[dpdk-dev] [PATCH 0/4] Support librte_mbuf on Windows

[dpdk-dev] [PATCH 0/4] Support librte_mbuf on Windows

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

This patchset enables compilation and build of librte_mbuf on Windows.

Depends-on: series-10276 ("build mempool on Windows")
Depends-on: series-10156 ("Windows bus/pci support")

Tal Shnaiderman (4):
  eal: move OS common config code to single file
  eal: set byteorder in Windows to little endian
  eal: export needed functions for mbuf
  mbuf: build on Windows

 lib/librte_eal/common/eal_common_config.c      | 11 +++++++++++
 lib/librte_eal/common/meson.build              |  1 +
 lib/librte_eal/freebsd/eal.c                   | 10 ----------
 lib/librte_eal/include/generic/rte_byteorder.h |  4 +++-
 lib/librte_eal/linux/eal.c                     | 10 ----------
 lib/librte_eal/rte_eal_exports.def             |  3 +++
 lib/librte_eal/rte_eal_version.map             |  1 +
 lib/librte_eal/windows/eal.c                   |  3 ---
 lib/meson.build                                |  3 +--
 9 files changed, 20 insertions(+), 26 deletions(-)

-- 
2.16.1.windows.4

[dpdk-dev] [PATCH 1/4] eal: move OS common config code to single file

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Move common struct rte_config and function
rte_eal_mbuf_user_pool_ops to eal_config.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/librte_eal/common/eal_common_config.c | 11 +++++++++++
 lib/librte_eal/freebsd/eal.c              | 10 ----------
 lib/librte_eal/linux/eal.c                | 10 ----------
 lib/librte_eal/windows/eal.c              |  3 ---
 4 files changed, 11 insertions(+), 23 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_config.c b/lib/librte_eal/common/eal_common_config.c
index 641c7d884c..c69a088182 100644
--- a/lib/librte_eal/common/eal_common_config.c
+++ b/lib/librte_eal/common/eal_common_config.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  * Copyright(c) 2020 Mellanox Technologies, Ltd
  */
+#include <eal_internal_cfg.h>
 #include <eal_private.h>
 
 #include <rte_os.h>
@@ -13,6 +14,9 @@ struct rte_config rte_config = {
 		.mem_config = &early_mem_config,
 };
 
+/* internal configuration */
+struct internal_config internal_config;
+
 const char *
 rte_eal_get_runtime_dir(void)
 {
@@ -37,3 +41,10 @@ rte_eal_process_type(void)
 {
 	return rte_config.process_type;
 }
+
+/* Return user provided mbuf pool ops name */
+const char *
+rte_eal_mbuf_user_pool_ops(void)
+{
+	return internal_config.user_mbuf_pool_ops_name;
+}
diff --git a/lib/librte_eal/freebsd/eal.c b/lib/librte_eal/freebsd/eal.c
index eab961232e..6be7414f1a 100644
--- a/lib/librte_eal/freebsd/eal.c
+++ b/lib/librte_eal/freebsd/eal.c
@@ -73,9 +73,6 @@ static struct flock wr_lock = {
 /* internal configuration (per-core) */
 struct lcore_config lcore_config[RTE_MAX_LCORE];
 
-/* internal configuration */
-struct internal_config internal_config;
-
 /* used by rte_rdtsc() */
 int rte_cycles_vmware_tsc_map;
 
@@ -141,13 +138,6 @@ eal_clean_runtime_dir(void)
 	return 0;
 }
 
-/* Return user provided mbuf pool ops name */
-const char *
-rte_eal_mbuf_user_pool_ops(void)
-{
-	return internal_config.user_mbuf_pool_ops_name;
-}
-
 /* parse a sysfs (or other) file containing one integer value */
 int
 eal_parse_sysfs_value(const char *filename, unsigned long *val)
diff --git a/lib/librte_eal/linux/eal.c b/lib/librte_eal/linux/eal.c
index 8cbb8c644c..302f0a1228 100644
--- a/lib/librte_eal/linux/eal.c
+++ b/lib/librte_eal/linux/eal.c
@@ -86,9 +86,6 @@ static struct flock wr_lock = {
 /* internal configuration (per-core) */
 struct lcore_config lcore_config[RTE_MAX_LCORE];
 
