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| author | Nick Clifton <nickc@redhat.com> | 2001-03-06 22:33:47 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2001-03-06 22:33:47 +0000 |
| commit | 4f3c3dbb370a8c0c8b66710c5d0c2854c1bab4f5 (patch) | |
| tree | 2042b5c453e962b76adfdd2eb4b67bd6899cfb55 /bfd/elf32-arm.h | |
| parent | f8f3c6cc3747d01156af27c7cc74a4628755f4d0 (diff) | |
| download | gdb-4f3c3dbb370a8c0c8b66710c5d0c2854c1bab4f5.zip gdb-4f3c3dbb370a8c0c8b66710c5d0c2854c1bab4f5.tar.gz gdb-4f3c3dbb370a8c0c8b66710c5d0c2854c1bab4f5.tar.bz2 | |
Fix BLX(1) for Thumb
Diffstat (limited to 'bfd/elf32-arm.h')
| -rw-r--r-- | bfd/elf32-arm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/bfd/elf32-arm.h b/bfd/elf32-arm.h index 6b56797..b64df9a 100644 --- a/bfd/elf32-arm.h +++ b/bfd/elf32-arm.h @@ -1434,6 +1434,17 @@ elf32_arm_final_link_relocate (howto, input_bfd, output_bfd, upper_insn = (upper_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 12) & 0x7ff); lower_insn = (lower_insn & ~(bfd_vma) 0x7ff) | ((relocation >> 1) & 0x7ff); + if (r_type == R_ARM_THM_XPC22 + && ((lower_insn & 0x1800) == 0x0800)) + /* Remove bit zero of the adjusted offset. Bit zero can only be + set if the upper insn is at a half-word boundary, since the + destination address, an ARM instruction, must always be on a + word boundary. The semantics of the BLX (1) instruction, however, + are that bit zero in the offset must always be zero, and the + corresponding bit one in the target address will be set from bit + one of the source address. */ + lower_insn &= ~1; + /* Put the relocated value back in the object file: */ bfd_put_16 (input_bfd, upper_insn, hit_data); bfd_put_16 (input_bfd, lower_insn, hit_data + 2); |