[PATCH v2 1/5] meson: Introduce target-specific Kconfig

[Alex Bennée]

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

Add a target-specific Kconfig. We need the definitions in Kconfig so
the minikconf tool can verify they exits. However CONFIG_FOO is only
enabled for target foo via the meson.build rules.

Two architecture have a particularity, ARM and MIPS. As their
translators have been split you can potentially build a plain 32 bit
build along with a 64-bit version including the 32-bit subset.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210131111316.232778-6-f4bug@amsat.org>
Message-Id: <20210621152120.4465-2-alex.bennee@linaro.org>

---
v2
  - s/exit/exist/
  - explain why we can split 32/64 builds for ARM/MIPS
---
 meson.build               |  3 ++-
 Kconfig                   |  1 +
 target/Kconfig            | 19 +++++++++++++++++++
 target/alpha/Kconfig      |  2 ++
 target/arm/Kconfig        |  6 ++++++
 target/avr/Kconfig        |  2 ++
 target/cris/Kconfig       |  2 ++
 target/hppa/Kconfig       |  2 ++
 target/i386/Kconfig       |  5 +++++
 target/m68k/Kconfig       |  2 ++
 target/microblaze/Kconfig |  2 ++
 target/mips/Kconfig       |  6 ++++++
 target/nios2/Kconfig      |  2 ++
 target/openrisc/Kconfig   |  2 ++
 target/ppc/Kconfig        |  5 +++++
 target/riscv/Kconfig      |  5 +++++
 target/rx/Kconfig         |  2 ++
 target/s390x/Kconfig      |  2 ++
 target/sh4/Kconfig        |  2 ++
 target/sparc/Kconfig      |  5 +++++
 target/tricore/Kconfig    |  2 ++
 target/xtensa/Kconfig     |  2 ++
 22 files changed, 80 insertions(+), 1 deletion(-)
 create mode 100644 target/Kconfig
 create mode 100644 target/alpha/Kconfig
 create mode 100644 target/arm/Kconfig
 create mode 100644 target/avr/Kconfig
 create mode 100644 target/cris/Kconfig
 create mode 100644 target/hppa/Kconfig
 create mode 100644 target/i386/Kconfig
 create mode 100644 target/m68k/Kconfig
 create mode 100644 target/microblaze/Kconfig
 create mode 100644 target/mips/Kconfig
 create mode 100644 target/nios2/Kconfig
 create mode 100644 target/openrisc/Kconfig
 create mode 100644 target/ppc/Kconfig
 create mode 100644 target/riscv/Kconfig
 create mode 100644 target/rx/Kconfig
 create mode 100644 target/s390x/Kconfig
 create mode 100644 target/sh4/Kconfig
 create mode 100644 target/sparc/Kconfig
 create mode 100644 target/tricore/Kconfig
 create mode 100644 target/xtensa/Kconfig

diff --git a/meson.build b/meson.build
index 7e12de01be..1b1abbd030 100644
--- a/meson.build
+++ b/meson.build
@@ -1593,7 +1593,8 @@ foreach target : target_dirs
       command: [minikconf,
                 get_option('default_devices') ? '--defconfig' : 
'--allnoconfig',
                 config_devices_mak, '@DEPFILE@', '@INPUT@',
-                host_kconfig, accel_kconfig])
+                host_kconfig, accel_kconfig,
+                'CONFIG_' + config_target['TARGET_ARCH'].to_upper() + '=y'])
 
