[dpdk-dev] [PATCH] eal: add include for rte_byteorder on ARM

[dpdk-dev] [PATCH] eal: add include for rte_byteorder on ARM

[Michael Pfeiffer]

Including rte_byteorder.h may fail for ARM builds with 'Platform must
be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
before. Include rte_config.h from rte_byteorder.h to solve the issue.

Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
---
 lib/eal/arm/include/rte_byteorder.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
index df2f1d87ba..1f90db9943 100644
--- a/lib/eal/arm/include/rte_byteorder.h
+++ b/lib/eal/arm/include/rte_byteorder.h
@@ -5,18 +5,19 @@
 #ifndef _RTE_BYTEORDER_ARM_H_
 #define _RTE_BYTEORDER_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include <stdint.h>
 #include <rte_common.h>
+#include <rte_config.h>
 #include "generic/rte_byteorder.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 /* fix missing __builtin_bswap16 for gcc older then 4.8 */
 #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
 
-- 
2.31.1

Re: [dpdk-dev] [PATCH] eal: add include for rte_byteorder on ARM

[Jerin Jacob]

On Fri, Jun 4, 2021 at 5:18 PM Michael Pfeiffer
<michael.pfeiffer@tu-ilmenau.de> wrote:
>
> Including rte_byteorder.h may fail for ARM builds with 'Platform must
> be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
> before. Include rte_config.h from rte_byteorder.h to solve the issue.
>
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>

Since -include rte_config.h added by meson, This issue is not coming
with in tree build.
IMO, Fix is correct.

Please send v2 with
- Add Fixes: tag and Cc: stable@dpdk.org so that i can be backported
to stable tree.
- Fix following checkformat.sh warning

Wrong headline format:
        eal: add include for rte_byteorder on ARM
Wrong headline case:
                        "eal: add include for rte_byteorder on ARM": ARM --> Arm

- Subject could be "eal: arm: fix out of tree build" or so.

With above change:

Acked-by: Jerin Jacob <jerinj@marvell.com>



> ---
>  lib/eal/arm/include/rte_byteorder.h | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
> index df2f1d87ba..1f90db9943 100644
> --- a/lib/eal/arm/include/rte_byteorder.h
> +++ b/lib/eal/arm/include/rte_byteorder.h
> @@ -5,18 +5,19 @@
>  #ifndef _RTE_BYTEORDER_ARM_H_
>  #define _RTE_BYTEORDER_ARM_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
>
>  #include <stdint.h>
>  #include <rte_common.h>
> +#include <rte_config.h>
>  #include "generic/rte_byteorder.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  /* fix missing __builtin_bswap16 for gcc older then 4.8 */
>  #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
>
> --
> 2.31.1
>

[dpdk-dev] [PATCH v3] eal: arm: fix out of tree build

[Michael Pfeiffer]

Including rte_byteorder.h may fail for ARM builds with 'Platform must
be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
before. Include rte_config.h from rte_byteorder.h to solve the issue.

Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
Cc: kosar@rehivetech.com
Cc: stable@dpdk.org

Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
---
v3:
* Proper in-reply-to.

v2:
* Fixed subject line.
* Add "Fixes:" and CC to stable.

 lib/eal/arm/include/rte_byteorder.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
index df2f1d87ba..1f90db9943 100644
--- a/lib/eal/arm/include/rte_byteorder.h
+++ b/lib/eal/arm/include/rte_byteorder.h
@@ -5,18 +5,19 @@
 #ifndef _RTE_BYTEORDER_ARM_H_
 #define _RTE_BYTEORDER_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include <stdint.h>
 #include <rte_common.h>
+#include <rte_config.h>
 #include "generic/rte_byteorder.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 /* fix missing __builtin_bswap16 for gcc older then 4.8 */
 #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
 
-- 
2.31.1

Re: [dpdk-dev] [PATCH v3] eal: arm: fix out of tree build

[Ruifeng Wang]

> -----Original Message-----
> From: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> Sent: Monday, June 7, 2021 2:53 PM
> To: Jan Viktorin <viktorin@rehivetech.com>; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com
> Cc: dev@dpdk.org; Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>;
> kosar@rehivetech.com; stable@dpdk.org
> Subject: [PATCH v3] eal: arm: fix out of tree build
> 
> Including rte_byteorder.h may fail for ARM builds with 'Platform must be
> built with RTE_FORCE_INTRINSICS' if rte_config.h is not included before.
> Include rte_config.h from rte_byteorder.h to solve the issue.
> 
> Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> Cc: kosar@rehivetech.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> ---
> v3:
> * Proper in-reply-to.
> 
> v2:
> * Fixed subject line.
> * Add "Fixes:" and CC to stable.
> 
>  lib/eal/arm/include/rte_byteorder.h | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/lib/eal/arm/include/rte_byteorder.h
> b/lib/eal/arm/include/rte_byteorder.h
> index df2f1d87ba..1f90db9943 100644
> --- a/lib/eal/arm/include/rte_byteorder.h
> +++ b/lib/eal/arm/include/rte_byteorder.h
> @@ -5,18 +5,19 @@
>  #ifndef _RTE_BYTEORDER_ARM_H_
>  #define _RTE_BYTEORDER_ARM_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
Moving of this section solves the problem.

>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> 
>  #include <stdint.h>
>  #include <rte_common.h>
> +#include <rte_config.h>
rte_config.h is included by rte_common.h in above line.

>  #include "generic/rte_byteorder.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  /* fix missing __builtin_bswap16 for gcc older then 4.8 */  #if !(__GNUC__ >
> 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
> 
> --
> 2.31.1

I see similar issue in rte_atomic32.h/rte_atomic64.h/rte_spinlock.h/rte_ticketlock.h/rte_mcslock.h in lib/eal/arm/include.
Do you want to fix all these?
Thanks.

[dpdk-dev] [PATCH v4] eal: arm: fix out of tree build

[Michael Pfeiffer]

Including various headers may fail for ARM builds with 'Platform must
be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
before. Move the error message after the includes to ensure rte_config.h
is always included.

Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
Cc: kosar@rehivetech.com
Cc: stable@dpdk.org

Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
---
v4:
* Apply to fix to rte_atomic_{32,64}.h, rte_{mcs,spin,ticket}lock.h as
  well.
* Remove unnecessary include of rte_config.h.
* Adjust commit message.

v3:
* Proper in-reply-to.

v2:
* Fixed subject line.

 lib/eal/arm/include/rte_atomic_32.h  | 8 ++++----
 lib/eal/arm/include/rte_atomic_64.h  | 8 ++++----
 lib/eal/arm/include/rte_byteorder.h  | 8 ++++----
 lib/eal/arm/include/rte_mcslock.h    | 8 ++++----
 lib/eal/arm/include/rte_spinlock.h   | 8 ++++----
 lib/eal/arm/include/rte_ticketlock.h | 8 ++++----
 6 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/lib/eal/arm/include/rte_atomic_32.h b/lib/eal/arm/include/rte_atomic_32.h
index c00ab78dba..138abd3a8b 100644
--- a/lib/eal/arm/include/rte_atomic_32.h
+++ b/lib/eal/arm/include/rte_atomic_32.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_ATOMIC_ARM32_H_
 #define _RTE_ATOMIC_ARM32_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_atomic.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #define	rte_mb()  __sync_synchronize()
 
 #define	rte_wmb() do { asm volatile ("dmb st" : : : "memory"); } while (0)
diff --git a/lib/eal/arm/include/rte_atomic_64.h b/lib/eal/arm/include/rte_atomic_64.h
index fa6f334c0d..2907a95196 100644
--- a/lib/eal/arm/include/rte_atomic_64.h
+++ b/lib/eal/arm/include/rte_atomic_64.h
@@ -6,10 +6,6 @@
 #ifndef _RTE_ATOMIC_ARM64_H_
 #define _RTE_ATOMIC_ARM64_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -19,6 +15,10 @@ extern "C" {
 #include <rte_compat.h>
 #include <rte_debug.h>
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #define rte_mb() asm volatile("dmb osh" : : : "memory")
 
 #define rte_wmb() asm volatile("dmb oshst" : : : "memory")
diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
index df2f1d87ba..c00bebf680 100644
--- a/lib/eal/arm/include/rte_byteorder.h
+++ b/lib/eal/arm/include/rte_byteorder.h
@@ -5,10 +5,6 @@
 #ifndef _RTE_BYTEORDER_ARM_H_
 #define _RTE_BYTEORDER_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -17,6 +13,10 @@ extern "C" {
 #include <rte_common.h>
 #include "generic/rte_byteorder.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 /* fix missing __builtin_bswap16 for gcc older then 4.8 */
 #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
 
