powerpc: modules implement R_PPC64_TOCSAVE relocation.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

2 files changed, 12 insertions, 1 deletions

diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h
index 7e39c9146a71..0341109e4395 100644
--- a/arch/powerpc/include/uapi/asm/elf.h
+++ b/arch/powerpc/include/uapi/asm/elf.h
@@ -291,9 +291,12 @@ do {									\
 #define R_PPC64_DTPREL16_HIGHERA 104 /* half16  (sym+add)@dtprel@highera */
 #define R_PPC64_DTPREL16_HIGHEST 105 /* half16  (sym+add)@dtprel@highest */
 #define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */
+#define R_PPC64_TLSGD           107
+#define R_PPC64_TLSLD           108
+#define R_PPC64_TOCSAVE         109
 
 /* Keep this the last entry.  */
-#define R_PPC64_NUM             107
+#define R_PPC64_NUM             110
 
 /* There's actually a third entry here, but it's unused */
 struct ppc64_opd_entry
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 7c16b2eefd95..a8694d462079 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -454,6 +454,14 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
                         *location = value - (unsigned long)location;
                         break;
 
+                case R_PPC64_TOCSAVE:
+                        /*
+                         * Marker reloc indicates we don't have to save r2.
+                         * That would only save us one instruction, so ignore
+                         * it.
+                         */
+                        break;
+
                 default:
                         printk("%s: Unknown ADD relocation: %lu\n",
                                me->name,