Revert "[tools] mklibs: update to 0.1.34"
authorFelix Fietkau <nbd@openwrt.org>
Sun, 10 Jun 2012 15:09:09 +0000 (15:09 +0000)
committerFelix Fietkau <nbd@openwrt.org>
Sun, 10 Jun 2012 15:09:09 +0000 (15:09 +0000)
Too much broken, needs to be reworked

SVN-Revision: 32163

17 files changed:
tools/mklibs/Makefile
tools/mklibs/patches/001-missing_includes.patch [new file with mode: 0644]
tools/mklibs/patches/002-disable_symbol_checks.patch
tools/mklibs/patches/003-no_copy.patch
tools/mklibs/patches/004-libpthread_link.patch
tools/mklibs/patches/005-duplicate_syms.patch [deleted file]
tools/mklibs/patches/005-readelf_fixes.patch [new file with mode: 0644]
tools/mklibs/patches/006-duplicate_syms.patch [new file with mode: 0644]
tools/mklibs/patches/006-uclibc_init.patch [deleted file]
tools/mklibs/patches/007-gc_sections.patch [deleted file]
tools/mklibs/patches/007-uclibc_init.patch [new file with mode: 0644]
tools/mklibs/patches/008-gc_sections.patch [new file with mode: 0644]
tools/mklibs/patches/008-uclibc_libgcc_link.patch [deleted file]
tools/mklibs/patches/009-uclibc_libgcc_link.patch [new file with mode: 0644]
tools/mklibs/patches/009-uclibc_libpthread_symbols.patch [deleted file]
tools/mklibs/patches/010-remove_STT_GNU_IFUNC.patch [deleted file]
tools/mklibs/patches/010-uclibc_libpthread_symbols.patch [new file with mode: 0644]

index 7a82848..bd96721 100644 (file)
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2009-2012 OpenWrt.org
+# Copyright (C) 2009 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -7,11 +7,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mklibs
-PKG_VERSION:=0.1.34
+PKG_VERSION:=0.1.29
 
 PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://ftp.de.debian.org/debian/pool/main/m/mklibs/
-PKG_MD5SUM:=afe0ed527ba96b8a882b5de350603007
+PKG_MD5SUM:=7f35dfdbde249a090199829c1a1222d8
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/mklibs
 
 include $(INCLUDE_DIR)/host-build.mk
 
@@ -19,8 +21,8 @@ HOST_CFLAGS += -I$(CURDIR)/include
 
 define Host/Install
        $(INSTALL_BIN) \
-               $(HOST_BUILD_DIR)/src/mklibs \
-               $(HOST_BUILD_DIR)/src/mklibs-copy \
+               $(HOST_BUILD_DIR)/src/mklibs.py \
+               $(HOST_BUILD_DIR)/src/mklibs-copy.py \
                $(HOST_BUILD_DIR)/src/mklibs-readelf/mklibs-readelf \
                $(STAGING_DIR_HOST)/bin/
 endef
diff --git a/tools/mklibs/patches/001-missing_includes.patch b/tools/mklibs/patches/001-missing_includes.patch
new file mode 100644 (file)
index 0000000..9f3485c
--- /dev/null
@@ -0,0 +1,20 @@
+--- a/src/mklibs-readelf/elf.cpp
++++ b/src/mklibs-readelf/elf.cpp
+@@ -25,6 +25,7 @@
+ #include <fcntl.h>
+ #include <sys/mman.h>
+ #include <sys/stat.h>
++#include <unistd.h>
+ using namespace Elf;
+--- a/src/mklibs-readelf/main.cpp
++++ b/src/mklibs-readelf/main.cpp
+@@ -7,6 +7,7 @@
+ #include <elf.h>
+ #include <getopt.h>
++#include <stdio.h>
+ #include "elf.hpp"
index 44be637..7ec6393 100644 (file)
@@ -1,20 +1,23 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -524,7 +524,7 @@ while 1:
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -500,7 +500,7 @@ while 1:
          # No progress in last pass. Verify all remaining symbols are weak.
          for name in unresolved:
              if not needed_symbols[name].weak:
--                raise Exception("Unresolvable symbol %s" % name)
+-                raise "Unresolvable symbol %s" % name
 +                print "WARNING: Unresolvable symbol %s" % name
          break
  
      previous_pass_unresolved = unresolved
-@@ -559,7 +559,7 @@ while 1:
+@@ -533,10 +533,7 @@ while 1:
+     # which symbols are actually used from each lib
      for name in needed_symbols:
-         if not name in symbol_provider:
-             if not needed_symbols[name].weak:
--                raise Exception("No library provides non-weak %s" % name)
-+                print "WARNING: Unresolvable symbol %s" % name
-         else:
+-        if not name in symbol_provider:
+-            if not needed_symbols[name].weak:
+-                raise "No library provides non-weak %s" % name
+-        else:
++        if name in symbol_provider:
              lib = symbol_provider[name]
              library_symbols_used[lib].add(library_symbols[lib][name])
index e0ab2ac..bd6505a 100644 (file)
@@ -1,6 +1,6 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -463,7 +463,7 @@ while 1:
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -440,7 +440,7 @@ while 1:
      passnr = passnr + 1
      # Gather all already reduced libraries and treat them as objects as well
      small_libs = []
@@ -9,7 +9,7 @@
          obj = dest_path + "/" + lib
          small_libs.append(obj)
          inode = os.stat(obj)[ST_INO]
-@@ -579,12 +579,7 @@ while 1:
+@@ -552,12 +552,7 @@ while 1:
          if not so_file:
              sys.exit("File not found:" + library)
          pic_file = find_pic(library)
@@ -23,7 +23,7 @@
              # we have a pic file, recompile
              debug(DEBUG_SPAM, "extracting from:", pic_file, "so_file:", so_file)
              soname = extract_soname(so_file)
-@@ -627,22 +622,14 @@ while 1:
+@@ -600,22 +595,14 @@ while 1:
              cmd.append(library_depends_gcc_libnames(so_file))
              command(target + "gcc", *cmd)
  
index 657e232..b4a6e4f 100644 (file)
@@ -1,13 +1,13 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -106,14 +106,14 @@ def library_depends(obj):
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -105,14 +105,14 @@ def library_depends(obj):
  
  # Return a list of libraries the passed objects depend on. The
  # libraries are in "-lfoo" format suitable for passing to gcc.
 -def library_depends_gcc_libnames(obj):
 +def library_depends_gcc_libnames(obj, soname):
      if not os.access(obj, os.F_OK):
-         raise Exception("Cannot find lib: " + obj)
+         raise "Cannot find lib: " + obj
      libs = library_depends(obj)
      ret = []
      for i in libs:
@@ -17,7 +17,7 @@
              if match.group('ld'):
                  ret.append(find_lib(match.group(0)))
              elif match.group('lib'):
-@@ -619,7 +619,7 @@ while 1:
+@@ -592,7 +592,7 @@ while 1:
              cmd.extend(extra_flags)
              cmd.append("-lgcc")
              cmd.extend(["-L%s" % a for a in [dest_path] + [sysroot + b for b in lib_path if sysroot == "" or b not in ("/" + libdir + "/", "/usr/" + libdir + "/")]])
diff --git a/tools/mklibs/patches/005-duplicate_syms.patch b/tools/mklibs/patches/005-duplicate_syms.patch
deleted file mode 100644 (file)
index b899330..0000000
+++ /dev/null
@@ -1,39 +0,0 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -509,10 +509,7 @@ while 1:
-     num_unresolved = 0
-     unresolved = set()
-     for name in needed_symbols:
--        if not name in present_symbols:
--            debug(DEBUG_SPAM, "Still need: %s" % name)
--            unresolved.add(name)
--            num_unresolved = num_unresolved + 1
-+        library_symbols[library][name] = symbol
-     debug (DEBUG_NORMAL, `len(needed_symbols)`, "symbols,",
-            `num_unresolved`, "unresolved")
-@@ -531,7 +528,6 @@ while 1:
