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Commit 8993a44c authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Russell King
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[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 Original line Diff line number Diff line
@@ -602,7 +602,7 @@ comment "At least one emulation must be selected" 




config FPE_NWFPE

config FPE_NWFPE

	bool "NWFPE math emulation"

	bool "NWFPE math emulation"

	depends on !AEABI

	depends on !AEABI || OABI_COMPAT

	---help---

	---help---

	  Say Y to include the NWFPE floating point emulator in the kernel.

	  Say Y to include the NWFPE floating point emulator in the kernel.

	  This is necessary to run most binaries. Linux does not currently

	  This is necessary to run most binaries. Linux does not currently
@@ -626,7 +626,7 @@ config FPE_NWFPE_XP 




config FPE_FASTFPE

config FPE_FASTFPE

	bool "FastFPE math emulation (EXPERIMENTAL)"

	bool "FastFPE math emulation (EXPERIMENTAL)"

	depends on !AEABI && !CPU_32v3 && EXPERIMENTAL

	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL

	---help---

	---help---

	  Say Y here to include the FAST floating point emulator in the kernel.

	  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

	  This is an experimental much faster emulator which now also has full

arch/arm/nwfpe/fpa11.h

+2 −2
Original line number Original line Diff line number Diff line
@@ -62,7 +62,7 @@ typedef union tagFPREG { 
#else

#else

	u32 padding[3];

	u32 padding[3];

#endif

#endif

} FPREG;

} __attribute__ ((packed,aligned(4))) FPREG;





/*

/*

 * FPA11 device model.

 * FPA11 device model.
@@ -89,7 +89,7 @@ typedef struct tagFPA11 { 
				   so we can use it to detect whether this

				   so we can use it to detect whether this

				   instance of the emulator needs to be

				   instance of the emulator needs to be

				   initialised. */

				   initialised. */

} FPA11;

} __attribute__ ((packed,aligned(4))) FPA11;





extern int8 SetRoundingMode(const unsigned int);

extern int8 SetRoundingMode(const unsigned int);

extern int8 SetRoundingPrecision(const unsigned int);

extern int8 SetRoundingPrecision(const unsigned int);