From f8850abb7ba68229838014b3409460e576751c6d Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 9 Oct 2016 11:12:34 +0200 Subject: [PATCH] parisc: Fix kernel memory layout regarding position of __gp Architecturally we need to keep __gp below 0x1000000. But because of ftrace and tracepoint support, the RO_DATA_SECTION now gets much bigger than it was before. By moving the linkage tables before RO_DATA_SECTION we can avoid that __gp gets positioned at a too high address. Cc: stable@vger.kernel.org # 4.4+ Signed-off-by: Helge Deller --- arch/parisc/kernel/vmlinux.lds.S | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index b37787dbe775..9a44e92b65e2 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -90,8 +90,9 @@ SECTIONS /* Start of data section */ _sdata = .; - RO_DATA_SECTION(8) - + /* Architecturally we need to keep __gp below 0x1000000 and thus + * in front of RO_DATA_SECTION() which stores lots of tracepoint + * and ftrace symbols. */ #ifdef CONFIG_64BIT . = ALIGN(16); /* Linkage tables */ @@ -106,6 +107,8 @@ SECTIONS } #endif + RO_DATA_SECTION(8) + /* unwind info */ .PARISC.unwind : { __start___unwind = .;