forked from Imagelibrary/binutils-gdb
4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
109 lines
3.7 KiB
Plaintext
109 lines
3.7 KiB
Plaintext
# Copyright 2020-2022 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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if {[skip_fortran_tests]} { return -1 }
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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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