Add trace events to help follow how the various files in
gdb-xml/ are parsed or generated at runtime.

Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
 gdbstub/gdbstub.c    | 10 ++++++++++
 gdbstub/trace-events |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index 139301b485d..9703688eecc 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -478,6 +478,10 @@ void gdb_feature_builder_end(const GDBFeatureBuilder 
*builder)
 
     builder->feature->num_regs = builder->regs->len;
     builder->feature->regs = (void *)g_ptr_array_free(builder->regs, FALSE);
+    trace_gdbxml_feature_builder_header(builder->feature->name,
+                                        builder->feature->xmlname,
+                                        builder->feature->num_regs);
+    trace_gdbxml_feature_builder_content(builder->feature->xml);
 }
 
 const GDBFeature *gdb_find_static_feature(const char *xmlname)
@@ -563,6 +567,8 @@ static void gdb_register_feature(CPUState *cpu, int 
base_reg,
         .feature = feature
     };
 
+    trace_gdbxml_register_feature(feature->name, feature->xmlname,
+                                  base_reg, feature->num_regs);
     g_array_append_val(cpu->gdb_regs, s);
 }
 
@@ -599,6 +605,10 @@ void gdb_init_cpu(CPUState *cpu)
         assert(cc->gdb_num_core_regs);
         cpu->gdb_num_regs = cpu->gdb_num_g_regs = cc->gdb_num_core_regs;
     }
+
+    trace_gdbxml_init_cpu(object_get_typename(OBJECT(cpu)), cpu->cpu_index,
+                          cpu->gdb_num_regs, cpu->gdb_num_g_regs,
+                          cc->gdb_num_core_regs);
 }
 
 void gdb_register_coprocessor(CPUState *cpu,
diff --git a/gdbstub/trace-events b/gdbstub/trace-events
index 4fd126a38c1..44ef3339934 100644
--- a/gdbstub/trace-events
+++ b/gdbstub/trace-events
@@ -28,5 +28,10 @@ gdbstub_err_checksum_invalid(uint8_t ch) "got invalid 
command checksum digit: 0x
 gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command 
packet with incorrect checksum, expected=0x%02x, received=0x%02x"
 gdbstub_err_unexpected_runpkt(uint8_t ch) "unexpected packet (0x%02x) while 
target running"
 
+gdbxml_init_cpu(const char *typename, unsigned id, unsigned gdb_num_regs, 
unsigned gdb_num_g_regs, unsigned gdb_num_core_regs) "%s:%d regs:%u g_regs:%u 
core_regs:%u"
+gdbxml_register_feature(const char *featname, const char *xmlname, unsigned 
base_reg, unsigned num_regs) "%s (%s) @%u +%u"
+gdbxml_feature_builder_header(const char *name, const char *xmlname, int 
num_regs) "%s (%s) regs:%d"
+gdbxml_feature_builder_content(const char *xml) "%s"
+
 # system.c
 gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) 
"Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
-- 
2.53.0


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