2014-05-21 John Marino <gnugcc@marino.st>

gcc:

	* config.gcc (*-*-dragonfly*): New target.
	* configure.ac: Detect dl_iterate_phdr (*freebsd*, *dragonfly*).
	* configure: Regenerate.
	* config/dragonfly-stdint.h: New.
	* config/dragonfly.h: New.
	* config/dragonfly.opt: New.
	* config/i386/dragonfly.h: New.
	* ginclude/stddef.h: Detect _PTRDIFF_T_DECLARED for DragonFly.

include:

	* liberty.h: Use basename function on DragonFly.

libcilkrts:

	* runtime/os-unix.c (__DragonFly__): New target.

libgcc:

	* config.host (*-*-dragonfly*): New target.
	* crtstuff.c: Make dl_iterate_support generic on *bsd.
	* enable-execute-stack-mprotect.c: Always mprotect on FreeBSD.
	* unwind-dw2-fde-dip.c: Add dl_iterate_phr support for DragonFly.
	* config/i386/dragonfly-unwind.h: New.

libitm:

	* configure.tgt (*-*-dragonfly*): New target.

libstdc++-v3:

	* acinclude.m4 (*-*-dragonfly*): New target.
	* configure: Regenerate.
	* configure.host (*-*-dragonfly*): New target.
	* config/locale/dragonfly/c_locale.cc: New.
	* config/locale/dragonfly/ctype_members.cc: New.
	* config/os/bsd/dragonfly/ctype_base.h: New.
	* config/os/bsd/dragonfly/ctype_configure_char.cc: New.
	* config/os/bsd/dragonfly/ctype_inline.h: New.
	* config/os/bsd/dragonfly/os_defines.h: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210694 138bc75d-0d04-0410-961f-82ee72b054a4

9 files changed, 412 insertions, 0 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 499200eb284..7d071a0222b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2014-05-21  John Marino  <gnugcc@marino.st>
+
+	* config.gcc (*-*-dragonfly*): New target.
+	* configure.ac: Detect dl_iterate_phdr (*freebsd*, *dragonfly*).
+	* configure: Regenerate.
+	* config/dragonfly-stdint.h: New.
+	* config/dragonfly.h: New.
+	* config/dragonfly.opt: New.
+	* config/i386/dragonfly.h: New.
+	* ginclude/stddef.h: Detect _PTRDIFF_T_DECLARED for DragonFly.
+
 2014-05-21  Richard Sandiford  <rsandifo@linux.vnet.ibm.com>
 
