[PATCH] openrisc: Add _text symbol to fix ksym build error

[Stafford Horne]

The build report reports:

   .tmp_kallsyms1.o: In function `kallsyms_relative_base':
>> (.rodata+0x8a18): undefined reference to `_text'

This is when using 'make alldefconfig'. Adding this _text symbol to mark
the start of the kernel as in other architecture fixes this.

Signed-off-by: Stafford Horne <shorne@xxxxxxxxx>
---
 arch/openrisc/kernel/vmlinux.lds.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/openrisc/kernel/vmlinux.lds.S b/arch/openrisc/kernel/vmlinux.lds.S
index ef31fc2..58eaca0 100644
--- a/arch/openrisc/kernel/vmlinux.lds.S
+++ b/arch/openrisc/kernel/vmlinux.lds.S
@@ -44,6 +44,8 @@ SECTIONS
         /* Read-only sections, merged into text segment: */
         . = LOAD_BASE ;
 
+	_text = .;
+
 	/* _s_kernel_ro must be page aligned */
 	. = ALIGN(PAGE_SIZE);
 	_s_kernel_ro = .;
@@ -66,6 +68,7 @@ SECTIONS
 	 * fixup is definitely necessary
 	 */
 
+	_data = .;
 	_sdata = .;
 
 	/* Page alignment required for RO_DATA_SECTION */
-- 
2.7.4