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# Copyright (C) 1997-2022 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/>.
# DejaGnu's dg-test defines extra flags that are used to compile a test.
# Access them for directives that need to examine all options that are
# used for a test, including checks for non-cached effective targets.
# We don't know how far up the call chain it is but we know we'll hit
# it eventually, and that we're at least 3 calls down.
proc current_compiler_flags { } {
set frames 2
while { ![info exists flags1] } {
set frames [expr $frames + 1]
upvar $frames dg-extra-tool-flags flags1
}
upvar $frames tool_flags flags2
return "$flags1 $flags2"
}
# DejaGnu's dg-test defines a test name that includes torture options
# which is used in most pass/fail messages. Grab a copy of it.
proc testname-for-summary { } {
global testname_with_flags
# A variable called "name" is too generic, so identify dg-test by
# the existence of dg-extra-tool-flags.
if ![info exists testname_with_flags] {
set frames 2
while { ![info exists flags] } {
set frames [expr $frames + 1]
upvar $frames dg-extra-tool-flags flags
}
# We've got the stack level for dg-test; get the variable we want.
upvar $frames name name
set testname_with_flags $name
# If there are flags, add an extra space to improve readability of
# the test summary.
if { [llength $testname_with_flags] > 1 } {
set testname_with_flags "$testname_with_flags "
}
}
return "$testname_with_flags"
}
# If this target does not support weak symbols, skip this test.
proc dg-require-weak { args } {
set weak_available [ check_weak_available ]
if { $weak_available == -1 } {
upvar name name
unresolved "$name"
}
if { $weak_available != 1 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support overriding weak symbols, skip this
# test.
proc dg-require-weak-override { args } {
set weak_override_available [ check_weak_override_available ]
if { $weak_override_available == -1 } {
upvar name name
unresolved "$name"
}
if { $weak_override_available != 1 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support the "visibility" attribute, skip this
# test.
proc dg-require-visibility { args } {
set visibility_available [ check_visibility_available [lindex $args 1 ] ]
if { $visibility_available == -1 } {
upvar name name
unresolved "$name"
}
if { $visibility_available != 1 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support the "alias" attribute, skip this
# test.
proc dg-require-alias { args } {
set alias_available [ check_alias_available ]
if { $alias_available == -1 } {
upvar name name
unresolved "$name"
}
if { $alias_available < 2 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support the "ifunc" attribute, skip this
# test.
proc dg-require-ifunc { args } {
if { ![ check_ifunc_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target's linker does not support the --gc-sections flag,
# skip this test.
proc dg-require-gc-sections { args } {
if { ![ check_gc_sections_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support profiling, skip this test.
proc dg-require-profiling { args } {
if { ![ check_profiling_available [lindex $args 1] ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support DLL attributes skip this test.
proc dg-require-dll { args } {
# As a special case, the mcore-*-elf supports these attributes.
# All Symbian OS targets also support these attributes.
if { [istarget mcore-*-elf]
|| [istarget *-*-symbianelf] } {
return
}
# PE/COFF targets support dllimport/dllexport.
if { [gcc_target_object_format] == "pe" } {
return
}
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
# If this host does not support an ASCII locale, skip this test.
proc dg-require-ascii-locale { args } {
if { ![ check_ascii_locale_available] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
proc dg-require-iconv { args } {
if { ![ check_iconv_available ${args} ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this host does not have "dot", skip this test.
proc dg-require-dot { args } {
verbose "dg-require-dot" 2
if { ![ check_dot_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not have sufficient stack size, skip this test.
proc dg-require-stack-size { args } {
if { ![is-effective-target stack_size] } {
return
}
set stack_size [dg-effective-target-value stack_size]
set required [expr [lindex $args 1]]
if { $stack_size < $required } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support named sections skip this test.
proc dg-require-named-sections { args } {
if { ![ check_named_sections_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If the target does not match the required effective target, skip this test.
