj_id.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_obj_id.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_pkt_md_access.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_md_access.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_xdp_redirect.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_xdp_redirect.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_xdp_meta.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_xdp_meta.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c sockmap_parse_prog.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/sockmap_parse_prog.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c sockmap_verdict_prog.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/sockmap_verdict_prog.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c dev_cgroup.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/dev_cgroup.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c sample_ret0.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/sample_ret0.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_tracepoint.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_tracepoint.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types -fno-inline \
         -O2 -target bpf -emit-llvm -c test_l4lb_noinline.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_l4lb_noinline.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types -fno-inline \
         -O2 -target bpf -emit-llvm -c test_xdp_noinline.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_xdp_noinline.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_stacktrace_map.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_stacktrace_map.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c sample_map_ret0.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/sample_map_ret0.o
clang -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_tcpbpf_kern.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_tcpbpf_kern.o
changbin@gvt-dell-host:~/work/linux/tools/testing/selftests/bpf$ 

-- 
Thanks,
Changbin Du

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  2:20     ` Du, Changbin
@ 2018-03-27  3:02       ` Alexei Starovoitov
  2018-03-27  3:06         ` Du, Changbin
  0 siblings, 1 reply; 14+ messages in thread
From: Alexei Starovoitov @ 2018-03-27  3:02 UTC (permalink / raw)
  To: Du, Changbin
  Cc: shuah, linux-kselftest, linux-kernel, Daniel Borkmann, netdev

On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> > On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> > > Signed-off-by: Changbin Du <changbin.du@intel.com>
> > > ---
> > >  tools/testing/selftests/bpf/Makefile | 5 +++--
> > >  1 file changed, 3 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> > > index 5c43c18..dc0fdc8 100644
> > > --- a/tools/testing/selftests/bpf/Makefile
> > > +++ b/tools/testing/selftests/bpf/Makefile
> > > @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> > >    GENFLAGS := -DHAVE_GENHDR
> > >  endif
> > >  
> > > -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> > > +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> > > +	  -I../../../include -I../../../../usr/include
> > >  LDLIBS += -lcap -lelf -lrt -lpthread
> > >  
> > >  # Order correspond to 'make run_tests' order
> > > @@ -62,7 +63,7 @@ else
> > >    CPU ?= generic
> > >  endif
> > >  
> > > -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> > > +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> > >  	      -Wno-compare-distinct-pointer-types
> > 
> > Nack.
> > I suspect that will break the build for everyone else who's doing it in the directory
> > itself instead of the outer one.
> >
> 
> This one? But I didn't see any problem.

because the build was lucky and additional path ../../../../usr/include didn't point
to a valid dir?
Please test with in-source and out-of-source builds.


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  3:02       ` Alexei Starovoitov
@ 2018-03-27  3:06         ` Du, Changbin
  2018-03-27  8:52           ` Daniel Borkmann
  0 siblings, 1 reply; 14+ messages in thread
From: Du, Changbin @ 2018-03-27  3:06 UTC (permalink / raw)
  To: Alexei Starovoitov
  Cc: Du, Changbin, shuah, linux-kselftest, linux-kernel,
	Daniel Borkmann, netdev

On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote:
> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
> > On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> > > On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> > > > Signed-off-by: Changbin Du <changbin.du@intel.com>
> > > > ---
> > > >  tools/testing/selftests/bpf/Makefile | 5 +++--
> > > >  1 file changed, 3 insertions(+), 2 deletions(-)
> > > > 
> > > > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> > > > index 5c43c18..dc0fdc8 100644
> > > > --- a/tools/testing/selftests/bpf/Makefile
> > > > +++ b/tools/testing/selftests/bpf/Makefile
> > > > @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> > > >    GENFLAGS := -DHAVE_GENHDR
> > > >  endif
> > > >  
> > > > -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> > > > +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> > > > +	  -I../../../include -I../../../../usr/include
> > > >  LDLIBS += -lcap -lelf -lrt -lpthread
> > > >  
> > > >  # Order correspond to 'make run_tests' order
> > > > @@ -62,7 +63,7 @@ else
> > > >    CPU ?= generic
> > > >  endif
> > > >  
> > > > -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> > > > +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> > > >  	      -Wno-compare-distinct-pointer-types
> > > 
> > > Nack.
> > > I suspect that will break the build for everyone else who's doing it in the directory
> > > itself instead of the outer one.
> > >
> > 
> > This one? But I didn't see any problem.
> 
> because the build was lucky and additional path ../../../../usr/include didn't point
> to a valid dir?
I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid.

