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 <deller@gmx.de>
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index b37787d..9a44e92 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -90,8 +90,9 @@
/* 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 @@
}
#endif
+ RO_DATA_SECTION(8)
+
/* unwind info */
.PARISC.unwind : {
__start___unwind = .;