# Copyright (C) 2002 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 2 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # This test checks whether MIPS ELF configurations pass the right # ABI flags to the assembler. An ABI flag should always be passed # unless MEABI is selected. load_lib gcc-dg.exp # Only run this test on MIPS ELF targets if {![istarget mips*-*-*] || [gcc_target_object_format] != "elf"} { return } # A list of all assembler ABI flags. We should use SGI-compatible # flags where possible. set asm_abi_flags {-32 -n32 -64 -mabi=o64 -mabi=eabi} # Return true if the configuration uses MEABI by default. proc is_meabi_config {} { return [expr {[istarget mipsisa32*-*-elf*] || [istarget mipsisa32el-*-elf*] || [istarget mipsisa64-*-elf*] || [istarget mipsisa64el-*-elf*] || [istarget mipsisa64sr71k-*-elf*]}] } # Try to assemble mips-abi.s (an empty file), passing -v in order to # get the assembler command line. Check whether an appropriate ABI # flag is passed. # # NAME is a name for the pass/fail line. # ABIS is a list of acceptable assembler ABI flags, or "" if no # ABI flag is expected. # FLAGS is a list of options for gcc. proc check_mips_abi {name abis flags} { global srcdir subdir asm_abi_flags lappend flags "-v" set lines [gcc_target_compile "$srcdir/$subdir/mips-abi.s" \ "mips-abi.o" object \ [list "additional_flags=$flags"]] set good 0 set bad 0 foreach line [split $lines "\n"] { # Find the assembler command line. if {[string first "$srcdir/$subdir/mips-abi.s" $line] >= 0} { foreach arg [split $line " "] { # Count the number of matching and non-matching # ABI options. if {[lsearch -exact $abis $arg] >= 0} { incr good } elseif {[lsearch -exact $asm_abi_flags $arg] >= 0} { incr bad } } } } if {$good == ($abis != "") && $bad == 0} { pass "mips-abi $name" } else { fail "mips-abi $name" } } # Collect the default target flags. set default_flags "" set target [target_info name] if {[info exists CFLAGS_FOR_TARGET]} { append default_flags " $CFLAGS_FOR_TARGET" } if {[board_info $target exists cflags]} { append default_flags " [board_info $target cflags]" } if {[board_info $target exists multilib_flags]} { append default_flags " [board_info $target multilib_flags]" } # See whether the default command line specifies an ABI. set default_abi "" foreach flag $default_flags { if {[string first "-mabi" $flag] == 0} { set default_abi $flag } } # If the command line does specify an ABI, just check for the # appropriate assembler flag. switch -- $default_abi { -mabi=meabi { check_mips_abi "MEABI" "" "" } -mabi=eabi { check_mips_abi "EABI" "-mabi=eabi" "" } -mabi=32 { check_mips_abi "o32" "-32" "" } -mabi=n32 { check_mips_abi "n32" "-n32" "" } -mabi=o64 { check_mips_abi "o64" "-mabi=o64" "" } -mabi=64 { check_mips_abi "n64" "-64" "" } "" { # MEABI configs shouldn't pass an ABI flag by default # but the others should. It doesn't seem worthwhile # duplicating the configuration to ABI logic here, # so just accept any ABI. if {[is_meabi_config]} { check_mips_abi "default" "" "" } else { check_mips_abi "default" $asm_abi_flags "" } # See whether passing a -mabi flag does the right thing. # Only try ABIs that the SGI assembler also understands. check_mips_abi "o32" "-32" "-mabi=32" check_mips_abi "n32" "-n32" "-mabi=n32" check_mips_abi "64" "-64" "-mabi=64" } }