-     library_symbols = {}
-     library_symbols_used = {}
--    symbol_provider = {}
-     # WORKAROUND: Always add libgcc on old-abi arm
-     header = elf_header(find_lib(libraries.copy().pop()))
-@@ -557,12 +553,10 @@ while 1:
-     # which symbols are actually used from each lib
-     for name in needed_symbols:
--        if not name in symbol_provider:
--            if not needed_symbols[name].weak:
--                print "WARNING: Unresolvable symbol %s" % name
--        else:
--            lib = symbol_provider[name]
--            library_symbols_used[lib].add(library_symbols[lib][name])
-+        for lib in libraries:
-+            if name in library_symbols[lib]:
-+                library_symbols_used[lib].add(library_symbols[lib][name])
-+
-     # reduce libraries
-     for library in libraries:
diff --git a/tools/mklibs/patches/005-readelf_fixes.patch b/tools/mklibs/patches/005-readelf_fixes.patch
new file mode 100644 (file)
index 0000000..8ae0954
--- /dev/null
@@ -0,0 +1,33 @@
+--- a/src/mklibs-readelf/main.cpp
++++ b/src/mklibs-readelf/main.cpp
+@@ -57,6 +57,10 @@ static void process_elf_header (Elf::fil
+ static void process_dynamics (Elf::file *file, int64_t tag)
+ {
+   const Elf::section_type<Elf::section_type_DYNAMIC> *section = file->get_section_DYNAMIC ();
++
++  if (!section)
++    return;
++
+   for (std::vector<Elf::dynamic *>::const_iterator it = section->get_dynamics ().begin (); it != section->get_dynamics ().end (); ++it)
+   {
+     Elf::dynamic *dynamic = *it;
+@@ -67,6 +71,9 @@ static void process_dynamics (Elf::file
+ static void process_symbols_provided (const Elf::section_type<Elf::section_type_DYNSYM> *section)
+ {
++  if (!section)
++    return;
++
+   for (std::vector<Elf::symbol *>::const_iterator it = section->get_symbols ().begin (); it != section->get_symbols ().end (); ++it)
+   {
+     const Elf::symbol *symbol = *it;
+@@ -95,6 +102,9 @@ static void process_symbols_provided (co
+ static void process_symbols_undefined (const Elf::section_type<Elf::section_type_DYNSYM> *section)
+ {
++  if (!section)
++    return;
++
+   for (std::vector<Elf::symbol *>::const_iterator it = section->get_symbols ().begin (); it != section->get_symbols ().end (); ++it)
+   {
+     const Elf::symbol *symbol = *it;
diff --git a/tools/mklibs/patches/006-duplicate_syms.patch b/tools/mklibs/patches/006-duplicate_syms.patch
new file mode 100644 (file)
index 0000000..3f39ee5
--- /dev/null
@@ -0,0 +1,32 @@
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -507,7 +507,6 @@ while 1:
+     library_symbols = {}
+     library_symbols_used = {}
+-    symbol_provider = {}
+     # WORKAROUND: Always add libgcc on old-abi arm
+     header = elf_header(find_lib(libraries.copy().pop()))
+@@ -525,17 +524,13 @@ while 1:
+         library_symbols_used[library] = set()
+         for symbol in symbols:
+             for name in symbol.base_names():
+-                if name in symbol_provider:
+-                    debug(DEBUG_SPAM, "duplicate symbol %s in %s and %s" % (symbol, symbol_provider[name], library))
+-                else:
+-                    library_symbols[library][name] = symbol
+-                    symbol_provider[name] = library
++                library_symbols[library][name] = symbol
+     # which symbols are actually used from each lib
+     for name in needed_symbols:
+-        if name in symbol_provider:
+-            lib = symbol_provider[name]
+-            library_symbols_used[lib].add(library_symbols[lib][name])
++        for lib in libraries:
++            if name in library_symbols[lib]:
++                library_symbols_used[lib].add(library_symbols[lib][name])
+     # reduce libraries
+     for library in libraries:
diff --git a/tools/mklibs/patches/006-uclibc_init.patch b/tools/mklibs/patches/006-uclibc_init.patch
deleted file mode 100644 (file)
index 63b5956..0000000
+++ /dev/null
@@ -1,14 +0,0 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -597,6 +597,11 @@ while 1:
-                 extra_post_obj.append(sysroot + libc_extras_dir + "/sofini.o")
-                 symbols.add(ProvidedSymbol('__dso_handle', None, None, True))
-+            if soname in ("libc.so.0"):
-+                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True))
-+                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True))
-+                extra_flags.append("-Wl,-init,__uClibc_init")
-+
-             map_file = find_pic_map(library)
-             if map_file:
-                 extra_flags.append("-Wl,--version-script=" + map_file)
diff --git a/tools/mklibs/patches/007-gc_sections.patch b/tools/mklibs/patches/007-gc_sections.patch
deleted file mode 100644 (file)
index 2a75b67..0000000
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -609,7 +609,7 @@ while 1:
-             # compile in only used symbols
-             cmd = []
-             cmd.extend(gcc_options)
--            cmd.append("-nostdlib -nostartfiles -shared -Wl,-soname=" + soname)
-+            cmd.append("-nostdlib -nostartfiles -shared -Wl,--gc-sections -Wl,-soname=" + soname)
-             cmd.extend(["-u%s" % a.linker_name() for a in symbols])
-             cmd.extend(["-o", dest_path + "/" + so_file_name + "-so"])
-             cmd.extend(extra_pre_obj)
diff --git a/tools/mklibs/patches/007-uclibc_init.patch b/tools/mklibs/patches/007-uclibc_init.patch
new file mode 100644 (file)
index 0000000..e765150
--- /dev/null
@@ -0,0 +1,14 @@
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -571,6 +571,11 @@ while 1:
+                 extra_post_obj.append(sysroot + libc_extras_dir + "/sofini.o")
+                 symbols.add(ProvidedSymbol('__dso_handle', None, None, True))
++            if soname in ("libc.so.0"):
++                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True))
++                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True))
++                extra_flags.append("-Wl,-init,__uClibc_init")
++
+             map_file = find_pic_map(library)
+             if map_file:
+                 extra_flags.append("-Wl,--version-script=" + map_file)
diff --git a/tools/mklibs/patches/008-gc_sections.patch b/tools/mklibs/patches/008-gc_sections.patch
new file mode 100644 (file)
index 0000000..2775493
--- /dev/null
@@ -0,0 +1,11 @@
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -583,7 +583,7 @@ while 1:
+             # compile in only used symbols
+             cmd = []
+             cmd.extend(gcc_options)
+-            cmd.append("-nostdlib -nostartfiles -shared -Wl,-soname=" + soname)
++            cmd.append("-nostdlib -nostartfiles -shared -Wl,--gc-sections -Wl,-soname=" + soname)
+             cmd.extend(["-u%s" % a.linker_name() for a in symbols])
+             cmd.extend(["-o", dest_path + "/" + so_file_name + "-so"])
+             cmd.extend(extra_pre_obj)
diff --git a/tools/mklibs/patches/008-uclibc_libgcc_link.patch b/tools/mklibs/patches/008-uclibc_libgcc_link.patch
deleted file mode 100644 (file)
index 648b8ef..0000000
+++ /dev/null
@@ -1,37 +0,0 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -113,11 +113,8 @@ def library_depends_gcc_libnames(obj, so
-     ret = []
-     for i in libs:
-         match = re.match("^(((?P<ld>ld\S*)|(lib(?P<lib>\S+))))\.so.*$", i)
--        if match and not soname in ("libpthread.so.0"):
--            if match.group('ld'):
--                ret.append(find_lib(match.group(0)))
--            elif match.group('lib'):
--                ret.append('-l%s' % match.group('lib'))
-+        if match:
-+            ret.append(find_lib(match.group(0)))
-     return ' '.join(ret)
- class Symbol(object):
-@@ -586,6 +583,7 @@ while 1:
-             extra_flags = []
-             extra_pre_obj = []
-             extra_post_obj = []
-+            libgcc_link = find_lib("libgcc_s.so.1")
-             symbols.update(library_symbols_used[library])
-@@ -616,9 +614,10 @@ while 1:
-             cmd.append(pic_file)
