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[patch] New ARM relocations
- From: Paul Brook <paul at codesourcery dot com>
- To: binutils at sources dot redhat dot com
- Cc: Richard Earnshaw <rearnsha at arm dot com>
- Date: Tue, 30 Mar 2004 21:53:00 +0100
- Subject: [patch] New ARM relocations
- Organization: CodeSourcery
The patch below adds bfd support for some of the new relocations in the ARM
EABI.
Ok?
Paul
2004-03-30 Paul Brook <paul@codesourcery.com>
* elf32-arm.h (elf32_arm_final_link_relocate): Add R_ARM_ALU*.
* elfarm-nabi.c (elf32_arm_howto_table): Ditto.
Index: bfd/elf32-arm.h
===================================================================
RCS file: /cvs/src/src/bfd/elf32-arm.h,v
retrieving revision 1.125
diff -u -p -r1.125 elf32-arm.h
--- bfd/elf32-arm.h 27 Mar 2004 10:58:05 -0000 1.125
+++ bfd/elf32-arm.h 30 Mar 2004 20:44:27 -0000
@@ -1732,6 +1732,31 @@ elf32_arm_final_link_relocate (howto, in
return bfd_reloc_ok;
}
+ case R_ARM_ALU_PCREL7_0:
+ case R_ARM_ALU_PCREL15_8:
+ case R_ARM_ALU_PCREL23_15:
+ {
+ bfd_vma insn;
+ bfd_vma relocation;
+
+ insn = bfd_get_32 (input_bfd, hit_data);
+#if USE_REL
+ /* Extract the addend. */
+ addend = (insn & 0xff) << ((insn & 0xf00) >> 7);
+ signed_addend = addend;
+#endif
+ relocation = value + signed_addend;
+
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->r_offset);
+ insn = (insn & ~0xfff)
+ | ((howto->bitpos << 7) & 0xf00)
+ | ((relocation >> howto->bitpos) & 0xff);
+ bfd_put_32 (input_bfd, value, hit_data);
+ }
+ return bfd_reloc_ok;
+
case R_ARM_GNU_VTINHERIT:
case R_ARM_GNU_VTENTRY:
return bfd_reloc_ok;
Index: bfd/elfarm-nabi.c
===================================================================
RCS file: /cvs/src/src/bfd/elfarm-nabi.c,v
retrieving revision 1.17
diff -u -p -r1.17 elfarm-nabi.c
--- bfd/elfarm-nabi.c 30 Nov 2002 08:39:39 -0000 1.17
+++ bfd/elfarm-nabi.c 30 Mar 2004 20:44:28 -0000
@@ -516,6 +516,47 @@ static reloc_howto_type elf32_arm_howto_
0, /* dst_mask */
FALSE), /* pcrel_offset */
+ HOWTO (R_ARM_ALU_PCREL7_0, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_ARM_ALU_PCREL_7_0", /* name */
+ FALSE, /* partial_inplace */
+ 0x00000fff, /* src_mask */
+ 0x00000fff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_ARM_ALU_PCREL15_8, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ TRUE, /* pc_relative */
+ 8, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_ARM_ALU_PCREL_15_8",/* name */
+ FALSE, /* partial_inplace */
+ 0x00000fff, /* src_mask */
+ 0x00000fff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_ARM_ALU_PCREL23_15, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 12, /* bitsize */
+ TRUE, /* pc_relative */
+ 16, /* bitpos */
+ complain_overflow_dont,/* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ "R_ARM_ALU_PCREL_23_15",/* name */
+ FALSE, /* partial_inplace */
+ 0x00000fff, /* src_mask */
+ 0x00000fff, /* dst_mask */
+ TRUE), /* pcrel_offset */
};
/* GNU extension to record C++ vtable hierarchy */