[PATCH] powerpc: Don't blow away load_addr in start_thread

The patch to make process.c work for 32-bit and 64-bit
(06d67d54741a5bfefa31945ef195dfa748c29025) broke some 64-bit binaries.
We were blowing away load_addr in gpr[2], so we weren't properly relocating
the entry point.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 193c8c1bf132..047da1ae21fe 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -595,6 +595,10 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
  */
 void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 {
+#ifdef CONFIG_PPC64
+        unsigned long load_addr = regs->gpr[2]; /* saved by ELF_PLAT_INIT */
+#endif
+
         set_fs(USER_DS);
 
         /*
@@ -621,7 +625,7 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
         regs->msr = MSR_USER;
 #else
         if (!test_thread_flag(TIF_32BIT)) {
-                unsigned long entry, toc, load_addr = regs->gpr[2];
+                unsigned long entry, toc;
 
                 /* start is a relocated pointer to the function descriptor for
                  * the elf _start routine.  The first entry in the function