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# Copyright 2011-2020 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/>.
# The same tests as in jit.exp, but loading JITer itself from a shared
# library.
if {[skip_shlib_tests]} {
untested "skipping shared library tests"
return -1
}
if {[get_compiler_info]} {
untested "could not get compiler info"
return 1
}
load_lib jit-elf-helpers.exp
# Increase this to see more detail.
set test_verbose 0
# The "real" main of this test, which loads jit-elf-main
# as a shared library.
set main_loader_basename jit-elf-dlmain
set main_loader_srcfile ${srcdir}/${subdir}/${main_loader_basename}.c
set main_loader_binfile [standard_output_file ${main_loader_basename}]
# The main code that loads and registers JIT objects.
set main_solib_basename jit-elf-main
set main_solib_srcfile ${srcdir}/${subdir}/${main_solib_basename}.c
set main_solib_binfile [standard_output_file ${main_solib_basename}.so]
# The shared library that gets loaded as JIT objects.
set jit_solib_basename jit-elf-solib
set jit_solib_srcfile ${srcdir}/${subdir}/${jit_solib_basename}.c
# Compile the testcase shared library loader.
#
# OPTIONS is passed to gdb_compile when compiling the binary.
#
# On success, return 0.
# On failure, return -1.
proc compile_jit_dlmain {options} {
global main_loader_srcfile main_loader_binfile
set options [concat $options debug]
if { [gdb_compile ${main_loader_srcfile} ${main_loader_binfile} \
executable $options] != "" } {
untested "failed to compile ${main_loader_basename}.c as an executable"
return -1
}
return 0
}
# Run $main_loader_binfile and load $main_solib_binfile in
# GDB. Check jit-related debug output and matches `info function`
# output for a jit loaded function using MATCH_STR.
#
# SOLIB_BINFILES_TARGETS is a list of shared libraries to pass
# as arguments when running $main_loader_binfile.
# MATCH_STR is a regular expression that output of `info function`
# must match.
proc one_jit_test {solib_binfiles_target match_str} {
set count [llength $solib_binfiles_target]
with_test_prefix "one_jit_test-$count" {
global test_verbose
global main_loader_binfile main_loader_srcfile
global main_solib_binfile main_solib_srcfile
clean_restart $main_loader_binfile
gdb_load_shlib $main_solib_binfile
# This is just to help debugging when things fail
if {$test_verbose > 0} {
gdb_test "set debug jit 1"
}
if { ![runto_main] } {
fail "can't run to main"
return
}
gdb_breakpoint [gdb_get_line_number "break here before-dlopen" \
$main_loader_srcfile]
gdb_continue_to_breakpoint "break here before-dlopen"
gdb_test_no_output "set var jit_libname = \"$main_solib_binfile\"" \
"setting library name"
gdb_breakpoint [gdb_get_line_number "break here after-dlopen" \
$main_loader_srcfile]
gdb_continue_to_breakpoint "break here after-dlopen"
set line [gdb_get_line_number {break here 0} $main_solib_srcfile]
gdb_breakpoint "$main_solib_srcfile:$line"
gdb_continue_to_breakpoint "break here 0"
# Poke desired values directly into inferior instead of using "set args"
# because "set args" does not work under gdbserver.
gdb_test_no_output "set var argc=[expr $count + 1]" "forging argc"
gdb_test_no_output "set var argv=fake_argv" "forging argv"
for {set i 1} {$i <= $count} {incr i} {
set binfile_target [lindex $solib_binfiles_target [expr $i-1]]
gdb_test_no_output "set var argv\[$i\]=\"${binfile_target}\"" \
"forging argv\[$i\]"
}
set line [gdb_get_line_number {break here 1} $main_solib_srcfile]
gdb_breakpoint "$main_solib_srcfile:$line"
gdb_continue_to_breakpoint "break here 1"
gdb_test "info function jit_function" "$match_str"
# This is just to help debugging when things fail
if {$test_verbose > 0} {
gdb_test "maintenance print objfiles"
gdb_test "maintenance info break"
}
set line [gdb_get_line_number {break here 2} $main_solib_srcfile]
gdb_breakpoint "$main_solib_srcfile:$line"
gdb_continue_to_breakpoint "break here 2"
# All jit librares must have been unregistered
gdb_test "info function jit_function" \
"All functions matching regular expression \"jit_function\":" \
"info function jit_function after unregistration"
}
}
# Compile the main code (which loads the JIT objects) as a shared library.
if { [compile_jit_elf_main_as_so $main_solib_srcfile $main_solib_binfile \
{additional_flags="-DMAIN=jit_dl_main"}] < 0 } {
return
}
# Compile the "real" main for this test.
if { [compile_jit_dlmain {shlib_load}] < 0 } {
return
}
# Compile two shared libraries to use as JIT objects.
set jit_solibs_target [compile_and_download_n_jit_so \
$jit_solib_basename $jit_solib_srcfile 2]
if { $jit_solibs_target == -1 } {
return
}
one_jit_test [lindex $jit_solibs_target 0] "${hex} jit_function_0001"
one_jit_test $jit_solibs_target "${hex} jit_function_0001\[\r\n\]+${hex} jit_function_0002"
foreach solib $jit_solibs_target {
# We don't intend to load the .so as a JIT debuginfo reader, but we
# need some handy file name for a completion test.
set input [string range $solib 0 [expr { [string length $solib] - 2 }]]
gdb_test \
"complete jit-reader-load [standard_output_file $input]" \
"jit-reader-load $solib" \
"test jit-reader-load filename completion [file tail $solib]"
}
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