2 files changed, 27 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
index 32fc47c3f3..a7b0a18108 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
@@ -129,6 +129,10 @@ L(noparms):
      the cpu link stack used to predict blr return addresses.  */
   bcl	20,31,L(gotexitcodeaddr);
 
+  /* End FDE now, because while executing on the context's stack
+     the unwind info would be wrong otherwise.  */
+  cfi_endproc
+
 	/* This is the helper code which gets called if a function which
 	   is registered with 'makecontext' returns.  In this case we
 	   have to install the context listed in the uc_link element of
@@ -157,6 +161,11 @@ L(do_exit):
 #endif
 	b    L(do_exit)
 
+  /* Re-establish FDE for the rest of the actual makecontext routine.  */
+  cfi_startproc
+  cfi_offset (lr, FRAME_LR_SAVE)
+  cfi_adjust_cfa_offset (128)
+
   /* The address of the exit code is in the link register.  Store the lr
      in the ucontext as LNK so the target function will return to our
      exit code.  */
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
index e1f0b8624c..5ec19ba561 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
@@ -129,6 +129,10 @@ ENTRY(__novec_setcontext)
   lfd  fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
   lfd  fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
 
+  /* End FDE now, because the unwind info would be wrong while
+     we're reloading registers to switch to the new context.  */
+  cfi_endproc
+
   ld   r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
   ld   r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
   mtlr r0
@@ -177,6 +181,11 @@ ENTRY(__novec_setcontext)
   ld   r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
   bctr
 
+  /* Re-establish FDE for the rest of the actual setcontext routine.  */
+  cfi_startproc
+  cfi_offset (lr, FRAME_LR_SAVE)
+  cfi_adjust_cfa_offset (128)
+
 L(nv_error_exit):
   ld   r0,128+FRAME_LR_SAVE(r1)
   addi r1,r1,128
@@ -403,6 +412,10 @@ L(has_no_vec):
   lfd  fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
   lfd  fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
 
+  /* End FDE now, because the unwind info would be wrong while
+     we're reloading registers to switch to the new context.  */
+  cfi_endproc
+
   ld   r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
   ld   r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
   mtlr r0
@@ -451,6 +464,11 @@ L(has_no_vec):
   ld   r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
   bctr
 
+  /* Re-establish FDE for the rest of the actual setcontext routine.  */
+  cfi_startproc
+  cfi_offset (lr, FRAME_LR_SAVE)
+  cfi_adjust_cfa_offset (128)
+
 L(error_exit):
   ld   r0,128+FRAME_LR_SAVE(r1)
   addi r1,r1,128