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| author | Nick Clifton <nickc@redhat.com> | 2009-07-01 14:48:26 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2009-07-01 14:48:26 +0000 |
| commit | e1ec24c6f31afae5a5175abecdcd9fd4d7893c4b (patch) | |
| tree | 63742c08326e838626e7b31a0db760fcecb6e997 /bfd | |
| parent | 921e5f0a315d8bded89c0d6e41ab467b8887a418 (diff) | |
| download | gdb-e1ec24c6f31afae5a5175abecdcd9fd4d7893c4b.zip gdb-e1ec24c6f31afae5a5175abecdcd9fd4d7893c4b.tar.gz gdb-e1ec24c6f31afae5a5175abecdcd9fd4d7893c4b.tar.bz2 | |
PR 10072
* elf32-arm.c (elf32_arm_final_link_relocate): Add code to handle
to R_ARM_THM_PC8 relocation.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elf32-arm.c | 34 |
2 files changed, 40 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 6b00d40..aca27d5 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2009-07-01 Nick Clifton <nickc@redhat.com> + + PR 10072 + * elf32-arm.c (elf32_arm_final_link_relocate): Add code to handle + to R_ARM_THM_PC8 relocation. + 2009-06-29 Nick Clifton <nickc@redhat.com> * elf-m10300.c (mn10300_elf_relax_section): Allow for the diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index cd40eef..2d53304 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -7178,6 +7178,40 @@ elf32_arm_final_link_relocate (reloc_howto_type * howto, return bfd_reloc_ok; } + case R_ARM_THM_PC8: + /* PR 10073: This reloc is not generated by the GNU toolchain, + but it is supported for compatibility with third party libraries + generated by other compilers, specifically the ARM/IAR. */ + { + bfd_vma insn; + bfd_signed_vma relocation; + + insn = bfd_get_16 (input_bfd, hit_data); + + if (globals->use_rel) + addend = (insn & 0x00ff) << 2; + + relocation = value + addend; + relocation -= (input_section->output_section->vma + + input_section->output_offset + + rel->r_offset); + + value = abs (relocation); + + /* We do not check for overflow of this reloc. Although strictly + speaking this is incorrect, it appears to be necessary in order + to work with IAR generated relocs. Since GCC and GAS do not + generate R_ARM_THM_PC8 relocs, the lack of a check should not be + a problem for them. */ + value &= 0x3fc; + + insn = (insn & 0xff00) | (value >> 2); + + bfd_put_16 (input_bfd, insn, hit_data); + + return bfd_reloc_ok; + } + case R_ARM_THM_PC12: /* Corresponds to: ldr.w reg, [pc, #offset]. */ { |