> Please test with in-source and out-of-source builds.
> 
agree.

-- 
Thanks,
Changbin Du

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  3:06         ` Du, Changbin
@ 2018-03-27  8:52           ` Daniel Borkmann
  2018-03-27  9:00             ` Du, Changbin
  0 siblings, 1 reply; 14+ messages in thread
From: Daniel Borkmann @ 2018-03-27  8:52 UTC (permalink / raw)
  To: Du, Changbin, Alexei Starovoitov
  Cc: shuah, linux-kselftest, linux-kernel, netdev

On 03/27/2018 05:06 AM, Du, Changbin wrote:
> On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote:
>> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
>>> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
>>>> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
>>>>> Signed-off-by: Changbin Du <changbin.du@intel.com>
>>>>> ---
>>>>>  tools/testing/selftests/bpf/Makefile | 5 +++--
>>>>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>>>>
>>>>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
>>>>> index 5c43c18..dc0fdc8 100644
>>>>> --- a/tools/testing/selftests/bpf/Makefile
>>>>> +++ b/tools/testing/selftests/bpf/Makefile
>>>>> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
>>>>>    GENFLAGS := -DHAVE_GENHDR
>>>>>  endif
>>>>>  
>>>>> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
>>>>> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
>>>>> +	  -I../../../include -I../../../../usr/include
>>>>>  LDLIBS += -lcap -lelf -lrt -lpthread
>>>>>  
>>>>>  # Order correspond to 'make run_tests' order
>>>>> @@ -62,7 +63,7 @@ else
>>>>>    CPU ?= generic
>>>>>  endif
>>>>>  
>>>>> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
>>>>> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
>>>>>  	      -Wno-compare-distinct-pointer-types
>>>>
>>>> Nack.
>>>> I suspect that will break the build for everyone else who's doing it in the directory
>>>> itself instead of the outer one.
>>>
>>> This one? But I didn't see any problem.
>>
>> because the build was lucky and additional path ../../../../usr/include didn't point
>> to a valid dir?

Agree.

> I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid.

The problem is that this suddenly requires users to do a 'make headers_install' in
order to populate usr/include/ directory in the first place. While it's annoying
enough for BPF samples where this is needed, I absolutely don't want to introduce
this for BPF kselftests. It's the wrong approach. Besides, in tools infra, there is
a tools/arch/*/include/uapi/asm/bitsperlong.h header copy already, so we really need
to use that instead. Please adapt your patch accordingly and respin. Please also Cc
us and netdev@vger.kernel.org for BPF kselftests changes.

Thanks,
Daniel

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  8:52           ` Daniel Borkmann
@ 2018-03-27  9:00             ` Du, Changbin
  2018-03-27  9:52               ` Daniel Borkmann
  0 siblings, 1 reply; 14+ messages in thread
From: Du, Changbin @ 2018-03-27  9:00 UTC (permalink / raw)
  To: Daniel Borkmann
  Cc: Du, Changbin, Alexei Starovoitov, shuah, linux-kselftest,
	linux-kernel, netdev

