From: Daniel Jacobowitz <drow@false.org>
Date: Wed, 22 Aug 2007 15:16:56 +0000 (+0000)
Subject: 	* mips-tdep.c (mips_gdbarch_init): Use Tag_GNU_MIPS_ABI_FP to
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=609ca2b95777ae176d12721010225ad7aad86321;p=binutils-gdb.git

	* mips-tdep.c (mips_gdbarch_init): Use Tag_GNU_MIPS_ABI_FP to
	determine the file's FPU type.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index cde1d095db8..f1edff4aaee 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2007-08-22  Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* mips-tdep.c (mips_gdbarch_init): Use Tag_GNU_MIPS_ABI_FP to
+	determine the file's FPU type.
+
 2007-08-22  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* mips-tdep.c (mips_n32n64_fp_arg_chunk_p): New.
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 68621e1c40b..654ef13abc3 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -4913,6 +4913,7 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   int i, num_regs;
   enum mips_fpu_type fpu_type;
   struct tdesc_arch_data *tdesc_data = NULL;
+  int elf_fpu_type = 0;
 
   /* Check any target description for validity.  */
   if (tdesc_has_registers (info.target_desc))
@@ -5120,8 +5121,32 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 			mips64_transfers_32bit_regs_p);
 
   /* Determine the MIPS FPU type.  */
+#ifdef HAVE_ELF
+  if (info.abfd
+      && bfd_get_flavour (info.abfd) == bfd_target_elf_flavour)
+    elf_fpu_type = bfd_elf_get_obj_attr_int (info.abfd, OBJ_ATTR_GNU,
+					     Tag_GNU_MIPS_ABI_FP);
+#endif /* HAVE_ELF */
+
   if (!mips_fpu_type_auto)
     fpu_type = mips_fpu_type;
+  else if (elf_fpu_type != 0)
+    {
+      switch (elf_fpu_type)
+	{
+	case 1:
+	  fpu_type = MIPS_FPU_DOUBLE;
+	  break;
+	case 2:
+	  fpu_type = MIPS_FPU_SINGLE;
+	  break;
+	case 3:
+	default:
+	  /* Soft float or unknown.  */
+	  fpu_type = MIPS_FPU_NONE;
+	  break;
+	}
+    }
   else if (info.bfd_arch_info != NULL
 	   && info.bfd_arch_info->arch == bfd_arch_mips)
     switch (info.bfd_arch_info->mach)