Building OpenDylan on FreeBSD-amd64

bootstage1-build.jam

#
# Generated config
#
#
# This Jam file is generated by the configure script
#
BUILDDIR = ABSOLUTE_PATH_FOR_BUILD_DIRECTORY ;
CC        ?= clang ;
CCFLAGS   ?= -I$(BUILDDIR)/Bootstrap.1/include -w -g -O0 -fno-inline -pthread ;
GC_CFLAGS ?= -DGC_USE_BOEHM -DGC_THREADS -I/usr/local/include  ;
GC_LFLAGS ?= -L/usr/local/lib -lgc-threaded ;
GC_USE_STATIC_BOEHM ?= false ;


#
# Configuration variables
#

CCFLAGS  += -DOPEN_DYLAN_PLATFORM_UNIX -DOPEN_DYLAN_PLATFORM_FREEBSD ;

#
# Library search path
#
LINKFLAGSEXE ?= -Wl,-z,origin -Wl,-rpath,\\$ORIGIN/../lib/ -pthread ;

#
# Common build script
#
rtlibs = $(BUILDDIR)/Bootstrap.1/lib/runtime/c-amd64-freebsd/libdylan-c-runtime.a ;

include $(SYSTEM_ROOT)/lib/posix-build.jam ;

bootstrap1.sh

#!/bin/sh
DYLANCOMPILER="env LD_LIBRARY_PATH=\$(abs_builddir)/../opendylan-2012.1/lib \$(abs_builddir)/../opendylan-2012.1/bin/dylan-compiler -build -build-script \$(abs_builddir)/bootstage1-build.jam"

gmake bootstrap-stage-1 DYLANCOMPILER="$DYLANCOMPILER"

OpenDylan-FreeBSD-amd64-README.txt

Building OpenDylan on FreeBSD amd64
===================================
Install tools
-------------
devel/autoconf, devel/gmake

Install Boehm-GC
----------------
+ put the patch into ports/devel/boehm-gc-threaded/files/patch-~~~__dyn_load.c
+ install ports

directory layout
----------------
${TOP}/opendylan         -- the git local repository
${TOP}/opendylan-2012.1  -- precompiled opendylan for FreeBSD x86
${TOP}/build             -- work directory

prepare files
-------------
1 get precompiled dylan-compiler for x86-freebsd
  + get http://opendylan.org/downloads/opendylan/2012.1/opendylan-2012.1-x86-freebsd.tar.bz2
  + extract it.
2 Clone the git repository::
  + git clone git://github.com/dylan-lang/opendylan.git --recursive
  + cd opendylan && ./autogen.sh
3 create build directory and put support files
  mkdir ${TOP}/build
  copy bootstrap1.sh into ${TOP}/build/bootstrap1.sh
  copy bootstage1-build.jam into ${TOP}/build/bootstage1-build.jam
  edit bootstage1-build.jam 
       BUILDDIR = ABSOLUTE_PATH_FOR_BUILD_DIRECTORY ;

build bootstrap1 compiler
-------------------------
1 goto ${TOP}/build
2 configure source
  $ DYLANCOMPILER="dylan-compiler -build" CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib ../opendylan/configure --with-gc=/usr/local
3 sh bootstrap1.sh

build everything
----------------
1 goto ${TOP}/build
2 gmake 3-stage-bootstrap

patch-~~~__dyn_load.c

--- dyn_load.c-	2013-01-07 11:47:37.692122307 +0900
+++ dyn_load.c	2013-01-11 17:58:07.623141180 +0900
@@ -88,6 +88,9 @@ static int (*GC_has_static_roots)(const 
 #   include <stddef.h>
 #   include <elf.h>
 #   include <link.h>
+#if defined(FREEBSD)
+#   include <dlfcn.h>
+#endif
 #endif
 
 /* Newer versions of GNU/Linux define this macro.  We
@@ -497,6 +500,7 @@ extern ElfW(Dyn) _DYNAMIC[];
 
 static struct link_map *
 GC_FirstDLOpenedLinkMap()
+#if !defined(FREEBSD)
 {
     ElfW(Dyn) *dp;
     static struct link_map *cachedResult = 0;
@@ -517,7 +521,21 @@ GC_FirstDLOpenedLinkMap()
     }
     return cachedResult;
 }
-
+#else
+{
+    static struct link_map *cachedResult = 0;
+    if (cachedResult == 0) {
+	void *p;
+#undef dlopen
+	if ((p = dlopen(NULL, RTLD_NOW | RTLD_NOLOAD)) != NULL) {
+#define dlopen done!call!me
+	    dlinfo(p, RTLD_DI_LINKMAP, &cachedResult);
+	    dlclose(p);
+	}
+    }
+    return cachedResult;
+}
+#endif
 
 void GC_register_dynamic_libraries()
 {
@@ -541,7 +559,13 @@ void GC_register_dynamic_libraries()
         
 	e = (ElfW(Ehdr) *) lm->l_addr;
         p = ((ElfW(Phdr) *)(((char *)(e)) + e->e_phoff));
+#if defined(FREEBSD)
+	if (lm == GC_FirstDLOpenedLinkMap())
+	  offset = 0;
+	else
+#endif
         offset = ((unsigned long)(lm->l_addr));
+
         for( i = 0; i < (int)(e->e_phnum); ((i++),(p++)) ) {
           switch( p->p_type ) {
             case PT_LOAD: