[rtems commit] bsps/x86_64: Reduce default RamSize to 1GiB

[Joel Sherrill]

Module:    rtems
Branch:    master
Commit:    6eccd0c7e7b0e84e2ff6394b842addbb1b0be309
Changeset: http://git.rtems.org/rtems/commit/?id=6eccd0c7e7b0e84e2ff6394b842addbb1b0be309

Author:    Amaan Cheval <amaan.cheval at gmail.com>
Date:      Mon Aug 13 16:13:51 2018 +0530

bsps/x86_64: Reduce default RamSize to 1GiB

Simulators may not always be able to allocate 4GiB easily, and using an
artificially lower RAM may cause a broken heap.

Updates #2898.

---

 bsps/x86_64/amd64/start/linkcmds | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/bsps/x86_64/amd64/start/linkcmds b/bsps/x86_64/amd64/start/linkcmds
index 46b1ccb..ecb4a2b 100644
--- a/bsps/x86_64/amd64/start/linkcmds
+++ b/bsps/x86_64/amd64/start/linkcmds
@@ -23,15 +23,15 @@ HeapSize = DEFINED(HeapSize)  ? HeapSize  :
 RamBase = DEFINED(RamBase)    ? RamBase   :
           DEFINED(_RamBase)   ? _RamBase  : 0x0;
 
-/* XXX: Defaulting to 4GiB.
+/* XXX: Defaulting to 1GiB.
  */
 RamSize = DEFINED(RamSize)    ? RamSize   :
-          DEFINED(_RamSize)   ? _RamSize  : 0xFFFFFFFF;
+          DEFINED(_RamSize)   ? _RamSize  : 0x40000000;
 
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
-  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x400000)); . = SEGMENT_START("text-segment", 0x400000) + SIZEOF_HEADERS;
+  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x00100000)); . = SEGMENT_START("text-segment", 0x00100000) + SIZEOF_HEADERS;
   .interp         : { *(.interp) }
   .note.gnu.build-id : { *(.note.gnu.build-id) }
   .hash           : { *(.hash) }