diff mbox

[1/2] blockdev: Add dynamic generation of module_block.h

Message ID 1466016055-31351-2-git-send-email-clord@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

clord@redhat.com June 15, 2016, 6:40 p.m. UTC
From: Marc Mari <address@hidden>

To simplify the addition of new block modules, add a script that generates
include/qemu/module_block.h automatically from the modules' source code.

This script assumes that the QEMU coding style rules are followed.

Signed-off-by: Marc Marí <address@hidden>
Signed-off-by: Colin Lord <clord@redhat.com>
---
 .gitignore                      |   1 +
 Makefile                        |   8 +++
 scripts/modules/module_block.py | 134 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 143 insertions(+)
 create mode 100644 scripts/modules/module_block.py

Comments

Paolo Bonzini June 15, 2016, 10:48 p.m. UTC | #1
On 15/06/2016 20:40, Colin Lord wrote:
> +def add_module(fhader, library, format_name, protocol_name,

fhader looks like a typo.

Paolo

> +                probe, probe_device):
> +    lines = []
> +    lines.append('.library_name = "' + library + '",')
> +    if format_name != "":
> +        lines.append('.format_name = "' + format_name + '",')
> +    if protocol_name != "":
> +        lines.append('.protocol_name = "' + protocol_name + '",')
> +    if probe:
> +        lines.append('.has_probe = true,')
> +    if probe_device:
> +        lines.append('.has_probe_device = true,')
> +
> +    text = '\n\t'.join(lines)
> +    fheader.write('\n\t{\n\t' + text + '\n\t},')
Fam Zheng June 16, 2016, 4:59 a.m. UTC | #2
On Wed, 06/15 14:40, Colin Lord wrote:
> From: Marc Mari <address@hidden>
> 
> To simplify the addition of new block modules, add a script that generates
> include/qemu/module_block.h automatically from the modules' source code.
> 
> This script assumes that the QEMU coding style rules are followed.
> 
> Signed-off-by: Marc Marí <address@hidden>
> Signed-off-by: Colin Lord <clord@redhat.com>
> ---
>  .gitignore                      |   1 +
>  Makefile                        |   8 +++
>  scripts/modules/module_block.py | 134 ++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 143 insertions(+)
>  create mode 100644 scripts/modules/module_block.py
> 
> diff --git a/.gitignore b/.gitignore
> index 38ee1c5..06aa064 100644
> --- a/.gitignore
> +++ b/.gitignore
> @@ -110,3 +110,4 @@ tags
>  TAGS
>  docker-src.*
>  *~
> +/include/qemu/module_block.h
> diff --git a/Makefile b/Makefile
> index ed4032a..8f8b6a2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -76,6 +76,8 @@ GENERATED_HEADERS += trace/generated-ust-provider.h
>  GENERATED_SOURCES += trace/generated-ust.c
>  endif
>  
> +GENERATED_HEADERS += include/qemu/module_block.h
> +
>  # Don't try to regenerate Makefile or configure
>  # We don't generate any of them
>  Makefile: ;
> @@ -352,6 +354,12 @@ ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) libqemuutil.a libqemustub.a
>  ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) libqemuutil.a libqemustub.a
>  	$(call LINK, $^)
>  
> +include/qemu/module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
> +	$(call quiet-command,$(PYTHON) \
> +$(SRC_PATH)/scripts/modules/module_block.py \
> +	$(SRC_PATH)/"./include/qemu/" $(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
> +	"  GEN   $@")
> +
>  clean:
>  # avoid old build problems by removing potentially incorrect old files
>  	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
> diff --git a/scripts/modules/module_block.py b/scripts/modules/module_block.py
> new file mode 100644
> index 0000000..005bc49
> --- /dev/null
> +++ b/scripts/modules/module_block.py
> @@ -0,0 +1,134 @@
> +#!/usr/bin/python
> +#
> +# Module information generator
> +#
> +# Copyright Red Hat, Inc. 2015
> +#
> +# Authors:
> +#  Marc Mari <address@hidden>

Address hidden seems like a mistake during copy from web. :)

One more below..

