When possible, use tgkill instead of tkill syscall on Linux.

[Robert Shearman]

Eric Pouech wrote:

>diff --git a/server/context_x86_64.c b/server/context_x86_64.c
>index c102510..e5d8fc2 100644
>--- a/server/context_x86_64.c
>+++ b/server/context_x86_64.c
>@@ -271,12 +271,12 @@ int get_thread_single_step( struct threa
> }
> 
> /* send a signal to a specific thread */
>-int tkill( int pid, int sig )
>+int tkill( int tgid, int pid, int sig )
> {
> #ifdef __linux__
>     int ret;
>     __asm__( "syscall" : "=a" (ret)
>-             : "0" (200) /*SYS_tkill*/, "D" (pid), "S" (sig) );
>+             : "0" (200) /*SYS_tkill*/, "D" (tid), "S" (sig) );
>  
>

Shouldn't this line change "pid" to "tgid" instead of "tid"?

-- 
Rob Shearman