From 20aae3c4388ac33af54bbe25328c5fe817c0bd5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Galder=20Zamarren=CC=83o?= <galder@openjdk.org>
Date: Tue, 28 Nov 2023 08:33:23 +0000
Subject: [PATCH] 8320533: Adjust capstone integration for v6 changes

Reviewed-by: ihse, aph
---
 make/Hsdis.gmk                            |  2 +-
 make/autoconf/lib-hsdis.m4                | 14 ++++++++++++++
 make/autoconf/spec.gmk.in                 |  1 +
 src/utils/hsdis/capstone/hsdis-capstone.c |  8 +++++++-
 4 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/make/Hsdis.gmk b/make/Hsdis.gmk
index ec06a89aaab..bcf01dbe152 100644
--- a/make/Hsdis.gmk
+++ b/make/Hsdis.gmk
@@ -47,7 +47,7 @@ ifeq ($(HSDIS_BACKEND), capstone)
     CAPSTONE_ARCH := CS_ARCH_X86
     CAPSTONE_MODE := CS_MODE_$(OPENJDK_TARGET_CPU_BITS)
   else ifeq ($(call isTargetCpuArch, aarch64), true)
-    CAPSTONE_ARCH := CS_ARCH_ARM64
+    CAPSTONE_ARCH := CS_ARCH_$(CAPSTONE_ARCH_AARCH64_NAME)
     CAPSTONE_MODE := CS_MODE_ARM
   else
     $(error No support for Capstone on this platform)
diff --git a/make/autoconf/lib-hsdis.m4 b/make/autoconf/lib-hsdis.m4
index c020bf45054..33d8a35f8fd 100644
--- a/make/autoconf/lib-hsdis.m4
+++ b/make/autoconf/lib-hsdis.m4
@@ -63,6 +63,19 @@ AC_DEFUN([LIB_SETUP_HSDIS_CAPSTONE],
       AC_MSG_ERROR([Cannot continue])
     fi
   fi
+
+  capstone_header="\"$CAPSTONE/include/capstone/capstone.h\""
+  AC_MSG_CHECKING([capstone aarch64 arch name])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include $capstone_header],[[cs_arch test = CS_ARCH_AARCH64]])],
+    [
+      AC_MSG_RESULT([AARCH64])
+      CAPSTONE_ARCH_AARCH64_NAME="AARCH64"
+    ],
+    [
+      AC_MSG_RESULT([ARM64])
+      CAPSTONE_ARCH_AARCH64_NAME="ARM64"
+    ]
+  )
 ])
 
 ################################################################################
@@ -365,6 +378,7 @@ AC_DEFUN_ONCE([LIB_SETUP_HSDIS],
   AC_SUBST(HSDIS_CFLAGS)
   AC_SUBST(HSDIS_LDFLAGS)
   AC_SUBST(HSDIS_LIBS)
+  AC_SUBST(CAPSTONE_ARCH_AARCH64_NAME)
 
   AC_MSG_CHECKING([if hsdis should be bundled])
   if test "x$ENABLE_HSDIS_BUNDLING" = "xtrue"; then
diff --git a/make/autoconf/spec.gmk.in b/make/autoconf/spec.gmk.in
index 25f985bd45d..26b7d3ec958 100644
--- a/make/autoconf/spec.gmk.in
+++ b/make/autoconf/spec.gmk.in
@@ -377,6 +377,7 @@ ENABLE_HSDIS_BUNDLING := @ENABLE_HSDIS_BUNDLING@
 HSDIS_CFLAGS := @HSDIS_CFLAGS@
 HSDIS_LDFLAGS := @HSDIS_LDFLAGS@
 HSDIS_LIBS := @HSDIS_LIBS@
+CAPSTONE_ARCH_AARCH64_NAME := @CAPSTONE_ARCH_AARCH64_NAME@
 
 # The boot jdk to use. This is overridden in bootcycle-spec.gmk. Make sure to keep
 # it in sync.
diff --git a/src/utils/hsdis/capstone/hsdis-capstone.c b/src/utils/hsdis/capstone/hsdis-capstone.c
index ef65a01efca..410b88eb2db 100644
--- a/src/utils/hsdis/capstone/hsdis-capstone.c
+++ b/src/utils/hsdis/capstone/hsdis-capstone.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2022, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -52,6 +52,12 @@
 #include <inttypes.h>
 #include <string.h>
 
+/* Undefine macro to avoid generating invalid C code.
+   Capstone refactored cs_detail for AArch64 architecture
+   from `cs_arm64 arm64` to `cs_aarch64 aarch64`
+   and that causes invalid macro expansion.
+*/
+#undef aarch64
 #include <capstone.h>
 
 #include "hsdis.h"