diff --git a/lib/eal/arm/include/rte_mcslock.h b/lib/eal/arm/include/rte_mcslock.h
index 896d678073..915a3ed647 100644
--- a/lib/eal/arm/include/rte_mcslock.h
+++ b/lib/eal/arm/include/rte_mcslock.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_MCSLOCK_ARM_H_
 #define _RTE_MCSLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_mcslock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/eal/arm/include/rte_spinlock.h b/lib/eal/arm/include/rte_spinlock.h
index a973763c23..e29ddab89a 100644
--- a/lib/eal/arm/include/rte_spinlock.h
+++ b/lib/eal/arm/include/rte_spinlock.h
@@ -5,10 +5,6 @@
 #ifndef _RTE_SPINLOCK_ARM_H_
 #define _RTE_SPINLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -16,6 +12,10 @@ extern "C" {
 #include <rte_common.h>
 #include "generic/rte_spinlock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 static inline int rte_tm_supported(void)
 {
 	return 0;
diff --git a/lib/eal/arm/include/rte_ticketlock.h b/lib/eal/arm/include/rte_ticketlock.h
index e66beefbe2..22eb40fb66 100644
--- a/lib/eal/arm/include/rte_ticketlock.h
+++ b/lib/eal/arm/include/rte_ticketlock.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_TICKETLOCK_ARM_H_
 #define _RTE_TICKETLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_ticketlock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.32.0

Re: [dpdk-dev] [PATCH v4] eal: arm: fix out of tree build

[Ruifeng Wang]

> -----Original Message-----
> From: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> Sent: Tuesday, June 8, 2021 6:29 PM
> To: Jan Viktorin <viktorin@rehivetech.com>; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com
> Cc: dev@dpdk.org; Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>;
> kosar@rehivetech.com; stable@dpdk.org
> Subject: [PATCH v4] eal: arm: fix out of tree build
> 
> Including various headers may fail for ARM builds with 'Platform must be built
> with RTE_FORCE_INTRINSICS' if rte_config.h is not included before. Move
> the error message after the includes to ensure rte_config.h is always
> included.
> 
> Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
Thanks for the patch.
More fix lines should be added:
Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")

With the change:
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>

> Cc: kosar@rehivetech.com
> Cc: stable@dpdk.org
> 
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> ---
> v4:
> * Apply to fix to rte_atomic_{32,64}.h, rte_{mcs,spin,ticket}lock.h as
>   well.
> * Remove unnecessary include of rte_config.h.
> * Adjust commit message.
> 
> v3:
> * Proper in-reply-to.
> 
> v2:
> * Fixed subject line.
> 
>  lib/eal/arm/include/rte_atomic_32.h  | 8 ++++----
> lib/eal/arm/include/rte_atomic_64.h  | 8 ++++----
> lib/eal/arm/include/rte_byteorder.h  | 8 ++++----
>  lib/eal/arm/include/rte_mcslock.h    | 8 ++++----
>  lib/eal/arm/include/rte_spinlock.h   | 8 ++++----
>  lib/eal/arm/include/rte_ticketlock.h | 8 ++++----
>  6 files changed, 24 insertions(+), 24 deletions(-)
> 
> diff --git a/lib/eal/arm/include/rte_atomic_32.h
> b/lib/eal/arm/include/rte_atomic_32.h
> index c00ab78dba..138abd3a8b 100644
> --- a/lib/eal/arm/include/rte_atomic_32.h
> +++ b/lib/eal/arm/include/rte_atomic_32.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_ATOMIC_ARM32_H_
>  #define _RTE_ATOMIC_ARM32_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> 
>  #include "generic/rte_atomic.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  #define	rte_mb()  __sync_synchronize()
> 
>  #define	rte_wmb() do { asm volatile ("dmb st" : : : "memory"); } while
> (0)
> diff --git a/lib/eal/arm/include/rte_atomic_64.h
> b/lib/eal/arm/include/rte_atomic_64.h
> index fa6f334c0d..2907a95196 100644
> --- a/lib/eal/arm/include/rte_atomic_64.h
> +++ b/lib/eal/arm/include/rte_atomic_64.h
> @@ -6,10 +6,6 @@
>  #ifndef _RTE_ATOMIC_ARM64_H_
>  #define _RTE_ATOMIC_ARM64_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -19,6 +15,10 @@ extern "C" {
>  #include <rte_compat.h>
>  #include <rte_debug.h>
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  #define rte_mb() asm volatile("dmb osh" : : : "memory")
> 
>  #define rte_wmb() asm volatile("dmb oshst" : : : "memory") diff --git
> a/lib/eal/arm/include/rte_byteorder.h
> b/lib/eal/arm/include/rte_byteorder.h
> index df2f1d87ba..c00bebf680 100644
> --- a/lib/eal/arm/include/rte_byteorder.h
> +++ b/lib/eal/arm/include/rte_byteorder.h
> @@ -5,10 +5,6 @@
>  #ifndef _RTE_BYTEORDER_ARM_H_
>  #define _RTE_BYTEORDER_ARM_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -17,6 +13,10 @@ extern "C" {
>  #include <rte_common.h>
>  #include "generic/rte_byteorder.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  /* fix missing __builtin_bswap16 for gcc older then 4.8 */  #if !(__GNUC__ >
> 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
> 
> diff --git a/lib/eal/arm/include/rte_mcslock.h
> b/lib/eal/arm/include/rte_mcslock.h
> index 896d678073..915a3ed647 100644
> --- a/lib/eal/arm/include/rte_mcslock.h
> +++ b/lib/eal/arm/include/rte_mcslock.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_MCSLOCK_ARM_H_
>  #define _RTE_MCSLOCK_ARM_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> 
>  #include "generic/rte_mcslock.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  #ifdef __cplusplus
>  }
>  #endif
> diff --git a/lib/eal/arm/include/rte_spinlock.h
> b/lib/eal/arm/include/rte_spinlock.h
> index a973763c23..e29ddab89a 100644
> --- a/lib/eal/arm/include/rte_spinlock.h
> +++ b/lib/eal/arm/include/rte_spinlock.h
> @@ -5,10 +5,6 @@
>  #ifndef _RTE_SPINLOCK_ARM_H_
>  #define _RTE_SPINLOCK_ARM_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -16,6 +12,10 @@ extern "C" {
>  #include <rte_common.h>
>  #include "generic/rte_spinlock.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  static inline int rte_tm_supported(void)  {
>  	return 0;
> diff --git a/lib/eal/arm/include/rte_ticketlock.h
> b/lib/eal/arm/include/rte_ticketlock.h
> index e66beefbe2..22eb40fb66 100644
> --- a/lib/eal/arm/include/rte_ticketlock.h
> +++ b/lib/eal/arm/include/rte_ticketlock.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_TICKETLOCK_ARM_H_
>  #define _RTE_TICKETLOCK_ARM_H_
> 
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> 
>  #include "generic/rte_ticketlock.h"
> 
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS #endif
> +
>  #ifdef __cplusplus
>  }
>  #endif
> --
> 2.32.0

