[OpenBIOS] [PATCH] forthstrap: avoid unaligned accesses

[Aurelien Jarno]

Trying to compile OpenBIOS for SPARC32 on a SPARC machine, I get a
SIGBUS within forthstrap, more precisely accessing reloc_table in
load_dictionary. This table is not aligned because the dictionnary
head as a size which is not a multiple of 4.

This is due to the file QEMU,tcx.bin which is being encoded, and which
has a size which is not a multiple of 4. Fix that by adding some padding
after the encoded data.

Signed-off-by: Aurelien Jarno 
---
 kernel/bootstrap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/bootstrap.c b/kernel/bootstrap.c
index 546ffee..7f4458e 100644
--- a/kernel/bootstrap.c
+++ b/kernel/bootstrap.c
@@ -1008,6 +1008,7 @@ encode_file( const char *name )
    PUSH( pointer2cell(dict + dicthead) );
    PUSH( size );
    dicthead += size;
+	paddict(sizeof(cell));
 }