[ARM] 3111/2: old ABI compat: adjust NWFPE to be operational within an EABI kernel

Patch from Nicolas Pitre

We need NWFPE if we want to support execution of legacy binaries with
an EABI kernel.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 4 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ead6172692db..cb66b5745fa0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -602,7 +602,7 @@ comment "At least one emulation must be selected"
 
 config FPE_NWFPE
         bool "NWFPE math emulation"
-        depends on !AEABI
+        depends on !AEABI || OABI_COMPAT
         ---help---
           Say Y to include the NWFPE floating point emulator in the kernel.
           This is necessary to run most binaries. Linux does not currently
@@ -626,7 +626,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
         bool "FastFPE math emulation (EXPERIMENTAL)"
-        depends on !AEABI && !CPU_32v3 && EXPERIMENTAL
+        depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
         ---help---
           Say Y here to include the FAST floating point emulator in the kernel.
           This is an experimental much faster emulator which now also has full
diff --git a/arch/arm/nwfpe/fpa11.h b/arch/arm/nwfpe/fpa11.h
index da4c616b6c49..28cd79a451d3 100644
--- a/arch/arm/nwfpe/fpa11.h
+++ b/arch/arm/nwfpe/fpa11.h
@@ -62,7 +62,7 @@ typedef union tagFPREG {
 #else
         u32 padding[3];
 #endif
-} FPREG;
+} __attribute__ ((packed,aligned(4))) FPREG;
 
 /*
  * FPA11 device model.
@@ -89,7 +89,7 @@ typedef struct tagFPA11 {
                                    so we can use it to detect whether this
                                    instance of the emulator needs to be
                                    initialised. */
-} FPA11;
+} __attribute__ ((packed,aligned(4))) FPA11;
 
 extern int8 SetRoundingMode(const unsigned int);
 extern int8 SetRoundingPrecision(const unsigned int);