Changeset fac8a3a in rtems for c/src/lib/libbsp/sparc/shared/start/start.S

Timestamp:

Nov 2, 2016, 9:01:36 AM (4 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

5, master

Children:

d057d653

Parents:

b7694c8c

git-author:

Sebastian Huber <sebastian.huber@…> (11/02/16 09:01:36)

git-committer:

Sebastian Huber <sebastian.huber@…> (11/02/16 09:05:40)

Message:

bsps/sparc: Fix copy of initialized data

The text and data sections may have different alignment requirements.
Support a data section alignment greater than 16.

File:

• c/src/lib/libbsp/sparc/shared/start/start.S (modified) (1 diff)

c/src/lib/libbsp/sparc/shared/start/start.S

@@ -360 +360 @@
          *  Copy the initialized data to RAM
          *
-         *  FROM:   _endtext
+         *  FROM:   _data_load_start
          *  TO:     _data_start
          *  LENGTH: (__bss_start - _data_start) bytes
          */
 
-        sethi %hi(_endtext),%g1
-        or    %g1,%lo(_endtext),%g1     ! g1 = start of initialized data in ROM
-
-        sethi %hi(_data_start),%g3
-        or    %g3,%lo(_data_start),%g3  ! g3 = start of initialized data in RAM
-
-        sethi %hi(__bss_start), %g2
-        or    %g2,%lo(__bss_start),%g2  ! g2 = end of initialized data in RAM
+        sethi %hi(_data_load_start),%g1 ! g1 = start of initialized data in ROM
+        or    %g1,%lo(_data_load_start),%g1
+
+        sethi %hi(_data_start),%g3      ! g3 = start of initialized data in RAM
+        or    %g3,%lo(_data_start),%g3
+
+        sethi %hi(__bss_start), %g2     ! g2 = end of initialized data in RAM
+        or    %g2,%lo(__bss_start),%g2
 
         cmp   %g1, %g3