Add support for x86-elf

Change-Id: I36fee471c96e1c3e0fc4f1d2214c8ca518fd050b
TN: T803-028

Author: burratoo

db/cross.xml

@@ -31,6 +31,7 @@
    <configuration>
      <targets>
        <target name="^x86_64-elf$" />
+       <target name="^i686-elf$" />
        <target name="^visium-elf$" />
        <target name="^riscv64-elf$" />
        <target name="^riscv32-elf$" />

db/linker.xml

@@ -298,6 +298,18 @@
     </config>
   </configuration>
 
+  <configuration>
+    <targets>
+      <target name="^i686-elf$" />
+    </targets>
+    <config>
+   for Archive_Builder  use ("i686-elf-ar", "cr");
+   for Archive_Builder_Append_Option use ("q");
+   for Archive_Indexer  use ("-ranlib");
+   for Archive_Suffix   use ".a";
+    </config>
+  </configuration>
+
   <configuration>
     <targets>
       <target name="^visium-elf$" />
@@ -765,6 +777,7 @@
   <configuration>
     <targets negate="true">
       <target name="^x86_64-elf$"/>
+      <target name="^i686-elf$"/>
       <target name="^.*-wrs-vxworks.*$" />
       <target name="^visium-elf$"/>
       <target name="^riscv64-elf$"/>
@@ -852,6 +865,7 @@
        <target name="^.*aix.*$" />
        <target name="^.*lynxos.*$" />
        <target name="^x86_64-elf$" />
+       <target name="^i686-elf$" />
        <target name="^visium-elf$" />
        <target name="^riscv64-elf$" />
        <target name="^riscv32-elf$" />
@@ -1466,6 +1480,7 @@
        <target name="^.*-wrs-vxworks.*$" />
        <target name="^.*-elf-lynx.*$" />
        <target name="^x86_64-elf$" />
+       <target name="^i686-elf$" />
        <target name="^visium-elf$" />
        <target name="^riscv64-elf$" />
        <target name="^riscv32-elf$" />
@@ -1518,6 +1533,7 @@
        <target name="^.*wrs-vxworks.*$" />
        <target name="^.*-elf-lynx.*$" />
        <target name="^x86_64-elf$" />
+       <target name="^i686-elf$" />
        <target name="^visium-elf$" />
        <target name="^riscv64-elf$" />
        <target name="^riscv32-elf$" />
@@ -1553,6 +1569,7 @@
        <target name="^.*wrs-vxworks.*$" />
        <target name="^.*-elf-lynx.*$" />
        <target name="^x86_64-elf$" />
+       <target name="^i686-elf$" />
        <target name="^visium-elf$" />
        <target name="^riscv64-elf$" />
        <target name="^riscv32-elf$" />

db/targetset.xml

@@ -472,6 +472,12 @@
     <target>arm-eabi</target>
   </targetset>
 
+  <!-- x86-elf-.*  -->
+  <targetset canonical="x86-elf">
+    <target>x86-elf</target>
+    <target>i686-elf</target>
+  </targetset>
+
   <!-- avr -->
   <targetset canonical="avr-elf">
     <target>avr-elf</target>