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| author | Dave Anglin <dave.anglin@nrc.ca> | 2009-01-25 23:05:20 +0000 |
|---|---|---|
| committer | Dave Anglin <dave.anglin@nrc.ca> | 2009-01-25 23:05:20 +0000 |
| commit | aeaf654094927f7ba0a6d8998095f3cb1d988cec (patch) | |
| tree | 8aa1c09e5aff71004bb7cda515bbeb8de582a226 /bfd/elf-hppa.h | |
| parent | 293f4bb59e1f21e853875ff1034defc12cb0fbf2 (diff) | |
| download | gdb-aeaf654094927f7ba0a6d8998095f3cb1d988cec.zip gdb-aeaf654094927f7ba0a6d8998095f3cb1d988cec.tar.gz gdb-aeaf654094927f7ba0a6d8998095f3cb1d988cec.tar.bz2 | |
* elf-hppa.h (elf_hppa_final_link_relocate): Add check to ensure that
branch targets can be reached for R_PARISC_PCREL22F, R_PARISC_PCREL17F
and R_PARISC_PCREL12F relocations.
Diffstat (limited to 'bfd/elf-hppa.h')
| -rw-r--r-- | bfd/elf-hppa.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/bfd/elf-hppa.h b/bfd/elf-hppa.h index 0aff4cc..b371c0e 100644 --- a/bfd/elf-hppa.h +++ b/bfd/elf-hppa.h @@ -1606,10 +1606,11 @@ elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, bfd_vma value, struct bfd_link_info *info, asection *sym_sec, - struct elf_link_hash_entry *h ATTRIBUTE_UNUSED, + struct elf_link_hash_entry *h, struct elf64_hppa_dyn_hash_entry *dyn_h) { int insn; + bfd_vma max_branch_offset = 0; bfd_vma offset = rel->r_offset; bfd_signed_vma addend = rel->r_addend; reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); @@ -1629,7 +1630,7 @@ elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, Note for a call to a function defined in another dynamic library we want to redirect the call to a stub. */ - /* Random PC relative relocs. */ + /* PC relative relocs without an implicit offset. */ case R_PARISC_PCREL21L: case R_PARISC_PCREL14R: case R_PARISC_PCREL14F: @@ -1684,6 +1685,27 @@ elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, value -= (offset + input_section->output_offset + input_section->output_section->vma); + if (r_type == (unsigned int) R_PARISC_PCREL22F) + max_branch_offset = (1 << (22-1)) << 2; + else if (r_type == (unsigned int) R_PARISC_PCREL17F) + max_branch_offset = (1 << (17-1)) << 2; + else if (r_type == (unsigned int) R_PARISC_PCREL12F) + max_branch_offset = (1 << (12-1)) << 2; + + /* Make sure we can reach the branch target. */ + if (max_branch_offset != 0 + && value + addend + max_branch_offset >= 2*max_branch_offset) + { + (*_bfd_error_handler) + (_("%B(%A+0x%lx): cannot reach %s"), + input_bfd, + input_section, + offset, + h->root.root.string); + bfd_set_error (bfd_error_bad_value); + return bfd_reloc_notsupported; + } + /* Adjust for any field selectors. */ if (r_type == R_PARISC_PCREL17R) value = hppa_field_adjust (value, -8 + addend, e_rsel); |