From fa9e095bbe9b624022ff77551e5998100bdc4b29 Mon Sep 17 00:00:00 2001
From: caiyinyu <caiyinyu@loongson.cn>
Date: Wed, 17 Aug 2022 08:17:39 +0800
Subject: LoongArch: Fix ptr mangling/demangling features.

---
 sysdeps/unix/sysv/linux/loongarch/sysdep.h | 33 +++++++++++++++---------------
 1 file changed, 16 insertions(+), 17 deletions(-)

(limited to 'sysdeps/unix/sysv')

diff --git a/sysdeps/unix/sysv/linux/loongarch/sysdep.h b/sysdeps/unix/sysv/linux/loongarch/sysdep.h
index 157cbd6c6b..f4a1d23a97 100644
--- a/sysdeps/unix/sysv/linux/loongarch/sysdep.h
+++ b/sysdeps/unix/sysv/linux/loongarch/sysdep.h
@@ -316,29 +316,28 @@ extern long int __syscall_error (long int neg_errno);
 
 /* Pointer mangling is supported for LoongArch.  */
 
-/* Load or store to/from a got-relative EXPR into/from G, using T.
+/* Load a got-relative EXPR into G, using T.
    Note G and T are register names.  */
-#define LDST_GLOBAL(OP, G, T,  EXPR) \
-  pcalau12i T, %got_pc_hi20(EXPR); \
-  OP	    T, T, %got_pc_lo12(EXPR); \
-  OP	    G, T, 0;
+#define LD_GLOBAL(G, EXPR) \
+  la.global G,	EXPR; \
+  REG_L	    G,	G,  0;
 
-/* Load or store to/from a pc-relative EXPR into/from G, using T.
+/* Load a pc-relative EXPR into G, using T.
    Note G and T are register names.  */
-#define LDST_PCREL(OP, G, T,  EXPR) \
-  pcalau12i T, %pc_hi20(EXPR); \
-  OP	    G, T, %pc_lo12(EXPR);
+#define LD_PCREL(G, EXPR) \
+  la.pcrel  G,	EXPR; \
+  REG_L	    G,	G,  0;
 
 #if (IS_IN (rtld) \
      || (!defined SHARED && (IS_IN (libc) \
      || IS_IN (libpthread))))
 
 #ifdef __ASSEMBLER__
-#define PTR_MANGLE(dst, src, guard, tmp) \
-  LDST_PCREL (REG_L, guard, tmp, __pointer_chk_guard_local); \
+#define PTR_MANGLE(dst, src, guard) \
+  LD_PCREL (guard, __pointer_chk_guard_local); \
   PTR_MANGLE2 (dst, src, guard);
-#define PTR_DEMANGLE(dst, src, guard, tmp) \
-  LDST_PCREL (REG_L, guard, tmp, __pointer_chk_guard_local); \
+#define PTR_DEMANGLE(dst, src, guard) \
+  LD_PCREL (guard, __pointer_chk_guard_local); \
   PTR_DEMANGLE2 (dst, src, guard);
 /* Use PTR_MANGLE2 for efficiency if guard is already loaded.  */
 #define PTR_MANGLE2(dst, src, guard) \
@@ -355,11 +354,11 @@ extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden;
 #else
 
 #ifdef __ASSEMBLER__
-#define PTR_MANGLE(dst, src, guard, tmp) \
-  LDST_GLOBAL (REG_L, guard, tmp, __pointer_chk_guard); \
+#define PTR_MANGLE(dst, src, guard) \
+  LD_GLOBAL (guard, __pointer_chk_guard); \
   PTR_MANGLE2 (dst, src, guard);
-#define PTR_DEMANGLE(dst, src, guard, tmp) \
-  LDST_GLOBAL (REG_L, guard, tmp, __pointer_chk_guard); \
+#define PTR_DEMANGLE(dst, src, guard) \
+  LD_GLOBAL (guard, __pointer_chk_guard); \
   PTR_DEMANGLE2 (dst, src, guard);
 /* Use PTR_MANGLE2 for efficiency if guard is already loaded.  */
 #define PTR_MANGLE2(dst, src, guard) \
-- 
cgit 1.4.1