> +#
> +# This work is licensed under the terms of the GNU GPL, version 2.
> +# See the COPYING file in the top-level directory.
> +
> +from __future__ import print_function
> +import sys
> +import os
> +
> +def get_string_struct(line):
> +    data = line.split()
> +
> +    # data[0] -> struct element name
> +    # data[1] -> =
> +    # data[2] -> value
> +
> +    return data[2].replace('"', '')[:-1]
> +
> +def add_module(fhader, library, format_name, protocol_name,
> +                probe, probe_device):
> +    lines = []
> +    lines.append('.library_name = "' + library + '",')
> +    if format_name != "":
> +        lines.append('.format_name = "' + format_name + '",')
> +    if protocol_name != "":
> +        lines.append('.protocol_name = "' + protocol_name + '",')
> +    if probe:
> +        lines.append('.has_probe = true,')
> +    if probe_device:
> +        lines.append('.has_probe_device = true,')
> +
> +    text = '\n\t'.join(lines)
> +    fheader.write('\n\t{\n\t' + text + '\n\t},')
> +
> +def process_file(fheader, filename):
> +    # This parser assumes the coding style rules are being followed
> +    with open(filename, "r") as cfile:
> +        found_something = False
> +        found_start = False
> +        library, _ = os.path.splitext(os.path.basename(filename))
> +        for line in cfile:
> +            if found_start:
> +                line = line.replace('\n', '')
> +                if line.find(".format_name") != -1:
> +                    format_name = get_string_struct(line)
> +                elif line.find(".protocol_name") != -1:
> +                    protocol_name = get_string_struct(line)
> +                elif line.find(".bdrv_probe") != -1:
> +                    probe = True
> +                elif line.find(".bdrv_probe_device") != -1:
> +                    probe_device = True
> +                elif line == "};":
> +                    add_module(fheader, library, format_name, protocol_name,
> +                                probe, probe_device)
> +                    found_start = False
> +            elif line.find("static BlockDriver") != -1:
> +                found_something = True
> +                found_start = True
> +                format_name = ""
> +                protocol_name = ""
> +                probe = False
> +                probe_device = False
> +
> +        if not found_something:
> +            print("No BlockDriver struct found in " + filename + ". \
> +                    Is this really a module?", file=sys.stderr)
> +            sys.exit(1)
> +
> +def print_top(fheader):
> +    fheader.write('''/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
> +/*
> + * QEMU Block Module Infrastructure
> + *
> + * Copyright Red Hat, Inc. 2015
> + *
> + * Authors:
> + *  Marc Mari       <address@hidden>

Here!

> + *
> + * This work is licensed under the terms of the GNU GPL, version 2.  See
> + * the COPYING file in the top-level directory.
> + *
> + */
> +
> +''')
> +
> +    fheader.write('''#ifndef QEMU_MODULE_BLOCK_H
> +#define QEMU_MODULE_BLOCK_H
> +
> +#include "qemu-common.h"
> +
> +static const struct {
> +    const char *format_name;
> +    const char *protocol_name;
> +    const char *library_name;
> +    bool has_probe;
> +    bool has_probe_device;
> +} block_driver_modules[] = {''')
> +
> +def print_bottom(fheader):
> +    fheader.write('''
> +};
> +
> +#endif
> +''')
> +
> +# First argument: output folder
> +# All other arguments: modules source files (.c)
> +output_dir = sys.argv[1]
> +if not os.path.isdir(output_dir):
> +    print("Folder " + output_dir + " does not exist", file=sys.stderr)
> +    sys.exit(1)
> +
> +path = output_dir + 'module_block.h'
> +
> +with open(path, 'w') as fheader:
> +    print_top(fheader)
> +
> +    for filename in sys.argv[2:]:
> +        if os.path.isfile(filename):
> +            process_file(fheader, filename)
> +        else:
> +            print("File " + filename + " does not exist.", file=sys.stderr)
> +            sys.exit(1)
> +
> +    print_bottom(fheader)
> +
> +sys.exit(0)
> -- 
> 2.5.5
> 
>
clord@redhat.com June 16, 2016, 1:57 p.m. UTC | #3
On 06/16/2016 12:59 AM, Fam Zheng wrote:
> On Wed, 06/15 14:40, Colin Lord wrote:
>> From: Marc Mari <address@hidden>
>>
>> To simplify the addition of new block modules, add a script that generates
>> include/qemu/module_block.h automatically from the modules' source code.
>>
>> This script assumes that the QEMU coding style rules are followed.
>>
>> Signed-off-by: Marc Marí <address@hidden>
>> Signed-off-by: Colin Lord <clord@redhat.com>
>> ---
>>  .gitignore                      |   1 +
>>  Makefile                        |   8 +++
>>  scripts/modules/module_block.py | 134 ++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 143 insertions(+)
>>  create mode 100644 scripts/modules/module_block.py
>>
>> diff --git a/.gitignore b/.gitignore
>> index 38ee1c5..06aa064 100644
>> --- a/.gitignore
>> +++ b/.gitignore
>> @@ -110,3 +110,4 @@ tags
>>  TAGS
>>  docker-src.*
>>  *~
>> +/include/qemu/module_block.h
>> diff --git a/Makefile b/Makefile
>> index ed4032a..8f8b6a2 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -76,6 +76,8 @@ GENERATED_HEADERS += trace/generated-ust-provider.h
>>  GENERATED_SOURCES += trace/generated-ust.c
>>  endif
>>  
>> +GENERATED_HEADERS += include/qemu/module_block.h
>> +
>>  # Don't try to regenerate Makefile or configure
>>  # We don't generate any of them
>>  Makefile: ;
>> @@ -352,6 +354,12 @@ ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) libqemuutil.a libqemustub.a
>>  ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) libqemuutil.a libqemustub.a
>>  	$(call LINK, $^)
>>  
>> +include/qemu/module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
>> +	$(call quiet-command,$(PYTHON) \
>> +$(SRC_PATH)/scripts/modules/module_block.py \
>> +	$(SRC_PATH)/"./include/qemu/" $(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
>> +	"  GEN   $@")
>> +
>>  clean:
>>  # avoid old build problems by removing potentially incorrect old files
>>  	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
>> diff --git a/scripts/modules/module_block.py b/scripts/modules/module_block.py
>> new file mode 100644
>> index 0000000..005bc49
>> --- /dev/null
>> +++ b/scripts/modules/module_block.py
>> @@ -0,0 +1,134 @@
>> +#!/usr/bin/python
>> +#
>> +# Module information generator
>> +#
>> +# Copyright Red Hat, Inc. 2015
>> +#
>> +# Authors:
>> +#  Marc Mari <address@hidden>
> 
> Address hidden seems like a mistake during copy from web. :)
> 
> One more below..
> 

Yep, I didn't have the original emails (only the web archives) and I
didn't realize it wasn't supposed to look like that until I sent it out.
I'll fix it for the next version.

