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Display warning for invalid RIP-relative addressing

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This commit is contained in:
Liam Bowen 2022-04-18 18:50:23 +00:00
parent 3f9fc2a3a7
commit f4e7a636a8
1 changed files with 11 additions and 0 deletions
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11
asm/assemble.c
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@ -2264,6 +2264,17 @@ static void gencode(struct out_data *data, insn *ins)
rfield, rflags, ins, eat, &errmsg))
nasm_nonfatal("%s", errmsg);
/* If RIP-relative, indexreg and scale must not be present:
* [basereg + indexreg*scale + displacement]
* https://bugzilla.nasm.us/show_bug.cgi?id=3392797
*/
if (bits == 64 && (opy->eaflags & EAF_REL) &&
((opy->indexreg != -1) || (opy->scale != -1))) {
nasm_warn(WARN_OTHER | ERR_PASS2,
"invalid addressing mode: RIP-relative address "
"cannot contain index register or scale");
}
p = bytes;
*p++ = ea_data.modrm;
if (ea_data.sib_present)