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# Copyright (C) 2009, 2010 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 GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# Contributed by Diego Novillo <dnovillo@google.com>
# Prune messages that aren't useful.
proc lto_prune_warns { text } {
verbose "lto_prune_warns: entry: $text" 2
# Many tests that use visibility will still pass on platforms that don't support it.
regsub -all "(^|\n)\[^\n\]*: warning: visibility attribute not supported in this configuration; ignored\[^\n\]*" $text "" text
# Allow mixed-language LTO tests to pass with make check-c++0x
regsub -all "(^|\n)\[^\n\]*: warning: command line option '-std=\[^\n\]*" $text "" text
# And any stray location lines.
regsub -all "(^|\n)\[^\n\]*: In function \[^\n\]*" $text "" text
regsub -all "(^|\n)In file included from \[^\n\]*" $text "" text
regsub -all "(^|\n)\[ \t\]*from \[^\n\]*" $text "" text
# Sun ld warns about common symbols with differing sizes. Unlike GNU ld
# --warn-common (off by default), they cannot be disabled.
regsub -all "(^|\n)ld: warning: symbol \[`'\]\[^\n\]*' has differing sizes:" $text "" text
regsub -all "(^|\n)\[ \t\]*\[\(\]file \[^\n\]* value=\[^\n\]*; file \[^\n\]* value=\[^\n\]*\[)\];" $text "" text
regsub -all "(^|\n)\[ \t\]*\[^\n\]* definition taken" $text "" text
verbose "lto_prune_warns: exit: $text" 2
return $text
}
# lto_init -- called at the start of each subdir of tests
proc lto_init { args } {
global LTO_OPTIONS
if {[info exists args] && $args == "no-mathlib"} {
global board_info
global saved_mathlib
set dest [target_info name]
if [board_info $dest exists mathlib] {
set saved_mathlib [board_info $dest mathlib]
}
set board_info($dest,mathlib) " "
}
# Each test is run with the compiler options from this list.
# The default option lists can be overridden by LTO_OPTIONS="[list
# {opts_1} {opts_2}... {opts_n}]" where opts_i are lists of options.
# You can put this in the environment before site.exp is written or
# add it to site.exp directly.
if ![info exists LTO_OPTIONS] {
if [check_linker_plugin_available] {
set LTO_OPTIONS [list \
{-O0 -flto -flto-partition=none -fuse-linker-plugin} \
{-O2 -flto -flto-partition=none -fuse-linker-plugin -fno-fat-lto-objects } \
{-O0 -flto -flto-partition=1to1 -fno-use-linker-plugin } \
{-O2 -flto -flto-partition=1to1 -fno-use-linker-plugin } \
{-O0 -flto -fuse-linker-plugin -fno-fat-lto-objects } \
{-O2 -flto -fuse-linker-plugin} \
]
} else {
set LTO_OPTIONS [list \
{-O0 -flto -flto-partition=none } \
{-O2 -flto -flto-partition=none } \
{-O0 -flto -flto-partition=1to1 } \
{-O2 -flto -flto-partition=1to1 } \
{-O0 -flto } \
{-O2 -flto} \
]
}
}
}
#
# lto_finish -- called at the end of each subdir of tests if mathlib is
# changed.
#
proc lto_finish { } {
global board_info
global saved_mathlib
set dest [target_info name]
if [info exists saved_mathlib] {
set board_info($dest,mathlib) $saved_mathlib
} elseif [board_info $dest exists mathlib] {
unset board_info($dest,mathlib)
