Re: ABI choice for MIPS on debian lenny?
- To: debian-mips@lists.debian.org
- Cc: Debian GCC Maintainers <debian-gcc@lists.debian.org>
- Subject: Re: ABI choice for MIPS on debian lenny?
- From: Laurent GUERBY <laurent@guerby.net>
- Date: Sat, 28 Feb 2009 13:53:57 +0100
- Message-id: <1235825637.11347.468.camel@localhost>
- In-reply-to: <1235766139.11347.408.camel@localhost>
- References: <1235766139.11347.408.camel@localhost>
On Fri, 2009-02-27 at 21:22 +0100, Laurent GUERBY wrote:
> Hi,
>
> On debian lenny I'm playing with GCC trunk (4.4) to build a tri-ABI
> compiler on a lemote netbook (running gnewsense kernel and lenny
> userspace).
The following patch to GCC trunk (4.4) enables building a tri-ABI
languages=c,ada compiler with abi=32 binaries, defaulting to producing
abi=32 binaries but supporting abi=n32 and abi=64, that is the same
setup as the shipping 4.3.x compiler as far as I understand it.
Lithgly tested but it seems to work.
I will submit the Ada parts of the patch after 4.4.0 is released
since currently this kind of patches are put on hold until the release
is out.
The config part is more of a hack/change default so I won't submit this
part of the patch but may be it can be useful for packagers.
Sincerely,
Laurent
PS: configure options:
../trunk/configure --enable-languages=c,ada --enable-__cxa_atexit --disable-nls --enable-threads=posix --enable-stage1-checking=release --prefix=/n/51/guerby/install-trunk-144425-b --build=mipsel-linux-gnu --host=mipsel-linux-gnu --target=mipsel-linux-gnu --disable-fixed-point
Index: gcc/ada/s-linux.ads
===================================================================
--- gcc/ada/s-linux.ads (revision 144426)
+++ gcc/ada/s-linux.ads (working copy)
@@ -95,8 +95,9 @@
-- struct_sigaction offsets
- sa_mask_pos : constant := Standard'Address_Size / 8;
- sa_flags_pos : constant := 128 + sa_mask_pos;
+ sa_handler_pos : constant := 0;
+ sa_mask_pos : constant := Standard'Address_Size / 8;
+ sa_flags_pos : constant := 128 + sa_mask_pos;
SA_SIGINFO : constant := 16#04#;
SA_ONSTACK : constant := 16#08000000#;
Index: gcc/ada/s-osinte-linux.ads
===================================================================
--- gcc/ada/s-osinte-linux.ads (revision 144426)
+++ gcc/ada/s-osinte-linux.ads (working copy)
@@ -510,9 +510,9 @@
pragma Warnings (Off);
for struct_sigaction use record
- sa_handler at 0 range 0 .. Standard'Address_Size - 1;
- sa_mask at Linux.sa_mask_pos range 0 .. 1023;
- sa_flags at Linux.sa_flags_pos range 0 .. Standard'Address_Size - 1;
+ sa_handler at Linux.sa_handler_pos range 0 .. Standard'Address_Size - 1;
+ sa_mask at Linux.sa_mask_pos range 0 .. 1023;
+ sa_flags at Linux.sa_flags_pos range 0 .. Standard'Address_Size - 1;
end record;
-- We intentionally leave sa_restorer unspecified and let the compiler
-- append it after the last field, so disable corresponding warning.
