X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/2bfed17db25367442c6ad57a76a3c998ec84889c..a63deed1722fbe3f08d72400793197200ba58062:/common/ldscript.common

diff --git a/common/ldscript.common b/common/ldscript.common
index 4c4bd390..e149b452 100644
--- a/common/ldscript.common
+++ b/common/ldscript.common
@@ -1,3 +1,13 @@
+/*
+-----------------------------------------------------------------------------
+ This code is licensed to you under the terms of the GNU GPL, version 2 or,
+ at your option, any later version. See the LICENSE.txt file for the text of
+ the license.
+-----------------------------------------------------------------------------
+ Common linker script
+-----------------------------------------------------------------------------
+*/
+
 /* AT91SAM7S256 has 256k Flash and 64k RAM */
 MEMORY 
 {
@@ -11,6 +21,15 @@ MEMORY
         bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
         fpgaimage  : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000 /* Place where the FPGA image will end up */
         osimage    : ORIGIN = 0x00110000, LENGTH = 256K - 64k /* Place where the main OS will end up */
-        ram        : ORIGIN = 0x00200000, LENGTH = 64K
+        ram        : ORIGIN = 0x00200000, LENGTH = 64K - 0x20 /* RAM, minus small common area */
+        commonarea : ORIGIN = 0x00200000 + 64K - 0x20, LENGTH = 0x20 /* Communication between bootloader and main OS */
 }
 
+/* Export some information that can be used from within the firmware */
+_bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4;
+_osimage_entry = ORIGIN(osimage);
+_bootrom_start = ORIGIN(bootphase1);
+_bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
+_flash_start = ORIGIN(bootphase1);
+_flash_end = ORIGIN(osimage) + LENGTH(osimage);
+_stack_end = ORIGIN(ram) + LENGTH(ram) - 8;