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24 lines
700 B
Diff
24 lines
700 B
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Tue, 13 Sep 2016 22:05:56 -0400
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Subject: [PATCH] use -fwrapv when signed overflow checking is off
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---
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core/config_sanitizers.mk | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
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index d570ccda8e..b200572d32 100644
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--- a/core/config_sanitizers.mk
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+++ b/core/config_sanitizers.mk
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@@ -367,3 +367,9 @@ ifneq ($(my_sanitize_diag),)
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endif
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endif
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endif
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+
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+ifeq ($(filter signed-integer-overflow integer undefined,$(my_sanitize)),)
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+ ifeq ($(filter -ftrapv,$(my_cflags)),)
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+ my_cflags += -fwrapv
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+ endif
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+endif
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