Index: gcc/ada/s-linux-hppa.ads
===================================================================
--- gcc/ada/s-linux-hppa.ads (revision 144426)
+++ gcc/ada/s-linux-hppa.ads (working copy)
@@ -97,8 +97,9 @@
-- struct_sigaction offsets
- sa_flags_pos : constant := Standard'Address_Size / 8;
- sa_mask_pos : constant := sa_flags_pos * 2;
+ sa_handler_pos : constant := 0;
+ sa_flags_pos : constant := Standard'Address_Size / 8;
+ sa_mask_pos : constant := sa_flags_pos * 2;
SA_SIGINFO : constant := 16#10#;
SA_ONSTACK : constant := 16#01#;
Index: gcc/ada/make.adb
===================================================================
--- gcc/ada/make.adb (revision 144426)
+++ gcc/ada/make.adb (working copy)
@@ -8039,6 +8039,7 @@
or else Argv (2 .. Argv'Last) = "pg"
or else (Argv (2) = 'm' and then Argv'Last > 2)
or else (Argv (2) = 'f' and then Argv'Last > 2)
+ or else (Argv'Last >= 8 and then Argv (2 .. 8) = "-param=")
then
Add_Switch (Argv, Compiler, And_Save => And_Save);
Add_Switch (Argv, Linker, And_Save => And_Save);
Index: gcc/ada/system-linux-mips64el.ads
===================================================================
--- gcc/ada/system-linux-mips64el.ads (revision 0)
+++ gcc/ada/system-linux-mips64el.ads (revision 0)
@@ -0,0 +1,154 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- S Y S T E M --
+-- --
+-- S p e c --
+-- (GNU-Linux/MIPSEL Version) --
+-- --
+-- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 2, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT 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 distributed with GNAT; see file COPYING. If not, write --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
+-- --
+-- As a special exception, if other files instantiate generics from this --
+-- unit, or you link this unit with other files to produce an executable, --
+-- this unit does not by itself cause the resulting executable to be --
+-- covered by the GNU General Public License. This exception does not --
+-- however invalidate any other reasons why the executable file might be --
+-- covered by the GNU Public License. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+package System is
+ pragma Pure;
+ -- Note that we take advantage of the implementation permission to make
+ -- this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+ -- 2005, this is Pure in any case (AI-362).
+
+ type Name is (SYSTEM_NAME_GNAT);
+ System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+ -- System-Dependent Named Numbers
+
+ Min_Int : constant := Long_Long_Integer'First;
+ Max_Int : constant := Long_Long_Integer'Last;
+
+ Max_Binary_Modulus : constant := 2 ** Long_Long_Integer'Size;
+ Max_Nonbinary_Modulus : constant := Integer'Last;
+
+ Max_Base_Digits : constant := Long_Long_Float'Digits;
+ Max_Digits : constant := Long_Long_Float'Digits;
+
+ Max_Mantissa : constant := 63;
+ Fine_Delta : constant := 2.0 ** (-Max_Mantissa);
+
+ Tick : constant := 0.000_001;
+
+ -- Storage-related Declarations
+
+ type Address is private;
+ Null_Address : constant Address;
+
+ Storage_Unit : constant := 8;
+ Word_Size : constant := 64;
+ Memory_Size : constant := 2 ** 64;
+
+ -- Address comparison
+
+ function "<" (Left, Right : Address) return Boolean;
+ function "<=" (Left, Right : Address) return Boolean;
+ function ">" (Left, Right : Address) return Boolean;
+ function ">=" (Left, Right : Address) return Boolean;
+ function "=" (Left, Right : Address) return Boolean;
+
+ pragma Import (Intrinsic, "<");
+ pragma Import (Intrinsic, "<=");
+ pragma Import (Intrinsic, ">");
+ pragma Import (Intrinsic, ">=");
+ pragma Import (Intrinsic, "=");
+
+ -- Other System-Dependent Declarations
+
+ type Bit_Order is (High_Order_First, Low_Order_First);
+ Default_Bit_Order : constant Bit_Order := Low_Order_First;
+ pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
+
+ -- Priority-related Declarations (RM D.1)
+
+ Max_Priority : constant Positive := 30;
+ Max_Interrupt_Priority : constant Positive := 31;
+
+ subtype Any_Priority is Integer range 0 .. 31;
+ subtype Priority is Any_Priority range 0 .. 30;
+ subtype Interrupt_Priority is Any_Priority range 31 .. 31;
+
+ Default_Priority : constant Priority := 15;
+
+private
+
+ type Address is mod Memory_Size;
+ Null_Address : constant Address := 0;
+
+ --------------------------------------
+ -- System Implementation Parameters --
+ --------------------------------------
+
+ -- These parameters provide information about the target that is used
+ -- by the compiler. They are in the private part of System, where they
+ -- can be accessed using the special circuitry in the Targparm unit
+ -- whose source should be consulted for more detailed descriptions
+ -- of the individual switch values.
+
+ AAMP : constant Boolean := False;
+ Backend_Divide_Checks : constant Boolean := False;
+ Backend_Overflow_Checks : constant Boolean := False;
+ Command_Line_Args : constant Boolean := True;
+ Compiler_System_Version : constant Boolean := False;
+ Configurable_Run_Time : constant Boolean := False;
+ Denorm : constant Boolean := True;
+ Duration_32_Bits : constant Boolean := False;
+ Exit_Status_Supported : constant Boolean := True;
+ Fractional_Fixed_Ops : constant Boolean := False;
+ Frontend_Layout : constant Boolean := False;
+ Functions_Return_By_DSP : constant Boolean := False;
+ Machine_Overflows : constant Boolean := False;
+ Machine_Rounds : constant Boolean := True;
+ OpenVMS : constant Boolean := False;
+ Preallocated_Stacks : constant Boolean := False;
+ Signed_Zeros : constant Boolean := True;
+ Stack_Check_Default : constant Boolean := False;
+ Stack_Check_Probes : constant Boolean := False;
+ Support_64_Bit_Divides : constant Boolean := True;
+ Support_Aggregates : constant Boolean := True;
+ Support_Composite_Assign : constant Boolean := True;
+ Support_Composite_Compare : constant Boolean := True;
+ Support_Long_Shifts : constant Boolean := True;
+ Suppress_Standard_Library : constant Boolean := False;
+ Use_Ada_Main_Program_Name : constant Boolean := False;
+ ZCX_By_Default : constant Boolean := True;
+ GCC_ZCX_Support : constant Boolean := True;
+ Front_End_ZCX_Support : constant Boolean := False;
+
+ -- Obsolete entries, to be removed eventually (bootstrap issues!)
+
+ High_Integrity_Mode : constant Boolean := False;
+ Long_Shifts_Inlined : constant Boolean := True;
+
+end System;
Index: gcc/ada/gcc-interface/Makefile.in
===================================================================
--- gcc/ada/gcc-interface/Makefile.in (revision 144426)
+++ gcc/ada/gcc-interface/Makefile.in (working copy)
@@ -1447,11 +1447,11 @@
endif
ifeq ($(strip $(filter-out mipsel linux%,$(arch) $(osys))),)
- LIBGNAT_TARGET_PAIRS = \
+ LIBGNAT_TARGET_PAIRS_COMMON = \
a-intnam.ads<a-intnam-linux.ads \
s-inmaop.adb<s-inmaop-posix.adb \
s-intman.adb<s-intman-posix.adb \
- s-linux.ads<s-linux.ads \
+ s-linux.ads<s-linux-mipsel.ads \
s-osinte.adb<s-osinte-posix.adb \
s-osinte.ads<s-osinte-linux.ads \
s-osprim.adb<s-osprim-posix.adb \
@@ -1460,9 +1460,22 @@
s-tasinf.adb<s-tasinf-linux.adb \
s-taspri.ads<s-taspri-posix-noaltstack.ads \
s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
- g-sercom.adb<g-sercom-linux.adb \
+ g-sercom.adb<g-sercom-linux.adb
+
+ LIBGNAT_TARGET_PAIRS_32 = \
system.ads<system-linux-mipsel.ads
+ LIBGNAT_TARGET_PAIRS_64 = \
+ system.ads<system-linux-mips64el.ads
+
+ ifeq ($(strip $(shell $(GCC_FOR_TARGET) $(GNATLIBCFLAGS) -print-multi-os-directory)),../lib64)
+ LIBGNAT_TARGET_PAIRS = \
+ $(LIBGNAT_TARGET_PAIRS_COMMON) $(LIBGNAT_TARGET_PAIRS_64)
+ else
+ LIBGNAT_TARGET_PAIRS = \
+ $(LIBGNAT_TARGET_PAIRS_COMMON) $(LIBGNAT_TARGET_PAIRS_32)
+ endif
+
TOOLS_TARGET_PAIRS = \
mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \
indepsw.adb<indepsw-gnu.adb
@@ -1476,6 +1489,49 @@
LIBRARY_VERSION := $(LIB_VERSION)
endif
+ifeq ($(strip $(filter-out mips64el linux%,$(arch) $(osys))),)
+ LIBGNAT_TARGET_PAIRS_COMMON = \
+ a-intnam.ads<a-intnam-linux.ads \
+ s-inmaop.adb<s-inmaop-posix.adb \
+ s-intman.adb<s-intman-posix.adb \
+ s-linux.ads<s-linux-mipsel.ads \
+ s-osinte.adb<s-osinte-posix.adb \
+ s-osinte.ads<s-osinte-linux.ads \
+ s-osprim.adb<s-osprim-posix.adb \
+ s-taprop.adb<s-taprop-linux.adb \
+ s-tasinf.ads<s-tasinf-linux.ads \
+ s-tasinf.adb<s-tasinf-linux.adb \
+ s-taspri.ads<s-taspri-posix-noaltstack.ads \
+ s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
+ g-sercom.adb<g-sercom-linux.adb
+
+ LIBGNAT_TARGET_PAIRS_32 = \
+ system.ads<system-linux-mipsel.ads
+
+ LIBGNAT_TARGET_PAIRS_64 = \
+ system.ads<system-linux-mips64el.ads
+
+ ifeq ($(strip $(shell $(GCC_FOR_TARGET) $(GNATLIBCFLAGS) -print-multi-os-directory)),../lib64)
+ LIBGNAT_TARGET_PAIRS = \
+ $(LIBGNAT_TARGET_PAIRS_COMMON) $(LIBGNAT_TARGET_PAIRS_64)
+ else
+ LIBGNAT_TARGET_PAIRS = \
+ $(LIBGNAT_TARGET_PAIRS_COMMON) $(LIBGNAT_TARGET_PAIRS_32)
+ endif
+
+ TOOLS_TARGET_PAIRS = \
+ mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \
+ indepsw.adb<indepsw-gnu.adb
+
+ EXTRA_GNATRTL_TASKING_OBJS=s-linux.o
+ EH_MECHANISM=-gcc
+ THREADSLIB = -lpthread
+ GNATLIB_SHARED = gnatlib-shared-dual
+ GMEM_LIB = gmemlib
+ PREFIX_OBJS = $(PREFIX_REAL_OBJS)
+ LIBRARY_VERSION := $(LIB_VERSION)
+endif
+
ifeq ($(strip $(filter-out powerpc% linux%,$(arch) $(osys))),)
LIBGNAT_TARGET_PAIRS_COMMON = \
a-intnam.ads<a-intnam-linux.ads \
Index: gcc/ada/s-linux-alpha.ads
===================================================================
--- gcc/ada/s-linux-alpha.ads (revision 144426)
+++ gcc/ada/s-linux-alpha.ads (working copy)
@@ -105,8 +105,9 @@
-- struct_sigaction offsets
- sa_mask_pos : constant := Standard'Address_Size / 8;
- sa_flags_pos : constant := 128 + sa_mask_pos;
+ sa_handler_pos : constant := 0;
+ sa_mask_pos : constant := Standard'Address_Size / 8;
+ sa_flags_pos : constant := 128 + sa_mask_pos;
SA_SIGINFO : constant := 16#40#;
SA_ONSTACK : constant := 16#01#;
Index: gcc/ada/s-linux-mipsel.ads
===================================================================
--- gcc/ada/s-linux-mipsel.ads (revision 0)
+++ gcc/ada/s-linux-mipsel.ads (revision 0)
@@ -0,0 +1,120 @@
+------------------------------------------------------------------------------
+-- --
+-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- S Y S T E M . L I N U X --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2009, Free Software Foundation, Inc. --
+-- --
+-- GNARL is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 2, or (at your option) any later ver- --
+-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- OUT 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 distributed with GNARL; see file COPYING. If not, write --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
+-- --
+-- As a special exception, if other files instantiate generics from this --
+-- unit, or you link this unit with other files to produce an executable, --
+-- this unit does not by itself cause the resulting executable to be --
+-- covered by the GNU General Public License. This exception does not --
+-- however invalidate any other reasons why the executable file might be --
+-- covered by the GNU Public License. --
+-- --
+------------------------------------------------------------------------------
+
+-- This is the mipsel version of this package
+
+-- This package encapsulates cpu specific differences between implementations
+-- of GNU/Linux, in order to share s-osinte-linux.ads.
+
+-- PLEASE DO NOT add any with-clauses to this package or remove the pragma
+-- Preelaborate. This package is designed to be a bottom-level (leaf) package
+
+package System.Linux is
+ pragma Preelaborate;
+
+ -----------
+ -- Errno --
+ -----------
+
+ EAGAIN : constant := 11;
+ EINTR : constant := 4;
+ EINVAL : constant := 22;
+ ENOMEM : constant := 12;
+ EPERM : constant := 1;
+ ETIMEDOUT : constant := 110;
+
+ -------------
+ -- Signals --
+ -------------
+
+ SIGHUP : constant := 1; -- hangup
+ SIGINT : constant := 2; -- interrupt (rubout)
+ SIGQUIT : constant := 3; -- quit (ASCD FS)
+ SIGILL : constant := 4; -- illegal instruction (not reset)
+ SIGTRAP : constant := 5; -- trace trap (not reset)
+ SIGIOT : constant := 6; -- IOT instruction
+ SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
+ SIGFPE : constant := 8; -- floating point exception
+ SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
+ SIGBUS : constant := 7; -- bus error
+ SIGSEGV : constant := 11; -- segmentation violation
+ SIGPIPE : constant := 13; -- write on a pipe with no one to read it
+ SIGALRM : constant := 14; -- alarm clock
+ SIGTERM : constant := 15; -- software termination signal from kill
+ SIGUSR1 : constant := 10; -- user defined signal 1
+ SIGUSR2 : constant := 12; -- user defined signal 2
+ SIGCLD : constant := 17; -- alias for SIGCHLD
+ SIGCHLD : constant := 17; -- child status change
+ SIGPWR : constant := 30; -- power-fail restart
+ SIGWINCH : constant := 28; -- window size change
+ SIGURG : constant := 23; -- urgent condition on IO channel
+ SIGPOLL : constant := 29; -- pollable event occurred
+ SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
+ SIGLOST : constant := 29; -- File lock lost
+ SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
+ SIGTSTP : constant := 20; -- user stop requested from tty
+ SIGCONT : constant := 18; -- stopped process has been continued
+ SIGTTIN : constant := 21; -- background tty read attempted
+ SIGTTOU : constant := 22; -- background tty write attempted
+ SIGVTALRM : constant := 26; -- virtual timer expired
+ SIGPROF : constant := 27; -- profiling timer expired
+ SIGXCPU : constant := 24; -- CPU time limit exceeded
+ SIGXFSZ : constant := 25; -- filesize limit exceeded
+ SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
+ SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
+ SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
+ SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
+ SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+
+ -- struct_sigaction offsets
+
+ sa_handler_pos : constant := Standard'Address_Size / 8;
+ sa_mask_pos : constant := 2 * Standard'Address_Size / 8;
+ sa_flags_pos : constant := 0;
+
+ SA_SIGINFO : constant := 16#04#;
+ SA_ONSTACK : constant := 16#08000000#;
+
+ type struct_pthread_fast_lock is record
+ status : Long_Integer;
+ spinlock : Integer;
+ end record;
+ pragma Convention (C, struct_pthread_fast_lock);
+
+ type pthread_mutex_t is record
+ m_reserved : Integer;
+ m_count : Integer;
+ m_owner : System.Address;
+ m_kind : Integer;
+ m_lock : struct_pthread_fast_lock;
+ end record;
+ pragma Convention (C, pthread_mutex_t);
+
+end System.Linux;
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc (revision 144426)
+++ gcc/config.gcc (working copy)
@@ -1570,15 +1570,11 @@
test x$with_llsc != x || with_llsc=yes
;;
mips*-*-linux*) # Linux MIPS, either endian.
- tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h"
- tmake_file="${tmake_file} mips/t-libgcc-mips16"
- case ${target} in
- mipsisa32r2*)
- tm_defines="${tm_defines} MIPS_ISA_DEFAULT=33"
- ;;
- mipsisa32*)
- tm_defines="${tm_defines} MIPS_ISA_DEFAULT=32"
- esac
+ tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h mips/linux64.h"
+ tmake_file="${tmake_file} mips/t-linux64 mips/t-libgcc-mips16"
+ tm_defines="${tm_defines} MIPS_ABI_DEFAULT=ABI_32"
+ gnu_ld=yes
+ gas=yes
test x$with_llsc != x || with_llsc=yes
;;
mips*-*-openbsd*)
Index: gcc/config/mips/linux64.h
===================================================================
--- gcc/config/mips/linux64.h (revision 144426)
+++ gcc/config/mips/linux64.h (working copy)
@@ -26,7 +26,7 @@
BASE_DRIVER_SELF_SPECS, \
LINUX_DRIVER_SELF_SPECS \
" %{!EB:%{!EL:%(endian_spec)}}" \
- " %{!mabi=*: -mabi=n32}"
+ " %{!mabi=*: -mabi=32}"
#undef LIB_SPEC
#define LIB_SPEC "\
Index: gcc/config/mips/t-linux64
===================================================================
--- gcc/config/mips/t-linux64 (revision 144426)
+++ gcc/config/mips/t-linux64 (working copy)
@@ -1,6 +1,6 @@
-MULTILIB_OPTIONS = mabi=n32/mabi=32/mabi=64
-MULTILIB_DIRNAMES = n32 32 64
-MULTILIB_OSDIRNAMES = ../lib32 ../lib ../lib64
+MULTILIB_OPTIONS = mabi=32/mabi=n32/mabi=64
+MULTILIB_DIRNAMES = 32 n32 64
+MULTILIB_OSDIRNAMES = ../lib ../lib32 ../lib64
EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o
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