LFS6.1编译glibc-2.3.4第一遍出错，提示符号重定义。

cnchyan

提示如下：
/lfs/sources/glibc-build/csu/divdi3.os.dt -MT /lfs/sources/glibc-build/csu/divdi3.os
/tmp/ccpFwel2.s: Assembler messages:
/tmp/ccpFwel2.s:348: Error: symbol `__divdi3' is already defined
/tmp/ccpFwel2.s:425: Error: symbol `__moddi3' is already defined
/tmp/ccpFwel2.s:516: Error: symbol `__udivdi3' is already defined
/tmp/ccpFwel2.s:554: Error: symbol `__umoddi3' is already defined
make[2]: *** [/lfs/sources/glibc-build/csu/divdi3.os] Error 1
make[2]: Leaving directory `/lfs/sources/glibc-2.3.4/csu'
make[1]: *** [csu/subdir_lib] Error 2
make[1]: Leaving directory `/lfs/sources/glibc-2.3.4'
make: *** [all] Error 2

全部按照book操作，binutils没有使用livecd的，下载了2.16.91.0.4，不知有没有关系。

cnchyan

换了livcd里的binutils，打上gcc4补丁，重新复制了linux-libc-headers，glibc编译通过，不知是因为binutils，还是headers。

ferrry

原帖在 http://sources.redhat.com/ml/libc-alpha/2005-11/msg00033.html：

I think it is a glibc bug. It has

        __divdi3 = __divdi3_internal
        ...
__divdi3:

The new assembler rejects it.


H.J.
----
2005-11-08  H.J. Lu  <hongjiu.lu@intel.com>

        * sysdeps/wordsize-32/Makefile (CPPFLAGS-divdi3.c): Set to
        -Din_divdi3_c

        * sysdeps/wordsize-32/symbol-hacks.h: Skip if in_divdi3_c is
        defined.

--- sysdeps/wordsize-32/Makefile.as        2002-09-18 23:47:56.000000000 -0700
+++ sysdeps/wordsize-32/Makefile        2005-11-07 15:13:38.000000000 -0800
@@ -2,5 +2,6 @@ ifeq ($(subdir),csu)
ifeq (yes,$(build-shared))
sysdep_routines += divdi3
shared-only-routines += divdi3
+CPPFLAGS-divdi3.c = -Din_divdi3_c
endif
endif
--- sysdeps/wordsize-32/symbol-hacks.h.as        2004-03-08 12:59:34.000000000 -0800
+++ sysdeps/wordsize-32/symbol-hacks.h        2005-11-07 14:57:49.000000000 -0800
@@ -22,7 +22,7 @@
    therefore we get PLTs.  Unnecessarily so.  Changing gcc is a big
    task which might not be worth it so we play tricks with the
    assembler.  */
-#if !defined __ASSEMBLER__ && !defined NOT_IN_libc && defined SHARED
+#if !defined __ASSEMBLER__ && !defined in_divdi3_c && !defined NOT_IN_libc && defined SHARED
asm ("__divdi3 = __divdi3_internal");
asm ("__udivdi3 = __udivdi3_internal");
asm ("__moddi3 = __moddi3_internal");

打了以上补丁后，使用 binutils-2.16.91.0.6(用了新的gas汇编器）编译glibc-2.3.4不在出所述错误。