package/mono: new package

This patch adds the complete Mono implementation. This patch compiles both the native and managed parts.

---
Changelog:

* Bump to version 3.10.0 (released today!)
* Various build optimization
* Fixing problems with uClibc
* Mono library version chooser added

I tried to merge mono-managed and mono-native in a single package, but crosscompiling and compiling in the same folder without a clean makes a big mess, so I think these packages should remain splitted. Any hint appreciated!

 package/Config.in                                  |  1 +
 package/mono/Config.in                             | 34 ++++++++++++++++++
 package/mono/mono-managed/mono-managed.mk          | 42 ++++++++++++++++++++++
 .../mono-native/mono-native-001-fix_uclibc.patch   | 14 ++++++++
 package/mono/mono-native/mono-native.mk            | 31 ++++++++++++++++
 package/mono/mono.mk                               | 18 ++++++++++
 6 files changed, 140 insertions(+)
 create mode 100644 package/mono/Config.in
 create mode 100644 package/mono/mono-managed/mono-managed.mk
 create mode 100644 package/mono/mono-native/mono-native-001-fix_uclibc.patch
 create mode 100644 package/mono/mono-native/mono-native.mk
 create mode 100644 package/mono/mono.mk

index ea89c96..92cf4b8 100644
@@ -433,6 +433,7 @@ menu "Lua libraries/modules"
 	source "package/xavante/Config.in"
 endmenu
 endif
+	source "package/mono/Config.in"
 	source "package/nodejs/Config.in"
 	source "package/perl/Config.in"
 if BR2_PACKAGE_PERL

new file mode 100644
index 0000000..1b2471e
@@ -0,0 +1,34 @@
+config BR2_PACKAGE_MONO
+	bool "mono"
+	select BR2_STRIP_none
+	depends on (BR2_arm || BR2_armeb || BR2_i386 || BR2_mips \
+		|| BR2_powerpc || BR2_sparc || BR2_x86_64)
+	depends on BR2_INET_IPV6
+	help
+	  An open source, cross-platform, implementation of C#
+	  and the CLR that is binary compatible with Microsoft.NET.
+
+	  http://download.mono-project.com/sources/mono/
+
+if BR2_PACKAGE_MONO
+	config BR2_PACKAGE_MONO_20
+		bool "2.0 .Net Runtime"
+		help
+		  Version 2.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_30
+		bool "3.0 .Net Runtime"
+		help
+		  Version 3.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_40
+		bool "4.0 .Net Runtime"
+		help
+		  Version 4.0 of Mono .Net runtime
+	config BR2_PACKAGE_MONO_45
+		default y
+		bool "4.5 .Net Runtime"
+		help
+		  Version 4.5 of Mono .Net runtime
+endif
+
+comment "mono needs a toolchain w/ IPv6"
+	depends on !BR2_INET_IPV6

new file mode 100644
index 0000000..c82f24b
@@ -0,0 +1,14 @@
+Signed-off-by: Angelo Compagnucci <[email protected]>
+
+diff -purN mono-native-3.8.0.orig/libgc/include/gc.h mono-native-3.8.0/libgc/include/gc.h
+--- mono-native-3.8.0.orig/libgc/include/gc.h	2014-10-07 15:00:21.259466731 +0200
++++ mono-native-3.8.0/libgc/include/gc.h	2014-10-07 15:05:25.560975681 +0200
+@@ -500,7 +500,7 @@ GC_API GC_PTR GC_malloc_atomic_ignore_of
+ #ifdef __linux__
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif

new file mode 100644
index 0000000..6c371d0
@@ -0,0 +1,31 @@
+#############################################################
+#
+# mono-native
+#
+#############################################################
+
+MONO_NATIVE_VERSION = $(MONO_VERSION)
+MONO_NATIVE_SITE = $(MONO_SITE)
+MONO_NATIVE_SOURCE = $(MONO_SOURCE)
+MONO_NATIVE_INSTALL_STAGING = $(MONO_INSTALL_STAGING)
+
+MONO_NATIVE_DEPENDENCIES += host-mono-managed
+
+# Disable managed code (mcs folder) from building
+MONO_NATIVE_CONF_OPTS = $(MONO_CONF_OPT) --disable-mcs-build
+
+define MONO_NATIVE_TWEAK_LIBC_NAME
+	$(SED) 's/libc.so.6/$(MONO_LIBC_NAME)/g' $(TARGET_DIR)/etc/mono/config
+endef
+
+ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
+	MONO_LIBC_NAME = libc.so.0
+else ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
+	MONO_LIBC_NAME = libc.so
+endif
+
+ifneq ($(MONO_LIBC_NAME),)
+	MONO_NATIVE_POST_INSTALL_TARGET_HOOKS += MONO_NATIVE_TWEAK_LIBC_NAME
+endif
+
+$(eval $(autotools-package))

