user: Use get_task_state() helper

Get the TaskState pointer calling get_task_state().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240428221450.26460-11-philmd@linaro.org>

gdbstub/gdbstub.c

@@ -32,6 +32,7 @@
 #include "exec/gdbstub.h"
 #include "gdbstub/syscalls.h"
 #ifdef CONFIG_USER_ONLY
+#include "accel/tcg/vcpu-state.h"
 #include "gdbstub/user.h"
 #else
 #include "hw/cpu/cluster.h"
@@ -1661,7 +1662,7 @@ static void handle_query_supported(GArray *params, void *user_ctx)
 
 #if defined(CONFIG_USER_ONLY)
 #if defined(CONFIG_LINUX)
-    if (gdbserver_state.c_cpu->opaque) {
+    if (get_task_state(gdbserver_state.c_cpu)) {
         g_string_append(gdbserver_state.str_buf, ";qXfer:auxv:read+");
     }
     g_string_append(gdbserver_state.str_buf, ";QCatchSyscalls+");

gdbstub/user-target.c

@@ -216,7 +216,7 @@ void gdb_handle_query_offsets(GArray *params, void *user_ctx)
 {
     TaskState *ts;
 
-    ts = gdbserver_state.c_cpu->opaque;
+    ts = get_task_state(gdbserver_state.c_cpu);
     g_string_printf(gdbserver_state.str_buf,
                     "Text=" TARGET_ABI_FMT_lx
                     ";Data=" TARGET_ABI_FMT_lx
@@ -252,7 +252,7 @@ void gdb_handle_query_xfer_auxv(GArray *params, void *user_ctx)
 
     offset = get_param(params, 0)->val_ul;
     len = get_param(params, 1)->val_ul;
-    ts = gdbserver_state.c_cpu->opaque;
+    ts = get_task_state(gdbserver_state.c_cpu);
     saved_auxv = ts->info->saved_auxv;
     auxv_len = ts->info->auxv_len;
 

linux-user/syscall.c

@@ -6463,7 +6463,7 @@ static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
 
     case PR_GET_TID_ADDRESS:
         {
-            TaskState *ts = env_cpu(env)->opaque;
+            TaskState *ts = get_task_state(env_cpu(env));
             return put_user_ual(ts->child_tidptr, arg2);
         }
 
@@ -8124,7 +8124,7 @@ static int open_self_maps_2(void *opaque, target_ulong guest_start,
 static int open_self_maps_1(CPUArchState *env, int fd, bool smaps)
 {
     struct open_self_maps_data d = {
-        .ts = env_cpu(env)->opaque,
+        .ts = get_task_state(env_cpu(env)),
         .host_maps = read_self_maps(),
         .fd = fd,
         .smaps = smaps