From d9443cbd98f2d4717d84d8325fc6099f5a3e6a25 Mon Sep 17 00:00:00 2001 From: Zhenhua Luo Date: Mon, 9 Nov 2015 23:14:28 +0800 Subject: linux-qoriq: fix the kernel hang issue with gcc-5.2 Backport a patch to fix the kernel hang issue when the uImage is built by gcc-5.2. The details can be found in https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e95235 Signed-off-by: Zhenhua Luo (cherry picked from commit 95d9f9aba81ccdae53011ac8c6fbbc2605b9cedc) --- .../0001-powerpc-Align-TOC-to-256-bytes.patch | 37 ++++++++++++++++++++++ recipes-kernel/linux/linux-qoriq_3.12.bb | 1 + 2 files changed, 38 insertions(+) create mode 100644 recipes-kernel/linux/files/0001-powerpc-Align-TOC-to-256-bytes.patch diff --git a/recipes-kernel/linux/files/0001-powerpc-Align-TOC-to-256-bytes.patch b/recipes-kernel/linux/files/0001-powerpc-Align-TOC-to-256-bytes.patch new file mode 100644 index 0000000..2131c9d --- /dev/null +++ b/recipes-kernel/linux/files/0001-powerpc-Align-TOC-to-256-bytes.patch @@ -0,0 +1,37 @@ +From 7d4d16a6ccdd6d965b84284262a67d5b63426d50 Mon Sep 17 00:00:00 2001 +From: Zhenhua Luo +Date: Mon, 9 Nov 2015 04:36:29 -0600 +Subject: [PATCH] powerpc: Align TOC to 256 bytes + +Recent toolchains(gcc-5.2) force the TOC to be 256 byte aligned. We need +to enforce this alignment in our linker script, otherwise pointers +to our TOC variables (__toc_start, __prom_init_toc_start) could +be incorrect. + +If they are bad, we die a few hundred instructions into boot. + +Upstream-Status: Backport + +Backport from https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e95235 + +Signed-off-by: Zhenhua Luo +--- + arch/powerpc/kernel/vmlinux.lds.S | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S +index f096e72..3266864 100644 +--- a/arch/powerpc/kernel/vmlinux.lds.S ++++ b/arch/powerpc/kernel/vmlinux.lds.S +@@ -213,6 +213,8 @@ SECTIONS + *(.opd) + } + ++ . = ALIGN(256); ++ + .got : AT(ADDR(.got) - LOAD_OFFSET) { + __toc_start = .; + #ifndef CONFIG_RELOCATABLE +-- +2.3.3 + diff --git a/recipes-kernel/linux/linux-qoriq_3.12.bb b/recipes-kernel/linux/linux-qoriq_3.12.bb index 3e0ab95..118c69b 100644 --- a/recipes-kernel/linux/linux-qoriq_3.12.bb +++ b/recipes-kernel/linux/linux-qoriq_3.12.bb @@ -3,5 +3,6 @@ require recipes-kernel/linux/linux-qoriq.inc SRC_URI = "git://git.freescale.com/ppc/sdk/linux.git;nobranch=1 \ file://modify-defconfig-t1040-nr-cpus.patch \ file://net-sctp-CVE-2014-0101.patch \ + file://0001-powerpc-Align-TOC-to-256-bytes.patch \ " SRCREV = "f488de6741d5ba805b9fe813d2ddf32368d3a888" -- cgit v1.2.3-54-g00ecf