[dpdk-dev] [PATCH v5] eal: arm: fix out of tree build

[Michael Pfeiffer]

Including various headers may fail for ARM builds with 'Platform must
be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
before. Move the error message after the includes to ensure rte_config.h
is always included.

Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
Cc: stable@dpdk.org
Cc: kosar@rehivetech.com
Cc: phil.yang@arm.com
Cc: joyce.kong@arm.com

Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
---
v5:
* Add Fixes: tag.

v4:
* Apply to fix to rte_atomic_{32,64}.h, rte_{mcs,spin,ticket}lock.h as
  well.
* Remove unnecessary include of rte_config.h.
* Adjust commit message.

v3:
* Proper in-reply-to.

v2:
* Fixed subject line.

 lib/eal/arm/include/rte_atomic_32.h  | 8 ++++----
 lib/eal/arm/include/rte_atomic_64.h  | 8 ++++----
 lib/eal/arm/include/rte_byteorder.h  | 8 ++++----
 lib/eal/arm/include/rte_mcslock.h    | 8 ++++----
 lib/eal/arm/include/rte_spinlock.h   | 8 ++++----
 lib/eal/arm/include/rte_ticketlock.h | 8 ++++----
 6 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/lib/eal/arm/include/rte_atomic_32.h b/lib/eal/arm/include/rte_atomic_32.h
index c00ab78dba..138abd3a8b 100644
--- a/lib/eal/arm/include/rte_atomic_32.h
+++ b/lib/eal/arm/include/rte_atomic_32.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_ATOMIC_ARM32_H_
 #define _RTE_ATOMIC_ARM32_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_atomic.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #define	rte_mb()  __sync_synchronize()
 
 #define	rte_wmb() do { asm volatile ("dmb st" : : : "memory"); } while (0)
diff --git a/lib/eal/arm/include/rte_atomic_64.h b/lib/eal/arm/include/rte_atomic_64.h
index fa6f334c0d..2907a95196 100644
--- a/lib/eal/arm/include/rte_atomic_64.h
+++ b/lib/eal/arm/include/rte_atomic_64.h
@@ -6,10 +6,6 @@
 #ifndef _RTE_ATOMIC_ARM64_H_
 #define _RTE_ATOMIC_ARM64_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -19,6 +15,10 @@ extern "C" {
 #include <rte_compat.h>
 #include <rte_debug.h>
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #define rte_mb() asm volatile("dmb osh" : : : "memory")
 
 #define rte_wmb() asm volatile("dmb oshst" : : : "memory")
diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
index df2f1d87ba..c00bebf680 100644
--- a/lib/eal/arm/include/rte_byteorder.h
+++ b/lib/eal/arm/include/rte_byteorder.h
@@ -5,10 +5,6 @@
 #ifndef _RTE_BYTEORDER_ARM_H_
 #define _RTE_BYTEORDER_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -17,6 +13,10 @@ extern "C" {
 #include <rte_common.h>
 #include "generic/rte_byteorder.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 /* fix missing __builtin_bswap16 for gcc older then 4.8 */
 #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
 
diff --git a/lib/eal/arm/include/rte_mcslock.h b/lib/eal/arm/include/rte_mcslock.h
index 896d678073..915a3ed647 100644
--- a/lib/eal/arm/include/rte_mcslock.h
+++ b/lib/eal/arm/include/rte_mcslock.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_MCSLOCK_ARM_H_
 #define _RTE_MCSLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_mcslock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/eal/arm/include/rte_spinlock.h b/lib/eal/arm/include/rte_spinlock.h
index a973763c23..e29ddab89a 100644
--- a/lib/eal/arm/include/rte_spinlock.h
+++ b/lib/eal/arm/include/rte_spinlock.h
@@ -5,10 +5,6 @@
 #ifndef _RTE_SPINLOCK_ARM_H_
 #define _RTE_SPINLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -16,6 +12,10 @@ extern "C" {
 #include <rte_common.h>
 #include "generic/rte_spinlock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 static inline int rte_tm_supported(void)
 {
 	return 0;
diff --git a/lib/eal/arm/include/rte_ticketlock.h b/lib/eal/arm/include/rte_ticketlock.h
index e66beefbe2..22eb40fb66 100644
--- a/lib/eal/arm/include/rte_ticketlock.h
+++ b/lib/eal/arm/include/rte_ticketlock.h
@@ -5,16 +5,16 @@
 #ifndef _RTE_TICKETLOCK_ARM_H_
 #define _RTE_TICKETLOCK_ARM_H_
 
-#ifndef RTE_FORCE_INTRINSICS
-#  error Platform must be built with RTE_FORCE_INTRINSICS
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #include "generic/rte_ticketlock.h"
 
+#ifndef RTE_FORCE_INTRINSICS
+#  error Platform must be built with RTE_FORCE_INTRINSICS
+#endif
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.32.0

Re: [dpdk-dev] [PATCH v5] eal: arm: fix out of tree build

[Ruifeng Wang]

> -----Original Message-----
> From: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> Sent: Wednesday, June 9, 2021 6:18 PM
> To: Jan Viktorin <viktorin@rehivetech.com>; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com
> Cc: dev@dpdk.org; Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>;
> stable@dpdk.org; kosar@rehivetech.com; Phil Yang <Phil.Yang@arm.com>;
> Joyce Kong <Joyce.Kong@arm.com>
> Subject: [PATCH v5] eal: arm: fix out of tree build
> 
> Including various headers may fail for ARM builds with 'Platform must be built
> with RTE_FORCE_INTRINSICS' if rte_config.h is not included before. Move
> the error message after the includes to ensure rte_config.h is always
> included.
> 
> Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
> Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
> Cc: stable@dpdk.org
> Cc: kosar@rehivetech.com
> Cc: phil.yang@arm.com
> Cc: joyce.kong@arm.com
> 
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> ---
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>

Re: [dpdk-dev] [PATCH v5] eal: arm: fix out of tree build

[Jerin Jacob]

On Wed, Jun 9, 2021 at 3:48 PM Michael Pfeiffer
<michael.pfeiffer@tu-ilmenau.de> wrote:
>
> Including various headers may fail for ARM builds with 'Platform must
> be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
> before. Move the error message after the includes to ensure rte_config.h
> is always included.
>
> Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
> Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
> Cc: stable@dpdk.org
> Cc: kosar@rehivetech.com
> Cc: phil.yang@arm.com
> Cc: joyce.kong@arm.com
>
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>


