From be89c18b9827a2cb4ea7807a69e253db075ec7e5 Mon Sep 17 00:00:00 2001
From: ketank-new <ketan22584@gmail.com>
Date: Thu, 10 Nov 2016 10:42:51 +0530
Subject: [PATCH] Update lj_arch.h

Added supporting lines for s390
Lines added using arm lines as reference
---
 src/lj_arch.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/lj_arch.h b/src/lj_arch.h
index cc5a0a66..5155bf69 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -29,6 +29,7 @@
 #define LUAJIT_ARCH_mips32	6
 #define LUAJIT_ARCH_MIPS64	7
 #define LUAJIT_ARCH_mips64	7
+#define LUAJIT_ARCH_S390	8
 
 /* Target OS. */
 #define LUAJIT_OS_OTHER		0
@@ -49,6 +50,8 @@
 #define LUAJIT_TARGET	LUAJIT_ARCH_ARM
 #elif defined(__aarch64__)
 #define LUAJIT_TARGET	LUAJIT_ARCH_ARM64
+#elif defined(__s390__) || defined(__s390) || defined(__S390__) || defined(__S390) || defined(S390)
+#define LUAJIT_TARGET	LUAJIT_ARCH_S390
 #elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
 #define LUAJIT_TARGET	LUAJIT_ARCH_PPC
 #elif defined(__mips64__) || defined(__mips64) || defined(__MIPS64__) || defined(__MIPS64)
@@ -230,6 +233,23 @@
 
 #define LJ_ARCH_VERSION		80
 
+#elif LUAJIT_TARGET == LUAJIT_ARCH_S390
+ 
+ #define LJ_ARCH_NAME		"s390"
+ #define LJ_ARCH_BITS		64
+ #define LJ_ARCH_ENDIAN		LUAJIT_BE
+ #if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
+ #define LJ_ARCH_HASFPU		1
+ #endif
+ #define LJ_ABI_EABI		1
+ #define LJ_TARGET_S390		1
+ #define LJ_TARGET_EHRETREG	       0
+ #define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+ #define LJ_TARGET_MASKSHIFT	0
+ #define LJ_TARGET_MASKROT	       1
+ #define LJ_TARGET_UNIFYROT	       2	/* Want only IR_BROR. */
+ #define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+ 
 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
 
 #ifndef LJ_ARCH_ENDIAN
@@ -379,6 +399,10 @@
 #if (__clang_major__ < 3) || ((__clang_major__ == 3) && __clang_minor__ < 5)
 #error "Need at least Clang 3.5 or newer"
 #endif
+#elif LJ_TARGET_S390
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
+#error "Need at least GCC 4.2 or newer"
+#endif
 #else
 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 8)
 #error "Need at least GCC 4.8 or newer"