diff mbox series

[v4,bpf-next,01/15] samples/bpf: fix HDR_PROBE "echo"

Message ID 20191009204134.26960-2-ivan.khoronzhuk@linaro.org
State Accepted
Commit cdd5b2d1fc86f8dda383d4f0b4ac9b533539e76a
Headers show
Series [v4,bpf-next,01/15] samples/bpf: fix HDR_PROBE "echo" | expand

Commit Message

Ivan Khoronzhuk Oct. 9, 2019, 8:41 p.m. UTC
echo should be replaced with echo -e to handle '\n' correctly, but
instead, replace it with printf as some systems can't handle echo -e.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>

---
 samples/bpf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.17.1

Comments

Andrii Nakryiko Oct. 9, 2019, 10:42 p.m. UTC | #1
On Wed, Oct 9, 2019 at 1:45 PM Ivan Khoronzhuk
<ivan.khoronzhuk@linaro.org> wrote:
>

> echo should be replaced with echo -e to handle '\n' correctly, but

> instead, replace it with printf as some systems can't handle echo -e.

>

> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>

> ---


Acked-by: Andrii Nakryiko <andriin@fb.com>


>  samples/bpf/Makefile | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

>

> diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile

> index a11d7270583d..4f61725b1d86 100644

> --- a/samples/bpf/Makefile

> +++ b/samples/bpf/Makefile

> @@ -201,7 +201,7 @@ endif

>

>  # Don't evaluate probes and warnings if we need to run make recursively

>  ifneq ($(src),)

> -HDR_PROBE := $(shell echo "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \

> +HDR_PROBE := $(shell printf "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \

>         $(HOSTCC) $(KBUILD_HOSTCFLAGS) -x c - -o /dev/null 2>/dev/null && \

>         echo okay)

>

> --

> 2.17.1

>
diff mbox series

Patch

diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index a11d7270583d..4f61725b1d86 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -201,7 +201,7 @@  endif
 
 # Don't evaluate probes and warnings if we need to run make recursively
 ifneq ($(src),)
-HDR_PROBE := $(shell echo "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \
+HDR_PROBE := $(shell printf "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \
 	$(HOSTCC) $(KBUILD_HOSTCFLAGS) -x c - -o /dev/null 2>/dev/null && \
 	echo okay)