>> +#
>> +# This work is licensed under the terms of the GNU GPL, version 2.
>> +# See the COPYING file in the top-level directory.
>> +
>> +from __future__ import print_function
>> +import sys
>> +import os
>> +
>> +def get_string_struct(line):
>> +    data = line.split()
>> +
>> +    # data[0] -> struct element name
>> +    # data[1] -> =
>> +    # data[2] -> value
>> +
>> +    return data[2].replace('"', '')[:-1]
>> +
>> +def add_module(fhader, library, format_name, protocol_name,
>> +                probe, probe_device):
>> +    lines = []
>> +    lines.append('.library_name = "' + library + '",')
>> +    if format_name != "":
>> +        lines.append('.format_name = "' + format_name + '",')
>> +    if protocol_name != "":
>> +        lines.append('.protocol_name = "' + protocol_name + '",')
>> +    if probe:
>> +        lines.append('.has_probe = true,')
>> +    if probe_device:
>> +        lines.append('.has_probe_device = true,')
>> +
>> +    text = '\n\t'.join(lines)
>> +    fheader.write('\n\t{\n\t' + text + '\n\t},')
>> +
>> +def process_file(fheader, filename):
>> +    # This parser assumes the coding style rules are being followed
>> +    with open(filename, "r") as cfile:
>> +        found_something = False
>> +        found_start = False
>> +        library, _ = os.path.splitext(os.path.basename(filename))
>> +        for line in cfile:
>> +            if found_start:
>> +                line = line.replace('\n', '')
>> +                if line.find(".format_name") != -1:
>> +                    format_name = get_string_struct(line)
>> +                elif line.find(".protocol_name") != -1:
>> +                    protocol_name = get_string_struct(line)
>> +                elif line.find(".bdrv_probe") != -1:
>> +                    probe = True
>> +                elif line.find(".bdrv_probe_device") != -1:
>> +                    probe_device = True
>> +                elif line == "};":
>> +                    add_module(fheader, library, format_name, protocol_name,
>> +                                probe, probe_device)
>> +                    found_start = False
>> +            elif line.find("static BlockDriver") != -1:
>> +                found_something = True
>> +                found_start = True
>> +                format_name = ""
>> +                protocol_name = ""
>> +                probe = False
>> +                probe_device = False
>> +
>> +        if not found_something:
>> +            print("No BlockDriver struct found in " + filename + ". \
>> +                    Is this really a module?", file=sys.stderr)
>> +            sys.exit(1)
>> +
>> +def print_top(fheader):
>> +    fheader.write('''/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
>> +/*
>> + * QEMU Block Module Infrastructure
>> + *
>> + * Copyright Red Hat, Inc. 2015
>> + *
>> + * Authors:
>> + *  Marc Mari       <address@hidden>
> 
> Here!
> 
>> + *
>> + * This work is licensed under the terms of the GNU GPL, version 2.  See
>> + * the COPYING file in the top-level directory.
>> + *
>> + */
>> +
>> +''')
>> +
>> +    fheader.write('''#ifndef QEMU_MODULE_BLOCK_H
>> +#define QEMU_MODULE_BLOCK_H
>> +
>> +#include "qemu-common.h"
>> +
>> +static const struct {
>> +    const char *format_name;
>> +    const char *protocol_name;
>> +    const char *library_name;
>> +    bool has_probe;
>> +    bool has_probe_device;
>> +} block_driver_modules[] = {''')
>> +
>> +def print_bottom(fheader):
>> +    fheader.write('''
>> +};
>> +
>> +#endif
>> +''')
>> +
>> +# First argument: output folder
