From 5a24fdd547f4c02fe46c37b84a020febfa41bfd2 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Sat, 25 Feb 2012 15:10:04 -0800
Subject: [PATCH] Make the LOCK and HLE warnings suppressable.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
 assemble.c      | 6 +++---
 doc/nasmdoc.src | 7 +++++++
 nasm.c          | 4 +++-
 nasmlib.h       | 4 +++-
 4 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/assemble.c b/assemble.c
index eba1b32d..bf5c103f 100644
--- a/assemble.c
+++ b/assemble.c
@@ -818,14 +818,14 @@ static void bad_hle_warn(const insn * ins, uint8_t hleok)
 
     case w_lock:
         if (ins->prefixes[PPS_LOCK] != P_LOCK) {
-            errfunc(ERR_WARNING | ERR_PASS2,
+            errfunc(ERR_WARNING | ERR_WARN_HLE | ERR_PASS2,
                     "%s with this instruction requires lock",
                     prefix_name(rep_pfx));
         }
         break;
 
     case w_inval:
-        errfunc(ERR_WARNING | ERR_PASS2,
+        errfunc(ERR_WARNING | ERR_WARN_HLE | ERR_PASS2,
                 "%s invalid with this instruction",
                 prefix_name(rep_pfx));
         break;
@@ -1254,7 +1254,7 @@ static int64_t calcsize(int32_t segment, int64_t offset, int bits,
 
     if (has_prefix(ins, PPS_LOCK, P_LOCK) && lockcheck &&
         (!(temp->flags & IF_LOCK) || !is_class(MEMORY, ins->oprs[0].type))) {
-        errfunc(ERR_WARNING | ERR_PASS2,
+        errfunc(ERR_WARNING | ERR_WARN_LOCK | ERR_PASS2 ,
                 "instruction is not lockable");
     }
 
diff --git a/doc/nasmdoc.src b/doc/nasmdoc.src
index 583ad523..217c12a8 100644
--- a/doc/nasmdoc.src
+++ b/doc/nasmdoc.src
@@ -948,6 +948,13 @@ Enabled by default.
 \b \i\c{user} controls \c{%warning} directives (see \k{pperror}).
 Enabled by default.
 
+\b \i\c{lock} warns about \c{LOCK} prefixes on unlockable instructions.
+Enabled by default.
+
+\b \i\c{hle} warns about invalid use of the HLE \c{XACQUIRE} or \c{XRELEASE}
+prefixes.
+Enabled by default.
+
 \b \i\c{error} causes warnings to be treated as errors.  Disabled by
 default.
 
diff --git a/nasm.c b/nasm.c
index cca6650f..5103fea5 100644
--- a/nasm.c
+++ b/nasm.c
@@ -1,6 +1,6 @@
 /* ----------------------------------------------------------------------- *
  *
- *   Copyright 1996-2011 The NASM Authors - All Rights Reserved
+ *   Copyright 1996-2012 The NASM Authors - All Rights Reserved
  *   See the file AUTHORS included with the NASM distribution for
  *   the specific copyright holders.
  *
@@ -161,6 +161,8 @@ static const struct warning {
     {"float-underflow", "floating point underflow", false},
     {"float-toolong", "too many digits in floating-point number", true},
     {"user", "%warning directives", true},
+    {"lock", "lock prefix on unlockable instructions", true},
+    {"hle", "invalid hle prefixes", true},
 };
 
 /*
diff --git a/nasmlib.h b/nasmlib.h
index 1aeaf0a0..2210748b 100644
--- a/nasmlib.h
+++ b/nasmlib.h
@@ -132,7 +132,9 @@ void nasm_set_verror(vefunc);
 #define ERR_WARN_FL_UNDERFLOW   WARN( 9) /* FP underflow */
 #define ERR_WARN_FL_TOOLONG     WARN(10) /* FP too many digits */
 #define ERR_WARN_USER           WARN(11) /* %warning directives */
-#define ERR_WARN_MAX            11       /* the highest numbered one */
+#define ERR_WARN_LOCK		WARN(12) /* bad LOCK prefixes */
+#define ERR_WARN_HLE		WARN(13) /* bad HLE prefixes */
+#define ERR_WARN_MAX            13       /* the highest numbered one */
 
 /*
  * Wrappers around malloc, realloc and free. nasm_malloc will
-- 
2.11.4.GIT