On Tue, Mar 27, 2018 at 10:52:57AM +0200, Daniel Borkmann wrote:
> On 03/27/2018 05:06 AM, Du, Changbin wrote:
> > On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote:
> >> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
> >>> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> >>>> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> >>>>> Signed-off-by: Changbin Du <changbin.du@intel.com>
> >>>>> ---
> >>>>>  tools/testing/selftests/bpf/Makefile | 5 +++--
> >>>>>  1 file changed, 3 insertions(+), 2 deletions(-)
> >>>>>
> >>>>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> >>>>> index 5c43c18..dc0fdc8 100644
> >>>>> --- a/tools/testing/selftests/bpf/Makefile
> >>>>> +++ b/tools/testing/selftests/bpf/Makefile
> >>>>> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> >>>>>    GENFLAGS := -DHAVE_GENHDR
> >>>>>  endif
> >>>>>  
> >>>>> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> >>>>> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> >>>>> +	  -I../../../include -I../../../../usr/include
> >>>>>  LDLIBS += -lcap -lelf -lrt -lpthread
> >>>>>  
> >>>>>  # Order correspond to 'make run_tests' order
> >>>>> @@ -62,7 +63,7 @@ else
> >>>>>    CPU ?= generic
> >>>>>  endif
> >>>>>  
> >>>>> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> >>>>> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> >>>>>  	      -Wno-compare-distinct-pointer-types
> >>>>
> >>>> Nack.
> >>>> I suspect that will break the build for everyone else who's doing it in the directory
> >>>> itself instead of the outer one.
> >>>
> >>> This one? But I didn't see any problem.
> >>
> >> because the build was lucky and additional path ../../../../usr/include didn't point
> >> to a valid dir?
> 
> Agree.
> 
> > I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid.
> 
> The problem is that this suddenly requires users to do a 'make headers_install' in
> order to populate usr/include/ directory in the first place. While it's annoying
> enough for BPF samples where this is needed, I absolutely don't want to introduce
> this for BPF kselftests. It's the wrong approach. Besides, in tools infra, there is
> a tools/arch/*/include/uapi/asm/bitsperlong.h header copy already, so we really need
> to use that instead. Please adapt your patch accordingly and respin. Please also Cc
> us and netdev@vger.kernel.org for BPF kselftests changes.
> 
> Thanks,
> Daniel
Thanks for the explanation. So we expect that tools/arch/*/include is in the searching list, right?
The corrent makefile seems not. How do you get this built?

changbin@gvt-dell-host:~/work/linux/tools/testing/selftests/bpf$ make -p
[...]
clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_access.o
In file included from test_pkt_access.c:9:
In file included from ../../../include/uapi/linux/bpf.h:11:
In file included from ./include/uapi/linux/types.h:5:
/usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
#include <asm/bitsperlong.h>


-- 
Thanks,
Changbin Du

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  9:00             ` Du, Changbin
@ 2018-03-27  9:52               ` Daniel Borkmann
  2018-03-27 10:19                 ` Du, Changbin
  0 siblings, 1 reply; 14+ messages in thread
From: Daniel Borkmann @ 2018-03-27  9:52 UTC (permalink / raw)
  To: Du, Changbin
  Cc: Alexei Starovoitov, shuah, linux-kselftest, linux-kernel, netdev

On 03/27/2018 11:00 AM, Du, Changbin wrote:
> On Tue, Mar 27, 2018 at 10:52:57AM +0200, Daniel Borkmann wrote:
>> On 03/27/2018 05:06 AM, Du, Changbin wrote:
>>> On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote:
>>>> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
>>>>> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
>>>>>> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
>>>>>>> Signed-off-by: Changbin Du <changbin.du@intel.com>
>>>>>>> ---
>>>>>>>  tools/testing/selftests/bpf/Makefile | 5 +++--
>>>>>>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>>>>>>
>>>>>>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
>>>>>>> index 5c43c18..dc0fdc8 100644
>>>>>>> --- a/tools/testing/selftests/bpf/Makefile
>>>>>>> +++ b/tools/testing/selftests/bpf/Makefile
>>>>>>> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
>>>>>>>    GENFLAGS := -DHAVE_GENHDR
>>>>>>>  endif
>>>>>>>  
>>>>>>> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
>>>>>>> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
>>>>>>> +	  -I../../../include -I../../../../usr/include
>>>>>>>  LDLIBS += -lcap -lelf -lrt -lpthread
>>>>>>>  
>>>>>>>  # Order correspond to 'make run_tests' order
>>>>>>> @@ -62,7 +63,7 @@ else
>>>>>>>    CPU ?= generic
>>>>>>>  endif
>>>>>>>  
>>>>>>> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
>>>>>>> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
>>>>>>>  	      -Wno-compare-distinct-pointer-types
>>>>>>
>>>>>> Nack.
>>>>>> I suspect that will break the build for everyone else who's doing it in the directory
>>>>>> itself instead of the outer one.
>>>>>
>>>>> This one? But I didn't see any problem.
>>>>
>>>> because the build was lucky and additional path ../../../../usr/include didn't point
>>>> to a valid dir?
>>
>> Agree.
>>
>>> I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid.
>>
>> The problem is that this suddenly requires users to do a 'make headers_install' in
>> order to populate usr/include/ directory in the first place. While it's annoying
>> enough for BPF samples where this is needed, I absolutely don't want to introduce
>> this for BPF kselftests. It's the wrong approach. Besides, in tools infra, there is
>> a tools/arch/*/include/uapi/asm/bitsperlong.h header copy already, so we really need
>> to use that instead. Please adapt your patch accordingly and respin. Please also Cc
>> us and netdev@vger.kernel.org for BPF kselftests changes.
>>
> Thanks for the explanation. So we expect that tools/arch/*/include is in the searching list, right?
> The corrent makefile seems not. How do you get this built?

