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https://github.com/espressif/binutils-gdb.git
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57b7402d20
This changes skip_fortran_tests to invert the sense, and renames it to allow_fortran_tests.
109 lines
3.7 KiB
Plaintext
109 lines
3.7 KiB
Plaintext
# Copyright 2020-2023 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/> .
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# Test calling Fortran functions that are compiled without debug
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# information.
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require allow_fortran_tests
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standard_testfile call-no-debug-prog.f90 call-no-debug-func.f90
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load_lib fortran.exp
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if {[prepare_for_testing_full "failed to prepare" \
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[list ${binfile} [list debug f90] \
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$srcfile [list debug f90] \
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$srcfile2 [list nodebug f90]]]} {
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return -1
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}
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# Find a possibly mangled version of NAME, a function we want to call
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# that has no debug information available. We hope that the mangled
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# version of NAME contains the pattern NAME, and so we use 'info
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# functions' to find a possible suitable symbol.
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#
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# If no suitable function is found then return the empty string.
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proc find_mangled_name { name } {
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global hex gdb_prompt
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set into_non_debug_symbols false
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set symbol_name "*unknown*"
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gdb_test_multiple "info function $name" "" {
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-re ".*Non-debugging symbols:\r\n" {
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set into_non_debug_symbols true
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exp_continue
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}
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-re "$hex.*\[ \t\]+(\[^\r\n\]+)\r\n" {
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set symbol_name $expect_out(1,string)
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exp_continue
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}
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-re "^$gdb_prompt $" {
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# Done.
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}
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}
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# If we couldn't find a suitable symbol name return the empty
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# string.
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if { $symbol_name == "*unknown*" } {
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return ""
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}
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return $symbol_name
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}
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# Sample before before starting the exec, in order to avoid picking up symbols
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# from shared libs.
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set some_func [find_mangled_name "some_func"]
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set string_func [find_mangled_name "string_func"]
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if ![fortran_runto_main] {
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return -1
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}
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# Call the function SOME_FUNC, that takes a single integer and returns
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# an integer. As the function has no debug information then we have
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# to pass the integer argument as '&1' so that GDB will send the
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# address of an integer '1' (as Fortran arguments are pass by
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# reference).
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set symbol_name $some_func
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if { $symbol_name == "" } {
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untested "couldn't find suitable name for 'some_func'"
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} else {
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gdb_test "ptype ${symbol_name}" "type = <unknown return type> \\(\\)"
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gdb_test "print ${symbol_name} (&1)" \
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"'${symbol_name}' has unknown return type; cast the call to its declared return type"
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gdb_test "print (integer) ${symbol_name} (&1)" " = 2"
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}
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# Call the function STRING_FUNC which takes an assumed shape character
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# array (i.e. a string), and returns an integer.
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#
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# At least for gfortran, passing the string will pass both the data
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# pointer and an artificial argument, the length of the string.
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#
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# The compiled program is expecting the address of the string, so we
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# prefix that argument with '&', but the artificial length parameter
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# is pass by value, so there's no need for '&' in that case.
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set symbol_name $string_func
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if { $symbol_name == "" } {
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untested "couldn't find suitable name for 'string_func'"
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} else {
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gdb_test "ptype ${symbol_name}" "type = <unknown return type> \\(\\)"
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gdb_test "print ${symbol_name} (&'abcdefg', 3)" \
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"'${symbol_name}' has unknown return type; cast the call to its declared return type"
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gdb_test_stdio "call (integer) ${symbol_name} (&'abcdefg', 3)" \
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" abc" \
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"\\\$\\d+ = 0"
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}
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