Acked-by: Jerin Jacob <jerinj@marvell.com>


> ---
> v5:
> * Add Fixes: tag.
>
> v4:
> * Apply to fix to rte_atomic_{32,64}.h, rte_{mcs,spin,ticket}lock.h as
>   well.
> * Remove unnecessary include of rte_config.h.
> * Adjust commit message.
>
> v3:
> * Proper in-reply-to.
>
> v2:
> * Fixed subject line.
>
>  lib/eal/arm/include/rte_atomic_32.h  | 8 ++++----
>  lib/eal/arm/include/rte_atomic_64.h  | 8 ++++----
>  lib/eal/arm/include/rte_byteorder.h  | 8 ++++----
>  lib/eal/arm/include/rte_mcslock.h    | 8 ++++----
>  lib/eal/arm/include/rte_spinlock.h   | 8 ++++----
>  lib/eal/arm/include/rte_ticketlock.h | 8 ++++----
>  6 files changed, 24 insertions(+), 24 deletions(-)
>
> diff --git a/lib/eal/arm/include/rte_atomic_32.h b/lib/eal/arm/include/rte_atomic_32.h
> index c00ab78dba..138abd3a8b 100644
> --- a/lib/eal/arm/include/rte_atomic_32.h
> +++ b/lib/eal/arm/include/rte_atomic_32.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_ATOMIC_ARM32_H_
>  #define _RTE_ATOMIC_ARM32_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
>
>  #include "generic/rte_atomic.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  #define        rte_mb()  __sync_synchronize()
>
>  #define        rte_wmb() do { asm volatile ("dmb st" : : : "memory"); } while (0)
> diff --git a/lib/eal/arm/include/rte_atomic_64.h b/lib/eal/arm/include/rte_atomic_64.h
> index fa6f334c0d..2907a95196 100644
> --- a/lib/eal/arm/include/rte_atomic_64.h
> +++ b/lib/eal/arm/include/rte_atomic_64.h
> @@ -6,10 +6,6 @@
>  #ifndef _RTE_ATOMIC_ARM64_H_
>  #define _RTE_ATOMIC_ARM64_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -19,6 +15,10 @@ extern "C" {
>  #include <rte_compat.h>
>  #include <rte_debug.h>
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  #define rte_mb() asm volatile("dmb osh" : : : "memory")
>
>  #define rte_wmb() asm volatile("dmb oshst" : : : "memory")
> diff --git a/lib/eal/arm/include/rte_byteorder.h b/lib/eal/arm/include/rte_byteorder.h
> index df2f1d87ba..c00bebf680 100644
> --- a/lib/eal/arm/include/rte_byteorder.h
> +++ b/lib/eal/arm/include/rte_byteorder.h
> @@ -5,10 +5,6 @@
>  #ifndef _RTE_BYTEORDER_ARM_H_
>  #define _RTE_BYTEORDER_ARM_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -17,6 +13,10 @@ extern "C" {
>  #include <rte_common.h>
>  #include "generic/rte_byteorder.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  /* fix missing __builtin_bswap16 for gcc older then 4.8 */
>  #if !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))
>
> diff --git a/lib/eal/arm/include/rte_mcslock.h b/lib/eal/arm/include/rte_mcslock.h
> index 896d678073..915a3ed647 100644
> --- a/lib/eal/arm/include/rte_mcslock.h
> +++ b/lib/eal/arm/include/rte_mcslock.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_MCSLOCK_ARM_H_
>  #define _RTE_MCSLOCK_ARM_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
>
>  #include "generic/rte_mcslock.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  #ifdef __cplusplus
>  }
>  #endif
> diff --git a/lib/eal/arm/include/rte_spinlock.h b/lib/eal/arm/include/rte_spinlock.h
> index a973763c23..e29ddab89a 100644
> --- a/lib/eal/arm/include/rte_spinlock.h
> +++ b/lib/eal/arm/include/rte_spinlock.h
> @@ -5,10 +5,6 @@
>  #ifndef _RTE_SPINLOCK_ARM_H_
>  #define _RTE_SPINLOCK_ARM_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
> @@ -16,6 +12,10 @@ extern "C" {
>  #include <rte_common.h>
>  #include "generic/rte_spinlock.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  static inline int rte_tm_supported(void)
>  {
>         return 0;
> diff --git a/lib/eal/arm/include/rte_ticketlock.h b/lib/eal/arm/include/rte_ticketlock.h
> index e66beefbe2..22eb40fb66 100644
> --- a/lib/eal/arm/include/rte_ticketlock.h
> +++ b/lib/eal/arm/include/rte_ticketlock.h
> @@ -5,16 +5,16 @@
>  #ifndef _RTE_TICKETLOCK_ARM_H_
>  #define _RTE_TICKETLOCK_ARM_H_
>
> -#ifndef RTE_FORCE_INTRINSICS
> -#  error Platform must be built with RTE_FORCE_INTRINSICS
> -#endif
> -
>  #ifdef __cplusplus
>  extern "C" {
>  #endif
>
>  #include "generic/rte_ticketlock.h"
>
> +#ifndef RTE_FORCE_INTRINSICS
> +#  error Platform must be built with RTE_FORCE_INTRINSICS
> +#endif
> +
>  #ifdef __cplusplus
>  }
>  #endif
> --
> 2.32.0
>

