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[v14,02/18] gdbstub: Introduce gdb_find_static_feature()

Message ID 20231019102657.129512-3-akihiko.odaki@daynix.com
State New
Headers show
Series plugins: Allow to read registers | expand

Commit Message

Akihiko Odaki Oct. 19, 2023, 10:26 a.m. UTC 
This function is useful to determine the number of registers exposed to
GDB from the XML name.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/exec/gdbstub.h |  2 ++
 gdbstub/gdbstub.c      | 13 +++++++++++++
 2 files changed, 15 insertions(+)
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Patch

diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h
index a43aa34dad..071021415a 100644
--- a/include/exec/gdbstub.h
+++ b/include/exec/gdbstub.h
@@ -44,6 +44,8 @@  void gdb_register_coprocessor(CPUState *cpu,
  */
 int gdbserver_start(const char *port_or_device);
 
+const GDBFeature *gdb_find_static_feature(const char *xmlname);
+
 void gdb_set_stop_cpu(CPUState *cpu);
 
 /* in gdbstub-xml.c, generated by scripts/feature_to_c.py */
diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 29540a0284..ae24c4848f 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -422,6 +422,19 @@  static const char *get_feature_xml(const char *p, const char **newp,
     return NULL;
 }
 
+const GDBFeature *gdb_find_static_feature(const char *xmlname)
+{
+    const GDBFeature *feature;
+
+    for (feature = gdb_static_features; feature->xmlname; feature++) {
+        if (!strcmp(feature->xmlname, xmlname)) {
+            return feature;
+        }
+    }
+
+    g_assert_not_reached();
+}
+
 static int gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);