213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
175 lines
6.2 KiB
Text
175 lines
6.2 KiB
Text
# Copyright 2019-2023 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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# Further testing of placing breakpoints in nested subroutines.
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if {[skip_fortran_tests]} { return -1 }
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load_lib "fortran.exp"
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standard_testfile ".f90"
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if {[build_executable ${testfile}.exp ${testfile} \
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${srcfile} {debug f90}]} {
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return -1
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}
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set int4 [fortran_int4]
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# When WITH_SRC_PREFIX_P is true then some symbol references will be
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# prefixed with the filename. When WITH_NEST_PREFIX_P is true then
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# nested subroutine symbols will be prefixed with their parent
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# subroutine scope.
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proc do_bp_tests {with_src_prefix_p with_nest_prefix_p} {
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global testfile srcfile
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global int4
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global hex
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clean_restart ${testfile}
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if { $with_src_prefix_p } {
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set src_prefix "${srcfile}:"
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} else {
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set src_prefix ""
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}
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if { $with_nest_prefix_p } {
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set nest_prefix "contains_keyword::"
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} else {
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set nest_prefix ""
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}
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# Normally, info symbol prints the symbol table name for any fortran
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# symbols (since symbol lookup happens via the minimal symbol
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# table). This would correspond to the linkage name in the full symbol
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# table.
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# For gfortran (and maybe others) these names currently have the form
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# XXXX.NUMBER where XXXX is the symbol name and NUMBER a compiler generated
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# appendix for mangling. This mangled name gets recognized by the Ada
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# demangler/decoder and decoded as Ada (setting the symbol language to Ada)
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# to XXXX. This leads to the somewhat unexpected output of XXXX over
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# XXXX.NUMBER for info symbol.
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# For ifort and ifx the generated linkage names have the form
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# SCOPEA_SCOPEB_XXXX_ which is not recognized by the Ada demangler and thus
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# printed as is.
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# Note that there is no Fortran mangling standard. We keep the
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# gfortran behavior as is and extend the test to reflect ifx and ifort
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# mangling.
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proc get_linkage_name_pattern {symbol_name} {
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if { [test_compiler_info {ifort-*} f90]
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|| [test_compiler_info {ifx-*} f90] } {
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return "\(?:.*_\)?${symbol_name}_?"
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} else {
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return ${symbol_name}
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}
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}
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# Test setting up breakpoints and otherwise examining nested
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# functions before the program starts.
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with_test_prefix "before start" {
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foreach entry \
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[list \
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[list "increment" "${int4} \\\(${int4}\\\)"] \
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[list "increment_program_global" "${int4} \\\(void\\\)"] \
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[list "hidden_variable" "void \\\(void\\\)"]] {
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set function [lindex $entry 0]
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set type [lindex $entry 1]
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# Currently referencing symbols using 'info',
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# 'whatis' and 'ptype' before the program is
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# started doesn't work. This is the same
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# behaviour we see in C++ so I don't think this
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# is a failure, just a limitation in current GDB.
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if { ${with_nest_prefix_p} } {
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gdb_test "info symbol ${nest_prefix}${function}" \
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"[get_linkage_name_pattern ${function}] in section .*"
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gdb_test "whatis ${nest_prefix}${function}" \
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"type = ${type}"
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gdb_test "ptype ${nest_prefix}${function}" \
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"type = ${type}"
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gdb_test "print ${nest_prefix}${function}" \
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"{${type}} $hex <contains_keyword::${function}>"
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}
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gdb_breakpoint "${src_prefix}${nest_prefix}${function}"
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}
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}
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# Break on a contained function and run to it.
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if {![runto ${src_prefix}[gdb_get_line_number "pre_init"]]} {
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return
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}
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# Call a contained function.
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if { ${with_nest_prefix_p} } {
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gdb_test_stdio "call ${nest_prefix}subroutine_to_call()" " called" ""
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}
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# Break on another contained function and run to it.
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gdb_breakpoint "${src_prefix}${nest_prefix}increment"
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gdb_continue_to_breakpoint "increment" ".*increment = i \\\+ 1"
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gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_increment"]
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gdb_continue_to_breakpoint "post_increment"
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# Check arguments and locals report the correct values. 12 is
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# passed in and 13 is the result after adding 1.
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gdb_test "info args" "i = 12"
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gdb_test "info locals" " = 13"
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# Check we can see variables from an outer program scope.
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gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_increment_global"]
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gdb_continue_to_breakpoint "post_increment_global" \
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".*print \\\*, program_i ! post_increment_global"
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gdb_test "info args" "No arguments." \
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"no argument subroutine has no arguments"
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gdb_test "p program_i" " = 7" "printing outer scoped variable"
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# Stepping into a contained subroutine.
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gdb_breakpoint ${src_prefix}[gdb_get_line_number "pre_step"]
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gdb_continue_to_breakpoint "pre_step" ".*call step\\\(\\\) ! pre_step"
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gdb_test "step" \
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".*print '\\\(A\\\)', \\\"step\\\" ! post_step" \
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"step into the correct place"
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# Local hides program global.
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gdb_breakpoint ${src_prefix}[gdb_get_line_number "post_hidden"]
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gdb_continue_to_breakpoint "post_hidden" \
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".*print \\\*, program_i ! post_hidden"
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gdb_test "p program_i" " = 30" "printing hidden global"
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# Check info symbol, whatis and ptype can find information on
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# these nested functions.
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foreach entry \
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[list \
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[list "increment" "${int4} \\\(${int4}\\\)"] \
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[list "increment_program_global" "${int4} \\\(void\\\)"]] {
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set function [lindex $entry 0]
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set type [lindex $entry 1]
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with_test_prefix $function {
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gdb_test "info symbol ${nest_prefix}$function" \
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"[get_linkage_name_pattern $function] in section .*"
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gdb_test "whatis ${nest_prefix}$function" \
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"type = ${type}"
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gdb_test "ptype ${nest_prefix}$function" \
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"type = ${type}"
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}
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}
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}
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foreach_with_prefix src_prefix { 0 1 } {
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foreach_with_prefix nest_prefix { 0 1 } {
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do_bp_tests ${src_prefix} ${nest_prefix}
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}
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}
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