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* [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
@ 2019-01-16 17:43 Daniel Díaz
  2019-01-16 17:43 ` [PATCH 2/4] selftests: net: use LDLIBS instead of LDFLAGS Daniel Díaz
                   ` (3 more replies)
  0 siblings, 4 replies; 12+ messages in thread
From: Daniel Díaz @ 2019-01-16 17:43 UTC (permalink / raw)
  To: shuah
  Cc: Fathi Boudra, Denys Dmytriyenko,
	open list:KERNEL SELFTEST FRAMEWORK, open list

From: Fathi Boudra <fathi.boudra@linaro.org>

Relax CC assignment to allow to override CC in the top-level Makefile.

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
---
 tools/testing/selftests/lib.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 8b0f16409ed7..0f9c47eaaa6f 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -1,6 +1,6 @@
 # This mimics the top-level Makefile. We do it explicitly here so that this
 # Makefile can operate with or without the kbuild infrastructure.
-CC := $(CROSS_COMPILE)gcc
+CC ?= $(CROSS_COMPILE)gcc
 
 ifeq (0,$(MAKELEVEL))
 OUTPUT := $(shell pwd)
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH 2/4] selftests: net: use LDLIBS instead of LDFLAGS
  2019-01-16 17:43 [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile Daniel Díaz
@ 2019-01-16 17:43 ` Daniel Díaz
  2019-01-16 17:43 ` [PATCH 3/4] selftests: seccomp: " Daniel Díaz
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 12+ messages in thread
From: Daniel Díaz @ 2019-01-16 17:43 UTC (permalink / raw)
  To: shuah
  Cc: Fathi Boudra, David S. Miller, open list:NETWORKING [GENERAL],
	open list:KERNEL SELFTEST FRAMEWORK, open list

From: Fathi Boudra <fathi.boudra@linaro.org>

reuseport_bpf_numa fails to build due to undefined reference errors:

 aarch64-linaro-linux-gcc
 --sysroot=/build/tmp-rpb-glibc/sysroots/hikey -Wall
 -Wl,--no-as-needed -O2 -g -I../../../../usr/include/  -Wl,-O1
 -Wl,--hash-style=gnu -Wl,--as-needed -lnuma  reuseport_bpf_numa.c
 -o
 /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa
 /tmp/ccfUuExT.o: In function `send_from_node':
 /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:138:
 undefined reference to `numa_run_on_node'
 /tmp/ccfUuExT.o: In function `main':
 /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:230:
 undefined reference to `numa_available'
 /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/net/reuseport_bpf_numa.c:233:
 undefined reference to `numa_max_node'

It's GNU Make and linker specific.

The default Makefile rule looks like:

$(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)

When linking is done by gcc itself, no issue, but when it needs to be passed
to proper ld, only LDLIBS follows and then ld cannot know what libs to link
with.

More detail:
https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html

LDFLAGS
Extra flags to give to compilers when they are supposed to invoke the linker,
‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
instead.

LDLIBS
Library flags or names given to compilers when they are supposed to invoke the
linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
variable.

https://lkml.org/lkml/2010/2/10/362

tools/perf: libraries must come after objects

Link order matters, use LDLIBS instead of LDFLAGS to properly link against
libnuma.

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
---
 tools/testing/selftests/net/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index f8f3e90700c0..1e6d14d2825c 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -21,6 +21,6 @@ TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict tls
 KSFT_KHDR_INSTALL := 1
 include ../lib.mk
 
-$(OUTPUT)/reuseport_bpf_numa: LDFLAGS += -lnuma
+$(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma
 $(OUTPUT)/tcp_mmap: LDFLAGS += -lpthread
 $(OUTPUT)/tcp_inq: LDFLAGS += -lpthread
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH 3/4] selftests: seccomp: use LDLIBS instead of LDFLAGS
  2019-01-16 17:43 [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile Daniel Díaz
  2019-01-16 17:43 ` [PATCH 2/4] selftests: net: use LDLIBS instead of LDFLAGS Daniel Díaz
@ 2019-01-16 17:43 ` Daniel Díaz
  2019-01-16 18:13   ` Kees Cook
  2019-01-16 17:43 ` [PATCH 4/4] selftests: timers: " Daniel Díaz
  2019-01-16 21:56 ` [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile shuah
  3 siblings, 1 reply; 12+ messages in thread
From: Daniel Díaz @ 2019-01-16 17:43 UTC (permalink / raw)
  To: shuah
  Cc: Fathi Boudra, Kees Cook, Andy Lutomirski, Will Drewry,
	open list:KERNEL SELFTEST FRAMEWORK, open list

