Signed-off-by: Lluís Vilanova <vilan...@ac.upc.edu> --- hmp-commands.hx | 28 ++++++++++++++++++++++++++ monitor.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+)
diff --git a/hmp-commands.hx b/hmp-commands.hx index 1941e19932..703d7262f5 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1858,6 +1858,34 @@ ETEXI .sub_table = info_cmds, }, + { + .name = "instr-load", + .args_type = "path:F,args:s?", + .params = "path [arg]", + .help = "load an instrumentation library", + .cmd = hmp_instr_load, + }, + +STEXI +@item instr-load @var{path} [args=value[,...]] +@findex instr-load +Load an instrumentation library. +ETEXI + + { + .name = "instr-unload", + .args_type = "handle:i", + .params = "handle", + .help = "unload an instrumentation library", + .cmd = hmp_instr_unload, + }, + +STEXI +@item instr-unload +@findex instr-unload +Unload an instrumentation library. +ETEXI + STEXI @end table ETEXI diff --git a/monitor.c b/monitor.c index e0f880107f..8a7684f860 100644 --- a/monitor.c +++ b/monitor.c @@ -2319,6 +2319,66 @@ int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp) return fd; } +static void hmp_instr_load(Monitor *mon, const QDict *qdict) +{ + const char *path = qdict_get_str(qdict, "path"); + const char *str = qdict_get_try_str(qdict, "args"); + strList args; + args.value = (str == NULL) ? NULL : (char *)str; + args.next = NULL; + InstrLoadResult *res = qmp_instr_load(path, args.value != NULL, + args.value != NULL ? &args : NULL, + NULL); + switch (res->code) { + case INSTR_LOAD_CODE_OK: + monitor_printf(mon, "Handle: %"PRId64"\n", res->handle); + monitor_printf(mon, "OK\n"); + break; + case INSTR_LOAD_CODE_TOO_MANY: + monitor_printf(mon, "Too many instrumentation libraries already loaded\n"); + break; + case INSTR_LOAD_CODE_ERROR: + monitor_printf(mon, "Instrumentation library returned a non-zero value during initialization"); + break; + case INSTR_LOAD_CODE_DLERROR: + monitor_printf(mon, "Error loading library: %s\n", res->msg); + break; + case INSTR_LOAD_CODE_UNAVAILABLE: + monitor_printf(mon, "Service not available\n"); + break; + default: + fprintf(stderr, "Unknown instrumentation load code: %d", res->code); + exit(1); + break; + } + qapi_free_InstrLoadResult(res); +} + +static void hmp_instr_unload(Monitor *mon, const QDict *qdict) +{ + int64_t handle = qdict_get_int(qdict, "handle"); + InstrUnloadResult *res = qmp_instr_unload(handle, NULL); + switch (res->code) { + case INSTR_UNLOAD_CODE_OK: + monitor_printf(mon, "OK\n"); + break; + case INSTR_UNLOAD_CODE_INVALID: + monitor_printf(mon, "Invalid handle\n"); + break; + case INSTR_UNLOAD_CODE_DLERROR: + monitor_printf(mon, "Error unloading library: %s\n", res->msg); + break; + case INSTR_UNLOAD_CODE_UNAVAILABLE: + monitor_printf(mon, "Service not available\n"); + break; + default: + fprintf(stderr, "Unknown instrumentation unload code: %d", res->code); + exit(1); + break; + } + qapi_free_InstrUnloadResult(res); +} + /* Please update hmp-commands.hx when adding or changing commands */ static mon_cmd_t info_cmds[] = { #include "hmp-commands-info.h"