add ralloc from mesa as a talloc replacement

libs/ralloc/Makefile

@@ -0,0 +1,53 @@
+#
+# Copyright (C) 2011-2012 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ralloc
+PKG_VERSION:=10.3.0
+PKG_RELEASE:=1
+
+PKG_SOURCE:=MesaLib-$(PKG_VERSION).tar.bz2
+PKG_SOURCE_URL:=ftp://ftp.freedesktop.org/pub/mesa/10.3/
+PKG_BUILD_DIR:=$(BUILD_DIR)/Mesa-$(PKG_VERSION)
+PKG_MD5SUM:=bc071575596a074df2b15cac57c01ed8
+
+PKG_LICENSE:=MIT
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libralloc
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=MIT-x licenced talloc replacement
+endef
+
+define Package/libralloc/description
+endef
+
+define Build/Configure
+	/bin/true
+endef
+
+define Build/Compile
+	$(TARGET_CC) $(TARGET_CFLAGS) -Wall -shared \
+		-o $(PKG_BUILD_DIR)/libralloc.so $(PKG_BUILD_DIR)/src/util/ralloc.c
+endef
+
+define Package/libralloc/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/libralloc.so $(1)/usr/lib/
+endef
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_BUILD_DIR)/src/util/ralloc.h $(1)/usr/include
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/libralloc.so $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,libralloc))

libs/ralloc/patches/0001-ralloc-allow-ctx-to-be-NULL-for-reralloc.patch

@@ -0,0 +1,27 @@
+From f6e0deb59a625e8e4ad0cd2c81fa8913fe15e588 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Wed, 24 Sep 2014 16:11:12 +0200
+Subject: [PATCH 1/3] ralloc: allow ctx to be NULL for reralloc
+
+---
+ src/util/ralloc.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/util/ralloc.c b/src/util/ralloc.c
+index 36bc61f..aabe312 100644
+--- a/src/util/ralloc.c
++++ b/src/util/ralloc.c
+@@ -174,7 +174,9 @@ reralloc_size(const void *ctx, void *ptr, size_t size)
+    if (unlikely(ptr == NULL))
+       return ralloc_size(ctx, size);
+
+-   assert(ralloc_parent(ptr) == ctx);
++   if (ctx != NULL)
++      assert(ralloc_parent(ptr) == ctx);
++
+    return resize(ptr, size);
+ }
+
+-- 
+2.0.1
+

libs/ralloc/patches/0002-ralloc-replace-macros.h-include-with-required-macro.patch

@@ -0,0 +1,40 @@
+From 1818c7aefb73bc51e1f2dd7c5c17ce490817ccc1 Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Wed, 24 Sep 2014 16:17:00 +0200
+Subject: [PATCH 2/3] ralloc: replace macros.h include with required macro
+
+Allow it to be exported.
+---
+ src/util/ralloc.h | 16 +++++++++++++++-
+ 1 file changed, 15 insertions(+), 1 deletion(-)
+
+diff --git a/src/util/ralloc.h b/src/util/ralloc.h
+index 4b88f32..279213d 100644
+--- a/src/util/ralloc.h
++++ b/src/util/ralloc.h
+@@ -54,7 +54,21 @@ extern "C" {
+ #include <stdarg.h>
+ #include <stdbool.h>
+
+-#include "macros.h"
++#if (__GNUC__ >= 3)
++#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
++#else
++#define PRINTFLIKE(f, a)
++#endif
++
++#ifndef likely
++#  ifdef __GNUC__
++#    define likely(x)   __builtin_expect(!!(x), 1)
++#    define unlikely(x) __builtin_expect(!!(x), 0)
++#  else
++#    define likely(x)   (x)
++#    define unlikely(x) (x)
++#  endif
++#endif
+
+ /**
+  * \def ralloc(ctx, type)
+-- 
+2.0.1
+

libs/ralloc/patches/0003-ralloc-add-memdup.patch

@@ -0,0 +1,53 @@
+From 786d3b4ac4951516ba10738a1725adb3c840548b Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Wed, 24 Sep 2014 16:21:38 +0200
+Subject: [PATCH 3/3] ralloc: add memdup
+
+---
+ src/util/ralloc.c | 13 +++++++++++++
+ src/util/ralloc.h |  5 +++++
+ 2 files changed, 18 insertions(+)
+
+diff --git a/src/util/ralloc.c b/src/util/ralloc.c
+index aabe312..d7303a8 100644
+--- a/src/util/ralloc.c
++++ b/src/util/ralloc.c
+@@ -310,6 +310,19 @@ ralloc_set_destructor(const void *ptr, void(*destructor)(void *))
+    info->destructor = destructor;
+ }
+
++void *
++ralloc_memdup(const void *ctx, const void *ptr, size_t size)
++{
++   char *mem;
++
++   if (unlikely(ptr == NULL))
++      return NULL;
++
++   mem = ralloc_size(ctx, size);
++   memcpy(mem, ptr, size);
++   return mem;
++}
++
+ char *
+ ralloc_strdup(const void *ctx, const char *str)
+ {
+diff --git a/src/util/ralloc.h b/src/util/ralloc.h
+index 279213d..dea2e2a 100644
+--- a/src/util/ralloc.h
++++ b/src/util/ralloc.h
+@@ -269,6 +269,11 @@ void ralloc_set_destructor(const void *ptr, void(*destructor)(void *));
+
+ /// \defgroup array String Functions @{
+ /**
++ * Duplicate memory, allocating the memory from the given context.
++ */
++void *ralloc_memdup(const void *ctx, const void *ptr, size_t size);
++
++/**
+  * Duplicate a string, allocating the memory from the given context.
+  */
+ char *ralloc_strdup(const void *ctx, const char *str);
+-- 
+2.0.1
+