-/* internal configuration */
-struct internal_config internal_config;
-
 /* used by rte_rdtsc() */
 int rte_cycles_vmware_tsc_map;
 
@@ -230,13 +227,6 @@ eal_clean_runtime_dir(void)
 	return -1;
 }
 
-/* Return user provided mbuf pool ops name */
-const char *
-rte_eal_mbuf_user_pool_ops(void)
-{
-	return internal_config.user_mbuf_pool_ops_name;
-}
-
 /* parse a sysfs (or other) file containing one integer value */
 int
 eal_parse_sysfs_value(const char *filename, unsigned long *val)
diff --git a/lib/librte_eal/windows/eal.c b/lib/librte_eal/windows/eal.c
index 2a05f9e0da..daa238d416 100644
--- a/lib/librte_eal/windows/eal.c
+++ b/lib/librte_eal/windows/eal.c
@@ -35,9 +35,6 @@ static int mem_cfg_fd = -1;
 /* internal configuration (per-core) */
 struct lcore_config lcore_config[RTE_MAX_LCORE];
 
-/* internal configuration */
-struct internal_config internal_config;
-
 /* Detect if we are a primary or a secondary process */
 enum rte_proc_type_t
 eal_proc_type_detect(void)
-- 
2.16.1.windows.4

[dpdk-dev] [PATCH v2 0/3] Support librte_mbuf on Windows

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

This patchset enables compilation and build of librte_mbuf on Windows.

---
Depends-on: series-10550 ("build mempool on Windows")

v2: 
* Remove unneeded endianness macro check (ThomasM)
* Fix export list name order (ThomasM)
* Remove __emutls_v.* MinGW export as it is no longer needed.
---

Tal Shnaiderman (3):
  eal: correct OS headers in rte_byteorder.h
  eal: export needed functions for mbuf
  mbuf: build on Windows

 lib/librte_eal/common/meson.build              | 1 +
 lib/librte_eal/include/generic/rte_byteorder.h | 2 +-
 lib/librte_eal/rte_eal_exports.def             | 3 +++
 lib/meson.build                                | 4 ++--
 4 files changed, 7 insertions(+), 3 deletions(-)

-- 
2.16.1.windows.4

[dpdk-dev] [PATCH v2 1/3] eal: correct OS headers in rte_byteorder.h

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Inclusion of the endian.h header is set only for Linux OS.

Windows endlessness will be determined by the predefined
__BYTE_ORDER__ macro.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/librte_eal/include/generic/rte_byteorder.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_eal/include/generic/rte_byteorder.h b/lib/librte_eal/include/generic/rte_byteorder.h
index 9ca960932f..a67e1d70d9 100644
--- a/lib/librte_eal/include/generic/rte_byteorder.h
+++ b/lib/librte_eal/include/generic/rte_byteorder.h
@@ -17,7 +17,7 @@
 #include <stdint.h>
 #ifdef RTE_EXEC_ENV_FREEBSD
 #include <sys/endian.h>
-#else
+#elif defined RTE_EXEC_ENV_LINUX
 #include <endian.h>
 #endif
 
