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

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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>
This commit is contained in:
Daniel Jacobowitz 2005-09-30 00:17:35 +01:00 committed by Russell King
parent fc611a1a50
commit dce79affd5
1 changed files with 2 additions and 0 deletions
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2
include/asm-arm/elf.h
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@ -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