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From:   Zong Li <zong.li@sifive.com>
To:     palmer@dabbelt.com, paul.walmsley@sifive.com,
        aou@eecs.berkeley.edu, mhiramat@kernel.org,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     Zong Li <zong.li@sifive.com>,
        Palmer Dabbelt <palmerdabbelt@google.com>
Subject: [PATCH v4 7/9] riscv: move exception table immediately after RO_DATA
Date:   Tue,  7 Apr 2020 22:46:52 +0800
Message-Id: <1d1d278ca3957db9103f40ddda008128365d6d72.1586265122.git.zong.li@sifive.com>
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References: <cover.1586265122.git.zong.li@sifive.com>
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Move EXCEPTION_TABLE immediately after RO_DATA. Make it easy to set the
attribution of the sections which should be read-only at a time.
Add _data to specify the start of data section with write permission.
This patch is prepared for STRICT_KERNEL_RWX support.

Signed-off-by: Zong Li <zong.li@sifive.com>
Suggested-by: Palmer Dabbelt <palmerdabbelt@google.com>
---
 arch/riscv/kernel/vmlinux.lds.S | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
index 1e0193ded420..02e948b620af 100644
--- a/arch/riscv/kernel/vmlinux.lds.S
+++ b/arch/riscv/kernel/vmlinux.lds.S
@@ -58,6 +58,10 @@ SECTIONS
 		*(.srodata*)
 	}
 
+	EXCEPTION_TABLE(0x10)
+
+	_data = .;
+
 	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
 	.sdata : {
 		__global_pointer$ = . + 0x800;
@@ -69,8 +73,6 @@ SECTIONS
 
 	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
 
-	EXCEPTION_TABLE(0x10)
-
 	.rel.dyn : {
 		*(.rel.dyn*)
 	}
-- 
2.26.0