From: Fathi Boudra <fathi.boudra@linaro.org>

seccomp_bpf fails to build due to undefined reference errors:

 aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey
 -O2 -pipe -g -feliminate-unused-debug-types -Wl,-no-as-needed -Wall
 -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lpthread seccomp_bpf.c -o
 /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf
 /tmp/ccrlR3MW.o: In function `tsync_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
 /tmp/ccrlR3MW.o: In function `TSYNC_setup':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1863: undefined reference to `sem_init'
 /tmp/ccrlR3MW.o: In function `TSYNC_teardown':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1904: undefined reference to `sem_destroy'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1897: undefined reference to `pthread_kill'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1898: undefined reference to `pthread_cancel'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1899: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_siblings_fail_prctl':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1978: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1990: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1992: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_ancestor':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2016: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2032: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2034: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_two_sibling_want_nnp':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2046: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2058: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2060: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_no_filter':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2073: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2098: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2100: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_one_divergence':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2125: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2143: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2145: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
 /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_not_under_filter':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2169: undefined reference to `sem_wait'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2202: undefined reference to `pthread_join'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2227: undefined reference to `pthread_join'
 /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'

It's GNU Make and linker specific.

The default Makefile rule looks like:

$(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)

When linking is done by gcc itself, no issue, but when it needs to be passed
to proper ld, only LDLIBS follows and then ld cannot know what libs to link
with.

More detail:
https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html

LDFLAGS
Extra flags to give to compilers when they are supposed to invoke the linker,
‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
instead.

LDLIBS
Library flags or names given to compilers when they are supposed to invoke the
linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
variable.

https://lkml.org/lkml/2010/2/10/362

tools/perf: libraries must come after objects

Link order matters, use LDLIBS instead of LDFLAGS to properly link against
libpthread.

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
---
 tools/testing/selftests/seccomp/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index fce7f4ce0692..1760b3e39730 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -9,7 +9,7 @@ BINARIES := seccomp_bpf seccomp_benchmark
 CFLAGS += -Wl,-no-as-needed -Wall
 
 seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
-	$(CC) $(CFLAGS) $(LDFLAGS) -lpthread $< -o $@
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -lpthread -o $@
 
 TEST_PROGS += $(BINARIES)
 EXTRA_CLEAN := $(BINARIES)
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* [PATCH 4/4] selftests: timers: use LDLIBS instead of LDFLAGS
  2019-01-16 17:43 [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile Daniel Díaz
  2019-01-16 17:43 ` [PATCH 2/4] selftests: net: use LDLIBS instead of LDFLAGS Daniel Díaz
  2019-01-16 17:43 ` [PATCH 3/4] selftests: seccomp: " Daniel Díaz
@ 2019-01-16 17:43 ` Daniel Díaz
  2019-01-16 21:56 ` [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile shuah
  3 siblings, 0 replies; 12+ messages in thread
From: Daniel Díaz @ 2019-01-16 17:43 UTC (permalink / raw)
  To: shuah
  Cc: Fathi Boudra, Denys Dmytriyenko, John Stultz, Thomas Gleixner,
	Stephen Boyd, open list:TIMEKEEPING, CLOCKSOURCE CORE, NTP,
	ALARMTIMER, open list:KERNEL SELFTEST FRAMEWORK

From: Fathi Boudra <fathi.boudra@linaro.org>

posix_timers fails to build due to undefined reference errors:

 aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey
 -O2 -pipe -g -feliminate-unused-debug-types -O3 -Wl,-no-as-needed -Wall
 -DKTEST  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lrt -lpthread
 posix_timers.c
 -o /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers
 /tmp/cc1FTZzT.o: In function `check_timer_create':
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:157:
 undefined reference to `timer_create'
 /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:170:
 undefined reference to `timer_settime'
 collect2: error: ld returned 1 exit status

It's GNU Make and linker specific.

The default Makefile rule looks like:

$(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)

When linking is done by gcc itself, no issue, but when it needs to be passed
to proper ld, only LDLIBS follows and then ld cannot know what libs to link
with.

More detail:
https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html

LDFLAGS
Extra flags to give to compilers when they are supposed to invoke the linker,
‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
instead.

LDLIBS
Library flags or names given to compilers when they are supposed to invoke the
linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
variable.

https://lkml.org/lkml/2010/2/10/362

tools/perf: libraries must come after objects

Link order matters, use LDLIBS instead of LDFLAGS to properly link against
libpthread.

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
---
 tools/testing/selftests/timers/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
index c02683cfb6c9..7656c7ce79d9 100644
--- a/tools/testing/selftests/timers/Makefile
+++ b/tools/testing/selftests/timers/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 CFLAGS += -O3 -Wl,-no-as-needed -Wall
-LDFLAGS += -lrt -lpthread -lm
+LDLIBS += -lrt -lpthread -lm
 
 # these are all "safe" tests that don't modify
 # system time or require escalated privileges
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH 3/4] selftests: seccomp: use LDLIBS instead of LDFLAGS
  2019-01-16 17:43 ` [PATCH 3/4] selftests: seccomp: " Daniel Díaz
@ 2019-01-16 18:13   ` Kees Cook
  2019-01-16 18:26     ` shuah
  0 siblings, 1 reply; 12+ messages in thread
From: Kees Cook @ 2019-01-16 18:13 UTC (permalink / raw)
  To: Daniel Díaz, Shuah Khan
  Cc: Fathi Boudra, Andy Lutomirski, Will Drewry,
	open list:KERNEL SELFTEST FRAMEWORK, open list

On Wed, Jan 16, 2019 at 9:44 AM Daniel Díaz <daniel.diaz@linaro.org> wrote:
>
> From: Fathi Boudra <fathi.boudra@linaro.org>
>
> seccomp_bpf fails to build due to undefined reference errors:
>
>  aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey
>  -O2 -pipe -g -feliminate-unused-debug-types -Wl,-no-as-needed -Wall
>  -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lpthread seccomp_bpf.c -o
>  /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf
>  /tmp/ccrlR3MW.o: In function `tsync_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
>  /tmp/ccrlR3MW.o: In function `TSYNC_setup':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1863: undefined reference to `sem_init'
>  /tmp/ccrlR3MW.o: In function `TSYNC_teardown':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1904: undefined reference to `sem_destroy'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1897: undefined reference to `pthread_kill'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1898: undefined reference to `pthread_cancel'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1899: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_siblings_fail_prctl':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1978: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1990: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1992: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_ancestor':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2016: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2032: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2034: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_two_sibling_want_nnp':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2046: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2058: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2060: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_no_filter':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2073: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2098: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2100: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_one_divergence':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2125: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2143: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2145: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>  /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_not_under_filter':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2169: undefined reference to `sem_wait'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2202: undefined reference to `pthread_join'
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2227: undefined reference to `pthread_join'
>  /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>  /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>
> It's GNU Make and linker specific.
>
> The default Makefile rule looks like:
>
> $(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)
>
> When linking is done by gcc itself, no issue, but when it needs to be passed
> to proper ld, only LDLIBS follows and then ld cannot know what libs to link
> with.
>
> More detail:
> https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
>
> LDFLAGS
> Extra flags to give to compilers when they are supposed to invoke the linker,
> ‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
> instead.
>
> LDLIBS
> Library flags or names given to compilers when they are supposed to invoke the
> linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
> LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
> variable.
>
> https://lkml.org/lkml/2010/2/10/362
>
> tools/perf: libraries must come after objects
>
> Link order matters, use LDLIBS instead of LDFLAGS to properly link against
> libpthread.
>
> Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>

Acked-by: Kees Cook <keescook@chromium.org>

Shuah, can you take this?

-Kees

> ---
>  tools/testing/selftests/seccomp/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
> index fce7f4ce0692..1760b3e39730 100644
> --- a/tools/testing/selftests/seccomp/Makefile
> +++ b/tools/testing/selftests/seccomp/Makefile
> @@ -9,7 +9,7 @@ BINARIES := seccomp_bpf seccomp_benchmark
>  CFLAGS += -Wl,-no-as-needed -Wall
>
>  seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
> -       $(CC) $(CFLAGS) $(LDFLAGS) -lpthread $< -o $@
> +       $(CC) $(CFLAGS) $(LDFLAGS) $< -lpthread -o $@
>
>  TEST_PROGS += $(BINARIES)
>  EXTRA_CLEAN := $(BINARIES)
> --
> 2.17.1
>


-- 
Kees Cook

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 3/4] selftests: seccomp: use LDLIBS instead of LDFLAGS
  2019-01-16 18:13   ` Kees Cook
@ 2019-01-16 18:26     ` shuah
  0 siblings, 0 replies; 12+ messages in thread
From: shuah @ 2019-01-16 18:26 UTC (permalink / raw)
  To: Kees Cook, Daniel Díaz
  Cc: Fathi Boudra, Andy Lutomirski, Will Drewry,
	open list:KERNEL SELFTEST FRAMEWORK, open list, shuah

