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authorNicholas Piggin <npiggin@gmail.com>2017-05-12 01:56:48 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2017-05-30 14:59:51 +1000
commite8c688251d0e8baca1cd68992c9ef4078a0361c8 (patch)
treebf81006ea57bad07b27813ddaa68855e170e2b83 /arch
parent308d263d3f28e816b0d7425ef8b35d69643b7ee0 (diff)
powerpc/64: Place sfpr section explicitly with the linker script
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S8
1 files changed, 8 insertions, 0 deletions
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)