>> +# All other arguments: modules source files (.c)
>> +output_dir = sys.argv[1]
>> +if not os.path.isdir(output_dir):
>> +    print("Folder " + output_dir + " does not exist", file=sys.stderr)
>> +    sys.exit(1)
>> +
>> +path = output_dir + 'module_block.h'
>> +
>> +with open(path, 'w') as fheader:
>> +    print_top(fheader)
>> +
>> +    for filename in sys.argv[2:]:
>> +        if os.path.isfile(filename):
>> +            process_file(fheader, filename)
>> +        else:
>> +            print("File " + filename + " does not exist.", file=sys.stderr)
>> +            sys.exit(1)
>> +
>> +    print_bottom(fheader)
>> +
>> +sys.exit(0)
>> -- 
>> 2.5.5
>>
>>
> 
Colin
Stefan Hajnoczi June 17, 2016, 9:57 a.m. UTC | #4
On Thu, Jun 16, 2016 at 09:57:20AM -0400, Colin Lord wrote:
> On 06/16/2016 12:59 AM, Fam Zheng wrote:
> > On Wed, 06/15 14:40, Colin Lord wrote:
> >> From: Marc Mari <address@hidden>
> >>
> >> To simplify the addition of new block modules, add a script that generates
> >> include/qemu/module_block.h automatically from the modules' source code.
> >>
> >> This script assumes that the QEMU coding style rules are followed.
> >>
> >> Signed-off-by: Marc Marí <address@hidden>
> >> Signed-off-by: Colin Lord <clord@redhat.com>
> >> ---
> >>  .gitignore                      |   1 +
> >>  Makefile                        |   8 +++
> >>  scripts/modules/module_block.py | 134 ++++++++++++++++++++++++++++++++++++++++
> >>  3 files changed, 143 insertions(+)
> >>  create mode 100644 scripts/modules/module_block.py
> >>
> >> diff --git a/.gitignore b/.gitignore
> >> index 38ee1c5..06aa064 100644
> >> --- a/.gitignore
> >> +++ b/.gitignore
> >> @@ -110,3 +110,4 @@ tags
> >>  TAGS
> >>  docker-src.*
> >>  *~
> >> +/include/qemu/module_block.h
> >> diff --git a/Makefile b/Makefile
> >> index ed4032a..8f8b6a2 100644
> >> --- a/Makefile
> >> +++ b/Makefile
> >> @@ -76,6 +76,8 @@ GENERATED_HEADERS += trace/generated-ust-provider.h
> >>  GENERATED_SOURCES += trace/generated-ust.c
> >>  endif
> >>  
> >> +GENERATED_HEADERS += include/qemu/module_block.h
> >> +
> >>  # Don't try to regenerate Makefile or configure
> >>  # We don't generate any of them
> >>  Makefile: ;
> >> @@ -352,6 +354,12 @@ ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) libqemuutil.a libqemustub.a
> >>  ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) libqemuutil.a libqemustub.a
> >>  	$(call LINK, $^)
> >>  
> >> +include/qemu/module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
> >> +	$(call quiet-command,$(PYTHON) \
> >> +$(SRC_PATH)/scripts/modules/module_block.py \
> >> +	$(SRC_PATH)/"./include/qemu/" $(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
> >> +	"  GEN   $@")
> >> +
> >>  clean:
> >>  # avoid old build problems by removing potentially incorrect old files
> >>  	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
> >> diff --git a/scripts/modules/module_block.py b/scripts/modules/module_block.py
> >> new file mode 100644
> >> index 0000000..005bc49
> >> --- /dev/null
> >> +++ b/scripts/modules/module_block.py
> >> @@ -0,0 +1,134 @@
> >> +#!/usr/bin/python
> >> +#
> >> +# Module information generator
> >> +#
> >> +# Copyright Red Hat, Inc. 2015
> >> +#
> >> +# Authors:
> >> +#  Marc Mari <address@hidden>
> > 
> > Address hidden seems like a mistake during copy from web. :)
> > 
> > One more below..
> > 
> 
> Yep, I didn't have the original emails (only the web archives) and I
> didn't realize it wasn't supposed to look like that until I sent it out.
> I'll fix it for the next version.

