Changeset 1dfe239 in clfs-embedded for BOOK/cross-tools

Timestamp:

Apr 14, 2017, 3:07:36 AM (8 years ago)

Author:

Andrew Bradford <andrew@…>

Branches:

master

Children:

4d9350d

Parents:

a3957dd

Message:

cross-tools/toolchain: Use --sysroot= for CC, CXX, and LD

This allows the compiler and linker to use the targetfs directory
structure as the sysroot for compiling but will mean that we have to
build musl one more time in the final-system chapter.

File:

• BOOK/cross-tools/common/toolchain.xml (modified) (1 diff)

BOOK/cross-tools/common/toolchain.xml

@@ -11 +11 @@
   <title>ToolChain Variables</title>
 
-  <para>Setup target-specific variables for the compiler
-  and linkers. This time we keep them:</para>
+  <para>Setup target-specific variables for the compiler, linker, and other
+    compile-time tools.  For the compiler and linker, use the target file system
+    directory as a sysroot rather than the sysroot we setup before for the
+    cross-tools. This time we write them to <filename>~/.bashrc</filename> so
+    that they persist even if the clfs user logs out:</para>
 
-<screen><userinput>echo <literal>export CC=\""${CLFS_TARGET}-gcc\""</literal> &gt;&gt; ~/.bashrc
-echo <literal>export CXX=\""${CLFS_TARGET}-g++\""</literal> &gt;&gt; ~/.bashrc
+<screen><userinput>echo <literal>export CC=\""${CLFS_TARGET}-gcc --sysroot=${CLFS}/targetfs\""</literal> &gt;&gt; ~/.bashrc
+echo <literal>export CXX=\""${CLFS_TARGET}-g++ --sysroot=${CLFS}/targetfs\""</literal> &gt;&gt; ~/.bashrc
 echo <literal>export AR=\""${CLFS_TARGET}-ar\""</literal> &gt;&gt; ~/.bashrc
 echo <literal>export AS=\""${CLFS_TARGET}-as\""</literal> &gt;&gt; ~/.bashrc
-echo <literal>export LD=\""${CLFS_TARGET}-ld\""</literal> &gt;&gt; ~/.bashrc
+echo <literal>export LD=\""${CLFS_TARGET}-ld --sysroot=${CLFS}/targetfs\""</literal> &gt;&gt; ~/.bashrc
 echo <literal>export RANLIB=\""${CLFS_TARGET}-ranlib\""</literal> &gt;&gt; ~/.bashrc
 echo <literal>export READELF=\""${CLFS_TARGET}-readelf\""</literal> &gt;&gt; ~/.bashrc