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[Qemu-devel] [PATCH v4 08/20] instrument: [hmp] Add library loader
From: |
Lluís Vilanova |
Subject: |
[Qemu-devel] [PATCH v4 08/20] instrument: [hmp] Add library loader |
Date: |
Wed, 6 Sep 2017 20:55:00 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Signed-off-by: Lluís Vilanova <address@hidden>
---
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
address@hidden instr-load @var{path} [args=value[,...]]
address@hidden 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
address@hidden instr-unload
address@hidden 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"
- [Qemu-devel] [PATCH v4 02/20] instrument: Add configure-time flag, (continued)
- [Qemu-devel] [PATCH v4 02/20] instrument: Add configure-time flag, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 03/20] instrument: Add generic library loader, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 04/20] instrument: [linux-user] Add command line library loader, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 05/20] instrument: [bsd-user] Add command line library loader, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 06/20] instrument: [softmmu] Add command line library loader, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 07/20] instrument: [qapi] Add library loader, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 08/20] instrument: [hmp] Add library loader,
Lluís Vilanova <=
- [Qemu-devel] [PATCH v4 09/20] instrument: Add basic control interface, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 10/20] instrument: Add support for tracing events, Lluís Vilanova, 2017/09/06
- [Qemu-devel] [PATCH v4 11/20] instrument: Track vCPUs, Lluís Vilanova, 2017/09/06