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24 lines
717 B
Diff
24 lines
717 B
Diff
From 63c497725740bfb6c673456d38f14d8c6030c991 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 d3adee5ae2..83988bb603 100644
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--- a/core/config_sanitizers.mk
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+++ b/core/config_sanitizers.mk
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@@ -435,3 +435,9 @@ ifneq ($(findstring fsanitize,$(my_cflags)),)
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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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