From: Mark Shinwell <shinwell@codesourcery.com>
Date: Mon, 4 Sep 2006 07:11:11 +0000 (+0000)
Subject: 	bfd/
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2cab6cc30d591797c9343b1f4f95ae9989472cad;p=binutils-gdb.git

	bfd/
        * elf32-arm.c (elf32_arm_howto_table_1): Adjust entries for
        R_ARM_THM_ALU_PREL_11_0 and R_ARM_THM_PC12 relocations.
        (elf32_arm_final_link_relocate): Handle R_ARM_THM_ALU_PREL_11_0
        and R_ARM_THM_PC12 relocations.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index e032bb60c2f..fc7eca1ac14 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2006-09-04  Mark Shinwell  <shinwell@codesourcery.com>
+
+        * elf32-arm.c (elf32_arm_howto_table_1): Adjust entries for
+        R_ARM_THM_ALU_PREL_11_0 and R_ARM_THM_PC12 relocations.
+        (elf32_arm_final_link_relocate): Handle R_ARM_THM_ALU_PREL_11_0
+        and R_ARM_THM_PC12 relocations.
+
 2006-08-24  Bob Wilson  <bob.wilson@acm.org>
 
 	* elf32-xtensa.c (xtensa_get_property_section_name): Delete.
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index 163114996b0..530ef998734 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -835,12 +835,12 @@ static reloc_howto_type elf32_arm_howto_table_1[] =
 	 13,			/* bitsize */
 	 TRUE,			/* pc_relative */
 	 0,			/* bitpos */
-	 complain_overflow_signed,/* complain_on_overflow */
+	 complain_overflow_dont,/* complain_on_overflow */
 	 bfd_elf_generic_reloc,	/* special_function */
 	 "R_ARM_THM_ALU_PREL_11_0",/* name */
 	 FALSE,			/* partial_inplace */
-	 0x040070ff,		/* src_mask */
-	 0x040070ff,		/* dst_mask */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
 	 TRUE),			/* pcrel_offset */
 
   HOWTO (R_ARM_THM_PC12,	/* type */
@@ -849,12 +849,12 @@ static reloc_howto_type elf32_arm_howto_table_1[] =
 	 13,			/* bitsize */
 	 TRUE,			/* pc_relative */
 	 0,			/* bitpos */
-	 complain_overflow_signed,/* complain_on_overflow */
+	 complain_overflow_dont,/* complain_on_overflow */
 	 bfd_elf_generic_reloc,	/* special_function */
 	 "R_ARM_THM_PC12",	/* name */
 	 FALSE,			/* partial_inplace */
-	 0x040070ff,		/* src_mask */
-	 0x040070ff,		/* dst_mask */
+	 0xffffffff,		/* src_mask */
+	 0xffffffff,		/* dst_mask */
 	 TRUE),			/* pcrel_offset */
 
   HOWTO (R_ARM_ABS32_NOI,	/* type */
@@ -3945,6 +3945,81 @@ elf32_arm_final_link_relocate (reloc_howto_type *           howto,
       bfd_put_16 (input_bfd, value, hit_data);
       return bfd_reloc_ok;
 
+    case R_ARM_THM_ALU_PREL_11_0:
+      /* Corresponds to: addw.w reg, pc, #offset (and similarly for subw).  */
+      {
+	bfd_vma insn;
+	bfd_signed_vma relocation;
+
+	insn = (bfd_get_16 (input_bfd, hit_data) << 16)
+             | bfd_get_16 (input_bfd, hit_data + 2);
+
+        if (globals->use_rel)
+          {
+            signed_addend = (insn & 0xff) | ((insn & 0x7000) >> 4)
+                          | ((insn & (1 << 26)) >> 15);
+            if (insn & 0xf00000)
+              signed_addend = -signed_addend;
+          }
+
+	relocation = value + signed_addend;
+	relocation -= (input_section->output_section->vma
+		       + input_section->output_offset
+		       + rel->r_offset);
+
+        value = abs (relocation);
+
+        if (value >= 0x1000)
+          return bfd_reloc_overflow;
+
+	insn = (insn & 0xfb0f8f00) | (value & 0xff)
+             | ((value & 0x700) << 4)
+             | ((value & 0x800) << 15);
+        if (relocation < 0)
+          insn |= 0xa00000;
+
+	bfd_put_16 (input_bfd, insn >> 16, hit_data);
+	bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2);
+
+        return bfd_reloc_ok;
+      }
+
+    case R_ARM_THM_PC12:
+      /* Corresponds to: ldr.w reg, [pc, #offset].  */
+      {
+	bfd_vma insn;
+	bfd_signed_vma relocation;
+
+	insn = (bfd_get_16 (input_bfd, hit_data) << 16)
+             | bfd_get_16 (input_bfd, hit_data + 2);
+
+        if (globals->use_rel)
+          {
+            signed_addend = insn & 0xfff;
+            if (!(insn & (1 << 23)))
+              signed_addend = -signed_addend;
+          }
+
+	relocation = value + signed_addend;
+	relocation -= (input_section->output_section->vma
+		       + input_section->output_offset
+		       + rel->r_offset);
+
+        value = abs (relocation);
+
+        if (value >= 0x1000)
+          return bfd_reloc_overflow;
+
+	insn = (insn & 0xff7ff000) | value;
+        if (relocation >= 0)
+          insn |= (1 << 23);
+
+	bfd_put_16 (input_bfd, insn >> 16, hit_data);
+	bfd_put_16 (input_bfd, insn & 0xffff, hit_data + 2);
+
+        return bfd_reloc_ok;
+      }
+
     case R_ARM_THM_XPC22:
     case R_ARM_THM_CALL:
       /* Thumb BL (branch long instruction).  */