# Only apply this if the optional selector matches.
proc dg-require-effective-target { args } {
set args [lreplace $args 0 0]
# Verify the number of arguments. The last is optional.
if { [llength $args] < 1 || [llength $args] > 2 } {
error "syntax error, need a single effective-target keyword with optional selector"
}
# Don't bother if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
# Evaluate selector if present.
if { [llength $args] == 2 } {
switch [dg-process-target-1 [lindex $args 1]] {
"S" { }
"N" { return }
}
}
if { ![is-effective-target [lindex $args 0]] } {
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not have fork, skip this test.
proc dg-require-fork { args } {
if { ![check_fork_available] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not have mkfifo, skip this test.
proc dg-require-mkfifo { args } {
if { ![check_mkfifo_available] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not use __cxa_atexit, skip this test.
proc dg-require-cxa-atexit { args } {
if { ![ check_cxa_atexit_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If the host is remote rather than the same as the build system, skip
# this test. Some tests are incompatible with DejaGnu's handling of
# remote hosts, which involves copying the source file to the host and
# compiling it with a relative path and "-o a.out".
proc dg-require-host-local { args } {
if [ is_remote host ] {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
proc dg-require-linker-plugin { args } {
set linker_plugin_available [ check_linker_plugin_available ]
if { $linker_plugin_available == 0 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# If this target does not support the "stack-check" option, skip this
# test.
proc dg-require-stack-check { args } {
set stack_check_available [ check_stack_check_available [lindex $args 1 ] ]
if { $stack_check_available == -1 } {
upvar name name
unresolved "$name"
}
if { $stack_check_available != 1 } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
# Add any target-specific flags needed for accessing the given list
# of features. This must come after all dg-options.
proc dg-add-options { args } {
upvar dg-extra-tool-flags extra-tool-flags
foreach arg [lrange $args 1 end] {
if { [info procs add_options_for_$arg] != "" } {
set extra-tool-flags \
[eval [list add_options_for_$arg ${extra-tool-flags}]]
} else {
error "Unrecognized option type: $arg"
}
}
}
# Compare flags for a test directive against flags that will be used to
# compile the test: multilib flags, flags for torture options, and either
# the default flags for this group of tests or flags specified with a
# previous dg-options directive.
proc check-flags { args } {
global compiler_flags
global TOOL_OPTIONS
global TEST_ALWAYS_FLAGS
# The args are within another list; pull them out.
set args [lindex $args 0]
# Start the list with a dummy tool name so the list will match "*"
# if there are no flags.
set compiler_flags " toolname "
append compiler_flags [current_compiler_flags]
# If running a subset of the test suite, $TOOL_OPTIONS may not exist.
catch {append compiler_flags " $TOOL_OPTIONS "}
# If running a subset of the test suite, $TEST_ALWAYS_FLAGS may not exist.
catch {append compiler_flags " $TEST_ALWAYS_FLAGS "}
set dest [target_info name]
if [board_info $dest exists cflags] {
append compiler_flags "[board_info $dest cflags] "
}
if [board_info $dest exists multilib_flags] {
append compiler_flags "[board_info $dest multilib_flags] "
}
# The next two arguments are optional. If they were not specified,
# use the defaults.
if { [llength $args] == 2 } {
lappend $args [list "*"]
}
if { [llength $args] == 3 } {
lappend $args [list ""]
}
# If the option strings are the defaults, or the same as the
# defaults, there is no need to call check_conditional_xfail to
# compare them to the actual options.
if { [string compare [lindex $args 2] "*"] == 0
&& [string compare [lindex $args 3] "" ] == 0 } {
set result 1
} else {
# The target list might be an effective-target keyword, so replace
# the original list with "*-*-*", since we already know it matches.
set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]
}
# Any value in this variable was left over from an earlier test.
set compiler_flags ""
return $result
}
# Skip the test (report it as UNSUPPORTED) if the target list and
# included flags are matched and the excluded flags are not matched.
#
# The first argument is the line number of the dg-skip-if directive
# within the test file. Remaining arguments are as for xfail lists:
# message { targets } { include } { exclude }
#
# This tests against multilib flags plus either the default flags for this
# group of tests or flags specified with a previous dg-options command.
proc dg-skip-if { args } {
# Verify the number of arguments. The last two are optional.
set args [lreplace $args 0 0]
if { [llength $args] < 2 || [llength $args] > 4 } {
error "dg-skip-if 2: need 2, 3, or 4 arguments"
}
# Don't bother if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
set selector [list target [lindex $args 1]]
if { [dg-process-target-1 $selector] == "S" } {
if [check-flags $args] {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}
}
# Like check_conditional_xfail, but callable from a dg test.
proc dg-xfail-if { args } {
# Verify the number of arguments. The last three are optional.
set args [lreplace $args 0 0]
if { [llength $args] < 2 || [llength $args] > 4 } {
error "dg-xfail-if: need 2, 3, or 4 arguments"
}
# Don't change anything if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
set selector [list target [lindex $args 1]]
if { [dg-process-target-1 $selector] == "S" } {
global compiler_conditional_xfail_data
# The target list might be an effective-target keyword. Replace
# the original list with "*-*-*", since we already know it matches.
set args [lreplace $args 1 1 "*-*-*"]
# Supply default values for unspecified optional arguments.
if { [llength $args] == 2 } {
lappend $args [list "*"]
}
if { [llength $args] == 3 } {
lappend $args [list ""]
}
set compiler_conditional_xfail_data $args
}
}
# Like dg-xfail-if but for the execute step.
proc dg-xfail-run-if { args } {
# Verify the number of arguments. The last two are optional.
set args [lreplace $args 0 0]
if { [llength $args] < 2 || [llength $args] > 4 } {
error "dg-xfail-run-if: need 2, 3, or 4 arguments"
}
# Don't bother if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
set selector [list target [lindex $args 1]]
if { [dg-process-target-1 $selector] == "S" } {
if [check-flags $args] {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "S" "F"]
}
}
}
# Record whether the program is expected to return a nonzero status.
set shouldfail 0
proc dg-shouldfail { args } {
# Don't bother if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
global shouldfail
set args [lreplace $args 0 0]
if { [llength $args] > 1 } {
set selector [list target [lindex $args 1]]
if { [dg-process-target-1 $selector] == "S" } {
# The target matches, now check the flags.
if [check-flags $args] {
set shouldfail 1
}
}
} else {
set shouldfail 1
}
}
# Record whether the compiler is expected (at the moment) to ICE.
# Used for tests that test bugs that have not been fixed yet.
set expect_ice 0
proc dg-ice { args } {
# Don't bother if we're already skipping the test.
upvar dg-do-what dg-do-what
if { [lindex ${dg-do-what} 1] == "N" } {
return
}
global expect_ice
set args [lreplace $args 0 0]
if { [llength $args] > 1 } {
set selector [list target [lindex $args 1]]
if { [dg-process-target-1 $selector] == "S" } {
# The target matches, now check the flags.
if [check-flags $args] {
set expect_ice 1
}
}
} else {
set expect_ice 1
}
}
# Intercept the call to the DejaGnu version of dg-process-target to
# support use of an effective-target keyword in place of a list of
# target triplets to xfail or skip a test.
#
# The argument to dg-process-target is the keyword "target" or "xfail"
# followed by a selector:
# target-triplet-1 ...
# effective-target-keyword
# selector-expression
#
# For a target list the result is "S" if the target is selected, "N" otherwise.
# For an xfail list the result is "F" if the target is affected, "P" otherwise.
# In contexts that allow either "target" or "xfail" the argument can be
# target selector1 xfail selector2
# which returns "N" if selector1 is not selected, otherwise the result of
# "xfail selector2".
#
# A selector expression appears within curly braces and uses a single logical
# operator: !, &&, or ||. An operand is another selector expression, an
# effective-target keyword, or a list of target triplets within quotes or
# curly braces.
if { [info procs saved-dg-process-target] == [list] } {
rename dg-process-target saved-dg-process-target
# Evaluate an operand within a selector expression.
proc selector_opd { op } {
set selector "target"
lappend selector $op
set answer [ expr { [dg-process-target $selector] == "S" } ]
verbose "selector_opd: `$op' $answer" 2
return $answer
}
# Evaluate a target triplet list within a selector expression.
# Unlike other operands, this needs to be expanded from a list to
# the same string as "target".
proc selector_list { op } {
set selector "target [join $op]"
set answer [ expr { [dg-process-target $selector] == "S" } ]
verbose "selector_list: `$op' $answer" 2
return $answer
}
# Evaluate a selector expression.
proc selector_expression { exp } {
if { [llength $exp] >= 2
&& [string match "any-opts" [lindex $exp 0]] } {
set args [list "" { *-*-* } [lrange $exp 1 end] ""]
set answer [check_conditional_xfail $args]
} elseif { [llength $exp] >= 2
&& [string match "no-opts" [lindex $exp 0]] } {
set args [list "" { *-*-* } "*" [lrange $exp 1 end]]
set answer [check_conditional_xfail $args]
} elseif { [llength $exp] == 2 } {
if [string match "!" [lindex $exp 0]] {
set op1 [lindex $exp 1]
set answer [expr { ! [selector_opd $op1] }]
} else {
# Assume it's a list of target triplets.
set answer [selector_list $exp]
}
} elseif { [llength $exp] == 3 } {
set op1 [lindex $exp 0]
set opr [lindex $exp 1]
set op2 [lindex $exp 2]
if [string match "&&" $opr] {
set answer [expr { [selector_opd $op1] && [selector_opd $op2] }]
} elseif [string match "||" $opr] {
set answer [expr { [selector_opd $op1] || [selector_opd $op2] }]
} else {
# Assume it's a list of target triplets.
set answer [selector_list $exp]
}
} else {
# Assume it's a list of target triplets.
set answer [selector_list $exp]
}
verbose "selector_expression: `$exp' $answer" 2
return $answer
}
# Evaluate "target selector" or "xfail selector".
proc dg-process-target-1 { args } {
verbose "dg-process-target-1: `$args'" 2
# Extract the 'what' keyword from the argument list.
set selector [string trim [lindex $args 0]]
if [regexp "^xfail " $selector] {
set what "xfail"
} elseif [regexp "^target " $selector] {
set what "target"
} else {
error "syntax error in target selector \"$selector\""
}
# Extract the rest of the list, which might be a keyword.
regsub "^${what}" $selector "" rest
set rest [string trim $rest]
if [is-effective-target-keyword $rest] {
# The selector is an effective target keyword.
if [is-effective-target $rest] {
return [expr { $what == "xfail" ? "F" : "S" }]
} else {
return [expr { $what == "xfail" ? "P" : "N" }]
}
}
if [string match "{*}" $rest] {
if [selector_expression [lindex $rest 0]] {
return [expr { $what == "xfail" ? "F" : "S" }]
} else {
return [expr { $what == "xfail" ? "P" : "N" }]
}
}
# The selector is not an effective-target keyword, so process
# the list of target triplets.
return [saved-dg-process-target $selector]
}
# Intercept calls to the DejaGnu function. In addition to
# processing "target selector" or "xfail selector", handle
# "target selector1 xfail selector2".
proc dg-process-target { args } {
verbose "replacement dg-process-target: `$args'" 2
set selector [string trim [lindex $args 0]]
# If the argument list contains both 'target' and 'xfail',
# process 'target' and, if that succeeds, process 'xfail'.
if [regexp "^target .* xfail .*" $selector] {
set xfail_index [string first "xfail" $selector]
set xfail_selector [string range $selector $xfail_index end]
set target_selector [string range $selector 0 [expr $xfail_index-1]]
set target_selector [string trim $target_selector]
if { [dg-process-target-1 $target_selector] == "N" } {
return "N"
}
return [dg-process-target-1 $xfail_selector]
}
return [dg-process-target-1 $selector]
}
}
# If this target does not support the "symver" attribute, skip this
# test.
proc dg-require-symver { args } {
if { ![ check_symver_available ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
}
}