[PATCH 1/5] powerpc/64: place sfpr section explicitly with the linker script

[Nicholas Piggin]

Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
 arch/powerpc/kernel/vmlinux.lds.S | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/powerpc/kernel/vmlinux.lds.S 
b/arch/powerpc/kernel/vmlinux.lds.S
index 2f793be3d2b1..bcfda21c3179 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -115,6 +115,14 @@ SECTIONS
                KPROBES_TEXT
                IRQENTRY_TEXT
                SOFTIRQENTRY_TEXT
+               /*
+                * -Os builds call FP save/restore functions. The powerpc64
+                * linker generates those on demand in the .sfpr section.
+                * .sfpr gets placed at the beginning of a group of input
+                * sections, which can break start-of-text offset if it is
+                * included with the main text sections, so put it by itself.
+                */
+               *(.sfpr);
                MEM_KEEP(init.text)
                MEM_KEEP(exit.text)
 
-- 
2.11.0