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mib: Avoid RIP-relative addressing in mib

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Using RIP relative for mib operands causes #UD exception.

Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>
This commit is contained in:
Jin Kyu Song 2013-12-18 21:28:17 -08:00
parent 0b900cc7e1
commit 97f6faec62
1 changed files with 6 additions and 0 deletions
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6
assemble.c
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@ -2426,6 +2426,12 @@ static enum ea_type process_ea(operand *input, ea *output, int bits,
input->type |= MEMORY;
}
if (bits == 64 &&
!(IP_REL & ~input->type) && (eaflags & EAF_MIB)) {
nasm_error(ERR_NONFATAL, "RIP-relative addressing is prohibited for mib.");
return -1;
}
if (eaflags & EAF_BYTEOFFS ||
(eaflags & EAF_WORDOFFS &&
input->disp_size != (addrbits != 16 ? 32 : 16))) {