/* Definitions of target machine for GNU compiler,
for 64 bit PowerPC linux.
- Copyright (C) 2000, 2001, 2002, 2003, 2004
- Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ 2009, 2010 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 2, or (at your
+ 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
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, 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA. */
+ 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/>. */
#ifndef RS6000_BI_ARCH
#define DOT_SYMBOLS dot_symbols
#endif
-#undef PROCESSOR_DEFAULT64
-#define PROCESSOR_DEFAULT64 PROCESSOR_PPC630
+#define TARGET_PROFILE_KERNEL profile_kernel
-#undef TARGET_RELOCATABLE
-#define TARGET_RELOCATABLE (!TARGET_64BIT && (target_flags & MASK_RELOCATABLE))
+#define TARGET_USES_LINUX64_OPT 1
+#ifdef HAVE_LD_LARGE_TOC
+extern enum rs6000_cmodel cmodel;
+#undef TARGET_CMODEL
+#define TARGET_CMODEL cmodel
+#define SET_CMODEL(opt) cmodel = opt
+#else
+#define SET_CMODEL(opt) do {} while (0)
+#endif
+
+#undef PROCESSOR_DEFAULT
+#define PROCESSOR_DEFAULT PROCESSOR_POWER6
+#undef PROCESSOR_DEFAULT64
+#define PROCESSOR_DEFAULT64 PROCESSOR_POWER6
+
+/* We don't need to generate entries in .fixup, except when
+ -mrelocatable or -mrelocatable-lib is given. */
+#undef RELOCATABLE_NEEDS_FIXUP
+#define RELOCATABLE_NEEDS_FIXUP \
+ (target_flags & target_flags_explicit & MASK_RELOCATABLE)
#undef RS6000_ABI_NAME
#define RS6000_ABI_NAME "linux"
#define SUBSUBTARGET_OVERRIDE_OPTIONS \
do \
{ \
- if (rs6000_alignment_string == 0) \
+ if (!rs6000_explicit_options.alignment) \
rs6000_alignment_flags = MASK_ALIGN_NATURAL; \
if (TARGET_64BIT) \
{ \
target_flags &= ~MASK_EABI; \
error (INVALID_64BIT, "eabi"); \
} \
- if (target_flags & MASK_PROTOTYPE) \
+ if (TARGET_PROTOTYPE) \
{ \
- target_flags &= ~MASK_PROTOTYPE; \
+ target_prototype = 0; \
error (INVALID_64BIT, "prototype"); \
} \
- if ((target_flags & MASK_POWERPC64) == 0) \
+ if ((target_flags & MASK_POWERPC64) == 0) \
{ \
target_flags |= MASK_POWERPC64; \
error ("-m64 requires a PowerPC64 cpu"); \
} \
+ if ((target_flags_explicit & MASK_MINIMAL_TOC) != 0) \
+ { \
+ if (rs6000_explicit_options.cmodel \
+ && cmodel != CMODEL_SMALL) \
+ error ("-mcmodel incompatible with other toc options"); \
+ SET_CMODEL (CMODEL_SMALL); \
+ } \
+ else \
+ { \
+ if (!rs6000_explicit_options.cmodel) \
+ SET_CMODEL (CMODEL_MEDIUM); \
+ if (cmodel != CMODEL_SMALL) \
+ { \
+ TARGET_NO_FP_IN_TOC = 0; \
+ TARGET_NO_SUM_IN_TOC = 0; \
+ } \
+ } \
} \
else \
{ \
error (INVALID_32BIT, "32"); \
if (TARGET_PROFILE_KERNEL) \
{ \
- target_flags &= ~MASK_PROFILE_KERNEL; \
+ TARGET_PROFILE_KERNEL = 0; \
error (INVALID_32BIT, "profile-kernel"); \
} \
+ if (rs6000_explicit_options.cmodel) \
+ { \
+ SET_CMODEL (CMODEL_SMALL); \
+ error (INVALID_32BIT, "cmodel"); \
+ } \
} \
} \
while (0)
#undef ASM_SPEC
#undef LINK_OS_LINUX_SPEC
+/* FIXME: This will quite possibly choose the wrong dynamic linker. */
+#undef LINK_OS_GNU_SPEC
+#define LINK_OS_GNU_SPEC LINK_OS_LINUX_SPEC
+
#ifndef RS6000_BI_ARCH
#define ASM_DEFAULT_SPEC "-mppc64"
-#define ASM_SPEC "%(asm_spec64) %(asm_spec_common)"
+#define ASM_SPEC "%(asm_spec64) %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)"
#else
#if DEFAULT_ARCH64_P
#define ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
-#define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
+#define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}"
#else
#define ASM_DEFAULT_SPEC "-mppc%{m64:64}"
-#define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
+#define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
#define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}"
#endif
#endif
#define ASM_SPEC32 "-a32 %{n} %{T} %{Ym,*} %{Yd,*} \
%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
-%{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \
+%{memb} %{!memb: %{msdata=eabi: -memb}} \
%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
%{mcall-freebsd: -mbig} \
%{mcall-i960-old: -mlittle} \
#define ASM_SPEC64 "-a64"
#define ASM_SPEC_COMMON "%(asm_cpu) \
-%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
+%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
%{v:-V} %{Qy:} %{!Qn:-Qy} %{Wa,*:%*} \
%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
#define TARGET_EABI 0
#undef TARGET_PROTOTYPE
#define TARGET_PROTOTYPE 0
+#undef RELOCATABLE_NEEDS_FIXUP
+#define RELOCATABLE_NEEDS_FIXUP 0
#endif
-#define MASK_PROFILE_KERNEL 0x00100000
-
-/* Non-standard profiling for kernels, which just saves LR then calls
- _mcount without worrying about arg saves. The idea is to change
- the function prologue as little as possible as it isn't easy to
- account for arg save/restore code added just for _mcount. */
-#define TARGET_PROFILE_KERNEL (target_flags & MASK_PROFILE_KERNEL)
