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cross-ppc-gcc48-icecream-backend
tls-no-direct.diff
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File tls-no-direct.diff of Package cross-ppc-gcc48-icecream-backend
Index: gcc/config/i386/gnu-user-common.h =================================================================== --- gcc/config/i386/gnu-user-common.h.orig 2012-12-11 12:44:53.918094370 +0100 +++ gcc/config/i386/gnu-user-common.h 2012-12-11 12:44:55.467094317 +0100 @@ -26,8 +26,12 @@ along with GCC; see the file COPYING3. #define DEFAULT_PCC_STRUCT_RETURN 1 /* We arrange for the whole %fs segment to map the tls area. */ +/* This slows down Xen, so take a very small general performance hit + for not accessing the %fs segment with negative offsets by making + GCC not emit direct accesses to %fs at all. #undef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT #define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT MASK_TLS_DIRECT_SEG_REFS + */ #define TARGET_OS_CPP_BUILTINS() \ do \
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