Re: [dpdk-dev] [dpdk-stable] [PATCH v5] eal: arm: fix out of tree build

[David Marchand]

Hello Bruce,

On Wed, Jun 9, 2021 at 12:18 PM Michael Pfeiffer
<michael.pfeiffer@tu-ilmenau.de> wrote:
>
> Including various headers may fail for ARM builds with 'Platform must
> be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
> before. Move the error message after the includes to ensure rte_config.h
> is always included.
>
> Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
> Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
> Cc: stable@dpdk.org
> Cc: kosar@rehivetech.com
> Cc: phil.yang@arm.com
> Cc: joyce.kong@arm.com
>
> Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>

The header check currently compiles all headers with an implicit
"-include rte_config.h".
I suppose this is because it comes from the project level meson configuration.

Would there be a way to detect the issue fixed by this patch?


-- 
David Marchand

Re: [dpdk-dev] [dpdk-stable] [PATCH v5] eal: arm: fix out of tree build

[Bruce Richardson]

On Fri, Jun 11, 2021 at 11:54:25AM +0200, David Marchand wrote:
> Hello Bruce,
> 
> On Wed, Jun 9, 2021 at 12:18 PM Michael Pfeiffer
> <michael.pfeiffer@tu-ilmenau.de> wrote:
> >
> > Including various headers may fail for ARM builds with 'Platform must
> > be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
> > before. Move the error message after the includes to ensure rte_config.h
> > is always included.
> >
> > Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> > Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> > Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> > Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
> > Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> > Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
> > Cc: stable@dpdk.org
> > Cc: kosar@rehivetech.com
> > Cc: phil.yang@arm.com
> > Cc: joyce.kong@arm.com
> >
> > Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> 
> The header check currently compiles all headers with an implicit
> "-include rte_config.h".
> I suppose this is because it comes from the project level meson configuration.
> 
> Would there be a way to detect the issue fixed by this patch?
> 
I'm not convinced that there is an issue here. For DPDK compiles
rte_config.h must always be included first, which is why it's included in
the cflags reported by pkg-config. If we do want to move away from having
rte_config as an omnipresent first include, we need to update many DPDK
headers to explicitly include it.

/Bruce

Re: [dpdk-dev] [dpdk-stable] [PATCH v5] eal: arm: fix out of tree build

[Michael Pfeiffer]

Hi there,

On Fri, 2021-06-11 at 10:59 +0100, Bruce Richardson wrote:
> On Fri, Jun 11, 2021 at 11:54:25AM +0200, David Marchand wrote:
> > Hello Bruce,
> > 
> > On Wed, Jun 9, 2021 at 12:18 PM Michael Pfeiffer
> > <michael.pfeiffer@tu-ilmenau.de> wrote:
> > > 
> > > Including various headers may fail for ARM builds with 'Platform must
> > > be built with RTE_FORCE_INTRINSICS' if rte_config.h is not included
> > > before. Move the error message after the includes to ensure rte_config.h
> > > is always included.
> > > 
> > > Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> > > Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> > > Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> > > Fixes: 2173f3333b61 ("mcslock: add MCS queued lock implementation")
> > > Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> > > Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all arch")
> > > Cc: stable@dpdk.org
> > > Cc: kosar@rehivetech.com
> > > Cc: phil.yang@arm.com
> > > Cc: joyce.kong@arm.com
> > > 
> > > Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> > 
> > The header check currently compiles all headers with an implicit
> > "-include rte_config.h".
> > I suppose this is because it comes from the project level meson
> > configuration.
> > 
> > Would there be a way to detect the issue fixed by this patch?
> > 
> I'm not convinced that there is an issue here. For DPDK compiles
> rte_config.h must always be included first, which is why it's included in
> the cflags reported by pkg-config. If we do want to move away from having
> rte_config as an omnipresent first include, we need to update many DPDK
> headers to explicitly include it.

the issue came up in our (rather large) DPDK app. Our build process uses a
hand-crafted build system (based on ninja) for native and cross builds, i.e.
pkg-config is not involved. It basically throws "-isystem <our-target-
prefix>/include/dpdk" into the compiler and omits linking some of the DPDK libs
not used by us.

