100-uclibc-conf.patch

用于生成linux操作系统下的交叉编译工具链和嵌入式linux系统的根文件系统,支持x86、arm、powerpc等处理器

--- gcc-3.4.1/gcc/config/t-linux-uclibc
+++ gcc-3.4.1/gcc/config/t-linux-uclibc
@@ -0,0 +1,5 @@
+# Remove glibc specific files added in t-linux
+SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))
+
+# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc
+LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))
--- gcc-3.4.1/gcc/config.gcc
+++ gcc-3.4.1/gcc/config.gcc
@@ -2310,10 +2310,16 @@
 *)
 	echo "*** Configuration ${target} not supported" 1>&2
 	exit 1
 	;;
 esac
+
+# Rather than hook into each target, just do it after all the linux
+# targets have been processed
+case ${target} in
+*-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc"
+esac
 
 # Support for --with-cpu and related options (and a few unrelated options,
 # too).
 case ${with_cpu} in
   yes | no)
--- gcc-3.4.4/gcc/config/alpha/linux-elf.h
+++ gcc-3.4.4/gcc/config/alpha/linux-elf.h
@@ -27,7 +27,11 @@
 #define SUBTARGET_EXTRA_SPECS \
 { "elf_dynamic_linker", ELF_DYNAMIC_LINKER },
 
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER	"/lib/ld-uClibc.so.0"
+#else
 #define ELF_DYNAMIC_LINKER	"/lib/ld-linux.so.2"
+#endif
 
 #define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax}		\
   %{O*:-O3} %{!O*:-O1}						\
--- gcc-3.4.1-dist/gcc/config/arm/linux-elf.h	2004-01-31 00:18:11.000000000 -0600
+++ gcc-3.4.1/gcc/config/arm/linux-elf.h	2004-08-12 15:54:42.000000000 -0500
@@ -80,14 +80,19 @@
 #define ENDFILE_SPEC \
   "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
 
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#else
+#define ELF_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+#endif
 #undef  LINK_SPEC
 #define LINK_SPEC "%{h*} %{version:-v} \
    %{b} %{Wl,*:%*} \
    %{static:-Bstatic} \
    %{shared:-shared} \
    %{symbolic:-Bsymbolic} \
    %{rdynamic:-export-dynamic} \
-   %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
+   %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \
    -X \
    %{mbig-endian:-EB}" \
    SUBTARGET_EXTRA_LINK_SPEC
--- gcc-3.4.1-dist/gcc/config/cris/linux.h	2003-11-28 21:08:09.000000000 -0600
+++ gcc-3.4.1/gcc/config/cris/linux.h	2004-08-12 15:54:43.000000000 -0500
@@ -79,6 +79,25 @@
 #undef CRIS_DEFAULT_CPU_VERSION
 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG
 
+#ifdef USE_UCLIBC
+
+#undef CRIS_SUBTARGET_VERSION
+#define CRIS_SUBTARGET_VERSION " - cris-axis-linux-uclibc"
+
+#undef CRIS_LINK_SUBTARGET_SPEC
+#define CRIS_LINK_SUBTARGET_SPEC \
+ "-mcrislinux\
+  -rpath-link include/asm/../..%s\
+  %{shared} %{static}\
+  %{symbolic:-Bdynamic} %{shlib:-Bdynamic} %{static:-Bstatic}\
+  %{!shared: \
+    %{!static: \
+      %{rdynamic:-export-dynamic} \
+      %{!dynamic-linker:-dynamic-linker /lib/ld-uClibc.so.0}}} \
+  %{!r:%{O2|O3: --gc-sections}}"
+
+#else  /* USE_UCLIBC */
+
 #undef CRIS_SUBTARGET_VERSION
 #define CRIS_SUBTARGET_VERSION " - cris-axis-linux-gnu"
 
@@ -93,6 +112,8 @@
   %{!shared:%{!static:%{rdynamic:-export-dynamic}}}\
   %{!r:%{O2|O3: --gc-sections}}"
 
+#endif  /* USE_UCLIBC */
+
 
 /* Node: Run-time Target */
 
--- gcc-3.4.1-dist/gcc/config/i386/linux.h	2003-11-28 21:08:10.000000000 -0600
+++ gcc-3.4.1/gcc/config/i386/linux.h	2004-08-12 15:54:43.000000000 -0500
@@ -110,22 +110,21 @@
 
