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# Copyright (C) 2008-2017 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/>.
# GCC testsuite that uses the `dg.exp' driver.
# This folder contains compile tests that set dg-options to
# some -mmcu=<MCU> which might collide with the MCU set by the
# target board. This in turn will fail the test case due to
# "error: specified option '-mmcu' more than once".
#
# Hence we filter out -mmcu= from cflags and --tool_opts before
# running the tests in this folder.
# Exit immediately if this isn't an AVR target.
if ![istarget avr-*-*] then {
return
}
# Return the saved values of the variable_list
proc save_variables { variable_list } {
set saved_variable { }
foreach variable $variable_list {
upvar 1 $variable var
set save($variable) $var
lappend saved_variable $save($variable)
}
return $saved_variable
}
# Restore the values of the variable_list
proc restore_variables { variable_list saved_variable } {
foreach variable $variable_list value $saved_variable {
upvar 1 $variable var
set var $value
}
}
# Filter out -mmcu= options
proc filter_out_mmcu { options } {
set reduced {}
foreach option [ split $options ] {
if { ![ regexp "\-mmcu=.*" $option ] } {
lappend reduced $option
}
}
return [ join $reduced " " ]
}
# Load support procs.
load_lib gcc-dg.exp
# If a testcase doesn't have special options, use these.
global DEFAULT_CFLAGS
if ![info exists DEFAULT_CFLAGS] then {
set DEFAULT_CFLAGS " -ansi -pedantic-errors"
}
# If no --tool_opts were specified, use empty ones.
if ![info exists TOOL_OPTIONS] then {
set TOOL_OPTIONS ""
}
# Initialize `dg'.
dg-init
# Save
set variablelist [ list TOOL_OPTIONS board_info([target_info name],cflags) ]
set saved_value [ save_variables $variablelist ]
# Filter-out -mmcu=
set TOOL_OPTIONS [ filter_out_mmcu $TOOL_OPTIONS ]
set board_info([ target_info name ],cflags) [ filter_out_mmcu $board_info([ target_info name ],cflags) ]
# Main loop.
dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.{\[cCS\],cpp}]] \
"" $DEFAULT_CFLAGS
# Restore
restore_variables $variablelist $saved_value
set dg_runtest_extra_prunes ""
# All done.
dg-finish
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