[PATCH] RISC-V: Enable static-pie.

[yanzhang.wang@intel.com]

From: Yanzhang Wang <yanzhang.wang@intel.com>

This patch referents the commit 374cef3 to add static-pie support. And
because the dummy link map is used when relocating ourselves, so need
not to set __global_pointer$ at this time.
---
 sysdeps/riscv/configure    | 2 ++
 sysdeps/riscv/configure.ac | 3 +++
 sysdeps/riscv/dl-machine.h | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/sysdeps/riscv/configure b/sysdeps/riscv/configure
index 2372225a26..340163779f 100644
--- a/sysdeps/riscv/configure
+++ b/sysdeps/riscv/configure
@@ -29,3 +29,5 @@ fi
 $as_echo "$libc_cv_riscv_r_align" >&6; }
 config_vars="$config_vars
 riscv-r-align = $libc_cv_riscv_r_align"
+
+$as_echo "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
diff --git a/sysdeps/riscv/configure.ac b/sysdeps/riscv/configure.ac
index dbcc216689..36da2b5396 100644
--- a/sysdeps/riscv/configure.ac
+++ b/sysdeps/riscv/configure.ac
@@ -16,3 +16,6 @@ EOF
   fi
   rm -rf conftest.*])
 LIBC_CONFIG_VAR([riscv-r-align], [$libc_cv_riscv_r_align])
+
+dnl Static PIE is supported.
+AC_DEFINE(SUPPORT_STATIC_PIE)
diff --git a/sysdeps/riscv/dl-machine.h b/sysdeps/riscv/dl-machine.h
index c0c9bd93ad..ad875c0828 100644
--- a/sysdeps/riscv/dl-machine.h
+++ b/sysdeps/riscv/dl-machine.h
@@ -323,7 +323,7 @@ elf_machine_runtime_setup (struct link_map *l, struct r_scope_elem *scope[],
       gotplt[1] = (ElfW(Addr)) l;
     }
 
-  if (l->l_type == lt_executable)
+  if (l->l_type == lt_executable && l->l_scope != NULL)
     {
       /* The __global_pointer$ may not be defined by the linker if the
 	 $gp register does not be used to access the global variable
-- 
2.41.0