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File 0005-S-390-z13-use-GNU-attribute-to-indicate-vector-ABI.patch of Package gdb (Revision 8f8f8e7410959f7aba2a6d2449e16bb6)

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bnc#936050
Changed for gdb by removing hunks applying to non-included files.

From d77ae458893b48e4e4ad5aa74a94023dff4ec4e1 Mon Sep 17 00:00:00 2001
From: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Date: Mon, 27 Apr 2015 10:32:23 +0200
Subject: [PATCH 5/5] S/390: z13 use GNU attribute to indicate vector ABI

bfd/
	* elf-s390-common.c (elf_s390_merge_obj_attributes): New function.
	* elf32-s390.c (elf32_s390_merge_private_bfd_data): Call
	elf_s390_merge_obj_attributes.
	* elf64-s390.c (elf64_s390_merge_private_bfd_data): New function.

include/elf/
	* s390.h: Define Tag_GNU_S390_ABI_Vector.

# Conflicts:
#	bfd/ChangeLog
#	binutils/ChangeLog
#	gas/testsuite/ChangeLog
#	include/elf/ChangeLog

# Conflicts:
#	bfd/elf-s390-common.c
---
 bfd/elf-s390-common.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++
 bfd/elf32-s390.c      |  9 ++++++++
 bfd/elf64-s390.c      | 18 +++++++++++++++-
 include/elf/s390.h    | 15 +++++++++++--
 6 files changed, 159 insertions(+), 3 deletions(-)

Index: gdb-7.9.1/bfd/elf-s390-common.c
===================================================================
--- gdb-7.9.1.orig/bfd/elf-s390-common.c	2015-08-14 15:49:23.000000000 +0200
+++ gdb-7.9.1/bfd/elf-s390-common.c	2015-08-14 15:50:35.000000000 +0200
@@ -242,3 +242,61 @@ elf_s390_add_symbol_hook (bfd *abfd,
 
   return TRUE;
 }
+
+/* Merge object attributes from IBFD into OBFD.  Raise an error if
+   there are conflicting attributes.  */
+static bfd_boolean
+elf_s390_merge_obj_attributes (bfd *ibfd, bfd *obfd)
+{
+  obj_attribute *in_attr, *in_attrs;
+  obj_attribute *out_attr, *out_attrs;
+
+  if (!elf_known_obj_attributes_proc (obfd)[0].i)
+    {
+      /* This is the first object.  Copy the attributes.  */
+      _bfd_elf_copy_obj_attributes (ibfd, obfd);
+
+      /* Use the Tag_null value to indicate the attributes have been
+	 initialized.  */
+      elf_known_obj_attributes_proc (obfd)[0].i = 1;
+
+      return TRUE;
+    }
+
+  in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
+  out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
+
+  /* Check for conflicting Tag_GNU_S390_ABI_Vector attributes and
+     merge non-conflicting ones.  */
+  in_attr = &in_attrs[Tag_GNU_S390_ABI_Vector];
+  out_attr = &out_attrs[Tag_GNU_S390_ABI_Vector];
+
+  if (in_attr->i > 2)
+    _bfd_error_handler
+      (_("Warning: %B uses unknown vector ABI %d"), ibfd,
+       in_attr->i);
+  else if (out_attr->i > 2)
+    _bfd_error_handler
+      (_("Warning: %B uses unknown vector ABI %d"), obfd,
+       out_attr->i);
+  else if (in_attr->i != out_attr->i)
+    {
+      out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
+
+      if (in_attr->i && out_attr->i)
+	{
+	  const char abi_str[3][9] = { "none", "software", "hardware" };
+
+	  _bfd_error_handler
+	    (_("Warning: %B uses vector %s ABI, %B uses %s ABI"),
+	     ibfd, obfd, abi_str[in_attr->i], abi_str[out_attr->i]);
+	}
+      if (in_attr->i > out_attr->i)
+	out_attr->i = in_attr->i;
+    }
+
+  /* Merge Tag_compatibility attributes and any common GNU ones.  */
+  _bfd_elf_merge_object_attributes (ibfd, obfd);
+
+  return TRUE;
+}
Index: gdb-7.9.1/bfd/elf32-s390.c
===================================================================
--- gdb-7.9.1.orig/bfd/elf32-s390.c	2015-08-14 15:49:23.000000000 +0200
+++ gdb-7.9.1/bfd/elf32-s390.c	2015-08-14 15:50:35.000000000 +0200
@@ -3980,9 +3980,18 @@ elf_s390_plt_sym_val (bfd_vma i, const a
   return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
 }
 
