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| author | Nick Clifton <nickc@redhat.com> | 2002-05-23 12:37:57 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2002-05-23 12:37:57 +0000 |
| commit | c62e1cc30f77e49b15d48d4d32c7f6c1e6827163 (patch) | |
| tree | 7b9b45107783f709e9478e138286efc5c6682384 /gas | |
| parent | 6ff96af674ed8b5872e90def470405f90f8b4aac (diff) | |
| download | gdb-c62e1cc30f77e49b15d48d4d32c7f6c1e6827163.zip gdb-c62e1cc30f77e49b15d48d4d32c7f6c1e6827163.tar.gz gdb-c62e1cc30f77e49b15d48d4d32c7f6c1e6827163.tar.bz2 | |
For the Thumb BLX reloc round the relocation up rather than down.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-arm.c | 24 |
2 files changed, 16 insertions, 13 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 3970519..9d8b183 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,10 @@ 2002-05-23 Nick Clifton <nickc@cambridge.redhat.com> + * config/tc-arm.c (md_apply_fix3): For the Thumb BLX reloc + round the relocation up rather than down. + +2002-05-23 Nick Clifton <nickc@cambridge.redhat.com> + * config/obj-coff.c (obj_coff_section): Silently ignore an 'a' flag. * doc/as.texinfo: Document that the COFF version of .section diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index b76ee21..39f1b65 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -2227,7 +2227,7 @@ symbol_locate (symbolP, name, segment, valu, frag) S_SET_SEGMENT (symbolP, segment); S_SET_VALUE (symbolP, valu); - symbol_clear_list_pointers(symbolP); + symbol_clear_list_pointers (symbolP); symbol_set_frag (symbolP, frag); @@ -6963,7 +6963,7 @@ vfp_sp_reg_list (str, pos) /* Sanity check -- should have raised a parse error above. */ if (count == 0 || count > 32) - abort(); + abort (); /* Final test -- the registers must be consecutive. */ while (count--) @@ -7076,7 +7076,7 @@ vfp_dp_reg_list (str) /* Sanity check -- should have raised a parse error above. */ if (count == 0 || count > 16) - abort(); + abort (); /* Final test -- the registers must be consecutive. */ while (count--) @@ -7093,7 +7093,7 @@ vfp_dp_reg_list (str) } static void -vfp_sp_ldstm(str, ldstm_type) +vfp_sp_ldstm (str, ldstm_type) char *str; enum vfp_ldstm_type ldstm_type; { @@ -7130,7 +7130,7 @@ vfp_sp_ldstm(str, ldstm_type) } static void -vfp_dp_ldstm(str, ldstm_type) +vfp_dp_ldstm (str, ldstm_type) char *str; enum vfp_ldstm_type ldstm_type; { @@ -9939,6 +9939,7 @@ md_apply_fix3 (fixP, valP, seg) value = fixP->fx_offset; #endif value += diff; + if ((value & ~0x3fffff) && ((value & ~0x3fffff) != ~0x3fffff)) as_bad_where (fixP->fx_file, fixP->fx_line, _("branch with link out of range")); @@ -9946,14 +9947,11 @@ md_apply_fix3 (fixP, valP, seg) newval = (newval & 0xf800) | ((value & 0x7fffff) >> 12); newval2 = (newval2 & 0xf800) | ((value & 0xfff) >> 1); if (fixP->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX) - /* 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. */ - newval2 &= ~1; + /* For a BLX instruction, make sure that the relocation is rounded up + to a word boundary. This follows the semantics of the instruction + which specifies that bit 1 of the target address will come from bit + 1 of the base address. */ + newval2 = (newval2 + 1) & ~ 1; md_number_to_chars (buf, newval, THUMB_SIZE); md_number_to_chars (buf + THUMB_SIZE, newval2, THUMB_SIZE); } |