On 1/16/19 11:13 AM, Kees Cook wrote:
> On Wed, Jan 16, 2019 at 9:44 AM Daniel Díaz <daniel.diaz@linaro.org> wrote:
>>
>> From: Fathi Boudra <fathi.boudra@linaro.org>
>>
>> seccomp_bpf fails to build due to undefined reference errors:
>>
>>   aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey
>>   -O2 -pipe -g -feliminate-unused-debug-types -Wl,-no-as-needed -Wall
>>   -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lpthread seccomp_bpf.c -o
>>   /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf
>>   /tmp/ccrlR3MW.o: In function `tsync_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1920: undefined reference to `sem_post'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_setup':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1863: undefined reference to `sem_init'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_teardown':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1904: undefined reference to `sem_destroy'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1897: undefined reference to `pthread_kill'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1898: undefined reference to `pthread_cancel'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1899: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_siblings_fail_prctl':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1978: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1990: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1992: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_ancestor':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2016: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2032: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2034: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_two_sibling_want_nnp':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2046: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2058: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2060: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_no_filter':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2073: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2098: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2100: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_with_one_divergence':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2125: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2143: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2145: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>   /tmp/ccrlR3MW.o: In function `TSYNC_two_siblings_not_under_filter':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2169: undefined reference to `sem_wait'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2202: undefined reference to `pthread_join'
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:2227: undefined reference to `pthread_join'
>>   /tmp/ccrlR3MW.o: In function `tsync_start_sibling':
>>   /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/seccomp/seccomp_bpf.c:1941: undefined reference to `pthread_create'
>>
>> It's GNU Make and linker specific.
>>
>> The default Makefile rule looks like:
>>
>> $(CC) $(CFLAGS) $(LDFLAGS) $@ $^ $(LDLIBS)
>>
>> When linking is done by gcc itself, no issue, but when it needs to be passed
>> to proper ld, only LDLIBS follows and then ld cannot know what libs to link
>> with.
>>
>> More detail:
>> https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
>>
>> LDFLAGS
>> Extra flags to give to compilers when they are supposed to invoke the linker,
>> ‘ld’, such as -L. Libraries (-lfoo) should be added to the LDLIBS variable
>> instead.
>>
>> LDLIBS
>> Library flags or names given to compilers when they are supposed to invoke the
>> linker, ‘ld’. LOADLIBES is a deprecated (but still supported) alternative to
>> LDLIBS. Non-library linker flags, such as -L, should go in the LDFLAGS
>> variable.
>>
>> https://lkml.org/lkml/2010/2/10/362
>>
>> tools/perf: libraries must come after objects
>>
>> Link order matters, use LDLIBS instead of LDFLAGS to properly link against
>> libpthread.
>>
>> Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
> 

Thanks for the patch.

> Acked-by: Kees Cook <keescook@chromium.org>
> 
> Shuah, can you take this?
> 

Thanks for Ack. I will get this in for 5.0-rc3 or rc4.

thanks,
-- Shuah

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-16 17:43 [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile Daniel Díaz
                   ` (2 preceding siblings ...)
  2019-01-16 17:43 ` [PATCH 4/4] selftests: timers: " Daniel Díaz
@ 2019-01-16 21:56 ` shuah
  2019-01-18 17:54   ` Daniel Díaz
  3 siblings, 1 reply; 12+ messages in thread
From: shuah @ 2019-01-16 21:56 UTC (permalink / raw)
  To: Daniel Díaz
  Cc: Fathi Boudra, Denys Dmytriyenko,
	open list:KERNEL SELFTEST FRAMEWORK, open list, shuah

On 1/16/19 10:43 AM, Daniel Díaz wrote:
> From: Fathi Boudra <fathi.boudra@linaro.org>
> 
> Relax CC assignment to allow to override CC in the top-level Makefile.
> 
> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> ---
>   tools/testing/selftests/lib.mk | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> index 8b0f16409ed7..0f9c47eaaa6f 100644
> --- a/tools/testing/selftests/lib.mk
> +++ b/tools/testing/selftests/lib.mk
> @@ -1,6 +1,6 @@
>   # This mimics the top-level Makefile. We do it explicitly here so that this
>   # Makefile can operate with or without the kbuild infrastructure.
> -CC := $(CROSS_COMPILE)gcc
> +CC ?= $(CROSS_COMPILE)gcc
>   
>   ifeq (0,$(MAKELEVEL))
>   OUTPUT := $(shell pwd)
> 

