From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 1/2] toolchain/external: copy libssp.so if SSP is enabled
Date: Sat, 7 Sep 2019 21:23:13 +0200 [thread overview]
Message-ID: <20190907212313.00ddaff2@windsurf> (raw)
In-Reply-To: <7a178308-1946-de53-0f68-b1191b91fcf8@smile.fr>
Hello Romain,
On Sat, 7 Sep 2019 15:18:06 +0200
Romain Naour <romain.naour@smile.fr> wrote:
> I'm unable to reproduce the issue with the following defconfig:
>
> BR2_aarch64=y
> BR2_SSP_ALL=y
> BR2_TOOLCHAIN_EXTERNAL=y
> BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
> BR2_SYSTEM_DHCP="eth0"
> BR2_LINUX_KERNEL=y
> BR2_LINUX_KERNEL_CUSTOM_VERSION=y
> BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.19.16"
> BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
> BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
> BR2_PACKAGE_SOX=y
> BR2_TARGET_ROOTFS_EXT2=y
> BR2_TARGET_ROOTFS_EXT2_4=y
> # BR2_TARGET_ROOTFS_TAR is not set
>
> This defconfig use the external toolchain from ARM that provide SSP support.
> But there is no libssp.so in this toolchain.
>
> Also, libssp from gcc is disabled in Buildroot for internal toolchain since a while:
> https://git.buildroot.net/buildroot/commit/?id=3b712a3d891bf23055a587fc518f7cd2139a6a09
>
> In Buildroot, we are using libssp provided by the C library (glibc,
> musl, uClibc-ng) when available. We are not using libssp from gcc.
>
> Can you describe your issue ? Are you using a custom external toolchain ?
Yes, I suspect Yann is using a custom external toolchain where the SSP
runtime support is provided by gcc and not by the C library.
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2019-09-07 19:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-02 6:37 [Buildroot] [PATCH 1/2] toolchain/external: copy libssp.so if SSP is enabled Yann Droneaud
2019-09-02 6:37 ` [Buildroot] [PATCH 2/2] packages/sox: disable stack protector if SSP is not enabled Yann Droneaud
2019-09-07 13:38 ` Romain Naour
2019-09-09 19:54 ` Yann Droneaud
2019-09-07 13:18 ` [Buildroot] [PATCH 1/2] toolchain/external: copy libssp.so if SSP is enabled Romain Naour
2019-09-07 19:23 ` Thomas Petazzoni [this message]
2019-09-09 19:56 ` Yann Droneaud
2019-09-09 20:11 ` Yann Droneaud
2019-09-09 21:23 ` Romain Naour
2019-09-23 9:36 ` Yann Droneaud
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