new file mode 100644
index 0000000..541f9ad
@@ -0,0 +1,18 @@
+#############################################################
+#
+# mono
+#
+#############################################################
+
+MONO_VERSION = 3.10.0
+MONO_SITE = http://download.mono-project.com/sources/mono/
+MONO_SOURCE = mono-$(MONO_VERSION).tar.bz2
+MONO_INSTALL_STAGING = YES
+
+MONO_CONF_OPT = --disable-gtk-doc --with-mcs-docs=no \
+	--with-moonlight=no --disable-libraries --with-ikvm-native=no
+
+ifeq ($(BR2_PACKAGE_MONO),y)
+	include package/mono/*/*.mk
+	TARGETS += mono-native mono-managed
+endif

2.1.1

Dear Angelo Compagnucci,

I still don't understand why you think the build takes place in the same folder: the host and target variants of the same package are built in separate directories.

I'm working on the patches that use a single mono package. There are other issues with your patch: host-mono-managed automatically downloads monolite, which is bad, as it circumvents the download infrastructure of Buildroot. I'll show you an approach to fix that.

Best regards,

Thomas

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

Hi Thomas,

2014-10-10 20:48 GMT+02:00 Thomas Petazzoni
<[email protected]>:

Well, this aspect is a little bit obsure for me, I'll rework the documentation to understand better.

Yes, it could be fixed, and if it's mandatory for accepting this patch, I will work on that!

Thank you!

Profile: http://it.linkedin.com/in/compagnucciangelo

Hi Thomas,

Another thing. I'm using this patch as a training to understand better how to write good buildroot packages. I hope to contribute more in the future! I really appreciate any hint and I prefer to write the patch myself!
So I will be really grateful if you can review this patch and point me to the right direction, step by step, if it's not to much a hassle for you!

Again, thank you for your time!

Profile: http://it.linkedin.com/in/compagnucciangelo

Angelo,

For your reference, I've got a start on taking a submission from a few months back and making the build a single package. I'll send out the patch when I'm back in the office Monday. I never had a chance to completely finish and test it.

Thanks,
Matt

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Hi Matthew,

This is really unfortunate! I'm working on this patch for months now, but only received a partial review from Yann some months ago. I really want to became a buildroot contributor with something more substantial than a couple of bugs fixed.
In the weekend I still will complete the patch, I finally understand how to merge both packages in one and I'm making my definitive patch. Probably it will be trashed on monday, but who cares, I learned so much!

Thank you for your time!

Profile: http://it.linkedin.com/in/compagnucciangelo

On 11/10/14 09:25, Angelo Compagnucci wrote:
[snip]

The problem is that mono is really complicated stuff to cross-compile, so
choosing that as your first package is a bit ambitious. Because it is so complicated, people are also afraid to review it. So bear with us please :-)

Regards,
Arnout

[snip]

Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

Hi Arnout,

Of course! And again a big big big thank you for all of your support and time! I really hope that mono finds his way into buildroot, it's a so commonly used piece of software that I think it must be into buildroot.
Probably I'm a bit too ambitious, but my motto is "try harder"! So you will not get rid of me so easily!

There is no other way I can express my gratitude than contributing, so please support me until I became proficient, and you will not regret!

Sincerely, Angelo

Profile: http://it.linkedin.com/in/compagnucciangelo

Dear Angelo Compagnucci,

Here are improved patches:

* One patch adding the host-monolite package, so that Mono doesn't download Monolite on its own.

* One patch adding the mono and host-mono packages.

It's still using the old Mono version, so you'll have to update that and check that it continues to work.

Best regards,

Thomas

Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Hi Thomas!

Wow! Great work! I'll rework the patches with the latest mono version and adding proper licensing information.
I'll resubmit the patch as soon as possible!

Thank you for your time!

Profile: http://it.linkedin.com/in/compagnucciangelo