What problem does this fix?

thanks,
-- Shuah

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-16 21:56 ` [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile shuah
@ 2019-01-18 17:54   ` Daniel Díaz
  2019-01-28 15:01     ` shuah
  0 siblings, 1 reply; 12+ messages in thread
From: Daniel Díaz @ 2019-01-18 17:54 UTC (permalink / raw)
  To: shuah
  Cc: Fathi Boudra, Denys Dmytriyenko,
	open list:KERNEL SELFTEST FRAMEWORK, open list

Hello!

On Wed, 16 Jan 2019 at 15:56, shuah <shuah@kernel.org> wrote:
>
> On 1/16/19 10:43 AM, Daniel Díaz wrote:
> > From: Fathi Boudra <fathi.boudra@linaro.org>
> >
> > Relax CC assignment to allow to override CC in the top-level Makefile.
> >
> > Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> > ---
> >   tools/testing/selftests/lib.mk | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
> > index 8b0f16409ed7..0f9c47eaaa6f 100644
> > --- a/tools/testing/selftests/lib.mk
> > +++ b/tools/testing/selftests/lib.mk
> > @@ -1,6 +1,6 @@
> >   # This mimics the top-level Makefile. We do it explicitly here so that this
> >   # Makefile can operate with or without the kbuild infrastructure.
> > -CC := $(CROSS_COMPILE)gcc
> > +CC ?= $(CROSS_COMPILE)gcc
> >
> >   ifeq (0,$(MAKELEVEL))
> >   OUTPUT := $(shell pwd)
> >
>
> What problem does this fix?

Sometimes "$(CROSS_COMPILE)gcc" is not enough: For instance, we need
to pass --sysroot to CC:
  CC="aarch64-linaro-linux-gcc
--sysroot=/oe/build/tmp-lkft-glibc/work/hikey-linaro-linux/kselftests-mainline/4.19-r0/recipe-sysroot"

Greetings!

Daniel Díaz
daniel.diaz@linaro.org

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-18 17:54   ` Daniel Díaz
@ 2019-01-28 15:01     ` shuah
  2019-01-28 15:42       ` Denys Dmytriyenko
  0 siblings, 1 reply; 12+ messages in thread
From: shuah @ 2019-01-28 15:01 UTC (permalink / raw)
  To: Daniel Díaz
  Cc: Fathi Boudra, Denys Dmytriyenko,
	open list:KERNEL SELFTEST FRAMEWORK, open list, shuah

Hi Daniel,

On 1/18/19 10:54 AM, Daniel Díaz wrote:
> Hello!
> 
> On Wed, 16 Jan 2019 at 15:56, shuah <shuah@kernel.org> wrote:
>>
>> On 1/16/19 10:43 AM, Daniel Díaz wrote:
>>> From: Fathi Boudra <fathi.boudra@linaro.org>
>>>
>>> Relax CC assignment to allow to override CC in the top-level Makefile.
>>>
>>> Signed-off-by: Denys Dmytriyenko <denys@ti.com>

Author signed-off missing on this patch. I am dropping this patch
from rc5 for now. Please fix it resend the patch. In the future,
I would like to see that author sends the patch.

thanks,
-- Shuah


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-28 15:01     ` shuah
@ 2019-01-28 15:42       ` Denys Dmytriyenko
  2019-01-28 16:28         ` shuah
  0 siblings, 1 reply; 12+ messages in thread
From: Denys Dmytriyenko @ 2019-01-28 15:42 UTC (permalink / raw)
  To: shuah
  Cc: Daniel Díaz, Fathi Boudra,
	open list:KERNEL SELFTEST FRAMEWORK, open list

On Mon, Jan 28, 2019 at 08:01:15AM -0700, shuah wrote:
> Hi Daniel,
> 
> On 1/18/19 10:54 AM, Daniel Díaz wrote:
> >Hello!
> >
> >On Wed, 16 Jan 2019 at 15:56, shuah <shuah@kernel.org> wrote:
> >>
> >>On 1/16/19 10:43 AM, Daniel Díaz wrote:
> >>>From: Fathi Boudra <fathi.boudra@linaro.org>
> >>>
> >>>Relax CC assignment to allow to override CC in the top-level Makefile.
> >>>
> >>>Signed-off-by: Denys Dmytriyenko <denys@ti.com>

^^^ I am the original author of the patch and this is my signed-off line.


