fad8d6b6c
Denys Vlasenko
2020-12-15
Subject
build system: combat gcc zealotry in data alignment, now for x86_64 too
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arch/x86_64/Makefile+11 -0
| @@ -0,0 +1,11 @@ | |
| + | # ========================================================================== |
| + | # Build system |
| + | # ========================================================================== |
| + | |
| + | # "Control how GCC aligns variables. |
| + | # Supported values for type are compat uses increased alignment value |
| + | # compatible uses GCC 4.8 and earlier, abi uses alignment value as specified by the psABI, |
| + | # and cacheline uses increased alignment value to match the cache line size. |
| + | # compat is the default." |
| + | # "abi" seems to be somewhat successful in preventing oversealous data alignment. |
| + | CFLAGS += $(call cc-option,-malign-data=abi,) |