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[v2,06/18] linux-user: arm: set CPSR.E/SCTLR.E0E correctly for BE mode

Message ID 75f4a1d32f0ad13bb30bcec74ac618d4ec57bfd7.1456901522.git.crosthwaite.peter@gmail.com
State New
Headers show

Commit Message

Peter Crosthwaite March 2, 2016, 6:56 a.m. UTC 
From: Peter Crosthwaite <peter.crosthwaite@xilinx.com>

If doing big-endian linux-user mode, set both the CPSR.E and SCTLR.E0E
bits. This sets big-endian mode for data accesses.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
TEST result: 0 (log@ logs/qemu-armeb-BE32-)
TEST result: 0 (log@ logs/qemu-armeb-BE8-)
TEST result: 0 (log@ logs/qemu-arm-LE-)
TEST result: 0 (log@ logs/qemu-system-arm-LE-)
changed since v1:
Removed claim of AA64 support from commit message

 linux-user/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/linux-user/main.c b/linux-user/main.c
index fe2a8dd..510b3b7 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -4453,7 +4453,8 @@  int main(int argc, char **argv, char **envp)
         /* Enable BE8.  */
         if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
             && (info->elf_flags & EF_ARM_BE8)) {
-            /* nothing for now, CPSR.E not emulated yet */
+            env->uncached_cpsr |= CPSR_E;
+            env->cp15.sctlr_el[1] |= SCTLR_E0E;
         } else {
             env->cp15.sctlr_el[1] |= SCTLR_B;
         }