}
}
# Subsets of tests can be selectively disabled by members of this list:
# - ATTRIBUTE: disable all tests using the __attribute__ extension,
# - COMPLEX: disable all tests using the complex types feature,
# - COMPLEX_INT: disable all tests using the complex integral types extension,
# - VA: disable all tests using the variable number of arguments feature,
# - VLA_IN_STRUCT: disable all tests using the variable-length arrays as
# structure members extension,
# - ZERO_ARRAY: disable all tests using the zero-sized arrays extension.
# The default skip lists can be overriden by
# LTO_SKIPS="[list {skip_1}...{skip_n}]"
# where skip_i are skip identifiers. You can put this in the environment
# before site.exp is written or add it to site.exp directly.
if ![info exists LTO_SKIPS] {
set LTO_SKIPS [list {}]
}
global lto_skip_list
set lto_skip_list $LTO_SKIPS
load_lib dg.exp
load_lib gcc-dg.exp
load_lib gcc.exp
# lto-obj -- compile to an object file
#
# SOURCE is the source file
# DEST is the object file
# OPTALL is the list of compiler options to use with all tests
# OPTFILE is the list of compiler options to use with this file
# OPTSTR is the options to print with test messages
# XFAILDATA is the xfail data to be passed to the compiler
proc lto-obj { source dest optall optfile optstr xfaildata } {
global testcase
global tool
global compiler_conditional_xfail_data
global lto_skip_list
# Add the skip specifiers.
foreach skip $lto_skip_list {
if { ![string match $skip ""] } {
lappend optall "-DSKIP_$skip"
}
}
# Set up the options for compiling this file.
set options ""
lappend options "additional_flags=$optall $optfile"
set compiler_conditional_xfail_data $xfaildata
# Allow C source files to mix freely with other languages
if [ string match "*.c" $source ] then {
set comp_output [gcc_target_compile "$source" "$dest" object $options]
} else {
set comp_output [${tool}_target_compile "$source" "$dest" object $options]
}
# Prune unimportant visibility warnings before checking output.
set comp_output [lto_prune_warns $comp_output]
${tool}_check_compile "$testcase $dest assemble" $optstr $dest $comp_output
}
# lto-link-and-maybe-run -- link the object files and run the executable
# if compile_type is set to "run"
#
# TESTNAME is the mixture of object files to link
# OBJLIST is the list of object files to link
# DEST is the name of the executable
# OPTALL is a list of compiler and linker options to use for all tests
# OPTFILE is a list of compiler and linker options to use for this test
# OPTSTR is the list of options to list in messages
proc lto-link-and-maybe-run { testname objlist dest optall optfile optstr } {
global testcase
global tool
global compile_type
global board_info
# Check that all of the objects were built successfully.
foreach obj [split $objlist] {
if ![file_on_host exists $obj] then {
unresolved "$testcase $testname link $optstr"
unresolved "$testcase $testname execute $optstr"
return
}
}
# Set up the options for linking this test.
set options ""
lappend options "additional_flags=$optall $optfile"
set target_board [target_info name]
set relocatable 0
# Some LTO tests do relocatable linking. Some target boards set
# a linker script which can't be used for relocatable linking.
# Use the default linker script instead.
if { [lsearch -exact [split "$optall $optfile"] "-r"] >= 0 } {
set relocatable 1
}
if { $relocatable } {
set saved_ldscript [board_info $target_board ldscript]
set board_info($target_board,ldscript) ""
}
# Link the objects into an executable.
set comp_output [${tool}_target_compile "$objlist" $dest executable \
"$options"]
if { $relocatable } {
set board_info($target_board,ldscript) $saved_ldscript
}
# Prune unimportant visibility warnings before checking output.
set comp_output [lto_prune_warns $comp_output]
if ![${tool}_check_compile "$testcase $testname link" $optstr \
$dest $comp_output] then {
unresolved "$testcase $testname execute $optstr"
return
}
# Return if we only needed to link.
if { ![string compare "link" $compile_type] } {
return
}
# Run the self-checking executable.
if ![string match "*/*" $dest] then {
set dest "./$dest"
}
set result [${tool}_load $dest "" ""]
set status [lindex $result 0]
if { $status == "pass" } then {
file_on_host delete $dest
}
$status "$testcase $testname execute $optstr"
}
# lto-get-options-main -- get target requirements for a test and
# options for the primary source file and the test as a whole
#
# SRC is the full pathname of the primary source file.
proc lto-get-options-main { src } {
global compile_type
global dg-extra-ld-options
global dg-suppress-ld-options
set dg-extra-ld-options ""
set dg-suppress-ld-options ""
# dg-options sets a variable called dg-extra-tool-flags.
set dg-extra-tool-flags ""
# dg-options sets a variable called tool_flags.
set tool_flags ""
# dg-require-* sets dg-do-what.
upvar dg-do-what dg-do-what
upvar dg-final-code dg-final-code
set dg-final-code ""
set tmp [dg-get-options $src]
verbose "getting options for $src: $tmp"
foreach op $tmp {
set cmd [lindex $op 0]
verbose "cmd is $cmd"
if { [string match "dg-skip-if" $cmd] \
|| [string match "dg-require-*" $cmd] } {
set status [catch "$op" errmsg]
if { $status != 0 } {
perror "src: $errmsg for \"$op\"\n"
unresolved "$src: $errmsg for \"$op\""
return
}
} elseif { [string match "dg-lto-options" $cmd] } {
set op [lreplace $op 0 0 "dg-options"]
set status [catch "$op" errmsg]
if { $status != 0 } {
perror "src: $errmsg for \"$op\"\n"
unresolved "$src: $errmsg for \"$op\""
return
}
} elseif { ![string compare "dg-xfail-if" $cmd] \
|| ![string compare "dg-options" $cmd] } {
warning "lto.exp does not support $cmd in primary source file"
} elseif { ![string compare "dg-lto-do" $cmd] } {
if { [llength $op] > 3 } {
set kw [lindex [lindex $op 3] 0]
if [string match "target" $kw] {
perror "$src: dg-lto-do does not support \"target\""
} elseif [string match "xfail" $kw] {
perror "$src: dg-lto-do does not support \"xfail\""
} else {
perror "$src: dg-lto-do takes a single argument"
}
}
set dgdo [lindex $op 2]
verbose "dg-lto-do command for \"$op\" is $dgdo"
if { ![string compare "assemble" $dgdo] } {
set compile_type "assemble"
} elseif { ![string compare "run" $dgdo] } {
set compile_type "run"
} elseif { ![string compare "link" $dgdo] } {
set compile_type "link"
} else {
warning "lto.exp does not support dg-lto-do $dgdo"
}
} elseif { ![string compare "dg-extra-ld-options" $cmd] } {
if { [llength $op] > 4 } {
error "[lindex $op 0]: too many arguments"
} else {
if { [llength $op] == 3
|| ([llength $op] > 3
&& [dg-process-target [lindex $op 3]] == "S") } {
set dg-extra-ld-options [lindex $op 2]
verbose \
"dg-extra-ld-options for main is ${dg-extra-ld-options}"
}
}
} elseif { ![string compare "dg-suppress-ld-options" $cmd] } {
if { [llength $op] > 4 } {
error "[lindex $op 0]: too many arguments"
} else {
if { [llength $op] == 3
|| ([llength $op] > 3
&& [dg-process-target [lindex $op 3]] == "S") } {
set dg-suppress-ld-options [lindex $op 2]
verbose \
"dg-suppress-ld-options for main is ${dg-suppress-ld-options}"
}
}
} elseif { ![string compare "dg-final" $cmd] } {
if { [llength $op] > 3 } {
error "[lindex $op 0]: too many arguments"
} else {
append dg-final-code "[lindex $op 2]\n"
}
} else {
# Ignore unrecognized dg- commands, but warn about them.
warning "lto.exp does not support $cmd"
}
}
# Return flags to use for compiling the primary source file and for
# linking.
verbose "dg-extra-tool-flags for main is ${dg-extra-tool-flags}"
return ${dg-extra-tool-flags}
}
# lto-get-options -- get special tool flags to use for a secondary
# source file
#
# SRC is the full pathname of the source file.
# The result is a list of options to use.
#
# This code is copied from proc dg-test in dg.exp from DejaGNU.
proc lto-get-options { src } {
# dg-options sets a variable called dg-extra-tool-flags.
set dg-extra-tool-flags ""
# dg-xfail-if sets compiler_conditional_xfail_data.
global compiler_conditional_xfail_data
set compiler_conditional_xfail_data ""
# dg-xfail-if needs access to dg-do-what.
upvar dg-do-what dg-do-what
set tmp [dg-get-options $src]
foreach op $tmp {
set cmd [lindex $op 0]
if { ![string compare "dg-options" $cmd] \
|| ![string compare "dg-xfail-if" $cmd] } {
set status [catch "$op" errmsg]
if { $status != 0 } {
perror "src: $errmsg for \"$op\"\n"
unresolved "$src: $errmsg for \"$op\""
return
}
} elseif { [string match "dg-require-*" $cmd] } {
warning "lto.exp does not support $cmd in secondary source files"
} else {
# Ignore unrecognized dg- commands, but warn about them.
warning "lto.exp does not support $cmd in secondary source files"
}
}
return ${dg-extra-tool-flags}
}
# lto-execute -- compile multi-file tests
#
# SRC1 is the full pathname of the main file of the testcase.
# SID identifies a test suite in the names of temporary files.
proc lto-execute { src1 sid } {
global srcdir tmpdir
global lto_option_list
global tool
global verbose
global testcase
global gluefile
global compiler_conditional_xfail_data
global dg-do-what-default
global compile_type
global dg-extra-ld-options
global dg-suppress-ld-options
global LTO_OPTIONS
global dg-final-code
# Get extra flags for this test from the primary source file, and
# process other dg-* options that this suite supports. Warn about
# unsupported flags.
verbose "lto-execute: $src1" 1
set compile_type "run"
set dg-do-what [list ${dg-do-what-default} "" P]
set extra_flags(0) [lto-get-options-main $src1]
set compile_xfail(0) ""
# If the main file defines dg-options, those flags are used to
# overwrite the default lto_option_list taken from LTO_OPTIONS.
if { [string length $extra_flags(0)] > 0 } {
set lto_option_list $extra_flags(0)
set extra_flags(0) ""
} else {
set lto_option_list $LTO_OPTIONS
}
# Set up the names of the other source files.
set dir [file dirname $src1]
set base [file rootname $src1]
set base [string range $base [string length $dir] end]
regsub "_0" $base "" base
regsub "/" $base "" base
set src_list $src1
set i 1
set done 0
while { !$done } {
set names [glob -nocomplain -types f -- "${dir}/${base}_${i}.*"]
if { [llength ${names}] > 1 } {
warning "lto-execute: more than one file matched ${dir}/${base}_${i}.*"
}
if { [llength ${names}] == 1 } {
lappend src_list [lindex ${names} 0]
incr i
} else {
set num_srcs ${i}
set done 1
}
}
# Use the dg-options mechanism to specify extra flags for each
# of the secondary files.
# The extra flags in each file are used to compile that file, and the
# extra flags in *_0.* are also used for linking.
verbose "\tsrc_list is: $src_list"
for {set i 1} {$i < $num_srcs} {incr i} {
set extra_flags($i) [lto-get-options [lindex $src_list $i]]
set compile_xfail($i) $compiler_conditional_xfail_data
}
# Define the names of the object files.
set obj_list ""
for {set i 0} {$i < $num_srcs} {incr i} {
lappend obj_list "${sid}_${base}_${i}.o"
}
# Get the base name of this test, for use in messages.
set testcase [lindex ${src_list} 0]
# Remove the $srcdir and $tmpdir prefixes from $src1. (It would
# be possible to use "regsub" here, if we were careful to escape
# all regular expression characters in $srcdir and $tmpdir, but
# that would be more complicated that this approach.)
if {[string first "$srcdir/" "${testcase}"] == 0} {
set testcase [string range "${testcase}" [string length "$srcdir/"] end]
}
if {[string first "$tmpdir/" "$testcase"] == 0} {
set testcase [string range "$testcase" [string length "$tmpdir/"] end]
set testcase "tmpdir-$testcase"
