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f49d4aebe2
CONFIG_FORTIFY_SOURCE=y is already set in the generic kernel
configuration, but it is not working for MIPS on kernel 5.4, support for
MIPS was only added with kernel 5.5, other architectures like aarch64
support FORTIFY_SOURCE already since some time.
This patch adds support for FORTIFY_SOURCE to MIPS with kernel 5.4,
kernel 5.10 already supports this and needs no changes.
This backports one patch from kernel 5.5 and one fix from 5.8 to make
fortify source also work on our kernel 5.4.
The changes are not compatible with the
306-mips_mem_functions_performance.patch patch which was also removed
with kernel 5.10, probably because of the same problems. I think it is
not needed anyway as the compiler should automatically optimize the
calls to memset(), memcpy() and memmove() even when not explicitly
telling the compiler to use the build in variant.
This increases the size of an uncompressed kernel by less than 1 KB.
Acked-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 9ffa2f8193)
27 lines
885 B
Diff
27 lines
885 B
Diff
From 1f0400d0e2c410b04f246aefb2e9b5155eb4b0bf Mon Sep 17 00:00:00 2001
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From: Chuanhong Guo <gch981213@gmail.com>
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Date: Tue, 13 Oct 2020 10:05:47 +0800
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Subject: mips: ralink: enable zboot support
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Some of these ralink devices come with an ancient u-boot which can't
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extract LZMA properly when image gets too big.
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Enable zboot support to get a self-extracting kernel instead of relying
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on broken u-boot support.
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Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
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Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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---
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arch/mips/Kconfig | 1 +
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1 file changed, 1 insertion(+)
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -626,6 +626,7 @@ config RALINK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_MIPS16
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+ select SYS_SUPPORTS_ZBOOT
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select SYS_HAS_EARLY_PRINTK
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select CLKDEV_LOOKUP
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select ARCH_HAS_RESET_CONTROLLER
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