> Author signed-off missing on this patch. I am dropping this patch
> from rc5 for now. Please fix it resend the patch. In the future,
> I would like to see that author sends the patch.

-- 
Denys

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-28 15:42       ` Denys Dmytriyenko
@ 2019-01-28 16:28         ` shuah
  2019-01-28 17:01           ` Daniel Díaz
  0 siblings, 1 reply; 12+ messages in thread
From: shuah @ 2019-01-28 16:28 UTC (permalink / raw)
  To: Denys Dmytriyenko
  Cc: Daniel Díaz, Fathi Boudra,
	open list:KERNEL SELFTEST FRAMEWORK, open list, shuah

On 1/28/19 8:42 AM, Denys Dmytriyenko wrote:
> On Mon, Jan 28, 2019 at 08:01:15AM -0700, shuah wrote:
>> Hi Daniel,
>>
>> On 1/18/19 10:54 AM, Daniel Díaz wrote:
>>> Hello!
>>>
>>> On Wed, 16 Jan 2019 at 15:56, shuah <shuah@kernel.org> wrote:
>>>>
>>>> On 1/16/19 10:43 AM, Daniel Díaz wrote:
>>>>> From: Fathi Boudra <fathi.boudra@linaro.org>

This is the problem. It says, it came from Fathi Boudra 
<fathi.boudra@linaro.org>


>>>>>
>>>>> Relax CC assignment to allow to override CC in the top-level Makefile.
>>>>>
>>>>> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> 
> ^^^ I am the original author of the patch and this is my signed-off line.
> 

thanks,
-- Shuah

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile
  2019-01-28 16:28         ` shuah
@ 2019-01-28 17:01           ` Daniel Díaz
  0 siblings, 0 replies; 12+ messages in thread
From: Daniel Díaz @ 2019-01-28 17:01 UTC (permalink / raw)
  To: Denys Dmytriyenko
  Cc: Fathi Boudra, open list:KERNEL SELFTEST FRAMEWORK, open list, shuah

Hello!

On Mon, 28 Jan 2019 at 10:28, shuah <shuah@kernel.org> wrote:
> On 1/28/19 8:42 AM, Denys Dmytriyenko wrote:
> > On Mon, Jan 28, 2019 at 08:01:15AM -0700, shuah wrote:
> >> Hi Daniel,
> >>
> >> On 1/18/19 10:54 AM, Daniel Díaz wrote:
> >>> Hello!
> >>>
> >>> On Wed, 16 Jan 2019 at 15:56, shuah <shuah@kernel.org> wrote:
> >>>>
> >>>> On 1/16/19 10:43 AM, Daniel Díaz wrote:
> >>>>> From: Fathi Boudra <fathi.boudra@linaro.org>
>
> This is the problem. It says, it came from Fathi Boudra
> <fathi.boudra@linaro.org>

Denys, apologies for sending this patch as Fathi's. In our Git
repository [1] he's marked as author, probably as it got copied from
repo to repo.

Would you mind sending this patch yourself?

Thanks and greetings!

Daniel Díaz
daniel.diaz@linaro.org

[1] https://github.com/96boards/meta-rpb/blob/master/recipes-overlayed/kselftests/files/0001-selftests-lib-allow-to-override-CC-in-the-top-level-Makefile.patch


> >>>>> Relax CC assignment to allow to override CC in the top-level Makefile.
> >>>>>
> >>>>> Signed-off-by: Denys Dmytriyenko <denys@ti.com>
> >
> > ^^^ I am the original author of the patch and this is my signed-off line.
> >
>
> thanks,
> -- Shuah

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2019-01-28 17:01 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-01-16 17:43 [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile Daniel Díaz
2019-01-16 17:43 ` [PATCH 2/4] selftests: net: use LDLIBS instead of LDFLAGS Daniel Díaz
2019-01-16 17:43 ` [PATCH 3/4] selftests: seccomp: " Daniel Díaz
2019-01-16 18:13   ` Kees Cook
2019-01-16 18:26     ` shuah
2019-01-16 17:43 ` [PATCH 4/4] selftests: timers: " Daniel Díaz
2019-01-16 21:56 ` [PATCH 1/4] selftests: lib: allow to override CC in the top-level Makefile shuah
2019-01-18 17:54   ` Daniel Díaz
2019-01-28 15:01     ` shuah
2019-01-28 15:42       ` Denys Dmytriyenko
2019-01-28 16:28         ` shuah
2019-01-28 17:01           ` Daniel Díaz

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