-- 
2.16.1.windows.4

[dpdk-dev] [PATCH v2 2/3] eal: export needed functions for mbuf

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Export needed eal functions used by the lib.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/librte_eal/common/meson.build  | 1 +
 lib/librte_eal/rte_eal_exports.def | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/lib/librte_eal/common/meson.build b/lib/librte_eal/common/meson.build
index dc9b1d2feb..c1d9f21488 100644
--- a/lib/librte_eal/common/meson.build
+++ b/lib/librte_eal/common/meson.build
@@ -14,6 +14,7 @@ if is_windows
 		'eal_common_dynmem.c',
 		'eal_common_errno.c',
 		'eal_common_fbarray.c',
+		'eal_common_hexdump.c',
 		'eal_common_launch.c',
 		'eal_common_lcore.c',
 		'eal_common_log.c',
diff --git a/lib/librte_eal/rte_eal_exports.def b/lib/librte_eal/rte_eal_exports.def
index 984c5d1698..69204a92c6 100644
--- a/lib/librte_eal/rte_eal_exports.def
+++ b/lib/librte_eal/rte_eal_exports.def
@@ -3,6 +3,7 @@ EXPORTS
 	__rte_trace_mem_per_thread_alloc
 	__rte_trace_point_emit_field
 	__rte_trace_point_register
+	per_lcore__lcore_id
 	per_lcore__rte_errno
 	per_lcore_trace_mem
 	per_lcore_trace_point_sz
@@ -17,6 +18,7 @@ EXPORTS
 	rte_eal_has_pci
 	rte_eal_init
 	rte_eal_iova_mode
+	rte_eal_mbuf_user_pool_ops
 	rte_eal_mp_remote_launch
 	rte_eal_mp_wait_lcore
 	rte_eal_process_type
@@ -26,6 +28,7 @@ EXPORTS
 	rte_eal_tailq_register
 	rte_eal_using_phys_addrs
 	rte_free
+	rte_hexdump
 	rte_malloc
 	rte_malloc_dump_stats
 	rte_malloc_get_socket_stats
-- 
2.16.1.windows.4

[dpdk-dev] [PATCH v2 3/3] mbuf: build on Windows

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Build the lib for Windows.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/meson.build b/lib/meson.build
index a9a5be0e5e..dcee2e68ec 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -39,8 +39,8 @@ if is_windows
 	libraries = [
 		'kvargs','eal',
 		'ring',
-		'mempool', 'pci',
-	] # only supported libraries for windows
+		'mempool', 'mbuf', 'pci', # core
+		] # only supported libraries for windows
 endif
 
 default_cflags = machine_args
-- 
2.16.1.windows.4

Re: [dpdk-dev] [PATCH v2 0/3] Support librte_mbuf on Windows

[Thomas Monjalon]

> Tal Shnaiderman (3):
>   eal: correct OS headers in rte_byteorder.h
>   eal: export needed functions for mbuf
>   mbuf: build on Windows

Applied, thanks

[dpdk-dev] [PATCH 2/4] eal: set byteorder in Windows to little endian

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Set the endianness in Windows to RTE_LITTLE_ENDIAN as support
for Windows is limited to x86 architecture for now.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/librte_eal/include/generic/rte_byteorder.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/include/generic/rte_byteorder.h b/lib/librte_eal/include/generic/rte_byteorder.h
index 9ca960932f..6cfdf68731 100644
--- a/lib/librte_eal/include/generic/rte_byteorder.h
+++ b/lib/librte_eal/include/generic/rte_byteorder.h
@@ -17,8 +17,10 @@
 #include <stdint.h>
 #ifdef RTE_EXEC_ENV_FREEBSD
 #include <sys/endian.h>
-#else
+#elif defined RTE_EXEC_ENV_LINUX
 #include <endian.h>
+#elif defined RTE_EXEC_ENV_WINDOWS && !defined RTE_BYTE_ORDER
+#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
 #endif
 
 #include <rte_common.h>
-- 
2.16.1.windows.4

Re: [dpdk-dev] [PATCH 2/4] eal: set byteorder in Windows to little endian

[Thomas Monjalon]

01/06/2020 11:38, talshn@mellanox.com:
> From: Tal Shnaiderman <talshn@mellanox.com>
> 
> Set the endianness in Windows to RTE_LITTLE_ENDIAN as support
> for Windows is limited to x86 architecture for now.
> 
> Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> ---
> --- a/lib/librte_eal/include/generic/rte_byteorder.h
> +++ b/lib/librte_eal/include/generic/rte_byteorder.h
>  #ifdef RTE_EXEC_ENV_FREEBSD
>  #include <sys/endian.h>
> -#else
> +#elif defined RTE_EXEC_ENV_LINUX
>  #include <endian.h>
> +#elif defined RTE_EXEC_ENV_WINDOWS && !defined RTE_BYTE_ORDER

Why "&& !defined RTE_BYTE_ORDER" ?
How can it be defined earlier?

