diff options
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 64 |
1 files changed, 29 insertions, 35 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 70622c2..07323c4 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -1,5 +1,5 @@ /* i386.c -- Assemble code for the Intel 80386 - Copyright (C) 1989, 1991, 1992, 1993 Free Software Foundation. + Copyright (C) 1989, 91, 92, 93, 94, 95, 1996 Free Software Foundation. This file is part of GAS, the GNU Assembler. @@ -14,8 +14,9 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with GAS; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + along with GAS; see the file COPYING. If not, write to the Free + Software Foundation, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ /* Intel 80386 machine specific gas. @@ -1154,8 +1155,8 @@ md_assemble (line) for (op = 0; op < MAX_OPERANDS; op++) if (i.types[op] & Reg) { - i.suffix = ((i.types[op] == Reg8) ? BYTE_OPCODE_SUFFIX : - (i.types[op] == Reg16) ? WORD_OPCODE_SUFFIX : + i.suffix = ((i.types[op] & Reg8) ? BYTE_OPCODE_SUFFIX : + (i.types[op] & Reg16) ? WORD_OPCODE_SUFFIX : DWORD_OPCODE_SUFFIX); } } @@ -1163,26 +1164,33 @@ md_assemble (line) && i.reg_operands != 0 && (i.types[i.operands - 1] & Reg) != 0) { - int want; + int bad; /* If the last operand is a register, make sure it is compatible with the suffix. */ + bad = 0; switch (i.suffix) { default: abort (); case BYTE_OPCODE_SUFFIX: - want = Reg8; + /* If this is an eight bit register, it's OK. If it's the + 16 or 32 bit version of an eight bit register, we will + just use the low portion, and that's OK too. */ + if ((i.types[i.operands - 1] & Reg8) == 0 + && i.regs[i.operands - 1]->reg_num >= 4) + bad = 1; break; case WORD_OPCODE_SUFFIX: - want = Reg16; - break; case DWORD_OPCODE_SUFFIX: - want = Reg32; - break; + /* We don't insist on the presence or absence of the e + prefix on the register, but we reject eight bit + registers. */ + if ((i.types[i.operands - 1] & Reg8) != 0) + bad = 1; } - if ((i.types[i.operands - 1] & want) == 0) + if (bad) as_bad ("register does not match opcode suffix"); } @@ -2595,16 +2603,6 @@ md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) } } -void /* Knows about order of bytes in address. */ -md_number_to_chars (con, value, nbytes) - char con[]; /* Return 'nbytes' of chars here. */ - valueT value; /* The value of the bits. */ - int nbytes; /* Number of bytes in the output. */ -{ - number_to_chars_littleendian (con, value, nbytes); -} - - /* Apply a fixup (fixS) to segment data, once it has been determined by our caller that we have all the info we need to fix it up. @@ -2956,15 +2954,11 @@ tc_gen_reloc (section, fixp) default: switch (F (fixp->fx_size, fixp->fx_pcrel)) { -#ifndef OBJ_ELF MAP (1, 0, BFD_RELOC_8); MAP (2, 0, BFD_RELOC_16); -#endif MAP (4, 0, BFD_RELOC_32); -#ifndef OBJ_ELF MAP (1, 1, BFD_RELOC_8_PCREL); MAP (2, 1, BFD_RELOC_16_PCREL); -#endif MAP (4, 1, BFD_RELOC_32_PCREL); default: as_bad ("Can not do %d byte %srelocation", fixp->fx_size, @@ -2980,7 +2974,8 @@ tc_gen_reloc (section, fixp) code = BFD_RELOC_386_GOTPC; rel = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent)); - assert (rel != 0); + if (rel == NULL) + as_fatal ("Out of memory"); rel->sym_ptr_ptr = &fixp->fx_addsy->bsym; rel->address = fixp->fx_frag->fr_address + fixp->fx_where; if (fixp->fx_pcrel) @@ -2989,15 +2984,14 @@ tc_gen_reloc (section, fixp) rel->addend = 0; rel->howto = bfd_reloc_type_lookup (stdoutput, code); - if (!rel->howto) + if (rel->howto == NULL) { - const char *name; - - name = S_GET_NAME (fixp->fx_addsy); - if (name == NULL) - name = "<unknown>"; - as_fatal ("Cannot generate relocation type for symbol %s, code %s", - name, bfd_get_reloc_code_name (code)); + as_bad_where (fixp->fx_file, fixp->fx_line, + "Cannot represent relocation type %s", + bfd_get_reloc_code_name (code)); + /* Set howto to a garbage value so that we can keep going. */ + rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); + assert (rel->howto != NULL); } return rel; |