[PATCH-for-9.1 13/21] system: Introduce cpu_typename_by_arch_bit()

[Philippe Mathieu-Daudé]

Introduce a helper to return the CPU type name given a QemuArchBit.

The TYPE_PPC_CPU target have different 32/64-bit definitions
so we can not include it yet.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
---
 MAINTAINERS                |  1 +
 include/sysemu/arch_init.h |  2 ++
 system/cpu-qom-helpers.c   | 58 ++++++++++++++++++++++++++++++++++++++
 system/meson.build         |  1 +
 4 files changed, 62 insertions(+)
 create mode 100644 system/cpu-qom-helpers.c

diff --git a/MAINTAINERS b/MAINTAINERS
index ed98814398..af27490243 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -148,6 +148,7 @@ M: Richard Henderson <richard.henderson@linaro.org>
 R: Paolo Bonzini <pbonzini@redhat.com>
 S: Maintained
 F: system/cpus.c
+F: system/cpu-qom-helpers.c
 F: system/watchpoint.c
 F: cpu-common.c
 F: cpu-target.c
diff --git a/include/sysemu/arch_init.h b/include/sysemu/arch_init.h
index cf597c40a3..1874f18e67 100644
--- a/include/sysemu/arch_init.h
+++ b/include/sysemu/arch_init.h
@@ -27,6 +27,8 @@ typedef enum QemuArchBit {
     QEMU_ARCH_BIT_LAST          = QEMU_ARCH_BIT_LOONGARCH
 } QemuArchBit;
 
+const char *cpu_typename_by_arch_bit(QemuArchBit arch_bit);
+
 enum QemuArchMask {
     QEMU_ARCH_ALL = -1,
     QEMU_ARCH_ALPHA             = (1 << QEMU_ARCH_BIT_ALPHA),
diff --git a/system/cpu-qom-helpers.c b/system/cpu-qom-helpers.c
new file mode 100644
index 0000000000..0d402ee3a0
--- /dev/null
+++ b/system/cpu-qom-helpers.c
@@ -0,0 +1,58 @@
+/*
+ * Helpers for CPU QOM types
+ *
+ * SPDX-FileCopyrightText: 2024 Linaro Ltd.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "sysemu/arch_init.h"
+
+#include "target/alpha/cpu-qom.h"
+#include "target/arm/cpu-qom.h"
+#include "target/avr/cpu-qom.h"
+#include "target/cris/cpu-qom.h"
+#include "target/hexagon/cpu-qom.h"
+#include "target/hppa/cpu-qom.h"
+#include "target/i386/cpu-qom.h"
+#include "target/loongarch/cpu-qom.h"
+#include "target/m68k/cpu-qom.h"
+#include "target/microblaze/cpu-qom.h"
+#include "target/mips/cpu-qom.h"
+#include "target/nios2/cpu-qom.h"
+#include "target/openrisc/cpu-qom.h"
+#include "target/riscv/cpu-qom.h"
+#include "target/rx/cpu-qom.h"
+#include "target/s390x/cpu-qom.h"
+#include "target/sparc/cpu-qom.h"
+#include "target/sh4/cpu-qom.h"
+#include "target/tricore/cpu-qom.h"
+#include "target/xtensa/cpu-qom.h"
+
+const char *cpu_typename_by_arch_bit(QemuArchBit arch_bit)
+{
+    static const char *cpu_bit_to_typename[QEMU_ARCH_BIT_LAST + 1] = {
+        [QEMU_ARCH_BIT_ALPHA]       = TYPE_ALPHA_CPU,
+        [QEMU_ARCH_BIT_ARM]         = TYPE_ARM_CPU,
+        [QEMU_ARCH_BIT_CRIS]        = TYPE_CRIS_CPU,
+        [QEMU_ARCH_BIT_I386]        = TYPE_I386_CPU,
+        [QEMU_ARCH_BIT_M68K]        = TYPE_M68K_CPU,
+        [QEMU_ARCH_BIT_MICROBLAZE]  = TYPE_MICROBLAZE_CPU,
+        [QEMU_ARCH_BIT_MIPS]        = TYPE_MIPS_CPU,
+        /* TODO:                      TYPE_PPC_CPU */
+        [QEMU_ARCH_BIT_S390X]       = TYPE_S390_CPU,
+        [QEMU_ARCH_BIT_SH4]         = TYPE_SUPERH_CPU,
+        [QEMU_ARCH_BIT_SPARC]       = TYPE_SPARC_CPU,
+        [QEMU_ARCH_BIT_XTENSA]      = TYPE_XTENSA_CPU,
+        [QEMU_ARCH_BIT_OPENRISC]    = TYPE_OPENRISC_CPU,
+        [QEMU_ARCH_BIT_TRICORE]     = TYPE_TRICORE_CPU,
+        [QEMU_ARCH_BIT_NIOS2]       = TYPE_NIOS2_CPU,
+        [QEMU_ARCH_BIT_HPPA]        = TYPE_HPPA_CPU,
+        [QEMU_ARCH_BIT_RISCV]       = TYPE_RISCV_CPU,
+        [QEMU_ARCH_BIT_RX]          = TYPE_RX_CPU,
+        [QEMU_ARCH_BIT_AVR]         = TYPE_AVR_CPU,
+        [QEMU_ARCH_BIT_HEXAGON]     = TYPE_HEXAGON_CPU,
+        [QEMU_ARCH_BIT_LOONGARCH]   = TYPE_LOONGARCH_CPU,
+    };
+    return cpu_bit_to_typename[arch_bit];
+}
diff --git a/system/meson.build b/system/meson.build
index 25e2117250..c6ee97e3b2 100644
--- a/system/meson.build
+++ b/system/meson.build
@@ -10,6 +10,7 @@ system_ss.add(files(
   'balloon.c',
   'bootdevice.c',
   'cpus.c',
+  'cpu-qom-helpers.c',
   'cpu-throttle.c',
   'cpu-timers.c',
   'datadir.c',
-- 
2.41.0