35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 2eb52cc0dd1ce02871d4f863649a8656831805c7 Mon Sep 17 00:00:00 2001
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From: hongrongxuan <hongrongxuan@huawei.com>
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Date: Tue, 25 Oct 2022 21:24:21 +0800
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Subject: [PATCH] add Wl,-z,noseparate-code for so
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binutils 2.31 add a separate-code(default)/noseparate-code link option to separate
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.rodata from .text segment. Cause this is a dubious feature that intends to
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reduce the number of ROP gadgets, and this will reduce batch program's
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performance, like unixbench shell program, it will reduce 8%~10%. So
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add 'Wl,-z,noseparate-code' to disable this feature.
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Refrences:
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https://sourceware.org/pipermail/binutils/2018-February/101950.html
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https://reviews.llvmm.org/D64903
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https://packagehub.suse.com/packages/binutils/2_37-1050100_7_34_1/
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---
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Makeconfig | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/Makeconfig b/Makeconfig
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index 92e76d62..28cea3de 100644
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--- a/Makeconfig
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+++ b/Makeconfig
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@@ -366,7 +366,7 @@ LDFLAGS.so += $(combreloc-LDFLAGS)
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LDFLAGS-rtld += $(combreloc-LDFLAGS)
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endif
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-relro-LDFLAGS = -Wl,-z,relro
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+relro-LDFLAGS = -Wl,-z,relro -Wl,-z,noseparate-code
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LDFLAGS.so += $(relro-LDFLAGS)
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LDFLAGS-rtld += $(relro-LDFLAGS)
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--
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2.27.0
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