E.g. take a look at tools/include/asm/barrier.h or tools/include/uapi/asm/bpf_perf_event.h
just to name two examples. We'd need something similar to this which then points to the
arch specific includes.

Thanks,
Daniel

> changbin@gvt-dell-host:~/work/linux/tools/testing/selftests/bpf$ make -p
> [...]
> clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
>          -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
> llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_access.o
> In file included from test_pkt_access.c:9:
> In file included from ../../../include/uapi/linux/bpf.h:11:
> In file included from ./include/uapi/linux/types.h:5:
> /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> #include <asm/bitsperlong.h>
> 
> 


^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-27  9:52               ` Daniel Borkmann
@ 2018-03-27 10:19                 ` Du, Changbin
  0 siblings, 0 replies; 14+ messages in thread
From: Du, Changbin @ 2018-03-27 10:19 UTC (permalink / raw)
  To: Daniel Borkmann
  Cc: Du, Changbin, Alexei Starovoitov, shuah, linux-kselftest,
	linux-kernel, netdev

On Tue, Mar 27, 2018 at 11:52:27AM +0200, Daniel Borkmann wrote:
> On 03/27/2018 11:00 AM, Du, Changbin wrote:
> > On Tue, Mar 27, 2018 at 10:52:57AM +0200, Daniel Borkmann wrote:
> >> On 03/27/2018 05:06 AM, Du, Changbin wrote:
> >>> On Mon, Mar 26, 2018 at 08:02:30PM -0700, Alexei Starovoitov wrote:
> >>>> On Tue, Mar 27, 2018 at 10:20:10AM +0800, Du, Changbin wrote:
> >>>>> On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> >>>>>> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> >>>>>>> Signed-off-by: Changbin Du <changbin.du@intel.com>
> >>>>>>> ---
> >>>>>>>  tools/testing/selftests/bpf/Makefile | 5 +++--
> >>>>>>>  1 file changed, 3 insertions(+), 2 deletions(-)
> >>>>>>>
> >>>>>>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> >>>>>>> index 5c43c18..dc0fdc8 100644
> >>>>>>> --- a/tools/testing/selftests/bpf/Makefile
> >>>>>>> +++ b/tools/testing/selftests/bpf/Makefile
> >>>>>>> @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> >>>>>>>    GENFLAGS := -DHAVE_GENHDR
> >>>>>>>  endif
> >>>>>>>  
> >>>>>>> -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> >>>>>>> +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> >>>>>>> +	  -I../../../include -I../../../../usr/include
> >>>>>>>  LDLIBS += -lcap -lelf -lrt -lpthread
> >>>>>>>  
> >>>>>>>  # Order correspond to 'make run_tests' order
> >>>>>>> @@ -62,7 +63,7 @@ else
> >>>>>>>    CPU ?= generic
> >>>>>>>  endif
> >>>>>>>  
> >>>>>>> -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> >>>>>>> +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> >>>>>>>  	      -Wno-compare-distinct-pointer-types
> >>>>>>
> >>>>>> Nack.
> >>>>>> I suspect that will break the build for everyone else who's doing it in the directory
> >>>>>> itself instead of the outer one.
> >>>>>
> >>>>> This one? But I didn't see any problem.
> >>>>
> >>>> because the build was lucky and additional path ../../../../usr/include didn't point
> >>>> to a valid dir?
> >>
> >> Agree.
> >>
> >>> I am sorry but I don't understand why you mean *lucky*. Of cause, the path is valid.
> >>
> >> The problem is that this suddenly requires users to do a 'make headers_install' in
> >> order to populate usr/include/ directory in the first place. While it's annoying
> >> enough for BPF samples where this is needed, I absolutely don't want to introduce
> >> this for BPF kselftests. It's the wrong approach. Besides, in tools infra, there is
> >> a tools/arch/*/include/uapi/asm/bitsperlong.h header copy already, so we really need
> >> to use that instead. Please adapt your patch accordingly and respin. Please also Cc
> >> us and netdev@vger.kernel.org for BPF kselftests changes.
> >>
> > Thanks for the explanation. So we expect that tools/arch/*/include is in the searching list, right?
> > The corrent makefile seems not. How do you get this built?
> 
> E.g. take a look at tools/include/asm/barrier.h or tools/include/uapi/asm/bpf_perf_event.h
> just to name two examples. We'd need something similar to this which then points to the
> arch specific includes.
> 
> Thanks,
> Daniel
>
ok, I see. But I am going to skip this fix this time. Because one get fixed, another appears.
IMHO, It doesn't sound like a good idea to sync all these files manually. We should have
better solution I think.

clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
         -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_access.o
In file included from test_pkt_access.c:12:
/usr/include/linux/ip.h:20:10: fatal error: 'asm/byteorder.h' file not found
#include <asm/byteorder.h>

 
> > changbin@gvt-dell-host:~/work/linux/tools/testing/selftests/bpf$ make -p
> > [...]
> > clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> >          -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
> > llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf/test_pkt_access.o
> > In file included from test_pkt_access.c:9:
> > In file included from ../../../include/uapi/linux/bpf.h:11:
> > In file included from ./include/uapi/linux/types.h:5:
> > /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> > #include <asm/bitsperlong.h>
> > 
> > 
> 

-- 
Thanks,
Changbin Du

^ permalink raw reply	[flat|nested] 14+ messages in thread

* Re: [PATCH 4/4] selftests/bpf: fix compiling errors
  2018-03-26 14:55   ` Alexei Starovoitov
  2018-03-27  2:20     ` Du, Changbin
@ 2018-03-27  2:33     ` Du, Changbin
  1 sibling, 0 replies; 14+ messages in thread
From: Du, Changbin @ 2018-03-27  2:33 UTC (permalink / raw)
  To: Alexei Starovoitov
  Cc: changbin.du, shuah, linux-kselftest, linux-kernel,
	Daniel Borkmann, netdev

Hi Starovoitov,

This one does have the issue you mentioned.
[PATCH 2/4] selftests/gpio: fix paths in Makefile

And can be fixed by:

--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0

+OUTPUT ?= $(shell pwd)
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh $(BINARIES)
 BINARIES := gpio-mockup-chardev
@@ -24,7 +25,7 @@ LDLIBS += -lmount -I/usr/include/libmount
 $(BINARIES): gpio-utils.o ../../../../usr/include/linux/gpio.h

 gpio-utils.o:
-       make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C ../../../gpio
+       make ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) OUTPUT=$(OUTPUT)/ -C ../../../gpio

 ../../../../usr/include/linux/gpio.h:


I will update it later.

