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65b8cfb2a

Denis Vlasenko
Denis Vlasenko
2007-07-23
FAILED Duration: 13s

Subject

add comment why preferred stack boundary is 4 on i386

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Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

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arch/i386/Makefile +2 -0
arch/i386/Makefile+2 -0
@@ -2,4 +2,6 @@
# Build system
# ==========================================================================
+# -mpreferred-stack-boundary=2 is essential in preventing gcc 4.2.x
+# from aligning stack to 16 bytes. (Which is gcc's way of supporting SSE).
CFLAGS += $(call cc-option,-march=i386 -mpreferred-stack-boundary=2,)