configure.in (arm-*-linux-gnueabi): Add to noconfigdirs target-libffi...

/
	* configure.in (arm-*-linux-gnueabi): Add to noconfigdirs
	target-libffi, target-qthreads, target-libjava, and
	targetlibobjc.
	* configure: Regenerate.

gcc/
	Merge from csl-arm-branch:
	2005-09-07  Paul Brook  <paul@codesourcery.com>
	* config/arm/linux-eabi.h (SUBTARGET_EXTRA_LINK_SPEC): Prepend a
	space to string.

	2005-04-30  Paul Brook  <paul@codesourcery.com>
	* config/arm/bpabi.h (TARGET_DEFAULT): Define.
	* config/arm/linux-eabi.h (SUBTARGET_CPU_DEFAULT): Define.

	2005-03-07  Daniel Jacobowitz  <dan@codesourcery.com>
	* config/arm/arm.c (arm_all_abis): Add aapcs-linux.
	(arm_override_options): Use TARGET_AAPCS_BASED.
	* config/arm/arm.h (enum arm_abi_type): Add ARM_ABI_AAPCS_LINUX.
	(PTRDIFF_TYPE): Use int for AAPCS.
	(DEFAULT_SHORT_ENUMS): Use false for aapcs-linux.
	* config/arm/linux-eabi.h (ARM_DEFAULT_ABI, WCHAR_TYPE): Define.
	(DEFAULT_SHORT_ENUMS): Delete.
	* doc/invoke.texi (ARM Options): Document -mabi=aapcs-linux.

	2004-12-15  Daniel Jacobowitz  <dan@codesourcery.com>
	* config/arm/arm.h (DEFAULT_SHORT_ENUMS): Wrap in #ifndef.
	* config/arm/linux-eabi.h (DEFAULT_SHORT_ENUMS): Define to 0.
	* config/arm/t-linux-eabi (TARGET_LIBGCC2_CFLAGS): Set to -fPIC.

	2004-12-03  Mark Mitchell  <mark@codesourcery.com>
	* config/arm/linux-eabi.h (LIBGCC_SPEC): Do not define.

	2004-11-22  Mark Mitchell  <mark@codesourcery.com>
	* config.gcc (arm*-*-linux-gnueabi): Use __cxa_atexit.

	2004-11-19  Mark Mitchell  <mark@codesourcery.com>
	* config.gcc (arm*-*-linux-gnueabi): Add it.
	* config/arm/bpabi.h (FPUTYPE_DEFAULT): Undefine it before
	redefining it.
	(TARGET_OS_CPP_BUILTINS): Likeiwse.
	* config/arm/linux-eabi.h: New file.
	* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): New macro.
	(LINUX_TARET_LINK_SPEC): Likewise.
	(LINK_SPEC): Use it.
	* config/arm/t-linux-eabi: New file.

libcpp/
	* configure.ac: Require 64-bit int for arm*-*-*eabi*.
	* configure: Regenerate.

libstdc++/
	Merge from csl-arm-branch:
	2004-12-15  Daniel Jacobowitz  <dan@codesourcery.com>
	* libstdc++-v3/config/linker-map.gnu: Add ARM EABI symbols.

From-SVN: r105121

9 files changed, 162 insertions, 10 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e916d52..1e5dd4c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,46 @@
+2005-10-08  Kazu Hirata  <kazu@codesourcery.com>
+
+	Merge from csl-arm-branch:
+	2005-09-07  Paul Brook  <paul@codesourcery.com>
+	* config/arm/linux-eabi.h (SUBTARGET_EXTRA_LINK_SPEC): Prepend a
+	space to string.
+
+	2005-04-30  Paul Brook  <paul@codesourcery.com>
+	* config/arm/bpabi.h (TARGET_DEFAULT): Define.
+	* config/arm/linux-eabi.h (SUBTARGET_CPU_DEFAULT): Define.
+
+	2005-03-07  Daniel Jacobowitz  <dan@codesourcery.com>
+	* config/arm/arm.c (arm_all_abis): Add aapcs-linux.
+	(arm_override_options): Use TARGET_AAPCS_BASED.
+	* config/arm/arm.h (enum arm_abi_type): Add ARM_ABI_AAPCS_LINUX.
+	(PTRDIFF_TYPE): Use int for AAPCS.
+	(DEFAULT_SHORT_ENUMS): Use false for aapcs-linux.
+	* config/arm/linux-eabi.h (ARM_DEFAULT_ABI, WCHAR_TYPE): Define.
+	(DEFAULT_SHORT_ENUMS): Delete.
+	* doc/invoke.texi (ARM Options): Document -mabi=aapcs-linux.
+
+	2004-12-15  Daniel Jacobowitz  <dan@codesourcery.com>
+	* config/arm/arm.h (DEFAULT_SHORT_ENUMS): Wrap in #ifndef.
+	* config/arm/linux-eabi.h (DEFAULT_SHORT_ENUMS): Define to 0.
+	* config/arm/t-linux-eabi (TARGET_LIBGCC2_CFLAGS): Set to -fPIC.
+
+	2004-12-03  Mark Mitchell  <mark@codesourcery.com>
+	* config/arm/linux-eabi.h (LIBGCC_SPEC): Do not define.
+
+	2004-11-22  Mark Mitchell  <mark@codesourcery.com>
+	* config.gcc (arm*-*-linux-gnueabi): Use __cxa_atexit.
+ 
+	2004-11-19  Mark Mitchell  <mark@codesourcery.com>
+	* config.gcc (arm*-*-linux-gnueabi): Add it.
+	* config/arm/bpabi.h (FPUTYPE_DEFAULT): Undefine it before
+	redefining it.
+	(TARGET_OS_CPP_BUILTINS): Likeiwse.
+	* config/arm/linux-eabi.h: New file.
+	* config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): New macro.
+	(LINUX_TARET_LINK_SPEC): Likewise.
+	(LINK_SPEC): Use it.
+	* config/arm/t-linux-eabi: New file.
+
 2005-10-08  Steven Bosscher  <stevenb@suse.de>
 
