/* Target definitions for x86 running Darwin.
- Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2010
+ Free Software Foundation, Inc.
Contributed by Apple Computer 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 2, or (at your option)
+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,
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* Enable Mach-O bits in generic x86 code. */
#undef TARGET_MACHO
#define TARGET_VERSION fprintf (stderr, " (i686 Darwin)");
#undef TARGET_64BIT
-#define TARGET_64BIT (target_flags & MASK_64BIT)
+#define TARGET_64BIT OPTION_ISA_64BIT
#ifdef IN_LIBGCC2
#undef TARGET_64BIT
#undef FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN
#define FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN (0)
+#undef TARGET_KEEPS_VECTOR_ALIGNED_STACK
+#define TARGET_KEEPS_VECTOR_ALIGNED_STACK 1
+
+/* On Darwin, the stack is 128-bit aligned at the point of every call.
+ Failure to ensure this will lead to a crash in the system libraries
+ or dynamic loader. */
+#undef STACK_BOUNDARY
+#define STACK_BOUNDARY 128
+
+#undef MAIN_STACK_BOUNDARY
+#define MAIN_STACK_BOUNDARY 128
+
+/* Since we'll never want a stack boundary less aligned than 128 bits
+ we need the extra work here otherwise bits of gcc get very grumpy
+ when we ask for lower alignment. We could just reject values less
+ than 128 bits for Darwin, but it's easier to up the alignment if
+ it's below the minimum. */
+#undef PREFERRED_STACK_BOUNDARY
+#define PREFERRED_STACK_BOUNDARY \
+ MAX (STACK_BOUNDARY, ix86_preferred_stack_boundary)
+
/* We want -fPIC by default, unless we're using -static to compile for
the kernel or some such. */
#undef CC1_SPEC
-#define CC1_SPEC "%{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}} \
+#define CC1_SPEC "%(cc1_cpu) \
+ %<mdynamic-no-pic " /* For now, we just ignore this flag */ " \
+ %{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}} \
+ %{!mmacosx-version-min=*:-mmacosx-version-min=%(darwin_minversion)} \
%{g: %{!fno-eliminate-unused-debug-symbols: -feliminate-unused-debug-symbols }}"
#undef ASM_SPEC
#define DARWIN_ARCH_SPEC "%{m64:x86_64;:i386}"
#define DARWIN_SUBARCH_SPEC DARWIN_ARCH_SPEC
+/* Determine a minimum version based on compiler options. */
+#define DARWIN_MINVERSION_SPEC \
+ "%{!m64|fgnu-runtime:10.4; \
+ ,objective-c|,objc-cpp-output:10.5; \
+ ,objective-c-header:10.5; \
+ ,objective-c++|,objective-c++-cpp-output:10.5; \
+ ,objective-c++-header|,objc++-cpp-output:10.5; \
+ :10.4}"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+ "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
+ %{mpc32:crtprec32.o%s} \
+ %{mpc64:crtprec64.o%s} \
+ %{mpc80:crtprec80.o%s}"
+
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
+ DARWIN_EXTRA_SPECS \
{ "darwin_arch", DARWIN_ARCH_SPEC }, \
{ "darwin_crt2", "" }, \
{ "darwin_subarch", DARWIN_SUBARCH_SPEC },
#define SHIFT_DOUBLE_OMITS_COUNT 0
-extern void darwin_x86_file_end (void);
#undef TARGET_ASM_FILE_END
-#define TARGET_ASM_FILE_END darwin_x86_file_end
+#define TARGET_ASM_FILE_END darwin_file_end
/* Define the syntax of pseudo-ops, labels and comments. */
/* By default, target has a 80387, uses IEEE compatible arithmetic,
and returns float values in the 387. */
+#undef TARGET_SUBTARGET_DEFAULT
#define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_128BIT_LONG_DOUBLE)
+/* For darwin we want to target specific processor features as a minimum,
+ but these unfortunately don't correspond to a specific processor. */
+#undef TARGET_SUBTARGET32_ISA_DEFAULT
+#define TARGET_SUBTARGET32_ISA_DEFAULT (OPTION_MASK_ISA_MMX \
+ | OPTION_MASK_ISA_SSE \
+ | OPTION_MASK_ISA_SSE2 \
+ | OPTION_MASK_ISA_SSE3)
+
+#undef TARGET_SUBTARGET64_ISA_DEFAULT
+#define TARGET_SUBTARGET64_ISA_DEFAULT TARGET_SUBTARGET32_ISA_DEFAULT
+
/* For now, disable dynamic-no-pic. We'll need to go through i386.c
with a fine-tooth comb looking for refs to flag_pic! */
#define MASK_MACHO_DYNAMIC_NO_PIC 0
#define TARGET_DYNAMIC_NO_PIC (target_flags & MASK_MACHO_DYNAMIC_NO_PIC)
#undef GOT_SYMBOL_NAME
-#define GOT_SYMBOL_NAME (machopic_function_base_name ())
+#define GOT_SYMBOL_NAME MACHOPIC_FUNCTION_BASE_NAME
/* Define the syntax of pseudo-ops, labels and comments. */
/* Assembler pseudos to introduce constants of various size. */
-#define ASM_BYTE_OP "\t.byte\t"
+#define ASM_BYTE "\t.byte\t"
#define ASM_SHORT "\t.word\t"
#define ASM_LONG "\t.long\t"
#define ASM_QUAD "\t.quad\t"
#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
( fputs (".comm ", (FILE)), \
assemble_name ((FILE), (NAME)), \
- fprintf ((FILE), ",%lu\n", (unsigned long)(ROUNDED)))
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n", (ROUNDED)))
/* This says how to output an assembler line
to define a local common symbol. */
} while (0)
/* Darwin on x86_64 uses dwarf-2 by default. Pre-darwin9 32-bit
- compiles defaut to stabs+. darwin9+ defaults to dwarf-2. */
+ compiles default to stabs+. darwin9+ defaults to dwarf-2. */
#ifndef DARWIN_PREFER_DWARF
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE (TARGET_64BIT ? DWARF2_DEBUG : DBX_DEBUG)
: (n) >= 11 && (n) <= 18 ? (n) + 1 \
: (n))
-#undef REGISTER_TARGET_PRAGMAS
-#define REGISTER_TARGET_PRAGMAS() DARWIN_REGISTER_TARGET_PRAGMAS()
+#undef REGISTER_SUBTARGET_PRAGMAS
+#define REGISTER_SUBTARGET_PRAGMAS() DARWIN_REGISTER_TARGET_PRAGMAS()
#undef TARGET_SET_DEFAULT_TYPE_ATTRIBUTES
#define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES darwin_set_default_type_attributes
used in Mach-O. */
#undef MACHO_SYMBOL_FLAG_VARIABLE
#define MACHO_SYMBOL_FLAG_VARIABLE ((SYMBOL_FLAG_MACH_DEP) << 3)
+
+#define SUBTARGET32_DEFAULT_CPU "i686"
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