+/* Merge backend specific data from an object file to the output
+   object file when linking.  */
+
 static bfd_boolean
 elf32_s390_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
 {
+  if (!is_s390_elf (ibfd) || !is_s390_elf (obfd))
+    return TRUE;
+
+  if (!elf_s390_merge_obj_attributes (ibfd, obfd))
+    return FALSE;
+
   elf_elfheader (obfd)->e_flags |= elf_elfheader (ibfd)->e_flags;
   return TRUE;
 }
Index: gdb-7.9.1/bfd/elf64-s390.c
===================================================================
--- gdb-7.9.1.orig/bfd/elf64-s390.c	2015-08-14 15:49:23.000000000 +0200
+++ gdb-7.9.1/bfd/elf64-s390.c	2015-08-14 15:50:35.000000000 +0200
@@ -3766,6 +3766,21 @@ elf_s390_plt_sym_val (bfd_vma i, const a
   return plt->vma + PLT_FIRST_ENTRY_SIZE + i * PLT_ENTRY_SIZE;
 }
 
+/* Merge backend specific data from an object file to the output
+   object file when linking.  */
+
+static bfd_boolean
+elf64_s390_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
+{
+  if (!is_s390_elf (ibfd) || !is_s390_elf (obfd))
+    return TRUE;
+
+  if (!elf_s390_merge_obj_attributes (ibfd, obfd))
+    return FALSE;
+
+  return TRUE;
+}
+
 /* Why was the hash table entry size definition changed from
    ARCH_SIZE/8 to 4? This breaks the 64 bit dynamic linker and
    this is the only reason for the s390_elf64_size_info structure.  */
@@ -3824,7 +3839,8 @@ const struct elf_size_info s390_elf64_si
 #define bfd_elf64_bfd_is_local_label_name     elf_s390_is_local_label_name
 #define bfd_elf64_bfd_link_hash_table_create  elf_s390_link_hash_table_create
 #define bfd_elf64_bfd_reloc_type_lookup	      elf_s390_reloc_type_lookup
-#define bfd_elf64_bfd_reloc_name_lookup elf_s390_reloc_name_lookup
+#define bfd_elf64_bfd_reloc_name_lookup       elf_s390_reloc_name_lookup
+#define bfd_elf64_bfd_merge_private_bfd_data  elf64_s390_merge_private_bfd_data
 
 #define elf_backend_adjust_dynamic_symbol     elf_s390_adjust_dynamic_symbol
 #define elf_backend_check_relocs	      elf_s390_check_relocs
Index: gdb-7.9.1/include/elf/s390.h
===================================================================
--- gdb-7.9.1.orig/include/elf/s390.h	2015-08-14 15:49:23.000000000 +0200
+++ gdb-7.9.1/include/elf/s390.h	2015-08-14 15:50:35.000000000 +0200
@@ -129,6 +129,17 @@ START_RELOC_NUMBERS (elf_s390_reloc_type
     RELOC_NUMBER (R_390_GNU_VTENTRY, 251)
 END_RELOC_NUMBERS (R_390_max)
 
-#endif /* _ELF_390_H */
+/* Object attribute tags.  */
+enum
+{
+  /* 0-3 are generic. */
+  /* 4 is reserved for the FP ABI. */
 
+  /* Vector ABI:
+     0 = not affected by the vector ABI, or not tagged.
+     1 = software vector ABI being used
+     2 = hardware vector ABI being used.  */
+  Tag_GNU_S390_ABI_Vector = 8,
+};
 
+#endif /* _ELF_390_H */

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File 0005-S-390-z13-use-GNU-attribute-to-indicate-vector-ABI.patch of Package gdb (Revision 8f8f8e7410959f7aba2a6d2449e16bb6)

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