 	PR other/22202
diff --git a/gcc/config.gcc b/gcc/config.gcc
index cdfc66e..4634517 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -671,10 +671,26 @@ arm*-*-netbsd*)
 	use_collect2=yes
 	;;
 arm*-*-linux*)			# ARM GNU/Linux with ELF
-	tm_file="dbxelf.h elfos.h linux.h arm/elf.h  arm/linux-gas.h arm/linux-elf.h arm/aout.h arm/arm.h"
-	tmake_file="${tmake_file} arm/t-arm arm/t-linux"
+	tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h" 
+	tmake_file="${tmake_file} t-linux arm/t-arm"
 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
 	gnu_ld=yes
+	case ${target} in
+	arm*-*-linux-gnueabi)
+	    tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h"
+	    tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"
+  	    # The BPABI long long divmod functions return a 128-bit value in 
+	    # registers r0-r3.  Correctly modeling that requires the use of
+	    # TImode.
+	    need_64bit_hwint=yes
+	    # The EABI requires the use of __cxa_atexit.
+	    default_use_cxa_atexit=yes
+	    ;;
+	*)
+	    tmake_file="$tmake_file arm/t-linux"
+	    ;;
+	esac
+	tm_file="$tm_file arm/aout.h arm/arm.h"
 	;;
 arm*-*-uclinux*)		# ARM ucLinux
 	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/linux-gas.h arm/linux-elf.h arm/uclinux-elf.h"
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 60acf36..dd976b0 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -673,7 +673,8 @@ static const struct abi_name arm_all_abis[] =
   {"apcs-gnu",    ARM_ABI_APCS},
   {"atpcs",   ARM_ABI_ATPCS},
   {"aapcs",   ARM_ABI_AAPCS},
-  {"iwmmxt",  ARM_ABI_IWMMXT}
+  {"iwmmxt",  ARM_ABI_IWMMXT},
+  {"aapcs-linux",   ARM_ABI_AAPCS_LINUX}
 };
 
 /* Return the number of bits set in VALUE.  */
@@ -1194,7 +1195,7 @@ arm_override_options (void)
     flag_schedule_insns = flag_schedule_insns_after_reload = 0;
 
   /* Override the default structure alignment for AAPCS ABI.  */
-  if (arm_abi == ARM_ABI_AAPCS)
+  if (TARGET_AAPCS_BASED)
     arm_structure_size_boundary = 8;
 
   if (structure_size_string != NULL)
@@ -14527,7 +14528,7 @@ arm_promote_prototypes (tree t ATTRIBUTE_UNUSED)
 static bool
 arm_default_short_enums (void)
 {
-  return TARGET_AAPCS_BASED;
+  return TARGET_AAPCS_BASED && arm_abi != ARM_ABI_AAPCS_LINUX;
 }
 
 
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index 64b5e37..ae13a9d 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -279,7 +279,8 @@ enum arm_abi_type
   ARM_ABI_APCS,
   ARM_ABI_ATPCS,
   ARM_ABI_AAPCS,
-  ARM_ABI_IWMMXT
+  ARM_ABI_IWMMXT,
+  ARM_ABI_AAPCS_LINUX
 };
 
 extern enum arm_abi_type arm_abi;
@@ -501,6 +502,10 @@ extern int arm_structure_size_boundary;
 #define SIZE_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long unsigned int")
 #endif
 
+#ifndef PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_AAPCS_BASED ? "int" : "long int")
+#endif
+
 /* AAPCS requires that structure alignment is affected by bitfields.  */
 #ifndef PCC_BITFIELD_TYPE_MATTERS
 #define PCC_BITFIELD_TYPE_MATTERS TARGET_AAPCS_BASED
diff --git a/gcc/config/arm/bpabi.h b/gcc/config/arm/bpabi.h
index 7fb7d6a..ac5a090 100644
--- a/gcc/config/arm/bpabi.h
+++ b/gcc/config/arm/bpabi.h
@@ -30,8 +30,13 @@
 #define TARGET_UNWIND_INFO 1
 
 /* Section 4.1 of the AAPCS requires the use of VFP format.  */
+#undef FPUTYPE_DEFAULT
 #define FPUTYPE_DEFAULT FPUTYPE_VFP
 
+/* EABI targets should enable interworking by default.  */
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT MASK_INTERWORK
+
 /* The ARM BPABI functions return a boolean; they use no special
    calling convention.  */
 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) TARGET_BPABI
@@ -101,6 +106,7 @@
     }							\
   while (false)
 
+#undef TARGET_OS_CPP_BUILTINS
 #define TARGET_OS_CPP_BUILTINS() \
   TARGET_BPABI_CPP_BUILTINS()
 
diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
new file mode 100644
index 0000000..62aa6dd
--- /dev/null
+++ b/gcc/config/arm/linux-eabi.h
@@ -0,0 +1,70 @@
+/* Configuration file for ARM GNU/Linux EABI targets.
+   Copyright (C) 2004
+   Free Software Foundation, Inc.
+   Contributed by CodeSourcery, LLC   
+
+   This file is part of GCC.
+
+   GCC 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, or (at your
+   option) any later version.
+
+   GCC 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 COPYING.  If not, write to
+   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* On EABI GNU/Linux, we want both the BPABI builtins and the
+   GNU/Linux builtins.  */
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() 		\
+  do 						\
+    {						\
+      TARGET_BPABI_CPP_BUILTINS();		\
+      LINUX_TARGET_OS_CPP_BUILTINS();		\
+    }						\
+  while (false)
+
+/* We default to a soft-float ABI so that binaries can run on all
+   target hardware.  */
+#undef TARGET_DEFAULT_FLOAT_ABI
+#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
+
+/* We default to the "aapcs-linux" ABI so that enums are int-sized by
+   default.  */
+#undef ARM_DEFAULT_ABI
+#define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
+
+/* Default to armv5t so that thumb shared libraries work.
+   The ARM10TDMI core is the default for armv5t, so set
+   SUBTARGET_CPU_DEFAULT to achieve this.  */
+#undef SUBTARGET_CPU_DEFAULT
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
+
+#undef SUBTARGET_EXTRA_LINK_SPEC
+#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"
+
+/* Use ld-linux.so.3 so that it will be possible to run "classic"
+   GNU/Linux binaries on an EABI system.  */
+#undef LINUX_TARGET_INTERPRETER
+#define LINUX_TARGET_INTERPRETER "/lib/ld-linux.so.3"
+
+/* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+   use the GNU/Linux version, not the generic BPABI version.  */
+#undef LINK_SPEC
+#define LINK_SPEC LINUX_TARGET_LINK_SPEC
+
+/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
+   do not use -lfloat.  */
+#undef LIBGCC_SPEC
+
+/* Use the AAPCS type for wchar_t, or the previous Linux default for
+   non-AAPCS.  */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE (TARGET_AAPCS_BASED ? "unsigned int" : "long int")
diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
index 1006329..5429a13 100644
--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
@@ -81,18 +81,22 @@
 #define ENDFILE_SPEC \
   "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
 
-#undef  LINK_SPEC
-#define LINK_SPEC "%{h*} %{version:-v} \
+#define LINUX_TARGET_INTERPRETER "/lib/ld-linux.so.2"
+
+#define LINUX_TARGET_LINK_SPEC  "%{h*} %{version:-v} \
    %{b} \
    %{static:-Bstatic} \
    %{shared:-shared} \
    %{symbolic:-Bsymbolic} \
    %{rdynamic:-export-dynamic} \
-   %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
+   %{!dynamic-linker:-dynamic-linker " LINUX_TARGET_INTERPRETER "} \
    -X \
    %{mbig-endian:-EB}" \
    SUBTARGET_EXTRA_LINK_SPEC
 
+#undef  LINK_SPEC
+#define LINK_SPEC LINUX_TARGET_LINK_SPEC
+
 #define TARGET_OS_CPP_BUILTINS()		\
   do						\
     {						\
diff --git a/gcc/config/arm/t-linux-eabi b/gcc/config/arm/t-linux-eabi
new file mode 100644
index 0000000..7cfee90
--- /dev/null
+++ b/gcc/config/arm/t-linux-eabi
@@ -0,0 +1,7 @@
+# These functions are included in shared libraries.
+TARGET_LIBGCC2_CFLAGS = -fPIC
+
+# We do not build a Thumb multilib for Linux because the definition of
+# CLEAR_INSN_CACHE in linux-gas.h does not work in Thumb mode.
+MULTILIB_OPTIONS	=
+MULTILIB_DIRNAMES	=
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index bc4d178..e0a5097 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -7160,7 +7160,7 @@ architectures:
 @item -mabi=@var{name}
 @opindex mabi
 Generate code for the specified ABI@.  Permissible values are: @samp{apcs-gnu},
-@samp{atpcs}, @samp{aapcs} and @samp{iwmmxt}.
+@samp{atpcs}, @samp{aapcs}, @samp{aapcs-linux} and @samp{iwmmxt}.
 
 @item -mapcs-frame
 @opindex mapcs-frame