Commit 8993a44c authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Russell King
Browse files

[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: default avatarNicolas Pitre <nico@cam.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent dd35afc2

arch/arm/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -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

arch/arm/nwfpe/fpa11.h

+2 −2
Original line number Diff line number Diff line
@@ -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);