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In cases where x30 is used as a temporary in the out-of-line ll/sc atomics (e.g. atomic_fetch_add), the compiler tends to put out a full stackframe, which included pointing the x29 at the new frame. Since these things aren't traceable anyway, we can pass -fomit-frame-pointer to reduce the work when spilling. Since this is incompatible with -pg, we also remove that from the CFLAGS for this file. Signed-off-by: Will Deacon <will.deacon@arm.com> |
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boot | ||
configs | ||
crypto | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
net | ||
xen | ||
Kconfig | ||
Kconfig.debug | ||
Kconfig.platforms | ||
Makefile |