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(md_apply_fix3:BFD_RELOC_ARM_IMMEDIATE): Do not allow values which have come

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from undefined symbols.
Always consider this fixup to have been processed as a reloc cannot be
generated for it.
This commit is contained in:
Nick Clifton 2004-07-02 11:12:29 +00:00
parent 6a9cf61e0f
commit 310ea3086d
2 changed files with 21 additions and 1 deletions
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7
gas/ChangeLog
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@ -1,3 +1,10 @@
2004-07-02 Nick Clifton <nickc@redhat.com>
* config/tc-arm.c (md_apply_fix3:BFD_RELOC_ARM_IMMEDIATE): Do not
allow values which have come from undefined symbols.
Always consider this fixup to have been processed as a reloc
cannot be generated for it.
2004-07-02 Alan Modra <amodra@bigpond.net.au> 2004-07-02 Alan Modra <amodra@bigpond.net.au>
* frags.h (struct frag): Add has_code and insn_addr fields. * frags.h (struct frag): Add has_code and insn_addr fields.

15
gas/config/tc-arm.c
View file

@ -12186,6 +12186,20 @@ md_apply_fix3 (fixP, valP, seg)
switch (fixP->fx_r_type) switch (fixP->fx_r_type)
{ {
case BFD_RELOC_ARM_IMMEDIATE: case BFD_RELOC_ARM_IMMEDIATE:
/* We claim that this fixup has been processed here,
even if in fact we generate an error because we do
not have a reloc for it, so tc_gen_reloc will reject it. */
fixP->fx_done = 1;
if (fixP->fx_addsy
&& ! S_IS_DEFINED (fixP->fx_addsy))
{
as_bad_where (fixP->fx_file, fixP->fx_line,
_("undefined symbol %s used as an immediate value"),
S_GET_NAME (fixP->fx_addsy));
break;
}
newimm = validate_immediate (value); newimm = validate_immediate (value);
temp = md_chars_to_number (buf, INSN_SIZE); temp = md_chars_to_number (buf, INSN_SIZE);
@ -12202,7 +12216,6 @@ md_apply_fix3 (fixP, valP, seg)
newimm |= (temp & 0xfffff000); newimm |= (temp & 0xfffff000);
md_number_to_chars (buf, (valueT) newimm, INSN_SIZE); md_number_to_chars (buf, (valueT) newimm, INSN_SIZE);
fixP->fx_done = 1;
break; break;
case BFD_RELOC_ARM_ADRL_IMMEDIATE: case BFD_RELOC_ARM_ADRL_IMMEDIATE: