configure: move disassembler configuration to meson

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

.gitignore

@@ -2,7 +2,6 @@
 /build/
 /.doctrees
 /config-devices.*
-/config-all-disas.*
 /config-host.*
 /config-target.*
 /config.status

configure

@@ -6612,8 +6612,6 @@ QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
 
 config_host_mak="config-host.mak"
 
-echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
-
 echo "# Automatically generated by configure - do not modify" > $config_host_mak
 echo >> $config_host_mak
 
@@ -7919,93 +7917,6 @@ if test "$target_bsd_user" = "yes" ; then
   echo "CONFIG_BSD_USER=y" >> $config_target_mak
 fi
 
-
-# generate QEMU_CFLAGS/QEMU_LDFLAGS for targets
-
-disas_config() {
-  echo "CONFIG_${1}_DIS=y" >> $config_target_mak
-  echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
-}
-
-for i in $ARCH $TARGET_BASE_ARCH ; do
-  case "$i" in
-  alpha)
-    disas_config "ALPHA"
-  ;;
-  aarch64)
-    if test -n "${cxx}"; then
-      disas_config "ARM_A64"
-    fi
-  ;;
-  arm)
-    disas_config "ARM"
-    if test -n "${cxx}"; then
-      disas_config "ARM_A64"
-    fi
-  ;;
-  avr)
-    disas_config "AVR"
-  ;;
-  cris)
-    disas_config "CRIS"
-  ;;
-  hppa)
-    disas_config "HPPA"
-  ;;
-  i386|x86_64|x32)
-    disas_config "I386"
-  ;;
-  lm32)
-    disas_config "LM32"
-  ;;
-  m68k)
-    disas_config "M68K"
-  ;;
-  microblaze*)
-    disas_config "MICROBLAZE"
-  ;;
-  mips*)
-    disas_config "MIPS"
-    if test -n "${cxx}"; then
-      disas_config "NANOMIPS"
-    fi
-  ;;
-  moxie*)
-    disas_config "MOXIE"
-  ;;
-  nios2)
-    disas_config "NIOS2"
-  ;;
-  or1k)
-    disas_config "OPENRISC"
-  ;;
-  ppc*)
-    disas_config "PPC"
-  ;;
-  riscv*)
-    disas_config "RISCV"
-  ;;
-  rx)
-    disas_config "RX"
-  ;;
-  s390*)
-    disas_config "S390"
-  ;;
-  sh4)
-    disas_config "SH4"
-  ;;
-  sparc*)
-    disas_config "SPARC"
-  ;;
-  xtensa*)
-    disas_config "XTENSA"
-  ;;
-  esac
-done
-if test "$tcg_interpreter" = "yes" ; then
-  disas_config "TCI"
-fi
-
 done # for target in $targets
 
 if [ "$fdt" = "git" ]; then

disas/meson.build

@@ -22,6 +22,4 @@ common_ss.add(when: 'CONFIG_SH4_DIS', if_true: files('sh4.c'))
 common_ss.add(when: 'CONFIG_SPARC_DIS', if_true: files('sparc.c'))
 common_ss.add(when: 'CONFIG_XTENSA_DIS', if_true: files('xtensa.c'))
 
-# TODO: As long as the TCG interpreter and its generated code depend
+specific_ss.add(when: 'CONFIG_TCG_INTERPRETER', if_true: files('tci.c'))
-# on the QEMU target, we cannot compile the disassembler here.
-#common_ss.add(when: 'CONFIG_TCI_DIS', if_true: files('tci.c'))

meson.build

@@ -14,7 +14,6 @@ ss = import('sourceset')
 sh = find_program('sh')
 cc = meson.get_compiler('c')
 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
-config_all_disas = keyval.load(meson.current_build_dir() / 'config-all-disas.mak')
 enable_modules = 'CONFIG_MODULES' in config_host
 enable_static = 'CONFIG_STATIC' in config_host
 build_docs = 'BUILD_DOCS' in config_host
@@ -461,10 +460,44 @@ genh += configure_file(output: 'config-host.h', configuration: config_host_data)
 
 minikconf = find_program('scripts/minikconf.py')
 config_all_devices = {}
+config_all_disas = {}
 config_devices_mak_list = []
 config_devices_h = {}
 config_target_h = {}
 config_target_mak = {}
+
+disassemblers = {
+  'alpha' : ['CONFIG_ALPHA_DIS'],
+  'arm' : ['CONFIG_ARM_DIS'],
+  'avr' : ['CONFIG_AVR_DIS'],
+  'cris' : ['CONFIG_CRIS_DIS'],
+  'hppa' : ['CONFIG_HPPA_DIS'],
+  'i386' : ['CONFIG_I386_DIS'],
+  'x86_64' : ['CONFIG_I386_DIS'],
+  'x32' : ['CONFIG_I386_DIS'],
+  'lm32' : ['CONFIG_LM32_DIS'],
+  'm68k' : ['CONFIG_M68K_DIS'],
+  'microblaze' : ['CONFIG_MICROBLAZE_DIS'],
+  'mips' : ['CONFIG_MIPS_DIS'],
+  'moxie' : ['CONFIG_MOXIE_DIS'],
+  'nios2' : ['CONFIG_NIOS2_DIS'],
+  'or1k' : ['CONFIG_OPENRISC_DIS'],
+  'ppc' : ['CONFIG_PPC_DIS'],
+  'riscv' : ['CONFIG_RISCV_DIS'],
+  'rx' : ['CONFIG_RX_DIS'],
+  's390' : ['CONFIG_S390_DIS'],
+  'sh4' : ['CONFIG_SH4_DIS'],
+  'sparc' : ['CONFIG_SPARC_DIS'],
+  'xtensa' : ['CONFIG_XTENSA_DIS'],
+}
+if link_language == 'cpp'
+  disassemblers += {
+    'aarch64' : [ 'CONFIG_ARM_A64_DIS'],
+    'arm' : [ 'CONFIG_ARM_DIS', 'CONFIG_ARM_A64_DIS'],
+    'mips' : [ 'CONFIG_MIPS_DIS', 'CONFIG_NANOMIPS_DIS'],
+  }
+endif
+
 kconfig_external_symbols = [
   'CONFIG_KVM',
   'CONFIG_XEN',
@@ -480,9 +513,19 @@ kconfig_external_symbols = [
   'CONFIG_PVRDMA',
 ]
 ignored = ['TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_DIRS']
+
 foreach target : target_dirs
   config_target = keyval.load(meson.current_build_dir() / target / 'config-target.mak')
 
+  foreach k, v: disassemblers
+    if config_host['ARCH'].startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
+      foreach sym: v
+        config_target += { sym: 'y' }
+        config_all_disas += { sym: 'y' }
+      endforeach
+    endif
+  endforeach
+
   config_target_data = configuration_data()
   foreach k, v: config_target
     if not k.startswith('TARGET_') and not k.startswith('CONFIG_')