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authorDaniel Jacobowitz <drow@false.org>2005-09-30 00:17:35 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-09-30 00:17:35 +0100
commitdce79affd5d04e9cbabe35016eda55213b9b36f6 (patch)
treefd9516ac2ac1900d733c984fde73764994b86eb0
parentfc611a1a50caa04bae82ed3c1fc6505132f8343f (diff)
[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>
-rw-r--r--include/asm-arm/elf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h
index a1696ba238d..7da97a93754 100644
--- a/include/asm-arm/elf.h
+++ b/include/asm-arm/elf.h
@@ -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