pr12009.patch

linux下编译交叉工具链的工具源码

See http://gcc.gnu.org/PR12009

Fixes the following problems when testing a cross-compiler:

============================================
Testing g++.dg/compat/abi/bitfield1,
...
Invoking the compiler as /crosstool-0.12/build/powerpc-750-linux-gnu/gcc-3.3-gli
bc-2.2.5/build-gcc/gcc/testsuite/../g++  ...
/crosstool-0.12/build/powerpc-750-linux-gnu/gcc-3.3-glibc-2.2.5/gcc-3.3/gcc/test
suite/g++.dg/compat/abi/bitfield1_main.C
pid is 16028 -16028
compiler exited with status 1
output is:
sh: error while loading shared libraries: /opt/cegl-2.0/powerpc-750-linux-gnu/gc
c-3.3-glibc-2.2.5/powerpc-750-linux-gnu/./lib/libdl.so.2: ELF file data encoding
 not little-endian
/crosstool-0.12/build/powerpc-750-linux-gnu/gcc-3.3-glibc-2.2.5/build-gcc/gcc/te
stsuite/../g++: error while loading shared libraries: /opt/cegl-2.0/powerpc-750-
linux-gnu/gcc-3.3-glibc-2.2.5/powerpc-750-linux-gnu/./lib/libc.so.6: ELF file da
ta encoding not little-endian

FAIL: g++.dg/compat/abi/bitfield1 main_tst.o compile
============================================

and

sh: error while loading shared libraries: /opt/cegl-2.0/powerpc-405-linux-gnu/gcc-3.2.3-glibc-2.2.5/powerpc-405-linux-gnu/./lib/libdl.so.2: ELF file data encoding not little-endian



--- gcc-3.3/gcc/testsuite/g++.dg/compat/compat.exp.old	Thu Oct 17 17:22:57 2002
+++ gcc-3.3/gcc/testsuite/g++.dg/compat/compat.exp	Mon Jul 14 10:59:19 2003
@@ -42,11 +42,13 @@
 proc compat-fix-library-path { } {
     global ld_library_path
 
-    # See comments in lib/g++.exp for why this is needed.
-    setenv  LD_LIBRARY_PATH     $ld_library_path
-    setenv  SHLIB_PATH          $ld_library_path
-    setenv  LD_LIBRARYN32_PATH  $ld_library_path
-    setenv  LD_LIBRARY64_PATH   $ld_library_path
+    if {![is_remote target]} {
+	# See comments in lib/g++.exp for why this is needed.
+	setenv  LD_LIBRARY_PATH     $ld_library_path
+	setenv  SHLIB_PATH          $ld_library_path
+	setenv  LD_LIBRARYN32_PATH  $ld_library_path
+	setenv  LD_LIBRARY64_PATH   $ld_library_path
+    }
 }
 
 #
--- gcc-3.4-20030813/gcc/testsuite/lib/g++.exp.orig	Tue Jun 17 18:56:45 2003
+++ gcc-3.4-20030813/gcc/testsuite/lib/g++.exp	Sun Aug 17 18:35:38 2003
@@ -166,16 +182,20 @@
       }
     }
 
-    # On IRIX 6, we have to set variables akin to LD_LIBRARY_PATH, but
-    # called LD_LIBRARYN32_PATH (for the N32 ABI) and LD_LIBRARY64_PATH
-    # (for the 64-bit ABI).  The right way to do this would be to modify
-    # unix.exp -- but that's not an option since it's part of DejaGNU
-    # proper, so we do it here.  We really only need to do 
-    # this on IRIX, but it shouldn't hurt to do it anywhere else.
-    setenv  LD_LIBRARY_PATH     $ld_library_path
-    setenv  SHLIB_PATH          $ld_library_path
-    setenv  LD_LIBRARYN32_PATH  $ld_library_path
-    setenv  LD_LIBRARY64_PATH   $ld_library_path
+    if {![is_remote target]} {
+      # On IRIX 6, we have to set variables akin to LD_LIBRARY_PATH, but
+      # called LD_LIBRARYN32_PATH (for the N32 ABI) and LD_LIBRARY64_PATH
+      # (for the 64-bit ABI).  The right way to do this would be to modify
+      # unix.exp -- but that's not an option since it's part of DejaGNU
+      # proper, so we do it here.  We really only need to do 
+      # this on IRIX, but it shouldn't hurt to do it anywhere else.
+
+      # Doing this causes us to be unable to run cross-compilers.
+      setenv  LD_LIBRARY_PATH     $ld_library_path
+      setenv  SHLIB_PATH          $ld_library_path
+      setenv  LD_LIBRARYN32_PATH  $ld_library_path
+      setenv  LD_LIBRARY64_PATH   $ld_library_path
+    }
 
     return "$flags"
 }