[PATCH v3 2/9] powerpc/64e: fix CONFIG_RELOCATABLE build warnings

[Nicholas Piggin]

CONFIG_RELOCATABLE=y causes build warnings from unresolved relocations.
Fix these by using TOC addressing for these cases.

Commit 24d33ac5b8ff ("powerpc/64s: Make prom_init require RELOCATABLE")
caused some 64e configs to select RELOCATABLE resulting in these
warnings, but the underlying issue was already there.

This passes basic qemu testing.

Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
 arch/powerpc/kernel/exceptions-64e.S | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 22fcd95dd8dc..d634bfceed2c 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -912,8 +912,14 @@ kernel_dbg_exc:
 	b	interrupt_return
 
 .macro SEARCH_RESTART_TABLE
+#ifdef CONFIG_RELOCATABLE
+	ld	r11,PACATOC(r13)
+	ld	r14,__start___restart_table at got(r11)
+	ld	r15,__stop___restart_table at got(r11)
+#else
 	LOAD_REG_IMMEDIATE_SYM(r14, r11, __start___restart_table)
 	LOAD_REG_IMMEDIATE_SYM(r15, r11, __stop___restart_table)
+#endif
 300:
 	cmpd	r14,r15
 	beq	302f
@@ -1329,7 +1335,12 @@ a2_tlbinit_code_start:
 a2_tlbinit_after_linear_map:
 
 	/* Now we branch the new virtual address mapped by this entry */
+#ifdef CONFIG_RELOCATABLE
+	ld	r5,PACATOC(r13)
+	ld	r3,1f at got(r5)
+#else
 	LOAD_REG_IMMEDIATE_SYM(r3, r5, 1f)
+#endif
 	mtctr	r3
 	bctr
 
-- 
2.23.0