[PATCH 1/4] tests/libqtest: Introduce qtest_get_arch_bits()

[Philippe Mathieu-Daudé]

Add a method to return the architecture bits (currently 8/32/64).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/qtest/libqtest.h |  8 ++++++++
 tests/qtest/libqtest.c | 21 +++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/tests/qtest/libqtest.h b/tests/qtest/libqtest.h
index e53e350e3a..1e1b42241d 100644
--- a/tests/qtest/libqtest.h
+++ b/tests/qtest/libqtest.h
@@ -654,6 +654,14 @@ bool qtest_big_endian(QTestState *s);
  */
 const char *qtest_get_arch(void);
 
+/**
+ * qtest_get_arch_bits:
+ *
+ * Returns: The architecture bits (a.k.a. word size) for the QEMU executable
+ * under test.
+ */
+unsigned qtest_get_arch_bits(void);
+
 /**
  * qtest_has_accel:
  * @accel_name: Accelerator name to check for.
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index b1eba71ffe..a643a6309c 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -925,6 +925,27 @@ const char *qtest_get_arch(void)
     return end + 1;
 }
 
+unsigned qtest_get_arch_bits(void)
+{
+    static const char *const arch64[] = {
+        "aarch64", "hppa", "x86_64", "loongarch64", "mips64",
+        "mips64el", "ppc64", "riscv64", "s390x", "sparc64",
+    };
+    const char *arch = qtest_get_arch();
+
+    if (!strcmp(arch, "avr")) {
+        return 8;
+    }
+
+    for (unsigned i = 0; i < ARRAY_SIZE(arch64); i++) {
+        if (!strcmp(arch, arch64[i])) {
+            return 64;
+        }
+    }
+
+    return 32;
+}
+
 bool qtest_has_accel(const char *accel_name)
 {
     if (g_str_equal(accel_name, "tcg")) {
-- 
2.41.0