 #undef	LINK_SPEC
 #ifdef USE_GNULIBC_1
-#define LINK_SPEC "-m elf_i386 %{shared:-shared} \
-  %{!shared: \
-    %{!ibcs: \
-      %{!static: \
-	%{rdynamic:-export-dynamic} \
-	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.1}} \
-	%{static:-static}}}"
+#define ELF_DYNAMIC_LINKER "/lib/ld-linux.so.1"
+#else
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
 #else
+#define ELF_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+#endif
+#endif
 #define LINK_SPEC "-m elf_i386 %{shared:-shared} \
   %{!shared: \
     %{!ibcs: \
       %{!static: \
 	%{rdynamic:-export-dynamic} \
-	%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
+	%{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "}} \
 	%{static:-static}}}"
-#endif
 
 /* A C statement (sans semicolon) to output to the stdio stream
    FILE the assembler definition of uninitialized global DECL named
--- gcc-3.4.4/gcc/config/i386/linux64.h
+++ gcc-3.4.4/gcc/config/i386/linux64.h
@@ -54,14 +54,21 @@
    When the -shared link option is used a final link is not being
    done.  */
 
+#ifdef USE_UCLIBC
+#define ELF32_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#define ELF64_DYNAMIC_LINKER "/lib/ld64-uClibc.so.0"
+#else
+#define ELF32_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+#define ELF64_DYNAMIC_LINKER "/lib64/ld-linux-x86-64.so.2"
+#endif
 #undef	LINK_SPEC
 #define LINK_SPEC "%{!m32:-m elf_x86_64} %{m32:-m elf_i386} \
   %{shared:-shared} \
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      %{m32:%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
-      %{!m32:%{!dynamic-linker:-dynamic-linker /lib64/ld-linux-x86-64.so.2}}} \
+      %{m32:%{!dynamic-linker:-dynamic-linker " ELF32_DYNAMIC_LINKER "}} \
+      %{!m32:%{!dynamic-linker:-dynamic-linker " ELF64_DYNAMIC_LINKER "}}} \
     %{static:-static}}"
 
 #define MULTILIB_DEFAULTS { "m64" }
--- gcc-3.4.4/gcc/config/ia64/linux.h
+++ gcc-3.4.4/gcc/config/ia64/linux.h
@@ -37,13 +37,18 @@
 /* Define this for shared library support because it isn't in the main
    linux.h file.  */
 
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER	"/lib/ld-uClibc.so.0"
+#else
+#define ELF_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
+#endif
 #undef LINK_SPEC
 #define LINK_SPEC "\
   %{shared:-shared} \
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      %{!dynamic-linker:-dynamic-linker /lib/ld-linux-ia64.so.2}} \
+      %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "}} \
       %{static:-static}}"
 
 
--- gcc-3.4.4/gcc/config/m68k/linux.h
+++ gcc-3.4.4/gcc/config/m68k/linux.h
@@ -131,12 +131,17 @@
 
 /* If ELF is the default format, we should not use /lib/elf.  */
 
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#else
+#define ELF_DYNAMIC_LINKER "/lib/ld.so.1"
+#endif
 #undef	LINK_SPEC
 #define LINK_SPEC "-m m68kelf %{shared} \
   %{!shared: \
     %{!static: \
       %{rdynamic:-export-dynamic} \
-      %{!dynamic-linker*:-dynamic-linker /lib/ld.so.1}} \
+      %{!dynamic-linker*:-dynamic-linker " ELF_DYNAMIC_LINKER "}} \
     %{static}}"
 
 /* For compatibility with linux/a.out */
--- gcc-3.4.1-dist/gcc/config/mips/linux.h	2004-06-15 20:42:24.000000000 -0500
+++ gcc-3.4.1/gcc/config/mips/linux.h	2004-08-12 15:54:43.000000000 -0500
@@ -109,14 +109,19 @@
 
 /* Borrowed from sparc/linux.h */
 #undef LINK_SPEC
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#else
+#define ELF_DYNAMIC_LINKER "/lib/ld.so.1"
+#endif
 #define LINK_SPEC \
  "%(endian_spec) \
   %{shared:-shared} \
   %{!shared: \
     %{!ibcs: \
       %{!static: \
         %{rdynamic:-export-dynamic} \
-        %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
+        %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "}} \
         %{static:-static}}}"
 
 #undef SUBTARGET_ASM_SPEC
--- gcc-3.4.4/gcc/config/pa/pa-linux.h
+++ gcc-3.4.4/gcc/config/pa/pa-linux.h
@@ -77,13 +77,18 @@
 /* Define this for shared library support because it isn't in the main
    linux.h file.  */
 
+#ifdef USE_UCLIBC
+#define ELF_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#else
+#define ELF_DYNAMIC_LINKER "/lib/ld.so.1"