From a150e03e248add82a23bb5ffb2242037cdcdd5d6 Mon Sep 17 00:00:00 2001
From: Matias N <matias@protobits.dev>
Date: Sun, 17 Jan 2021 00:18:04 -0300
Subject: [PATCH] gdbinit: add support for reporting total and used stack size

This checks if the required function is defined (when stack coloration
is enabled) and, if so, calls it to get used stack. Otherwise it just
reports zero used stack.
---
 tools/nuttx-gdbinit | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/tools/nuttx-gdbinit b/tools/nuttx-gdbinit
index e917bfd8de..fb0b91df8a 100644
--- a/tools/nuttx-gdbinit
+++ b/tools/nuttx-gdbinit
@@ -67,6 +67,9 @@ define _examine_target
 
     set $_target_max_tasks = sizeof(g_pidhash) / sizeof(struct pidhash_s)
 
+    python if (type(gdb.lookup_global_symbol("up_check_tcbstack")) is gdb.Symbol) : \
+    gdb.execute("set $_target_has_stack_coloration = 1")
+
     printf "target examined \n"
     python print("_target_arch.name=" + _target_arch.name())
 
@@ -88,9 +91,15 @@ define _print_thread
     printf "  "
   end
 
-  printf "%d Thread 0x%x  (Name: %s, State: %s, Priority: %d) 0x%x in ", \
+  if ($_target_has_stack_coloration)
+    set $stack_used = up_check_tcbstack($tcb)
+  else
+    set $stack_used = 0
+  end
+
+  printf "%d Thread 0x%x  (Name: %s, State: %s, Priority: %d, Stack: %d/%d) PC: 0x%x in ", \
   $tcb->pid, $tcb, $tcb->name, g_statenames[$tcb->task_state], $tcb->sched_priority, \
-  $tcb->xcp.regs[$_pc_reg_idx]
+  $stack_used, $tcb->adj_stack_size, $tcb->xcp.regs[$_pc_reg_idx]
   python _symbol = gdb.execute("info symbol $tcb->xcp.regs[$_pc_reg_idx]", to_string=True); \
   print(_symbol.split()[0] + "()")
 end