From: Keir Fraser <keir.fraser@citrix.com>
Date: Thu, 8 Jul 2010 08:52:01 +0000 (+0100)
Subject: rombios: use explicit SS prefix for calculated on-stack array accesses.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~11829
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=f3e5b69ec8d1ae2a3621b4940d460f4c46bac1a3;p=xen.git

rombios: use explicit SS prefix for calculated on-stack array accesses.

The bcc compiler gets constant array offsets right but does all
calculated array offsets via DS.

Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
---

diff --git a/tools/firmware/rombios/rombios.c b/tools/firmware/rombios/rombios.c
index 4e0157c80f..f3363e9f94 100644
--- a/tools/firmware/rombios/rombios.c
+++ b/tools/firmware/rombios/rombios.c
@@ -3735,10 +3735,10 @@ cdrom_boot()
   // Validity checks
   if(buffer[0]!=0)return 4;
   for(i=0;i<5;i++){
-    if(buffer[1+i]!=read_byte(0xf000,&isotag[i]))return 5;
+    if(read_byte(get_SS(),&buffer[1+i])!=read_byte(0xf000,&isotag[i]))return 5;
    }
   for(i=0;i<23;i++)
-    if(buffer[7+i]!=read_byte(0xf000,&eltorito[i]))return 6;
+    if(read_byte(get_SS(),&buffer[7+i])!=read_byte(0xf000,&eltorito[i]))return 6;
 
   // ok, now we calculate the Boot catalog address
   lba=buffer[0x4A]*0x1000000+buffer[0x49]*0x10000+buffer[0x48]*0x100+buffer[0x47];