From: Jason Eckhardt <jle@rice.edu>
Date: Tue, 12 Sep 2000 14:34:59 +0000 (+0000)
Subject: 2000-09-12  Jason Eckhardt  <jle@cygnus.com>
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=c1e8b7101fa30aef561e0c55504963e92d425a8f;hp=2748f097fdfadb9c36536686a75e13372a913efe;p=deliverable%2Fbinutils-gdb.git

2000-09-12  Jason Eckhardt  <jle@cygnus.com>

	* elf32-i860.c (elf32_i860_relocate_pc26): New function
	and prototype.
	(elf32_i860_relocate_section): Invoke new function from here.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 6e331ac4c3..42f812fdf1 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2000-09-12  Jason Eckhardt  <jle@cygnus.com>
+
+	* elf32-i860.c (elf32_i860_relocate_pc26): New function
+	and prototype.
+	(elf32_i860_relocate_section): Invoke new function from here.
+
 2000-09-11  Michael Sokolov  <msokolov@ivan.Harhan.ORG>
 
 	* elf.c (_bfd_elf_make_section_from_shdr): Make debug_sec_names
diff --git a/bfd/elf32-i860.c b/bfd/elf32-i860.c
index 1acc4ddc8f..a0668da166 100644
--- a/bfd/elf32-i860.c
+++ b/bfd/elf32-i860.c
@@ -42,6 +42,9 @@ static bfd_reloc_status_type elf32_i860_relocate_splitn
 static bfd_reloc_status_type elf32_i860_relocate_pc16
   PARAMS ((bfd *,  asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
 
+static bfd_reloc_status_type elf32_i860_relocate_pc26
+  PARAMS ((bfd *,  asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
+
 static bfd_reloc_status_type elf32_i860_relocate_highadj
   PARAMS ((bfd *,  Elf_Internal_Rela *, bfd_byte *, bfd_vma));
 
@@ -763,6 +766,39 @@ elf32_i860_relocate_pc16 (input_bfd, input_section, rello, contents, value)
 }
 
 
+/* Specialized relocation handler for R_860_PC26.  This relocation
+   involves a 26-bit, PC-relative field which must be adjusted by 4.  */
+static bfd_reloc_status_type
+elf32_i860_relocate_pc26 (input_bfd, input_section, rello, contents, value)
+     bfd *input_bfd;
+     asection *input_section;
+     Elf_Internal_Rela *rello;
+     bfd_byte *contents;
+     bfd_vma value;
+{
+  bfd_vma insn;
+  reloc_howto_type *howto;
+  howto  = lookup_howto (ELF32_R_TYPE (rello->r_info));
+  insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
+
+  /* Adjust for PC-relative relocation.  */
+  value -= (input_section->output_section->vma
+	    + input_section->output_offset);
+  value -= rello->r_offset;
+
+  /* Relocate.  */
+  value += rello->r_addend;
+
+  /* Adjust value by 4 and insert the field.  */
+  value = ((value - 4) >> howto->rightshift) & howto->dst_mask; 
+  insn = (insn & ~howto->dst_mask) | value;
+
+  bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
+  return bfd_reloc_ok;
+
+}
+
+
 /* Specialized relocation handler for R_860_HIGHADJ.  */
 static bfd_reloc_status_type
 elf32_i860_relocate_highadj (input_bfd, rel, contents, value)
@@ -967,6 +1003,11 @@ elf32_i860_relocate_section (output_bfd, info, input_bfd, input_section,
 					contents, relocation);
 	  break;
 
+	case R_860_PC26:
+	  r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
+					contents, relocation);
+	  break;
+
 	case R_860_SPLIT0:
 	case R_860_SPLIT1:
 	case R_860_SPLIT2: