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+# Copyright (C) 1997-2014 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 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"]
+ }
+}
+
+# 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
+ }
+}
+
+# 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 } {
+ 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]
+ }
+}
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