1 files changed, 70 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/loongarch/readelflib.c b/sysdeps/unix/sysv/linux/loongarch/readelflib.c
new file mode 100644
index 0000000000..bcaff86b36
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/loongarch/readelflib.c
@@ -0,0 +1,70 @@
+/* Support for reading ELF files.
+   Copyright (C) 2022-2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+
+int process_elf64_file (const char *file_name, const char *lib,
+			int *flag, unsigned int *isa_level, char **soname,
+			void *file_contents, size_t file_length);
+
+#define SUPPORTED_ELF_FLAGS \
+  (EF_LARCH_ABI_DOUBLE_FLOAT | EF_LARCH_ABI_SOFT_FLOAT)
+
+/* Returns 0 if everything is ok, != 0 in case of error.  */
+int
+process_elf_file (const char *file_name, const char *lib, int *flag,
+		  unsigned int *isa_level, char **soname, void *file_contents,
+		  size_t file_length)
+{
+  ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
+  Elf64_Ehdr *elf64_header = (Elf64_Ehdr *) elf_header;
+  int ret;
+  long flags;
+
+  /* LoongArch libraries are always libc.so.6+.  */
+  *flag = FLAG_ELF_LIBC6;
+
+  ret = process_elf64_file (file_name, lib, flag, isa_level, soname,
+				file_contents, file_length);
+  flags = elf64_header->e_flags;
+
+  /* LoongArch linkers encode the floating point ABI as part of the ELF headers.  */
+  switch (flags & SUPPORTED_ELF_FLAGS)
+    {
+      case EF_LARCH_ABI_SOFT_FLOAT:
+        *flag |= FLAG_LARCH_FLOAT_ABI_SOFT;
+	break;
+      case EF_LARCH_ABI_DOUBLE_FLOAT:
+        *flag |= FLAG_LARCH_FLOAT_ABI_DOUBLE;
+	break;
+      default:
+        return 1;
+    }
+
+  /* If there are any other ELF flags set then glibc doesn't support this
+     library.  */
+  if (flags & ~SUPPORTED_ELF_FLAGS)
+    return 1;
+
+  return ret;
+}
+
+#undef __ELF_NATIVE_CLASS
+#undef process_elf_file
+#define process_elf_file process_elf64_file
+#define __ELF_NATIVE_CLASS 64
+#include "elf/readelflib.c"