Add support for ARCv2 architecture

Signed-off-by: ARC QEMU developers <[email protected]>

Author: ARC QEMU developers

arch_init.c

@@ -91,6 +91,8 @@ int graphic_depth = 32;
 #define QEMU_ARCH QEMU_ARCH_UNICORE32
 #elif defined(TARGET_XTENSA)
 #define QEMU_ARCH QEMU_ARCH_XTENSA
+#elif defined(TARGET_ARC)
+#define QEMU_ARCH QEMU_ARCH_ARC
 #endif
 
 const uint32_t arch_type = QEMU_ARCH;

configure

@@ -7801,6 +7801,9 @@ case "$target_name" in
     mttcg="yes"
     TARGET_SYSTBL_ABI=common
   ;;
+  arc)
+    gdb_xml_files="arc-core-v2.xml arc-aux-minimal.xml arc-aux-other.xml"
+  ;;
   arm|armeb)
     TARGET_ARCH=arm
     TARGET_SYSTBL_ABI=common,oabi
@@ -8053,6 +8056,9 @@ for i in $ARCH $TARGET_BASE_ARCH ; do
       disas_config "ARM_A64"
     fi
   ;;
+  arc)
+    disas_config "ARC"
+  ;;
   arm)
     disas_config "ARM"
     if test -n "${cxx}"; then
@@ -8190,11 +8196,13 @@ fi
 # directory and symlink the directory instead.
 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
+DIRS="$DIRS tests/tcg/arc"
 DIRS="$DIRS docs docs/interop fsdev scsi"
 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
 DIRS="$DIRS roms/seabios roms/vgabios"
 LINKS="Makefile"
 LINKS="$LINKS tests/tcg/lm32/Makefile po/Makefile"
+LINKS="$LINKS tests/tcg/arc/Makefile"
 LINKS="$LINKS tests/tcg/Makefile.target tests/fp/Makefile"
 LINKS="$LINKS tests/plugin/Makefile"
 LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps"

default-configs/arc-softmmu.mak

@@ -0,0 +1,5 @@
+# Default configuration for arc-softmmu
+
+CONFIG_VIRTIO_MMIO=y
+CONFIG_SERIAL=y
+CONFIG_OPENCORES_ETH=y

disas.c

@@ -662,6 +662,8 @@ void disas(FILE *out, void *code, unsigned long size)
     print_insn = print_insn_s390;
 #elif defined(__hppa__)
     print_insn = print_insn_hppa;
+#elif defined(__arc__)
+    print_insn = print_insn_arc;
 #endif
 
     if (s.info.cap_arch >= 0 && cap_disas_host(&s.info, code, size)) {

disas/Makefile.objs

@@ -24,6 +24,7 @@ common-obj-$(CONFIG_SH4_DIS) += sh4.o
 common-obj-$(CONFIG_SPARC_DIS) += sparc.o
 common-obj-$(CONFIG_LM32_DIS) += lm32.o
 common-obj-$(CONFIG_XTENSA_DIS) += xtensa.o
+common-obj-$(CONFIG_ARC_DIS) += arc.o
 
 # TODO: As long as the TCG interpreter and its generated code depend
 # on the QEMU target, we cannot compile the disassembler here.