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From: Albert ARIBAUD <albert.u.boot@aribaud.net>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] openrd: disable private arch memset, memcpy and libgcc
Date: Sun, 26 Feb 2017 16:29:32 +0100	[thread overview]
Message-ID: <20170226152932.5628-1-albert.u.boot@aribaud.net> (raw)

The switch to private LIBGCC causes 'undefined instruction'
exception in at least the Open-RD Ultimate and Client, and
quite probably the Open-RD Base as well.

While debugging this issue, it appeared the switch to
architecture-optimized memset and memcpy also causes the
same exceptions.

Until a fix to private libgcc and architecture-optimized
memcpy and memset is mainlined, disable their use in all
openrd configurations.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
---

 configs/openrd_base_defconfig     | 4 ++++
 configs/openrd_client_defconfig   | 4 ++++
 configs/openrd_ultimate_defconfig | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/configs/openrd_base_defconfig b/configs/openrd_base_defconfig
index 067ddbc5cc..4b8c51a771 100644
--- a/configs/openrd_base_defconfig
+++ b/configs/openrd_base_defconfig
@@ -21,3 +21,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y
+# Private memcpy, memset and libgcc cause undefined instruction exceptions
+CONFIG_USE_ARCH_MEMSET=n
+CONFIG_USE_ARCH_MEMCPY=n
+CONFIG_USE_PRIVATE_LIBGCC=n
diff --git a/configs/openrd_client_defconfig b/configs/openrd_client_defconfig
index b90ead158f..04f243a57b 100644
--- a/configs/openrd_client_defconfig
+++ b/configs/openrd_client_defconfig
@@ -21,3 +21,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y
+# Private memcpy, memset and libgcc cause undefined instruction exceptions
+CONFIG_USE_ARCH_MEMSET=n
+CONFIG_USE_ARCH_MEMCPY=n
+CONFIG_USE_PRIVATE_LIBGCC=n
diff --git a/configs/openrd_ultimate_defconfig b/configs/openrd_ultimate_defconfig
index 2bc8ace8d0..c8d4c3176f 100644
--- a/configs/openrd_ultimate_defconfig
+++ b/configs/openrd_ultimate_defconfig
@@ -21,3 +21,7 @@ CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y
+# Private memcpy, memset and libgcc cause undefined instruction exceptions
+CONFIG_USE_ARCH_MEMSET=n
+CONFIG_USE_ARCH_MEMCPY=n
+CONFIG_USE_PRIVATE_LIBGCC=n
-- 
2.11.0

             reply	other threads:[~2017-02-26 15:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-26 15:29 Albert ARIBAUD [this message]
2017-02-27  1:04 ` [U-Boot] [PATCH] openrd: disable private arch memset, memcpy and libgcc Tom Rini

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