     config_devices_data = configuration_data()
     config_devices = keyval.load(config_devices_mak)
diff --git a/Kconfig b/Kconfig
index d52ebd839b..fb6a24a2de 100644
--- a/Kconfig
+++ b/Kconfig
@@ -1,5 +1,6 @@
 source Kconfig.host
 source backends/Kconfig
 source accel/Kconfig
+source target/Kconfig
 source hw/Kconfig
 source semihosting/Kconfig
diff --git a/target/Kconfig b/target/Kconfig
new file mode 100644
index 0000000000..ae7f24fc66
--- /dev/null
+++ b/target/Kconfig
@@ -0,0 +1,19 @@
+source alpha/Kconfig
+source arm/Kconfig
+source avr/Kconfig
+source cris/Kconfig
+source hppa/Kconfig
+source i386/Kconfig
+source m68k/Kconfig
+source microblaze/Kconfig
+source mips/Kconfig
+source nios2/Kconfig
+source openrisc/Kconfig
+source ppc/Kconfig
+source riscv/Kconfig
+source rx/Kconfig
+source s390x/Kconfig
+source sh4/Kconfig
+source sparc/Kconfig
+source tricore/Kconfig
+source xtensa/Kconfig
diff --git a/target/alpha/Kconfig b/target/alpha/Kconfig
new file mode 100644
index 0000000000..267222c05b
--- /dev/null
+++ b/target/alpha/Kconfig
@@ -0,0 +1,2 @@
+config ALPHA
+    bool
diff --git a/target/arm/Kconfig b/target/arm/Kconfig
new file mode 100644
index 0000000000..3f3394a22b
--- /dev/null
+++ b/target/arm/Kconfig
@@ -0,0 +1,6 @@
+config ARM
+    bool
+
+config AARCH64
+    bool
+    select ARM
diff --git a/target/avr/Kconfig b/target/avr/Kconfig
new file mode 100644
index 0000000000..155592d353
--- /dev/null
+++ b/target/avr/Kconfig
@@ -0,0 +1,2 @@
+config AVR
+    bool
diff --git a/target/cris/Kconfig b/target/cris/Kconfig
new file mode 100644
index 0000000000..3fdc309fbb
--- /dev/null
+++ b/target/cris/Kconfig
@@ -0,0 +1,2 @@
+config CRIS
+    bool
diff --git a/target/hppa/Kconfig b/target/hppa/Kconfig
new file mode 100644
index 0000000000..395a35d799
--- /dev/null
+++ b/target/hppa/Kconfig
@@ -0,0 +1,2 @@
+config HPPA
+    bool
diff --git a/target/i386/Kconfig b/target/i386/Kconfig
new file mode 100644
index 0000000000..ce6968906e
--- /dev/null
+++ b/target/i386/Kconfig
@@ -0,0 +1,5 @@
+config I386
+    bool
+
+config X86_64
+    bool
diff --git a/target/m68k/Kconfig b/target/m68k/Kconfig
new file mode 100644
index 0000000000..23debad519
--- /dev/null
+++ b/target/m68k/Kconfig
@@ -0,0 +1,2 @@
+config M68K
+    bool
diff --git a/target/microblaze/Kconfig b/target/microblaze/Kconfig
new file mode 100644
index 0000000000..a5410d9218
--- /dev/null
+++ b/target/microblaze/Kconfig
@@ -0,0 +1,2 @@
+config MICROBLAZE
+    bool
diff --git a/target/mips/Kconfig b/target/mips/Kconfig
new file mode 100644
index 0000000000..6adf145354
--- /dev/null
+++ b/target/mips/Kconfig
@@ -0,0 +1,6 @@
+config MIPS
+    bool
+
+config MIPS64
+    bool
+    select MIPS
diff --git a/target/nios2/Kconfig b/target/nios2/Kconfig
new file mode 100644
index 0000000000..1529ab8950
--- /dev/null
+++ b/target/nios2/Kconfig
@@ -0,0 +1,2 @@
+config NIOS2
+    bool
diff --git a/target/openrisc/Kconfig b/target/openrisc/Kconfig
new file mode 100644
index 0000000000..e0da4ac1df
--- /dev/null
+++ b/target/openrisc/Kconfig
@@ -0,0 +1,2 @@
+config OPENRISC
+    bool
diff --git a/target/ppc/Kconfig b/target/ppc/Kconfig
new file mode 100644
index 0000000000..3ff152051a
--- /dev/null
+++ b/target/ppc/Kconfig
@@ -0,0 +1,5 @@
+config PPC
+    bool
+
+config PPC64
+    bool
diff --git a/target/riscv/Kconfig b/target/riscv/Kconfig
new file mode 100644
index 0000000000..b9e5932f13
--- /dev/null
+++ b/target/riscv/Kconfig
@@ -0,0 +1,5 @@
+config RISCV32
+    bool
+
+config RISCV64
+    bool
diff --git a/target/rx/Kconfig b/target/rx/Kconfig
new file mode 100644
index 0000000000..aceb5ed28f
--- /dev/null
+++ b/target/rx/Kconfig
@@ -0,0 +1,2 @@
+config RX
+    bool
diff --git a/target/s390x/Kconfig b/target/s390x/Kconfig
new file mode 100644
index 0000000000..72da48136c
--- /dev/null
+++ b/target/s390x/Kconfig
@@ -0,0 +1,2 @@
+config S390X
+    bool
diff --git a/target/sh4/Kconfig b/target/sh4/Kconfig
new file mode 100644
index 0000000000..2397c86028
--- /dev/null
+++ b/target/sh4/Kconfig
@@ -0,0 +1,2 @@
+config SH4
+    bool
diff --git a/target/sparc/Kconfig b/target/sparc/Kconfig
new file mode 100644
index 0000000000..70cc0f3a21
--- /dev/null
+++ b/target/sparc/Kconfig
@@ -0,0 +1,5 @@
+config SPARC
+    bool
+
+config SPARC64
+    bool
diff --git a/target/tricore/Kconfig b/target/tricore/Kconfig
new file mode 100644
index 0000000000..9313409309
--- /dev/null
+++ b/target/tricore/Kconfig
@@ -0,0 +1,2 @@
+config TRICORE
+    bool
diff --git a/target/xtensa/Kconfig b/target/xtensa/Kconfig
new file mode 100644
index 0000000000..a3c8dc7f6d
--- /dev/null
+++ b/target/xtensa/Kconfig
@@ -0,0 +1,2 @@
+config XTENSA
+    bool
-- 
2.20.1