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mklibs: fix some long standing libpthread symbol link issues, mostly related to weak function overrides between libgcc, libc and libpthread

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25795 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-02-28 18:17:02 +00:00
parent 14e8d0ae0f
commit 9c26cd0e62
2 changed files with 65 additions and 3 deletions
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5
tools/mklibs/patches/009-uclibc_libgcc_link.patch
View File

@ -22,16 +22,15 @@
symbols.update(library_symbols_used[library])
@@ -590,9 +588,11 @@ while 1:
@@ -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" and soname != "libc.so.0":
+ 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)

63
tools/mklibs/patches/010-uclibc_libpthread_symbols.patch Normal file
View File

@ -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: