Merge remote-tracking branch 'remotes/stsquad/tags/pull-for-6.2-020921-1' into staging

Testing and plugin updates:

  - fix typo in execlog plugin
  - clean-up and document gitlab FOO_RUNNER_AVAILABLE vars
  - fix plugin build issue on OSX and modules
  - add multi-core support to cache modelling plugin
  - clean-ups for plugin arg=FOO handling

# gpg: Signature made Thu 02 Sep 2021 11:33:02 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-for-6.2-020921-1: (22 commits)
  docs/devel: be consistent about example plugin names
  docs/deprecated: deprecate passing plugin args through `arg=`
  tests/plugins/syscalls: adhere to new arg-passing scheme
  tests/plugins/mem: introduce "track" arg and make args not positional
  tests/plugins/insn: made arg inline not positional and parse it as bool
  tests/plugins/bb: adapt to the new arg passing scheme
  docs/tcg-plugins: new passing parameters scheme for cache docs
  plugins/howvec: adapting to the new argument passing scheme
  plugins/hwprofile: adapt to the new plugin arguments scheme
  plugins/lockstep: make socket path not positional & parse bool arg
  plugins/hotblocks: Added correct boolean argument parsing
  plugins/hotpages: introduce sortby arg and parsed bool args correctly
  plugins/api: added a boolean parsing plugin api
  plugins: allow plugin arguments to be passed directly
  docs/devel/tcg-plugins: added cores arg to cache plugin
  plugins: sort exported symbol list
  plugins/cache: supported multicore cache modelling
  plugins: do not limit exported symbols if modules are active
  gitlab-ci: Fix ..._RUNNER_AVAILABLE variables and document them
  gitlab-ci: Remove superfluous "dnf install" statement
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 20 insertions, 4 deletions

diff --git a/plugins/loader.c b/plugins/loader.c
index 05df40398d..a4ec281692 100644
--- a/plugins/loader.c
+++ b/plugins/loader.c
@@ -94,6 +94,8 @@ static int plugin_add(void *opaque, const char *name, const char *value,
 {
     struct qemu_plugin_parse_arg *arg = opaque;
     struct qemu_plugin_desc *p;
+    bool is_on;
+    char *fullarg;
 
     if (strcmp(name, "file") == 0) {
         if (strcmp(value, "") == 0) {
@@ -107,18 +109,32 @@ static int plugin_add(void *opaque, const char *name, const char *value,
             QTAILQ_INSERT_TAIL(arg->head, p, entry);
         }
         arg->curr = p;
-    } else if (strcmp(name, "arg") == 0) {
+    } else {
         if (arg->curr == NULL) {
             error_setg(errp, "missing earlier '-plugin file=' option");
             return 1;
         }
+
+        if (g_strcmp0(name, "arg") == 0 &&
+                !qapi_bool_parse(name, value, &is_on, NULL)) {
+            if (strchr(value, '=') == NULL) {
+                /* Will treat arg="argname" as "argname=on" */
+                fullarg = g_strdup_printf("%s=%s", value, "on");
+            } else {
+                fullarg = g_strdup_printf("%s", value);
+            }
+            warn_report("using 'arg=%s' is deprecated", value);
+            error_printf("Please use '%s' directly\n", fullarg);
+        } else {
+            fullarg = g_strdup_printf("%s=%s", name, value);
+        }
+
         p = arg->curr;
         p->argc++;
         p->argv = g_realloc_n(p->argv, p->argc, sizeof(char *));
-        p->argv[p->argc - 1] = g_strdup(value);
-    } else {
-        error_setg(errp, "-plugin: unexpected parameter '%s'; ignored", name);
+        p->argv[p->argc - 1] = fullarg;
     }
+
     return 0;
 }