-             cmd.extend(extra_post_obj)
-             cmd.extend(extra_flags)
--            cmd.append("-lgcc")
-             cmd.extend(["-L%s" % a for a in [dest_path] + [sysroot + b for b in lib_path if sysroot == "" or b not in ("/" + libdir + "/", "/usr/" + libdir + "/")]])
--            cmd.append(library_depends_gcc_libnames(so_file, soname))
-+            if soname != "libgcc_s.so.1":
-+                cmd.append(library_depends_gcc_libnames(so_file, soname))
-+                cmd.append(libgcc_link)
-             command(target + "gcc", *cmd)
-             ## DEBUG
diff --git a/tools/mklibs/patches/009-uclibc_libgcc_link.patch b/tools/mklibs/patches/009-uclibc_libgcc_link.patch
new file mode 100644 (file)
index 0000000..36f2067
--- /dev/null
@@ -0,0 +1,37 @@
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -112,11 +112,8 @@ def library_depends_gcc_libnames(obj, so
+     ret = []
+     for i in libs:
+         match = re.match("^(((?P<ld>ld\S*)|(lib(?P<lib>\S+))))\.so.*$", i)
+-        if match and not soname in ("libpthread.so.0"):
+-            if match.group('ld'):
+-                ret.append(find_lib(match.group(0)))
+-            elif match.group('lib'):
+-                ret.append('-l%s' % match.group('lib'))
++        if match:
++            ret.append(find_lib(match.group(0)))
+     return ' '.join(ret)
+ class Symbol(object):
+@@ -560,6 +557,7 @@ while 1:
+             extra_flags = []
+             extra_pre_obj = []
+             extra_post_obj = []
++            libgcc_link = find_lib("libgcc_s.so.1")
+             symbols.update(library_symbols_used[library])
+@@ -590,9 +588,10 @@ while 1:
+             cmd.append(pic_file)
+             cmd.extend(extra_post_obj)
+             cmd.extend(extra_flags)
+-            cmd.append("-lgcc")
+             cmd.extend(["-L%s" % a for a in [dest_path] + [sysroot + b for b in lib_path if sysroot == "" or b not in ("/" + libdir + "/", "/usr/" + libdir + "/")]])
+-            cmd.append(library_depends_gcc_libnames(so_file, soname))
++            if soname != "libgcc_s.so.1":
++                cmd.append(library_depends_gcc_libnames(so_file, soname))
++                cmd.append(libgcc_link)
+             command(target + "gcc", *cmd)
+             ## DEBUG
diff --git a/tools/mklibs/patches/009-uclibc_libpthread_symbols.patch b/tools/mklibs/patches/009-uclibc_libpthread_symbols.patch
deleted file mode 100644 (file)
index 50eb31a..0000000
+++ /dev/null
@@ -1,63 +0,0 @@
---- a/src/mklibs
-+++ b/src/mklibs
-@@ -162,9 +162,10 @@ def undefined_symbols(obj):
-     return result
- class ProvidedSymbol(Symbol):
--    def __init__(self, name, version, library, default_version):
-+    def __init__(self, name, version, library, default_version, weak):
-         super(ProvidedSymbol, self).__init__(name, version, library)
-         self.default_version = default_version
-+        self.weak = weak
-     def base_names(self):
-         ret = []
-@@ -205,11 +206,15 @@ def provided_symbols(obj):
-         if version_string.lower() not in ('base', 'none'):
-             version = version_string
-+        weak = False
-+        if weak_string.lower() == 'true':
-+            weak = True
-+
-         default_version = False
-         if default_version_string.lower() == 'true':
-             default_version = True
--        result.append(ProvidedSymbol(name, version, library, default_version))
-+        result.append(ProvidedSymbol(name, version, library, default_version, weak))
-     return result
-     
-@@ -500,6 +505,9 @@ while 1:
-             debug(DEBUG_SPAM, "present_symbols adding %s" % symbol)
-             names = symbol.base_names()
-             for name in names:
-+                if name in present_symbols:
-+                    if symbol.library != present_symbols[name].library:
-+                        needed_symbols[name] = UndefinedSymbol(name, True, symbol.version, symbol.library)
-                 present_symbols[name] = symbol
-     # are we finished?
