[PATCH v4 3/8] target/mips: Add semihosting stub

[Philippe Mathieu-Daudé]

Since the SEMIHOSTING feature is optional, we need
a stub to link when it is disabled.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/mips/tcg/sysemu/semihosting-stub.c | 15 +++++++++++++++
 target/mips/tcg/sysemu/meson.build        |  6 ++++--
 2 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 target/mips/tcg/sysemu/semihosting-stub.c

diff --git a/target/mips/tcg/sysemu/semihosting-stub.c 
b/target/mips/tcg/sysemu/semihosting-stub.c
new file mode 100644
index 0000000000..7ae27d746f
--- /dev/null
+++ b/target/mips/tcg/sysemu/semihosting-stub.c
@@ -0,0 +1,15 @@
+/*
+ *  MIPS semihosting stub
+ *
+ * SPDX-FileContributor: Philippe Mathieu-Daudé <philmd@linaro.org>
+ * SPDX-FileCopyrightText: 2024 Linaro Ltd.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "internal.h"
+
+void mips_semihosting(CPUMIPSState *env)
+{
+    g_assert_not_reached();
+}
diff --git a/target/mips/tcg/sysemu/meson.build 
b/target/mips/tcg/sysemu/meson.build
index ec665a4b1e..911341ac37 100644
--- a/target/mips/tcg/sysemu/meson.build
+++ b/target/mips/tcg/sysemu/meson.build
@@ -1,10 +1,12 @@
 mips_system_ss.add(files(
   'cp0_helper.c',
-  'mips-semi.c',
   'special_helper.c',
   'tlb_helper.c',
 ))
-
+mips_system_ss.add(when: ['CONFIG_SEMIHOSTING'],
+  if_true: files('mips-semi.c'),
+  if_false: files('semihosting-stub.c')
+)
 mips_system_ss.add(when: 'TARGET_MIPS64', if_true: files(
   'lcsr_helper.c',
 ))
-- 
2.41.0