Re: [PATCH v3 bpf-next 09/14] samples: bpf: makefile: use own flags but not host when cross compile

From: Sergei Shtylyov
Date: Tue Sep 17 2019 - 06:14:14 EST


Hello!

On 16.09.2019 13:54, Ivan Khoronzhuk wrote:

While compile natively, the hosts cflags and ldflags are equal to ones

Compiling. Host's.

used from HOSTCFLAGS and HOSTLDFLAGS. When cross compiling it should
have own, used for target arch. While verification, for arm, arm64 and
x86_64 the following flags were used alsways:

-Wall
-O2
-fomit-frame-pointer
-Wmissing-prototypes
-Wstrict-prototypes

So, add them as they were verified and used before adding
Makefile.target, but anyway limit it only for cross compile options as
for host can be some configurations when another options can be used,
So, for host arch samples left all as is, it allows to avoid potential
option mistmatches for existent environments.

Mismatches.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
[...]

MBR, Sergei