baseboards/pru-sim.exp

   1 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
   2 #
   3 # This file is part of DejaGnu.
   4 #
   5 # DejaGnu is free software: you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # DejaGnu is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with DejaGnu.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # This is a list of toolchains that are supported on this board.
  19 set_board_info target_install {pru-elf}
  20
  21 # Load the generic configuration for this board, This will define a basic
  22 # set of routines needed by the tool to communicate with the board.
  23 load_generic_config "sim"
  24
  25 # basic-sim.exp is a basic description for the standard Cygnus simulator.
  26 load_base_board_description "basic-sim"
  27
  28 # The name of the simulator is "pru".
  29 setup_sim pru
  30
  31 # No multilib flags needed by default.
  32 process_multilib_options ""
  33
  34 # The compiler used to build for this board. This has *nothing* to do
  35 # with what compiler is tested if we're testing gcc.
  36 set_board_info compiler  "[find_gcc]"
  37
  38 # PRU arguments are mostly passed in registers. But GCC regression tests
  39 # are written with other machines in mind, so the builtin_apply's
  40 # aruments stack size is non-zero. On top of that, the stack top for
  41 # PRU's main is very close to the end of SRAM. Close enough that the
  42 # spurious "stack copy" reads outside of the DRAM area, causing a
  43 # simulator abort. For example, see how builtin-apply-3.c copies 16
  44 # bytes from the arguments stack, while PRU has passed all of its
  45 # arguments in registers.
  46 #
  47 # Temporary solution is to add a few bytes of "guard" space, so that
  48 # existing GCC testcases can be executed successfully. Hence set the
  49 # stack top a few bytes below the simulator's DRAM end.
  50 set workaround_ldflags "-Wl,--defsym=_stack_top=0x3fff800"
  51
  52 set_board_info cflags  "-mmcu=sim [libgloss_include_flags] [newlib_include_flags]"
  53 set_board_info ldflags  "[libgloss_link_flags] [newlib_link_flags] $workaround_ldflags"
  54
  55 # No support for signals on this target.
  56 set_board_info gdb,nosignals 1
  57
  58 # Low-end workstations might require even larger timeouts.
  59 set timeout 120