> +#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
>  #endif

Re: [dpdk-dev] [PATCH 2/4] eal: set byteorder in Windows to little endian

[Tal Shnaiderman]

> Subject: Re: [dpdk-dev] [PATCH 2/4] eal: set byteorder in Windows to little
> endian
> 
> 01/06/2020 11:38, talshn@mellanox.com:
> > From: Tal Shnaiderman <talshn@mellanox.com>
> >
> > Set the endianness in Windows to RTE_LITTLE_ENDIAN as support for
> > Windows is limited to x86 architecture for now.
> >
> > Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> > ---
> > --- a/lib/librte_eal/include/generic/rte_byteorder.h
> > +++ b/lib/librte_eal/include/generic/rte_byteorder.h
> >  #ifdef RTE_EXEC_ENV_FREEBSD
> >  #include <sys/endian.h>
> > -#else
> > +#elif defined RTE_EXEC_ENV_LINUX
> >  #include <endian.h>
> > +#elif defined RTE_EXEC_ENV_WINDOWS && !defined RTE_BYTE_ORDER
> 
> Why "&& !defined RTE_BYTE_ORDER" ?
> How can it be defined earlier?
> 

You're right, it's unneeded since it is defined later on.

The entire "#elif defined RTE_EXEC_ENV_WINDOWS" section could be removed actually, 
looks like both clang and MinGW contain the predefined __BYTE_ORDER__ macro and detect the right endianness on compile time.

> > +#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
> >  #endif
> 
> 
> 

[dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Export needed eal functions used by the lib.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/librte_eal/common/meson.build  | 1 +
 lib/librte_eal/rte_eal_exports.def | 3 +++
 lib/librte_eal/rte_eal_version.map | 1 +
 3 files changed, 5 insertions(+)

diff --git a/lib/librte_eal/common/meson.build b/lib/librte_eal/common/meson.build
index cf4b9e56eb..530e06033b 100644
--- a/lib/librte_eal/common/meson.build
+++ b/lib/librte_eal/common/meson.build
@@ -12,6 +12,7 @@ if is_windows
 		'eal_common_dynmem.c',
 		'eal_common_errno.c',
 		'eal_common_fbarray.c',
+		'eal_common_hexdump.c',
 		'eal_common_launch.c',
 		'eal_common_lcore.c',
 		'eal_common_log.c',
diff --git a/lib/librte_eal/rte_eal_exports.def b/lib/librte_eal/rte_eal_exports.def
index 9ebf0d641a..9b2ebbcdf5 100644
--- a/lib/librte_eal/rte_eal_exports.def
+++ b/lib/librte_eal/rte_eal_exports.def
@@ -3,6 +3,7 @@ EXPORTS
 	per_lcore__rte_errno
 	rte_calloc
 	rte_calloc_socket
+	per_lcore__lcore_id
 	per_lcore__rte_errno
 	rte_bus_register
 	rte_dev_is_probed
@@ -12,6 +13,7 @@ EXPORTS
 	rte_eal_has_hugepages
 	rte_eal_init
 	rte_eal_iova_mode
+	rte_eal_mbuf_user_pool_ops
 	rte_eal_mp_remote_launch
 	rte_eal_mp_wait_lcore
 	rte_eal_process_type
@@ -20,6 +22,7 @@ EXPORTS
 	rte_eal_tailq_register
 	rte_eal_using_phys_addrs
 	rte_free
+	rte_hexdump
 	rte_log
 	rte_malloc
 	rte_malloc_dump_stats
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index 361d4808f5..8ecef1ace1 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -394,4 +394,5 @@ EXPERIMENTAL {
 	rte_mem_unmap;
 	__emutls_v.per_lcore__rte_errno;
 	__rte_trace_mem_per_thread_alloc;
+	__emutls_v.per_lcore__lcore_id;
 };
-- 
2.16.1.windows.4

Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[Thomas Monjalon]

01/06/2020 11:38, talshn@mellanox.com:
> From: Tal Shnaiderman <talshn@mellanox.com>
> 
> Export needed eal functions used by the lib.
> 
> Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> ---
> --- a/lib/librte_eal/rte_eal_exports.def
> +++ b/lib/librte_eal/rte_eal_exports.def
> @@ -3,6 +3,7 @@ EXPORTS
>  	per_lcore__rte_errno
>  	rte_calloc
>  	rte_calloc_socket
> +	per_lcore__lcore_id
[...]
> --- a/lib/librte_eal/rte_eal_version.map
> +++ b/lib/librte_eal/rte_eal_version.map
> @@ -394,4 +394,5 @@ EXPERIMENTAL {
>  	rte_mem_unmap;
>  	__emutls_v.per_lcore__rte_errno;
>  	__rte_trace_mem_per_thread_alloc;
> +	__emutls_v.per_lcore__lcore_id;

I'm surprised about this one in the Linux/BSD map.
Can it be removed?

Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[Tal Shnaiderman]

> Subject: Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf
> 
> 01/06/2020 11:38, talshn@mellanox.com:
> > From: Tal Shnaiderman <talshn@mellanox.com>
> >
> > Export needed eal functions used by the lib.
> >
> > Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> > ---
> > --- a/lib/librte_eal/rte_eal_exports.def
> > +++ b/lib/librte_eal/rte_eal_exports.def
> > @@ -3,6 +3,7 @@ EXPORTS
> >  	per_lcore__rte_errno
> >  	rte_calloc
> >  	rte_calloc_socket
> > +	per_lcore__lcore_id
> [...]
> > --- a/lib/librte_eal/rte_eal_version.map
> > +++ b/lib/librte_eal/rte_eal_version.map
> > @@ -394,4 +394,5 @@ EXPERIMENTAL {
> >  	rte_mem_unmap;
> >  	__emutls_v.per_lcore__rte_errno;
> >  	__rte_trace_mem_per_thread_alloc;
> > +	__emutls_v.per_lcore__lcore_id;
> 
> I'm surprised about this one in the Linux/BSD map.
> Can it be removed?
> 

It is needed for the MingGW build which requires the __emutls_v. prefix.

Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[Thomas Monjalon]

16/06/2020 10:33, Tal Shnaiderman:
> > 01/06/2020 11:38, talshn@mellanox.com:
> > > From: Tal Shnaiderman <talshn@mellanox.com>
> > >
> > > Export needed eal functions used by the lib.
> > >
> > > Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> > > ---
> > > --- a/lib/librte_eal/rte_eal_exports.def
> > > +++ b/lib/librte_eal/rte_eal_exports.def
> > > @@ -3,6 +3,7 @@ EXPORTS
> > >  	per_lcore__rte_errno
> > >  	rte_calloc
> > >  	rte_calloc_socket
> > > +	per_lcore__lcore_id
> > [...]
> > > --- a/lib/librte_eal/rte_eal_version.map
> > > +++ b/lib/librte_eal/rte_eal_version.map
> > > @@ -394,4 +394,5 @@ EXPERIMENTAL {
> > >  	rte_mem_unmap;
> > >  	__emutls_v.per_lcore__rte_errno;
> > >  	__rte_trace_mem_per_thread_alloc;
> > > +	__emutls_v.per_lcore__lcore_id;

Note the alphabetical order is not respected above.

> > I'm surprised about this one in the Linux/BSD map.
> > Can it be removed?
> 
> It is needed for the MingGW build which requires the __emutls_v. prefix.

We already have per_lcore__lcore_id and per_lcore__rte_errno
for Linux and FreeBSD.
The prefix __emutls_v. for MinGW looks wrong.
If it is really required, it should be added automatically
in my opinion.
I think we can do it in buildtools/map_to_def.py
by adding this prefix to per_lcore__ when required.

Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[Dmitry Kozlyuk]

On Tue, 16 Jun 2020 10:45:49 +0200
Thomas Monjalon <thomas@monjalon.net> wrote:

> 16/06/2020 10:33, Tal Shnaiderman:
> > > 01/06/2020 11:38, talshn@mellanox.com:  
> > > > From: Tal Shnaiderman <talshn@mellanox.com>
> > > >
> > > > Export needed eal functions used by the lib.
> > > >
> > > > Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> > > > ---
> > > > --- a/lib/librte_eal/rte_eal_exports.def
> > > > +++ b/lib/librte_eal/rte_eal_exports.def
> > > > @@ -3,6 +3,7 @@ EXPORTS
> > > >  	per_lcore__rte_errno
> > > >  	rte_calloc
> > > >  	rte_calloc_socket
> > > > +	per_lcore__lcore_id  
> > > [...]  
> > > > --- a/lib/librte_eal/rte_eal_version.map
> > > > +++ b/lib/librte_eal/rte_eal_version.map
> > > > @@ -394,4 +394,5 @@ EXPERIMENTAL {
> > > >  	rte_mem_unmap;
> > > >  	__emutls_v.per_lcore__rte_errno;
> > > >  	__rte_trace_mem_per_thread_alloc;
> > > > +	__emutls_v.per_lcore__lcore_id;  
> 
> Note the alphabetical order is not respected above.
> 
> > > I'm surprised about this one in the Linux/BSD map.
> > > Can it be removed?  
> > 
> > It is needed for the MingGW build which requires the __emutls_v. prefix.  
> 
> We already have per_lcore__lcore_id and per_lcore__rte_errno
> for Linux and FreeBSD.
> The prefix __emutls_v. for MinGW looks wrong.
> If it is really required, it should be added automatically
> in my opinion.
> I think we can do it in buildtools/map_to_def.py
> by adding this prefix to per_lcore__ when required.

MinGW doesn't use .def, it's for link.exe only (used by Clang). To my
understanding, multiple .map files can be used [1]. The "overlay .map" for
MinGW can then be generated from the generic .map by a separate script.

[1]: https://github.com/PlushBeaver/dpdk/blob/windows/lib/meson.build#L174

-- 
Dmitry Kozlyuk

Re: [dpdk-dev] [PATCH 3/4] eal: export needed functions for mbuf

[Thomas Monjalon]

16/06/2020 11:26, Dmitry Kozlyuk:
> Thomas Monjalon <thomas@monjalon.net> wrote:
> > 16/06/2020 10:33, Tal Shnaiderman:
> > > > 01/06/2020 11:38, talshn@mellanox.com:  
> > > > > From: Tal Shnaiderman <talshn@mellanox.com>
> > > > >
> > > > > Export needed eal functions used by the lib.
> > > > >
> > > > > Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
> > > > > ---
> > > > > --- a/lib/librte_eal/rte_eal_version.map
> > > > > +++ b/lib/librte_eal/rte_eal_version.map
> > > > > @@ -394,4 +394,5 @@ EXPERIMENTAL {
> > > > >  	rte_mem_unmap;
> > > > >  	__emutls_v.per_lcore__rte_errno;
> > > > >  	__rte_trace_mem_per_thread_alloc;
> > > > > +	__emutls_v.per_lcore__lcore_id;  
> > 
> > We already have per_lcore__lcore_id and per_lcore__rte_errno
> > for Linux and FreeBSD.
> > The prefix __emutls_v. for MinGW looks wrong.
> > If it is really required, it should be added automatically
> > in my opinion.
> > I think we can do it in buildtools/map_to_def.py
> > by adding this prefix to per_lcore__ when required.
> 
> MinGW doesn't use .def, it's for link.exe only (used by Clang). To my
> understanding, multiple .map files can be used [1]. The "overlay .map" for
> MinGW can then be generated from the generic .map by a separate script.
> 
> [1]: https://github.com/PlushBeaver/dpdk/blob/windows/lib/meson.build#L174

Yes please generate a map with the fixed prefix.
It can be done in a script similar to buildtools/map_to_def.py, right?

[dpdk-dev] [PATCH 4/4] mbuf: build on Windows

[talshn]

From: Tal Shnaiderman <talshn@mellanox.com>

Build the lib for Windows.

Signed-off-by: Tal Shnaiderman <talshn@mellanox.com>
---
 lib/meson.build | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/meson.build b/lib/meson.build
index 5486628625..e1a729da8a 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -40,8 +40,7 @@ if is_windows
 		'kvargs',
 		'eal',
 		'ring',
-		'mempool',
-		'pci',
+		'mempool', 'mbuf', 'pci', # core
 		] # only supported libraries for windows
 endif
 
-- 
2.16.1.windows.4