-@@ -593,12 +601,16 @@ while 1:
-                 # may segfault in ptmalloc_init due to undefined weak reference
-                 extra_pre_obj.append(sysroot + libc_extras_dir + "/soinit.o")
-                 extra_post_obj.append(sysroot + libc_extras_dir + "/sofini.o")
--                symbols.add(ProvidedSymbol('__dso_handle', None, None, True))
-+                symbols.add(ProvidedSymbol('__dso_handle', None, None, True, True))
--            if soname in ("libc.so.0"):
--                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True))
--                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True))
--                extra_flags.append("-Wl,-init,__uClibc_init")
-+            if soname == "libc.so.0":
-+                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True, True))
-+                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True, True))
-+                extra_pre_obj.append("-Wl,-init,__uClibc_init")
-+
-+            if soname == "libpthread.so.0":
-+                symbols.add(ProvidedSymbol('__pthread_initialize_minimal_internal', None, None, True, True))
-+                extra_flags.append("-Wl,-z,nodelete,-z,initfirst,-init=__pthread_initialize_minimal_internal")
-             map_file = find_pic_map(library)
-             if map_file:
diff --git a/tools/mklibs/patches/010-remove_STT_GNU_IFUNC.patch b/tools/mklibs/patches/010-remove_STT_GNU_IFUNC.patch
deleted file mode 100644 (file)
index 6bae8c7..0000000
+++ /dev/null
@@ -1,20 +0,0 @@
---- a/src/mklibs-readelf/main.cpp
-+++ b/src/mklibs-readelf/main.cpp
-@@ -84,7 +84,7 @@ static void process_symbols_provided (co
-       continue;
-     if (shndx == SHN_UNDEF || shndx == SHN_ABS)
-       continue;
--    if (type != STT_NOTYPE && type != STT_OBJECT && type != STT_FUNC && type != STT_GNU_IFUNC && type != STT_COMMON && type != STT_TLS)
-+    if (type != STT_NOTYPE && type != STT_OBJECT && type != STT_FUNC && type != STT_COMMON && type != STT_TLS)
-       continue;
-     if (!name.size())
-       continue;
-@@ -115,7 +115,7 @@ static void process_symbols_undefined (c
-       continue;
-     if (shndx != SHN_UNDEF)
-       continue;
--    if (type != STT_NOTYPE && type != STT_OBJECT && type != STT_FUNC && type != STT_GNU_IFUNC && type != STT_COMMON && type != STT_TLS)
-+    if (type != STT_NOTYPE && type != STT_OBJECT && type != STT_FUNC && type != STT_COMMON && type != STT_TLS)
-       continue;
-     if (!name.size())
-       continue;
diff --git a/tools/mklibs/patches/010-uclibc_libpthread_symbols.patch b/tools/mklibs/patches/010-uclibc_libpthread_symbols.patch
new file mode 100644 (file)
index 0000000..0c97216
--- /dev/null
@@ -0,0 +1,63 @@
+--- a/src/mklibs.py
++++ b/src/mklibs.py
+@@ -161,9 +161,10 @@ def undefined_symbols(obj):
+     return result
+ class ProvidedSymbol(Symbol):
+-    def __init__(self, name, version, library, default_version):
++    def __init__(self, name, version, library, default_version, weak):
+         super(ProvidedSymbol, self).__init__(name, version, library)
+         self.default_version = default_version
++        self.weak = weak
+     def base_names(self):
+         ret = []
+@@ -204,11 +205,15 @@ def provided_symbols(obj):
+         if version_string.lower() not in ('base', 'none'):
+             version = version_string
++        weak = False
++        if weak_string.lower() == 'true':
++            weak = True
++
+         default_version = False
+         if default_version_string.lower() == 'true':
+             default_version = True
+-        result.append(ProvidedSymbol(name, version, library, default_version))
++        result.append(ProvidedSymbol(name, version, library, default_version, weak))
+     return result
+     
+@@ -476,6 +481,9 @@ while 1:
+             debug(DEBUG_SPAM, "present_symbols adding %s" % symbol)
+             names = symbol.base_names()
+             for name in names:
++                if name in present_symbols:
++                    if symbol.library != present_symbols[name].library:
++                        needed_symbols[name] = UndefinedSymbol(name, True, symbol.version, symbol.library)
+                 present_symbols[name] = symbol
+     # are we finished?
+@@ -567,12 +575,16 @@ while 1:
+                 # may segfault in ptmalloc_init due to undefined weak reference
+                 extra_pre_obj.append(sysroot + libc_extras_dir + "/soinit.o")
+                 extra_post_obj.append(sysroot + libc_extras_dir + "/sofini.o")
+-                symbols.add(ProvidedSymbol('__dso_handle', None, None, True))
++                symbols.add(ProvidedSymbol('__dso_handle', None, None, True, True))
+-            if soname in ("libc.so.0"):
+-                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True))
+-                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True))
+-                extra_flags.append("-Wl,-init,__uClibc_init")
++            if soname == "libc.so.0":
++                symbols.add(ProvidedSymbol('__uClibc_init', None, None, True, True))
++                symbols.add(ProvidedSymbol('__uClibc_fini', None, None, True, True))
++                extra_pre_obj.append("-Wl,-init,__uClibc_init")
++
++            if soname == "libpthread.so.0":
++                symbols.add(ProvidedSymbol('__pthread_initialize_minimal_internal', None, None, True, True))
++                extra_flags.append("-Wl,-z,nodelete,-z,initfirst,-init=__pthread_initialize_minimal_internal")
+             map_file = find_pic_map(library)
+             if map_file: