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Re: [Qemu-devel] [RFC PATCH v2 2/7] Add plugin support


From: Pavel Dovgalyuk
Subject: Re: [Qemu-devel] [RFC PATCH v2 2/7] Add plugin support
Date: Tue, 18 Sep 2018 08:34:55 +0300

> From: Aaron Lindsay [mailto:address@hidden
> On Sep 10 14:41, Pavel Dovgalyuk wrote:
> > From: Alex Bennée [mailto:address@hidden
> > > Currently this is only available to system mode emulation. Can it be
> > > extended to include linux-user as well?
> >
> > Why not? I'm not familiar with linux-user, so I'll need some time to try.
> 
> Yes. In fact, your existing setup made it quite simple:

Thank you.

Pavel Dovgalyuk
> 
> 
> Subject: [PATCH] plugin: Add linux-user support
> 
> Signed-off-by: Aaron Lindsay <address@hidden>
> ---
>  linux-user/main.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/linux-user/main.c b/linux-user/main.c
> index 923cbb753a..4c70f9f8c5 100644
> --- a/linux-user/main.c
> +++ b/linux-user/main.c
> @@ -37,6 +37,7 @@
>  #include "trace/control.h"
>  #include "target_elf.h"
>  #include "cpu_loop-common.h"
> +#include "qemu/plugins.h"
> 
>  char *exec_path;
> 
> @@ -385,6 +386,11 @@ static void handle_arg_trace(const char *arg)
>      trace_file = trace_opt_parse(arg);
>  }
> 
> +static void handle_arg_plugin(const char *arg)
> +{
> +    qemu_plugin_parse_cmd_args(arg);
> +}
> +
>  struct qemu_argument {
>      const char *argv;
>      const char *env;
> @@ -436,6 +442,10 @@ static const struct qemu_argument arg_table[] = {
>       "",           "Seed for pseudo-random number generator"},
>      {"trace",      "QEMU_TRACE",       true,  handle_arg_trace,
>       "",           "[[enable=]<pattern>][,events=<file>][,file=<file>]"},
> +#ifdef CONFIG_PLUGINS
> +    {"plugin",     "QEMU_PLUGIN",      true,  handle_arg_plugin,
> +     "",           "file=<plugin_so>[,args=<args>]"},
> +#endif
>      {"version",    "QEMU_VERSION",     false, handle_arg_version,
>       "",           "display version information and exit"},
>      {NULL, NULL, false, NULL, NULL, NULL}
> @@ -816,6 +826,9 @@ int main(int argc, char **argv, char **envp)
>          }
>          gdb_handlesig(cpu, 0);
>      }
> +
> +    qemu_plugins_init();
> +
>      cpu_loop(env);
>      /* never exits */
>      return 0;
> --
> 2.19.0





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