Commit dce79aff authored Sep 30, 2005 by Daniel Jacobowitz Committed by Russell King Sep 30, 2005

[ARM] 2941/1: Fix running legacy binaries from a soft-float root filesystem with CONFIG_IWMMXT.



Patch from Daniel Jacobowitz

Thread flags are inherited on fork().  In order for a binary which has
the iWMMXt coprocessor enabled to run a binary which needs the FPA
emulation, we need to explicitly clear TIF_USING_IWMMXT if we are not
going to set it.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent fc611a1a

include/asm-arm/elf.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,8 @@ do { \
		if (((ex).e_flags & EF_ARM_EABI_MASK) \|\| \
		((ex).e_flags & EF_ARM_SOFT_FLOAT)) \
		set_thread_flag(TIF_USING_IWMMXT); \
		else \
		clear_thread_flag(TIF_USING_IWMMXT); \
		} while (0)

		#endif