[nasm:master] mib: Avoid RIP-relative addressing in mib

[nasm-bot f. J. K. S. <jin...@in...>]

Commit-ID:  97f6faec62979ef5db9c0f4b42e127f4f913115e
Gitweb:     http://repo.or.cz/w/nasm.git?a=commitdiff;h=97f6faec62979ef5db9c0f4b42e127f4f913115e
Author:     Jin Kyu Song <jin...@in...>
AuthorDate: Wed, 18 Dec 2013 21:28:17 -0800
Committer:  Jin Kyu Song <jin...@in...>
CommitDate: Wed, 18 Dec 2013 22:27:47 -0800

mib: Avoid RIP-relative addressing in mib

Using RIP relative for mib operands causes #UD exception.

Signed-off-by: Jin Kyu Song <jin...@in...>


---
 assemble.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/assemble.c b/assemble.c
index 4ff9e25..9184800 100644
--- a/assemble.c
+++ b/assemble.c
@@ -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))) {