Mailing list archives are available here in mbox format:

ftp://lists.gnu.org/qemu-devel/
diff mbox

Patch

diff --git a/.gitignore b/.gitignore
index 38ee1c5..06aa064 100644
--- a/.gitignore
+++ b/.gitignore
@@ -110,3 +110,4 @@  tags
 TAGS
 docker-src.*
 *~
+/include/qemu/module_block.h
diff --git a/Makefile b/Makefile
index ed4032a..8f8b6a2 100644
--- a/Makefile
+++ b/Makefile
@@ -76,6 +76,8 @@  GENERATED_HEADERS += trace/generated-ust-provider.h
 GENERATED_SOURCES += trace/generated-ust.c
 endif
 
+GENERATED_HEADERS += include/qemu/module_block.h
+
 # Don't try to regenerate Makefile or configure
 # We don't generate any of them
 Makefile: ;
@@ -352,6 +354,12 @@  ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) libqemuutil.a libqemustub.a
 ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) libqemuutil.a libqemustub.a
 	$(call LINK, $^)
 
+include/qemu/module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
+	$(call quiet-command,$(PYTHON) \
+$(SRC_PATH)/scripts/modules/module_block.py \
+	$(SRC_PATH)/"./include/qemu/" $(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
+	"  GEN   $@")
+
 clean:
 # avoid old build problems by removing potentially incorrect old files
 	rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
diff --git a/scripts/modules/module_block.py b/scripts/modules/module_block.py
new file mode 100644
index 0000000..005bc49
--- /dev/null
+++ b/scripts/modules/module_block.py
@@ -0,0 +1,134 @@ 
+#!/usr/bin/python
+#
+# Module information generator
+#
+# Copyright Red Hat, Inc. 2015
+#
+# Authors:
+#  Marc Mari <address@hidden>
+#
+# This work is licensed under the terms of the GNU GPL, version 2.
+# See the COPYING file in the top-level directory.
+
+from __future__ import print_function
+import sys
+import os
+
+def get_string_struct(line):
+    data = line.split()
+
+    # data[0] -> struct element name
+    # data[1] -> =
+    # data[2] -> value
+
+    return data[2].replace('"', '')[:-1]
+
+def add_module(fhader, library, format_name, protocol_name,
+                probe, probe_device):
+    lines = []
+    lines.append('.library_name = "' + library + '",')
+    if format_name != "":
+        lines.append('.format_name = "' + format_name + '",')
+    if protocol_name != "":
+        lines.append('.protocol_name = "' + protocol_name + '",')
+    if probe:
+        lines.append('.has_probe = true,')
+    if probe_device:
+        lines.append('.has_probe_device = true,')
+
+    text = '\n\t'.join(lines)
+    fheader.write('\n\t{\n\t' + text + '\n\t},')
+
+def process_file(fheader, filename):
+    # This parser assumes the coding style rules are being followed
+    with open(filename, "r") as cfile:
+        found_something = False
+        found_start = False
+        library, _ = os.path.splitext(os.path.basename(filename))
+        for line in cfile:
+            if found_start:
+                line = line.replace('\n', '')
+                if line.find(".format_name") != -1:
+                    format_name = get_string_struct(line)
+                elif line.find(".protocol_name") != -1:
+                    protocol_name = get_string_struct(line)
+                elif line.find(".bdrv_probe") != -1:
+                    probe = True
+                elif line.find(".bdrv_probe_device") != -1:
+                    probe_device = True
+                elif line == "};":
+                    add_module(fheader, library, format_name, protocol_name,
+                                probe, probe_device)
+                    found_start = False
+            elif line.find("static BlockDriver") != -1:
+                found_something = True
+                found_start = True
+                format_name = ""
+                protocol_name = ""
+                probe = False
+                probe_device = False
+
+        if not found_something:
+            print("No BlockDriver struct found in " + filename + ". \
+                    Is this really a module?", file=sys.stderr)
+            sys.exit(1)
+
+def print_top(fheader):
+    fheader.write('''/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
+/*
+ * QEMU Block Module Infrastructure
+ *
+ * Copyright Red Hat, Inc. 2015
+ *
+ * Authors:
+ *  Marc Mari       <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+''')
+
+    fheader.write('''#ifndef QEMU_MODULE_BLOCK_H
+#define QEMU_MODULE_BLOCK_H
+
+#include "qemu-common.h"
+
+static const struct {
+    const char *format_name;
+    const char *protocol_name;
+    const char *library_name;
+    bool has_probe;
+    bool has_probe_device;
+} block_driver_modules[] = {''')
+
+def print_bottom(fheader):
+    fheader.write('''
+};
+
+#endif
+''')
+
+# First argument: output folder
+# All other arguments: modules source files (.c)
+output_dir = sys.argv[1]
+if not os.path.isdir(output_dir):
+    print("Folder " + output_dir + " does not exist", file=sys.stderr)
+    sys.exit(1)
+
+path = output_dir + 'module_block.h'
+
+with open(path, 'w') as fheader:
+    print_top(fheader)
+
+    for filename in sys.argv[2:]:
+        if os.path.isfile(filename):
+            process_file(fheader, filename)
+        else:
+            print("File " + filename + " does not exist.", file=sys.stderr)
+            sys.exit(1)
+
+    print_bottom(fheader)
+
+sys.exit(0)