gdb/testsuite/gdb.arch/aarch64-sme-sanity.exp

   1 # Copyright (C) 2023-2024 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 #
  16 # Sanity check for AArch64 Scalable Vector/Matrix Extensions functionality.
  17
  18 load_lib aarch64-scalable.exp
  19
  20 #
  21 # Run a series of basic checks for SVE/SME states.
  22 #
  23 proc sanity_check { vl svl } {
  24     # Run the program until the point where we start initializing the different
  25     # register states.
  26     set state_breakpoint "stop here"
  27     gdb_breakpoint [gdb_get_line_number $state_breakpoint]
  28
  29     for {set id 0} {$id < 5} {incr id} {
  30         set state [state_id_to_state_string $id]
  31
  32         with_test_prefix "state=${state} vl=${vl} svl=${svl}" {
  33             gdb_continue_to_breakpoint $state_breakpoint
  34             check_state $state $vl $svl
  35         }
  36     }
  37 }
  38
  39 require is_aarch64_target
  40 require allow_aarch64_sve_tests
  41 require allow_aarch64_sme_tests
  42
  43 # Remote targets can't communicate vector length (vl or svl) changes
  44 # to GDB via the RSP.
  45 require !gdb_protocol_is_remote
  46
  47 set compile_flags {"debug" "macros" "additional_flags=-march=armv8.5-a+sve"}
  48 standard_testfile
  49 if {[prepare_for_testing "failed to prepare" ${testfile} ${srcfile} ${compile_flags}]} {
  50     return -1
  51 }
  52
  53 if {![runto_main]} {
  54     return -1
  55 }
  56
  57 # Adjust the repeat count for the test.
  58 gdb_test_no_output "set print repeats 1" "adjust repeat count"
  59
  60 # Fetch both the vector length and the streaming vector length the target
  61 # system is using.  We do not force any vector lengths and do not change
  62 # it mid-execution.
  63 set vl [expr [get_valueof "" "\$vg" "0" "fetch value of vl"] * 8]
  64 set svl [expr [get_valueof "" "\$svg" "0" "fetch value of svl"] * 8]
  65
  66 # Now we are at the point where we can start checking state and moving the
  67 # testcase forward.
  68 sanity_check $vl $svl