}
# If we couldn't rip $srcdir out of `src1' then just do the best we can.
# The point is to reduce the unnecessary noise in the logs. Don't strip
# out too much because different testcases with the same name can confuse
# `test-tool'.
if [string match "/*" $testcase] then {
set testcase "[file tail [file dirname $src1]]/[file tail $src1]"
}
# Check whether this test is supported for this target.
if { [lindex ${dg-do-what} 1 ] == "N" } {
unsupported "$testcase"
verbose "$testcase not supported on this target, skipping it" 3
return
}
regsub "_0.*" $testcase "" testcase
# Set up the base name of executable files so they'll be unique.
regsub -all "\[./\]" $testcase "-" execbase
# Loop through all of the option lists used for this test.
set count 0
foreach option $lto_option_list {
verbose "Testing $testcase, $option"
# There's a unique name for each executable we generate.
set execname "${execbase}-${count}1.exe"
incr count
file_on_host delete $execname
# Compile pieces with the compiler under test.
set i 0
foreach src $src_list obj $obj_list {
lto-obj $src $obj $option $extra_flags($i) $option \
$compile_xfail($i)
incr i
}
# Link (using the compiler under test), run, and clean up tests.
if { ![string compare "run" $compile_type] \
|| ![string compare "link" $compile_type] } {
# Filter out any link options we were asked to suppress.
set reduced {}
foreach x [split $option] {
if {[lsearch ${dg-suppress-ld-options} $x] == -1} {
lappend reduced $x
}
}
set filtered [join $reduced " "]
lto-link-and-maybe-run \
"[lindex $obj_list 0]-[lindex $obj_list end]" \
$obj_list $execname $filtered ${dg-extra-ld-options} \
$filtered
}
# Are there any further tests to perform?
# Note that if the program has special run-time requirements, running
# of the program can be delayed until here. Ditto for other situations.
# It would be a bit cumbersome though.
if ![string match ${dg-final-code} ""] {
regsub -all "\\\\(\[{}\])" ${dg-final-code} "\\1" dg-final-code
# Note that the use of `args' here makes this a varargs proc.
proc dg-final-proc { args } ${dg-final-code}
verbose "Running dg-final tests." 3
verbose "dg-final-proc:\n[info body dg-final-proc]" 4
if [catch "dg-final-proc $src1" errmsg] {
perror "$name: error executing dg-final: $errmsg"
# ??? The call to unresolved here is necessary to clear
# `errcnt'. What we really need is a proc like perror that
# doesn't set errcnt. It should also set exit_status to 1.
unresolved "$name: error executing dg-final: $errmsg"
}
}
# Clean up object files.
set files [glob -nocomplain ${sid}_*.o]
if { $files != "" } {
foreach objfile $files {
if { ![info exists gluefile] || $objfile != $gluefile } {
eval "file_on_host delete $objfile"
}
}
}
if { ![string compare "run" $compile_type] \
|| ![string compare "link" $compile_type] } {
file_on_host delete $execname
}
}
}
# Utility for scanning a symbol in the final executable, invoked via dg-final.
# Call pass if pattern is present, otherwise fail.
#
# Argument 0 is the regexp to match.
# Argument 1 handles expected failures and the like
proc scan-symbol { args } {
global nm
global base_dir
upvar 2 execname execname
if { [llength $args] >= 2 } {
switch [dg-process-target [lindex $args 1]] {
"S" { }
"N" { return }
"F" { setup_xfail "*-*-*" }
"P" { }
}
}
# Find nm like we find g++ in g++.exp.
if ![info exists nm] {
set nm [findfile $base_dir/../../../binutils/nm \
$base_dir/../../../binutils/nm \
[findfile $base_dir/../../nm $base_dir/../../nm \
[findfile $base_dir/nm $base_dir/nm \
[transform nm]]]]
verbose -log "nm is $nm"
}
set output_file "[glob -nocomplain $execname]"
if { $output_file == "" } {
fail "scan-symbol $args: dump file does not exist"
return
}
set fd [open "| $nm $output_file" r]
set text [read $fd]
close $fd
if [regexp -- [lindex $args 0] $text] {
pass "scan-symbol $args"
} else {
fail "scan-symbol $args"
}
}
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