run trace under GDB in batch mode and print SP in every frame

gdb-batch.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+make
+gdb --batch --command=script.gdb ./build/trace

script.gdb

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+# http://sourceware.org/gdb/wiki/FAQ: to disable the
+# "---Type <return> to continue, or q <return> to quit---"
+# in batch mode:
+set width 0
+set height 0
+set verbose off
+# enable breakpoint pending on future shared library load in batch
+set breakpoint pending on
+dashboard -enabled off
+handle SIGSEGV nostop noprint
+
+b _start
+commands 1
+  p $rsp
+  continue
+end
+
+# at __libc_start_main point - print RSP
+b __libc_start_main
+commands 2
+  p $rsp
+  continue
+end
+
+# at entry point - print RSP
+b main
+commands 3
+  p $rsp
+  continue
+end
+
+# at Fun1 point - print RSP
+b Fun1
+commands 4
+  p $rsp
+  continue
+end
+
+# at Fun2 point - print RSP
+b Fun2
+commands 5
+  p $rsp
+  printf "\n"
+  continue
+end
+
+# show arguments for program
+#show args
+#printf "Note, however: in batch mode, arguments will be ignored!\n"
+
+# note: even if arguments are shown;
+# must specify cmdline arg for "run"
+# when running in batch mode! (then they are ignored)
+# below, we specify command line argument "2":
+run      # run
+
+#start # alternative to run: runs to main, and stops
+#continue