testsuite/gdb.python/py-section-script.exp

# Copyright (C) 2010-2020 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file is part of the GDB testsuite.  It tests automagic loading of
# scripts specified in the .debug_gdb_scripts section.

# This test can only be run on targets which support ELF and use gas.
# For now pick a sampling of likely targets.
if {![istarget *-*-linux*]
    && ![istarget *-*-gnu*]
    && ![istarget *-*-elf*]
    && ![istarget *-*-openbsd*]
    && ![istarget arm*-*-eabi*]
    && ![istarget arm*-*-symbianelf*]
    && ![istarget powerpc-*-eabi*]} {
    verbose "Skipping py-section-script.exp because of lack of support."
    return
}

standard_testfile

# Make this available to gdb before the program starts, it is
# automagically loaded by gdb.
set remote_python_file [gdb_remote_download host \
			    ${srcdir}/${subdir}/${testfile}.py]

set quoted_name "\"$remote_python_file\""

if {[build_executable $testfile.exp $testfile $srcfile \
	 [list debug \
	      additional_flags=-I${srcdir}/../../include \
	      additional_flags=-DSCRIPT_FILE=$quoted_name]] == -1} {
    return -1
}

# Start with a fresh gdb.
gdb_exit
gdb_start

# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }

gdb_reinitialize_dir $srcdir/$subdir

# Try first with a restrictive safe-path.

gdb_test_no_output "set auto-load safe-path /restricted" \
    "set restricted auto-load safe-path"
gdb_load ${binfile}

# Verify gdb did not load the scripts.
set test_name "verify scripts not loaded"
gdb_test_multiple "info auto-load python-scripts" "$test_name" {
    -re "Yes.*${testfile}.py.*Yes.*inlined-script.*$gdb_prompt $" {
	fail "$test_name"
    }
    -re "No.*${testfile}.py.*No.*inlined-script.*$gdb_prompt $" {
	pass "$test_name"
    }
}

# Try again with a working safe-path.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

# Get the name of the binfile on the host; on a remote host this means
# stripping off any directory prefix.
if [is_remote host] {
    set remote_binfile [file tail ${binfile}]
} else {
    set remote_binfile ${binfile}
}

if [ishost *-*-mingw*] {
    set remote_pathsep ";"
} else {
    set remote_pathsep ":"
}
gdb_test_no_output "set auto-load safe-path ${remote_python_file}${remote_pathsep}${remote_binfile}" \
    "set auto-load safe-path"
gdb_load ${binfile}

# Verify gdb loaded each script and they appear once in the list.
set test_name "verify scripts loaded"
gdb_test_multiple "info auto-load python-scripts" "$test_name" {
    -re "Yes.*${testfile}.py.*Yes.*inlined-script.*$gdb_prompt $" {
	pass "$test_name"
    }
    -re "${testfile}.py.*${testfile}.py.*$gdb_prompt $" {
	fail "$test_name"
    }
    -re "inlined-script.*inlined-script.*$gdb_prompt $" {
	fail "$test_name"
    }
}

# Again, with a regexp this time.
gdb_test "info auto-load python-scripts ${testfile}" "Yes.*${testfile}.py.*"

# Again, with a regexp that matches no scripts.
gdb_test "info auto-load python-scripts no-script-matches-this" \
  "No auto-load scripts matching no-script-matches-this."

if ![runto_main] {
    perror "couldn't run to main"
    return
}

gdb_test "b [gdb_get_line_number {break to inspect} ${testfile}.c ]" \
    ".*Breakpoint.*"
gdb_test "continue" ".*Breakpoint.*"

gdb_test "print ss" " = a=<1> b=<2>"

gdb_test "test-cmd 1 2 3" "test-cmd output, arg = 1 2 3"


# eu-strip creates NOBITS .debug_gdb_scripts sections in the debug files.
# Make sure those are ignored silently.

with_test_prefix "sepdebug" {
    gdb_exit

    set result [catch "exec eu-strip -g -f ${binfile}.debug ${binfile}" output]
    verbose "result is $result"
    verbose "output is $output"
    if {$result != 0 || $output != ""} {
	unsupported "cannot produce separate debug info files"
	return
    }

    gdb_start
    gdb_reinitialize_dir $srcdir/$subdir

    gdb_test_no_output "set auto-load safe-path ${remote_python_file}:${binfile}" \
	"set auto-load safe-path"
    set test "load sepdebug"
    gdb_test_multiple "file $binfile" $test {
	-re "\r\nwarning: Invalid entry in \\.debug_gdb_scripts section.*\r\n$gdb_prompt $" {
	    fail $test
	}
	-re "\r\n$gdb_prompt $" {
	    pass $test
	}
    }

    # Again, with a regexp this time.
    gdb_test "info auto-load python-scripts ${testfile}" "Yes.*${testfile}.py.*"

    # Again, with a regexp that matches no scripts.
    gdb_test "info auto-load python-scripts no-script-matches-this" \
      "No auto-load scripts matching no-script-matches-this."
}