Add LoongArch TLSDESC and tunable support from upstream

Summary of test results:
   4654 PASS
     20 UNSUPPORTED
     16 XFAIL
      2 XPASS

debian/changelog

@@ -1,3 +1,9 @@
+glibc (2.38-6deepin7) unstable; urgency=medium
+
+  * Add LoongArch TLSDESC and tunable support from upstream.
+
+ -- Xing Li <[email protected]>  Tue, 26 Nov 2024 19:57:12 +0800
+
 glibc (2.38-6deepin6) unstable; urgency=medium
 
   * Unset -U_FILE_OFFSET_BITS -U_TIME_BITS to fix build.

debian/patches/loong64/0025-LoongArch-elf-Add-new-LoongArch-reloc-types-109-into.patch

@@ -0,0 +1,30 @@
+From c9e99fb9ccbbc69308c84d1c558be61e1fb7bee7 Mon Sep 17 00:00:00 2001
+From: Xing Li <[email protected]>
+Date: Tue, 26 Nov 2024 17:01:56 +0800
+Subject: [PATCH 01/23] LoongArch: elf: Add new LoongArch reloc types 109 into
+ elf.h
+
+These reloc types are generated by GNU assembler >= 2.41 for relaxation
+support.
+
+From: caiyinyu <[email protected]>
+Signed-off-by: Peng Fan <[email protected]>
+---
+ elf/elf.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/elf/elf.h b/elf/elf.h
+index d623bdeb..9c51073f 100644
+--- a/elf/elf.h
++++ b/elf/elf.h
+@@ -4213,6 +4213,7 @@ enum
+ #define R_LARCH_SUB6 106
+ #define R_LARCH_ADD_ULEB128 107
+ #define R_LARCH_SUB_ULEB128 108
++#define R_LARCH_64_PCREL 109
+
+ /* ARC specific declarations.  */
+
+-- 
+2.43.0
+