* elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Added code
that enables the linker to offset addresses, when linking against symbols from the XGATE processor and vice versa.
This commit is contained in:
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1634dcbe16
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082d11223c
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@ -1,3 +1,9 @@
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2012-07-24 Sean Keys <skeys@ipdatasys.com>
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* elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Added code
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that enables the linker to offset addresses, when linking against
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symbols from the XGATE processor and vice versa.
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2012-07-23 Nick Clifton <nickc@redhat.com>
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2012-07-23 Nick Clifton <nickc@redhat.com>
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* cisco-core.c (cisco_core_file_failing_command): Make static.
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* cisco-core.c (cisco_core_file_failing_command): Make static.
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@ -948,6 +948,8 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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bfd_vma insn_addr;
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bfd_vma insn_addr;
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bfd_vma insn_page;
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bfd_vma insn_page;
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bfd_boolean is_far = FALSE;
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bfd_boolean is_far = FALSE;
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bfd_boolean is_xgate_symbol = FALSE;
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bfd_boolean is_section_symbol = FALSE;
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struct elf_link_hash_entry *h;
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struct elf_link_hash_entry *h;
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bfd_vma val;
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bfd_vma val;
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@ -972,6 +974,8 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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+ sec->output_offset
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+ sec->output_offset
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+ sym->st_value);
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+ sym->st_value);
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is_far = (sym && (sym->st_other & STO_M68HC12_FAR));
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is_far = (sym && (sym->st_other & STO_M68HC12_FAR));
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is_xgate_symbol = (sym && (sym->st_target_internal));
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is_section_symbol = ELF_ST_TYPE (sym->st_info) & STT_SECTION;
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}
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}
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else
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else
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{
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{
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@ -983,6 +987,7 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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warned);
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warned);
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is_far = (h && (h->other & STO_M68HC12_FAR));
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is_far = (h && (h->other & STO_M68HC12_FAR));
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is_xgate_symbol = (h && (h->target_internal));
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}
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}
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if (sec != NULL && discarded_section (sec))
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if (sec != NULL && discarded_section (sec))
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@ -1122,6 +1127,39 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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insn_page = m68hc11_phys_page (pinfo, insn_addr);
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insn_page = m68hc11_phys_page (pinfo, insn_addr);
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/* If we are linking an S12 instruction against an XGATE symbol, we
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need to change the offset of the symbol value so that it's correct
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from the S12's perspective. */
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if (is_xgate_symbol)
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{
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/* The ram in the global space is mapped to 0x2000 in the 16-bit
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address space for S12 and 0xE000 in the 16-bit address space
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for XGATE. */
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if (relocation >= 0xE000)
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{
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/* We offset the address by the difference
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between these two mappings. */
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relocation -= 0xC000;
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break;
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}
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else
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{
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const char * msg;
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char * buf;
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msg = _("XGATE address (%lx) is not within shared RAM"
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"(0xE000-0xFFFF), therefore you must manually offset "
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"the address, and possibly manage the page, in your "
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"code.");
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buf = alloca (strlen (msg) + 128);
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sprintf (buf, msg, phys_addr);
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if (!((*info->callbacks->warning) (info, buf, name, input_bfd,
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input_section, insn_addr)))
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return FALSE;
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break;
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}
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}
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if (m68hc11_addr_is_banked (pinfo, relocation + rel->r_addend)
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if (m68hc11_addr_is_banked (pinfo, relocation + rel->r_addend)
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&& m68hc11_addr_is_banked (pinfo, insn_addr)
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&& m68hc11_addr_is_banked (pinfo, insn_addr)
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&& phys_page != insn_page)
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&& phys_page != insn_page)
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@ -1143,6 +1181,7 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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return FALSE;
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return FALSE;
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break;
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break;
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}
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}
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if (phys_page != 0 && insn_page == 0)
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if (phys_page != 0 && insn_page == 0)
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{
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{
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const char * msg;
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const char * msg;
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@ -1169,6 +1208,45 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
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break;
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break;
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}
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}
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/* If we are linking an XGATE instruction against an S12 symbol, we
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need to change the offset of the symbol value so that it's correct
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from the XGATE's perspective. */
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if (!strcmp (howto->name, "R_XGATE_IMM8_LO")
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|| !strcmp (howto->name, "R_XGATE_IMM8_HI"))
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{
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/* We can only offset S12 addresses that lie within the non-paged
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area of RAM. */
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if (!is_xgate_symbol && !is_section_symbol)
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{
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/* The ram in the global space is mapped to 0x2000 and stops at
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0x4000 in the 16-bit address space for S12 and 0xE000 in the
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16-bit address space for XGATE. */
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if (relocation >= 0x2000 && relocation < 0x4000)
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/* We offset the address by the difference
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between these two mappings. */
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relocation += 0xC000;
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else
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{
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const char * msg;
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char * buf;
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/* Get virtual address of instruction having the relocation. */
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insn_addr = input_section->output_section->vma
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+ input_section->output_offset + rel->r_offset;
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msg = _("S12 address (%lx) is not within shared RAM"
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"(0x2000-0x4000), therefore you must manually "
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"offset the address in your code");
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buf = alloca (strlen (msg) + 128);
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sprintf (buf, msg, phys_addr);
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if (!((*info->callbacks->warning) (info, buf, name, input_bfd,
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input_section, insn_addr)))
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return FALSE;
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break;
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}
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}
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}
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if (r_type != R_M68HC11_NONE)
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if (r_type != R_M68HC11_NONE)
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{
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{
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if ((r_type == R_M68HC12_PCREL_9) || (r_type == R_M68HC12_PCREL_10))
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if ((r_type == R_M68HC12_PCREL_9) || (r_type == R_M68HC12_PCREL_10))
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