[PATCH 02/27] cpus: Introduce CPUClass::exception_name() handler

["Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>]

Have targets register a helper to resolve their exceptions.

Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
---
 include/hw/core/cpu.h       | 2 ++
 accel/tcg/cpu-exec-common.c | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 328e30045ce..1d73cc69af8 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -105,6 +105,7 @@ struct SysemuCPUOps;
  * @list_cpus: list available CPU models and flags.
  * @parse_features: Callback to parse command line arguments.
  * @reset_dump_flags: #CPUDumpFlags to use for reset logging.
+ * @exception_name: Callback for getting architecture exception name.
  * @memory_rw_debug: Callback for GDB memory access.
  * @dump_state: Callback for dumping state.
  * @query_cpu_fast:
@@ -175,6 +176,7 @@ struct CPUClass {
     const char * (*gdb_arch_name)(CPUState *cpu);
     const char * (*gdb_get_core_xml_file)(CPUState *cpu);
 
+    const char *(*exception_name)(int exception);
     void (*disas_set_info)(const CPUState *cpu, disassemble_info *info);
 
     const char *deprecation_note;
diff --git a/accel/tcg/cpu-exec-common.c b/accel/tcg/cpu-exec-common.c
index 2ac8380d0bb..12cac8aec3c 100644
--- a/accel/tcg/cpu-exec-common.c
+++ b/accel/tcg/cpu-exec-common.c
@@ -117,6 +117,12 @@ static void log_raise_exception(const CPUState *cpu, int excp)
     if (excp >= EXCP_QEMU_INTERNAL) {
         qemu_log_mask(CPU_LOG_INT, "raise exception: 0x%x (internal: %s)\n",
                                    excp, qemu_excp_name(excp));
+    } else {
+        const CPUClass *cc = cpu->cc;
+        const char *name = cc->exception_name ? cc->exception_name(excp)
+                                              : "undocumented";
+
+        qemu_log_mask(CPU_LOG_INT, "raise exception: %d (%s)\n", excp, name);
     }
 }
 
-- 
2.55.0