This worked fine for us, and has no issues for x86 targets. I guess because
most headers do include rte_config (or rte_common) at least transitively before
doing anything else. Anyway, if you regard "-include rte_config.h" as the way
to go, this is fine for me. Its a one-liner for us and we can probably drop the
patch then.

Regards
Michael

Re: [dpdk-dev] [dpdk-stable] [PATCH v5] eal: arm: fix out of tree build

[Ruifeng Wang]

> -----Original Message-----
> From: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> Sent: Friday, June 11, 2021 6:28 PM
> To: Bruce Richardson <bruce.richardson@intel.com>; David Marchand
> <david.marchand@redhat.com>
> Cc: Jan Viktorin <viktorin@rehivetech.com>; Ruifeng Wang
> <Ruifeng.Wang@arm.com>; jerinj@marvell.com; dev <dev@dpdk.org>;
> dpdk stable <stable@dpdk.org>; kosar@rehivetech.com; Phil Yang
> <Phil.Yang@arm.com>; Joyce Kong <Joyce.Kong@arm.com>
> Subject: Re: [dpdk-stable] [PATCH v5] eal: arm: fix out of tree build
> 
> Hi there,
> 
> On Fri, 2021-06-11 at 10:59 +0100, Bruce Richardson wrote:
> > On Fri, Jun 11, 2021 at 11:54:25AM +0200, David Marchand wrote:
> > > Hello Bruce,
> > >
> > > On Wed, Jun 9, 2021 at 12:18 PM Michael Pfeiffer
> > > <michael.pfeiffer@tu-ilmenau.de> wrote:
> > > >
> > > > Including various headers may fail for ARM builds with 'Platform
> > > > must be built with RTE_FORCE_INTRINSICS' if rte_config.h is not
> > > > included before. Move the error message after the includes to
> > > > ensure rte_config.h is always included.
> > > >
> > > > Fixes: de966ccdcd7f ("eal/arm: add byte order operations for ARM")
> > > > Fixes: 17d5fa0fa90d ("eal/arm: add atomic operations for ARMv7")
> > > > Fixes: d708f01b7102 ("eal/arm: add atomic operations for ARMv8")
> > > > Fixes: 2173f3333b61 ("mcslock: add MCS queued lock
> > > > implementation")
> > > > Fixes: 7860c3965483 ("eal/arm: add spinlock operations for ARM")
> > > > Fixes: ca49b92079df ("ticketlock: enable generic ticketlock on all
> > > > arch")
> > > > Cc: stable@dpdk.org
> > > > Cc: kosar@rehivetech.com
> > > > Cc: phil.yang@arm.com
> > > > Cc: joyce.kong@arm.com
> > > >
> > > > Signed-off-by: Michael Pfeiffer <michael.pfeiffer@tu-ilmenau.de>
> > >
> > > The header check currently compiles all headers with an implicit
> > > "-include rte_config.h".
> > > I suppose this is because it comes from the project level meson
> > > configuration.
> > >
> > > Would there be a way to detect the issue fixed by this patch?
> > >
> > I'm not convinced that there is an issue here. For DPDK compiles
> > rte_config.h must always be included first, which is why it's included
> > in the cflags reported by pkg-config. If we do want to move away from
> > having rte_config as an omnipresent first include, we need to update
> > many DPDK headers to explicitly include it.
> 
> the issue came up in our (rather large) DPDK app. Our build process uses a
> hand-crafted build system (based on ninja) for native and cross builds, i.e.
> pkg-config is not involved. It basically throws "-isystem <our-target-
> prefix>/include/dpdk" into the compiler and omits linking some of the
> prefix>DPDK libs
> not used by us.
> 
> This worked fine for us, and has no issues for x86 targets. I guess because
> most headers do include rte_config (or rte_common) at least transitively
As what I can find, no issues for x86 because it has been fixed in commit:
0d440d081ca1 ("lib: fix missing includes in exported headers")

> before doing anything else. Anyway, if you regard "-include rte_config.h" as
> the way to go, this is fine for me. Its a one-liner for us and we can probably
> drop the patch then.
> 
> Regards
> Michael