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| author | Chung-Lin Tang <cltang@codesourcery.com> | 2011-12-13 06:22:01 +0000 |
|---|---|---|
| committer | Chung-Lin Tang <cltang@codesourcery.com> | 2011-12-13 06:22:01 +0000 |
| commit | 888b9c016b45d1f3d69a7cdbf1d03b8ad1bd5ba7 (patch) | |
| tree | aaad9799bfc8853280fc60018cae296da9aa169f /bfd | |
| parent | 2ece82445dd5d00bc07bfcecd0aac5f7716cb6e0 (diff) | |
| download | gdb-888b9c016b45d1f3d69a7cdbf1d03b8ad1bd5ba7.zip gdb-888b9c016b45d1f3d69a7cdbf1d03b8ad1bd5ba7.tar.gz gdb-888b9c016b45d1f3d69a7cdbf1d03b8ad1bd5ba7.tar.bz2 | |
2011-12-13 Chung-Lin Tang <cltang@codesourcery.com>
* elfxx-mips.c (mips_elf_calculate_relocation): Correct
R_MIPS16_HI16/R_MIPS16_LO16 handling of two cleared lower bits,
update comments.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elfxx-mips.c | 9 |
2 files changed, 11 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 3f1dc25..f6f8300 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2011-12-13 Chung-Lin Tang <cltang@codesourcery.com> + + * elfxx-mips.c (mips_elf_calculate_relocation): Correct + R_MIPS16_HI16/R_MIPS16_LO16 handling of two cleared lower bits, + update comments. + 2011-12-12 Iain Sandoe <iains@gcc.gnu.org> * mach-o.c (bfd_mach_o_read_section_32): Null-terminate sectname. diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index 4e6d9b2..f493517 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -5531,10 +5531,11 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd, 12: addu $v0,$v1 14: move $gp,$v0 So the offsets of hi and lo relocs are the same, but the - $pc is four higher than $t9 would be, so reduce - both reloc addends by 4. */ + base $pc is that used by the ADDIUPC instruction at $t9 + 4. + ADDIUPC clears the low two bits of the instruction address, + so the base is ($t9 + 4) & ~3. */ if (r_type == R_MIPS16_HI16) - value = mips_elf_high (addend + gp - p - 4); + value = mips_elf_high (addend + gp - ((p + 4) & ~(bfd_vma) 0x3)); /* The microMIPS .cpload sequence uses the same assembly instructions as the traditional psABI version, but the incoming $t9 has the low bit set. */ @@ -5557,7 +5558,7 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd, /* See the comment for R_MIPS16_HI16 above for the reason for this conditional. */ if (r_type == R_MIPS16_LO16) - value = addend + gp - p; + value = addend + gp - (p & ~(bfd_vma) 0x3); else if (r_type == R_MICROMIPS_LO16 || r_type == R_MICROMIPS_HI0_LO16) value = addend + gp - p + 3; |