 	* tree.def (VOID_CST): New.
diff --git a/gcc/config.gcc b/gcc/config.gcc
index de010da7c1f..bf053851d9f 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -621,6 +621,26 @@ case ${target} in
     "" | yes | posix) thread_file='posix' ;;
   esac
   ;;
+*-*-dragonfly*)
+  gas=yes
+  gnu_ld=yes
+  tmake_file="t-slibgcc"
+  case ${enable_threads} in
+    "" | yes | posix)
+      thread_file='posix'
+      ;;
+    no | single)
+      # Let these non-posix thread selections fall through if requested
+      ;;
+    *)
+      echo 'Unknown thread configuration for DragonFly BSD'
+      exit 1
+      ;;
+  esac
+  extra_options="$extra_options rpath.opt dragonfly.opt"
+  default_use_cxa_atexit=yes
+  use_gcc_stdint=wrap
+  ;;
 *-*-freebsd*)
   # This is the generic ELF configuration of FreeBSD.  Later
   # machine-specific sections may refine and add to this
@@ -1321,6 +1341,14 @@ x86_64-*-rdos*)
     tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h i386/rdos.h i386/rdos64.h"
     tmake_file="i386/t-i386elf t-svr4"
     ;;
+i[34567]86-*-dragonfly*)
+	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h dragonfly.h dragonfly-stdint.h i386/dragonfly.h"
+	tmake_file="${tmake_file} i386/t-crtstuff"
+	;;
+x86_64-*-dragonfly*)
+	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h dragonfly.h dragonfly-stdint.h i386/x86-64.h i386/dragonfly.h"
+	tmake_file="${tmake_file} i386/t-crtstuff"
+	;;
 i[34567]86-*-freebsd*)
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ${fbsd_tm_file} i386/freebsd.h"
 	;;
@@ -4060,6 +4088,8 @@ case ${target} in
 		;;
 	i[34567]86-*-mingw* | x86_64-*-mingw*)
 		;;
+	i[34567]86-*-dragonfly* | x86_64-*-dragonfly*)
+		;;
 	i[34567]86-*-freebsd* | x86_64-*-freebsd*)
 		;;
 	ia64*-*-linux*)
diff --git a/gcc/config/dragonfly-stdint.h b/gcc/config/dragonfly-stdint.h
new file mode 100644
index 00000000000..f0bb30f3a5b
--- /dev/null
+++ b/gcc/config/dragonfly-stdint.h
@@ -0,0 +1,56 @@
+/* Definitions for <stdint.h> types for DragonFly systems.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Contributed by John Marino <gnugcc@marino.st>
+
+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 3, 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define SIG_ATOMIC_TYPE   "int"
+
+#define INT8_TYPE         "signed char"
+#define INT16_TYPE        "short int"
+#define INT32_TYPE        "int"
+#define INT64_TYPE        (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
+#define UINT8_TYPE        "unsigned char"
+#define UINT16_TYPE       "short unsigned int"
+#define UINT32_TYPE       "unsigned int"
+#define UINT64_TYPE       (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
+
+#define INT_LEAST8_TYPE   INT8_TYPE
+#define INT_LEAST16_TYPE  INT16_TYPE
+#define INT_LEAST32_TYPE  INT32_TYPE
+#define INT_LEAST64_TYPE  INT64_TYPE
+#define UINT_LEAST8_TYPE  UINT8_TYPE
+#define UINT_LEAST16_TYPE UINT16_TYPE
+#define UINT_LEAST32_TYPE UINT32_TYPE
+#define UINT_LEAST64_TYPE UINT64_TYPE
+
+#define INT_FAST8_TYPE    INT32_TYPE
+#define INT_FAST16_TYPE   INT32_TYPE
+#define INT_FAST32_TYPE   INT32_TYPE
+#define INT_FAST64_TYPE   INT64_TYPE
+#define UINT_FAST8_TYPE   UINT32_TYPE
+#define UINT_FAST16_TYPE  UINT32_TYPE
+#define UINT_FAST32_TYPE  UINT32_TYPE
+#define UINT_FAST64_TYPE  UINT64_TYPE
+
+#define INTPTR_TYPE       (LONG_TYPE_SIZE == 64 ?  INT64_TYPE :  INT32_TYPE)
+#define UINTPTR_TYPE      (LONG_TYPE_SIZE == 64 ? UINT64_TYPE : UINT32_TYPE)
diff --git a/gcc/config/dragonfly.h b/gcc/config/dragonfly.h
new file mode 100644
index 00000000000..115c25d3b99
--- /dev/null
+++ b/gcc/config/dragonfly.h
@@ -0,0 +1,129 @@
+/* Base configuration file for all DragonFly targets.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Contributed by John Marino <gnugcc@marino.st>
+
+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 3, 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#undef  TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()            \
+  do                                        \
+    {                                       \
+       builtin_define_std ("unix");         \
+       builtin_define ("__DragonFly__");    \
+       builtin_assert ("system=unix");      \
+       builtin_assert ("system=bsd");       \
+       builtin_assert ("system=DragonFly"); \
+    }                                       \
+  while (0)
+
+#undef  CPP_SPEC
+#define CPP_SPEC \
+ "%(cpp_cpu) %(cpp_arch) %{posix:-D_POSIX_SOURCE}"
+
+#undef  STARTFILE_SPEC
+#define STARTFILE_SPEC	\
+  "%{!shared: \
+     %{pg:gcrt1.o%s} \
+     %{!pg: \
+       %{p:gcrt1.o%s} \
+       %{!p: \
+         %{profile: gcrt1.o%s} \
+         %{!profile: \
+           %{pie: Scrt1.o%s;:crt1.o%s}}}}} \
+   crti.o%s \
+   %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
+
+#undef  LIB_SPEC
+#define LIB_SPEC \
+  "%{pthread:-lpthread} -lc"
+
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "--eh-frame-hdr"
+#endif
+
+/* Provide a LINK_SPEC appropriate for DragonFly.  Here we provide support
+   for the special GCC options -static and -shared, which allow us to
+   link things in one of these three modes by applying the appropriate
+   combinations of options at link-time.
+
+   When the -shared link option is used a final link is not being
+   done.  */
+
+#define DFBSD_LINK_SPEC \
+ "%{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \
+  %{v:-V} \
+  %{assert*} %{R*} %{rpath*} %{defsym*} \
+  %{shared:-Bshareable %{h*} %{soname*}} \
+  %{!shared: \
+   %{!static: \
+    %{rdynamic:-export-dynamic} \
+    -dynamic-linker %(dfbsd_dynamic_linker) \
+   } \
+   %{static:-Bstatic} \
+  } \
+  %{!static:--hash-style=gnu} \
+  %{symbolic:-Bsymbolic}"
+
+#undef  LINK_SPEC
+#define LINK_SPEC DFBSD_LINK_SPEC
+
+#define DFBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.2"
+
+
+/* Use --as-needed -lgcc_s for eh support.  */
+#ifdef HAVE_LD_AS_NEEDED
+#define USE_LD_AS_NEEDED 1
+#endif
+
+/************************[  Target stuff  ]***********************************/
+
+/* All DragonFly Architectures support the ELF object file format.  */
+#undef  OBJECT_FORMAT_ELF
+#define OBJECT_FORMAT_ELF
+
+/* Don't assume anything about the header files.  */
+#undef  NO_IMPLICIT_EXTERN_C
+#define NO_IMPLICIT_EXTERN_C	1
+
+/* Follow DragonFly's standard headers (<machine/stdint.h>, etc...).  */
+
+#undef  WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef  WINT_TYPE
+#define WINT_TYPE "int"
+
+/* Code generation parameters.  */
+
+/* Use periods rather than dollar signs in special g++ assembler names.
+   This ensures the configuration knows our system correctly so we can link
+   with libraries compiled with the native cc.  */
+#undef NO_DOLLAR_IN_LABEL
+
+/* Used by libgcc2.c.  We support file locking with fcntl / F_SETLKW.
+   This enables the test coverage code to use file locking when exiting a
+   program, which avoids race conditions if the program has forked.  */
+#define TARGET_POSIX_IO
diff --git a/gcc/config/dragonfly.opt b/gcc/config/dragonfly.opt
new file mode 100644
index 00000000000..c87828d1c6d
--- /dev/null
+++ b/gcc/config/dragonfly.opt
@@ -0,0 +1,64 @@
+; DragonFly BSD options.
+
+; Copyright (C) 2014 Free Software Foundation, Inc.
+;
+; 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 3, 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 COPYING3.  If not see
+; <http://www.gnu.org/licenses/>.
+
+; See the GCC internals manual (options.texi) for a description of this file's format.
+
+; Please try to keep this file in ASCII collating order.
+
+assert
+Driver Separate
+
+assert=
+Driver JoinedOrMissing
+
+defsym
+Driver Separate
+
+defsym=
+Driver JoinedOrMissing
+
+posix
+Driver
+
+profile
+Driver
+
+pthread
+Driver
+
+rdynamic
+Driver
+
+rpath-link
+Driver Separate
+
+rpath-link=
+Driver JoinedOrMissing
+
+rpath=
+Driver JoinedOrMissing
+
+soname
+Driver Separate
+
+soname=
+Driver JoinedOrMissing
+
+; This comment is to ensure we retain the blank line above.
diff --git a/gcc/config/i386/dragonfly.h b/gcc/config/i386/dragonfly.h
new file mode 100644
index 00000000000..71362d58e32
--- /dev/null
+++ b/gcc/config/i386/dragonfly.h
@@ -0,0 +1,104 @@
+/* Definitions for Intel 386 running DragonFly with ELF format
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Contributed by John Marino <gnugcc@marino.st>
+
+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 3, 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+
+/* Override the default comment-starter of "/".  */
+#undef  ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
+
+#undef  ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+#undef  ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+#undef  DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(n) \
+  (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
+
+#undef  NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS	1
+
+/* Tell final.c that we don't need a label passed to mcount.  */
+
+#undef  MCOUNT_NAME
+#define MCOUNT_NAME ".mcount"
+
+/* Make gcc agree with <machine/ansi.h>.  */
+
+#undef  SIZE_TYPE
+#define SIZE_TYPE	(TARGET_64BIT ? "long unsigned int" : "unsigned int")
+
+#undef  PTRDIFF_TYPE
+#define PTRDIFF_TYPE	(TARGET_64BIT ? "long int" : "int")
+
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE	(TARGET_64BIT ? 32 : BITS_PER_WORD)
+
+#undef  SUBTARGET_EXTRA_SPECS	/* i386.h bogusly defines it.  */
+#define SUBTARGET_EXTRA_SPECS \
+  { "dfbsd_dynamic_linker", DFBSD_DYNAMIC_LINKER }
+
+/* A C statement to output to the stdio stream FILE an assembler
+   command to advance the location counter to a multiple of 1<<LOG
+   bytes if it is within MAX_SKIP bytes.
+
+   This is used to align code labels according to Intel recommendations.  */
+
+#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#undef  ASM_OUTPUT_MAX_SKIP_ALIGN
+#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP)					\
+  if ((LOG) != 0) {														\
+    if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));	\
+    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
+  }
+#endif
+
+/* Don't default to pcc-struct-return, we want to retain compatibility with
+   older gcc versions AND pcc-struct-return is nonreentrant.
+   (even though the SVR4 ABI for the i386 says that records and unions are
+   returned in memory).  */
+
+#undef  DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 0
+
+/* DragonFly sets the rounding precision of the FPU to 53 bits.  Let the
+   compiler get the contents of <float.h> and std::numeric_limits correct.  */
+#undef TARGET_96_ROUND_53_LONG_DOUBLE
+#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
+
+/* Put all *tf routines in libgcc.  */
+#undef LIBGCC2_HAS_TF_MODE
+#define LIBGCC2_HAS_TF_MODE 1
+#define LIBGCC2_TF_CEXT q
+#define TF_SIZE 113
+
+/* Static stack checking is supported by means of probes.  */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+/* Support for i386 was removed from DragonFly in 2007  */
+#define SUBTARGET32_DEFAULT_CPU "i486"
+
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
diff --git a/gcc/configure b/gcc/configure
index 127dceeef73..1440d7e7d34 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -27325,6 +27325,13 @@ case "$target" in
       gcc_cv_target_dl_iterate_phdr=no
     fi
     ;;
+  *-*-dragonfly* | *-*-freebsd*)
+    if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then
+      gcc_cv_target_dl_iterate_phdr=yes
+    else
+      gcc_cv_target_dl_iterate_phdr=no
+    fi
+    ;;
 esac
 
 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
diff --git a/gcc/configure.ac b/gcc/configure.ac
index a339a0f54d8..281ce8e06a1 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5019,6 +5019,13 @@ case "$target" in
       gcc_cv_target_dl_iterate_phdr=no
     fi
     ;;
+  *-*-dragonfly* | *-*-freebsd*)
+    if grep dl_iterate_phdr $target_header_dir/sys/link_elf.h > /dev/null 2>&1; then
+      gcc_cv_target_dl_iterate_phdr=yes
+    else
+      gcc_cv_target_dl_iterate_phdr=no
+    fi
+    ;;
 esac
 GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
diff --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h
index cfa8df3097c..62e893a011e 100644
--- a/gcc/ginclude/stddef.h
+++ b/gcc/ginclude/stddef.h
@@ -133,6 +133,7 @@ _TYPE_wchar_t;
 #ifndef _BSD_PTRDIFF_T_
 #ifndef ___int_ptrdiff_t_h
 #ifndef _GCC_PTRDIFF_T
+#ifndef _PTRDIFF_T_DECLARED /* DragonFly */
 #define _PTRDIFF_T
 #define _T_PTRDIFF_
 #define _T_PTRDIFF
@@ -141,10 +142,12 @@ _TYPE_wchar_t;
 #define _BSD_PTRDIFF_T_
 #define ___int_ptrdiff_t_h
 #define _GCC_PTRDIFF_T
+#define _PTRDIFF_T_DECLARED
 #ifndef __PTRDIFF_TYPE__
 #define __PTRDIFF_TYPE__ long int
 #endif
 typedef __PTRDIFF_TYPE__ ptrdiff_t;
+#endif /* _PTRDIFF_T_DECLARED */
 #endif /* _GCC_PTRDIFF_T */
 #endif /* ___int_ptrdiff_t_h */
 #endif /* _BSD_PTRDIFF_T_ */
@@ -198,6 +201,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
 #define _GCC_SIZE_T
 #define _SIZET_
 #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
+  || defined(__DragonFly__) \
   || defined(__FreeBSD_kernel__)
 /* __size_t is a typedef on FreeBSD 5, must not trash it. */
 #elif defined (__VMS__)