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From: Viktor Malik <vmalik@redhat.com>
To: Eduard Zingerman <eddyz87@gmail.com>, bpf@vger.kernel.org
Cc: Andrii Nakryiko <andrii@kernel.org>,
	Mykola Lysenko <mykolal@fb.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
	Jiri Olsa <jolsa@kernel.org>, Shuah Khan <shuah@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Bill Wendling <morbo@google.com>,
	Justin Stitt <justinstitt@google.com>
Subject: Re: [PATCH bpf-next 1/3] selftests/bpf: Allow building with extra flags
Date: Thu, 17 Oct 2024 09:29:11 +0200	[thread overview]
Message-ID: <b0b80eda-c0be-4631-bc73-849918c903c5@redhat.com> (raw)
In-Reply-To: <7919c04f566896f293f6f6b3cc988bb6b5a5c95a.camel@gmail.com>

On 10/17/24 01:17, Eduard Zingerman wrote:
> On Tue, 2024-10-15 at 08:54 +0200, Viktor Malik wrote:
> 
> Tried this, seems to work as expected, but see below.
> 
> Tested-by: Eduard Zingerman <eddyz87@gmail.com>
> 
> [...]
> 
>> @@ -388,8 +394,8 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
>>  	   $(APIDIR)/linux/bpf.h					       \
>>  	   | $(BUILD_DIR)/libbpf
>>  	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
>> -		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS)'	       \
>> -		    EXTRA_LDFLAGS='$(SAN_LDFLAGS)'			       \
>> +		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \
>> +		    EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)'	       \
>>  		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
>>  
>>  ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
> 
> Note, that there is also the following code just below this hunk:
> 
> ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
> $(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
> 		$(APIDIR)/linux/bpf.h					       \
> 		| $(HOST_BUILD_DIR)/libbpf
> 	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \
> 		    EXTRA_CFLAGS='-g $(OPT_FLAGS)' ARCH= CROSS_COMPILE=	       \
>                     ^^^^^^^^^^^^
>                     needs an update?

Yes, good catch, I'll add it.

Thanks!

>                     
> 		    OUTPUT=$(HOST_BUILD_DIR)/libbpf/			       \
> 		    CC="$(HOSTCC)" LD="$(HOSTLD)"			       \
> 		    DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
> endif
> 
> 


  reply	other threads:[~2024-10-17  7:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-15  6:54 [PATCH bpf-next 0/3] selftests/bpf: Improve building with extra Viktor Malik
2024-10-15  6:54 ` [PATCH bpf-next 1/3] selftests/bpf: Allow building with extra flags Viktor Malik
2024-10-16 23:17   ` Eduard Zingerman
2024-10-17  7:29     ` Viktor Malik [this message]
2024-10-15  6:54 ` [PATCH bpf-next 2/3] bpftool: Prevent setting duplicate _GNU_SOURCE in Makefile Viktor Malik
2024-10-15 10:03   ` Quentin Monnet
2024-10-15 10:17     ` Viktor Malik
2024-10-16 20:34   ` Andrii Nakryiko
2024-10-17  6:08     ` Viktor Malik
2024-10-15  6:54 ` [PATCH bpf-next 3/3] selftests/bpf: Allow ignoring some flags for Clang builds Viktor Malik
2024-10-16 20:37   ` Andrii Nakryiko
2024-10-16 22:18     ` Eduard Zingerman
2024-10-17  8:34       ` Viktor Malik

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