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      1 # Copyright 2021-2024 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 # Testing GDB's implementation of ASSUMED RANK arrays.
     17 
     18 require allow_fortran_tests
     19 
     20 standard_testfile ".f90"
     21 load_lib fortran.exp
     22 
     23 # Only gcc version >=11 supports assumed rank arrays.
     24 if { [test_compiler_info {gfortran-*} f90] &&
     25      ![test_compiler_info {gfortran-1[1-9]-*} f90] } {
     26     untested "compiler does not support assumed rank"
     27     return -1
     28 }
     29 
     30 if {[prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} \
     31 	 {debug f90 additional_flags=-gdwarf-5}]} {
     32     return -1
     33 }
     34 
     35 if ![fortran_runto_main] {
     36     untested "could not run to main"
     37     return -1
     38 }
     39 
     40 gdb_breakpoint [gdb_get_line_number "Test Breakpoint"]
     41 gdb_breakpoint [gdb_get_line_number "Final Breakpoint"]
     42 
     43 # We place a limit on the number of tests that can be run, just in
     44 # case something goes wrong, and GDB gets stuck in an loop here.
     45 set found_final_breakpoint false
     46 set test_count 0
     47 while { $test_count < 500 } {
     48     with_test_prefix "test $test_count" {
     49 	incr test_count
     50 
     51 	gdb_test_multiple "continue" "continue" {
     52 	    -re -wrap "! Test Breakpoint" {
     53 		# We can run a test from here.
     54 	    }
     55 	    -re "! Final Breakpoint" {
     56 		# We're done with the tests.
     57 		set found_final_breakpoint true
     58 	    }
     59 	}
     60 
     61 	# Currently, flang does not support rank0.
     62 	if { $test_count == 1 && [test_compiler_info {flang-*} f90] } {
     63 	   unsupported "compiler does not support rank 0"
     64 	   continue
     65 	}
     66 
     67 	if ($found_final_breakpoint) {
     68 	    break
     69 	}
     70 
     71 	# First grab the information from the assumed rank array.
     72 	set answer_rank [get_valueof "" "rank(answer)" "**unknown**"]
     73 	set answer_content [get_valueof "" "answer" "**unknown**"]
     74 
     75 	# Now move up a frame and find the name of a non-assumed rank array
     76 	# which we can use to check the values we got above.
     77 	set test_array ""
     78 	gdb_test_multiple "up" "" {
     79 	    -re -wrap "\r\n\[0-9\]+\[ \t\]+call test_rank \\((\[^\r\n\]+)\\)" {
     80 		set test_array $expect_out(1,string)
     81 	    }
     82 	}
     83 	gdb_assert { ![string equal $test_array ""] } \
     84 	    "found the name of a test array to check against"
     85 
     86 	# Check we got the correct array rank.
     87 	gdb_test "p rank($test_array)" " = $answer_rank"
     88 
     89 	# Check we got the correct array content.
     90 	set content [get_valueof "" "$test_array" "**unknown**"]
     91 	gdb_assert { [string equal $content $answer_content] } \
     92 	    "answer array contains the expected contents"
     93     }
     94 }
     95 
     96 # Ensure we reached the final breakpoint.  If more tests have been added
     97 # to the test script, and this starts failing, then the safety 'while'
     98 # loop above might need to be increased.
     99 gdb_assert {$found_final_breakpoint} "ran all compiled in tests"
    100