On Mon, Mar 26, 2018 at 07:55:13AM -0700, Alexei Starovoitov wrote:
> On Mon, Mar 26, 2018 at 05:23:28PM +0800, changbin.du@intel.com wrote:
> > From: Changbin Du <changbin.du@intel.com>
> > 
> > This patch fixed below errors of missing head files.
> > 
> > tools/testing/selftests$ make
> > ...
> > clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> > 	 -O2 -target bpf -emit-llvm -c test_pkt_access.c -o - |      \
> > llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_pkt_access.o
> > In file included from test_pkt_access.c:9:
> > In file included from ../../../include/uapi/linux/bpf.h:11:
> > In file included from ./include/uapi/linux/types.h:5:
> > /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> >  #include <asm/bitsperlong.h>
> >          ^
> > 1 error generated.
> > clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> > 	 -O2 -target bpf -emit-llvm -c test_xdp.c -o - |      \
> > llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_xdp.o
> > In file included from test_xdp.c:9:
> > In file included from ../../../include/uapi/linux/bpf.h:11:
> > In file included from ./include/uapi/linux/types.h:5:
> > /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> >  #include <asm/bitsperlong.h>
> >          ^
> > 1 error generated.
> > clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> > 	 -O2 -target bpf -emit-llvm -c test_l4lb.c -o - |      \
> > llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_l4lb.o
> > In file included from test_l4lb.c:10:
> > In file included from /usr/include/linux/pkt_cls.h:4:
> > In file included from ./include/uapi/linux/types.h:5:
> > /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> >  #include <asm/bitsperlong.h>
> >          ^
> > 1 error generated.
> > clang -I. -I./include/uapi -I../../../include/uapi -Wno-compare-distinct-pointer-types \
> > 	 -O2 -target bpf -emit-llvm -c test_tcp_estats.c -o - |      \
> > llc -march=bpf -mcpu=generic -filetype=obj -o /home/changbin/work/linux/tools/testing/selftests/bpf//test_tcp_estats.o
> > In file included from test_tcp_estats.c:35:
> > In file included from ../../../include/uapi/linux/bpf.h:11:
> > In file included from ./include/uapi/linux/types.h:5:
> > /usr/include/asm-generic/int-ll64.h:11:10: fatal error: 'asm/bitsperlong.h' file not found
> >  #include <asm/bitsperlong.h>
> > ...
> > 
> > Signed-off-by: Changbin Du <changbin.du@intel.com>
> > ---
> >  tools/testing/selftests/bpf/Makefile | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> > index 5c43c18..dc0fdc8 100644
> > --- a/tools/testing/selftests/bpf/Makefile
> > +++ b/tools/testing/selftests/bpf/Makefile
> > @@ -10,7 +10,8 @@ ifneq ($(wildcard $(GENHDR)),)
> >    GENFLAGS := -DHAVE_GENHDR
> >  endif
> >  
> > -CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
> > +CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) \
> > +	  -I../../../include -I../../../../usr/include
> >  LDLIBS += -lcap -lelf -lrt -lpthread
> >  
> >  # Order correspond to 'make run_tests' order
> > @@ -62,7 +63,7 @@ else
> >    CPU ?= generic
> >  endif
> >  
> > -CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
> > +CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi -I../../../../usr/include \
> >  	      -Wno-compare-distinct-pointer-types
> 
> Nack.
> I suspect that will break the build for everyone else who's doing it in the directory
> itself instead of the outer one.
> 

-- 
Thanks,
Changbin Du

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2018-03-27 10:28 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-26  9:23 [PATCH 0/4] selftests: fix compiling issues changbin.du
2018-03-26  9:23 ` [PATCH 1/4] selftests/Makefile: append a slash to env variable OUTPUT changbin.du
2018-03-26  9:23 ` [PATCH 2/4] selftests/gpio: fix paths in Makefile changbin.du
2018-03-26  9:23 ` [PATCH 3/4] kselftest: install sanitized kernel headers before compiling changbin.du
2018-03-26  9:23 ` [PATCH 4/4] selftests/bpf: fix compiling errors changbin.du
2018-03-26 14:55   ` Alexei Starovoitov
2018-03-27  2:20     ` Du, Changbin
2018-03-27  3:02       ` Alexei Starovoitov
2018-03-27  3:06         ` Du, Changbin
2018-03-27  8:52           ` Daniel Borkmann
2018-03-27  9:00             ` Du, Changbin
2018-03-27  9:52               ` Daniel Borkmann
2018-03-27 10:19                 ` Du, Changbin
2018-03-27  2:33     ` Du, Changbin

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