-
-/* Override sysv4.h. */
-#undef EXTRA_SUBTARGET_SWITCHES
-#define EXTRA_SUBTARGET_SWITCHES \
- {"profile-kernel", MASK_PROFILE_KERNEL, \
- N_("Call mcount for profiling before a function prologue") }, \
- {"no-profile-kernel", -MASK_PROFILE_KERNEL, \
- N_("Call mcount for profiling after a function prologue") },
-
/* We use glibc _mcount for profiling. */
-#define NO_PROFILE_COUNTERS TARGET_64BIT
+#define NO_PROFILE_COUNTERS 1
#define PROFILE_HOOK(LABEL) \
do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
-/* We don't need to generate entries in .fixup. */
-#undef RELOCATABLE_NEEDS_FIXUP
-
/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
#undef ADJUST_FIELD_ALIGN
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
? 128 \
: (TARGET_64BIT \
&& TARGET_ALIGN_NATURAL == 0 \
- && TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \
- ? get_inner_array_type (FIELD) \
- : TREE_TYPE (FIELD)) == DFmode) \
+ && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \
? MIN ((COMPUTED), 32) \
: (COMPUTED))
the first field is an FP double, only if in power alignment mode. */
#undef ROUND_TYPE_ALIGN
#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \
- ((TARGET_ALTIVEC && TREE_CODE (STRUCT) == VECTOR_TYPE) \
- ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
- : (TARGET_64BIT \
- && (TREE_CODE (STRUCT) == RECORD_TYPE \
- || TREE_CODE (STRUCT) == UNION_TYPE \
- || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
- && TARGET_ALIGN_NATURAL == 0) \
+ ((TARGET_64BIT \
+ && (TREE_CODE (STRUCT) == RECORD_TYPE \
+ || TREE_CODE (STRUCT) == UNION_TYPE \
+ || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
+ && TARGET_ALIGN_NATURAL == 0) \
? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \
: MAX ((COMPUTED), (SPECIFIED)))
+/* Use the default for compiling target libs. */
+#ifdef IN_TARGET_LIBS
+#undef TARGET_ALIGN_NATURAL
+#define TARGET_ALIGN_NATURAL 1
+#endif
+
/* Indicate that jump tables go in the text section. */
#undef JUMP_TABLES_IN_TEXT_SECTION
#define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
+/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
+ process. */
+#define OS_MISSING_POWERPC64 !TARGET_64BIT
+
+#define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
+
+/* glibc has float and long double forms of math functions. */
+#undef TARGET_C99_FUNCTIONS
+#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
+
+/* Whether we have sincos that follows the GNU extension. */
+#undef TARGET_HAS_SINCOS
+#define TARGET_HAS_SINCOS (OPTION_GLIBC)
+
#undef TARGET_OS_CPP_BUILTINS
-#define TARGET_OS_CPP_BUILTINS() \
+#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
if (TARGET_64BIT) \
builtin_define ("__PPC64__"); \
builtin_define ("__powerpc__"); \
builtin_define ("__powerpc64__"); \
- builtin_define ("__PIC__"); \
builtin_assert ("cpu=powerpc64"); \
builtin_assert ("machine=powerpc64"); \
} \
#undef LINK_OS_DEFAULT_SPEC
#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1"
+#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
+#if DEFAULT_LIBC == LIBC_UCLIBC
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
+#elif DEFAULT_LIBC == LIBC_GLIBC
+#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
+#else
+#error "Unsupported DEFAULT_LIBC"
+#endif
+#define LINUX_DYNAMIC_LINKER32 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
+#define LINUX_DYNAMIC_LINKER64 \
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
+
+
#define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "}}}"
#define LINK_OS_LINUX_SPEC64 "-m elf64ppc %{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib64/ld64.so.1}}}"
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}}}"
#undef TOC_SECTION_ASM_OP
#define TOC_SECTION_ASM_OP \
#undef SAVE_FP_PREFIX
#define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
#undef SAVE_FP_SUFFIX
-#define SAVE_FP_SUFFIX (TARGET_64BIT ? "" : "_l")
+#define SAVE_FP_SUFFIX ""
#undef RESTORE_FP_PREFIX
#define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
#undef RESTORE_FP_SUFFIX
-#define RESTORE_FP_SUFFIX (TARGET_64BIT ? "" : "_l")
+#define RESTORE_FP_SUFFIX ""
/* Dwarf2 debugging. */
#undef PREFERRED_DEBUGGING_TYPE
we also do this for floating-point constants. We actually can only
do this if the FP formats of the target and host machines are the
same, but we can't check that since not every file that uses
- GO_IF_LEGITIMATE_ADDRESS_P includes real.h. We also do this when
- we can write the entry into the TOC and the entry is not larger
- than a TOC entry. */
+ the macros includes real.h. We also do this when we can write the
+ entry into the TOC and the entry is not larger than a TOC entry. */
#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
&& GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
|| (GET_CODE (X) == CONST_DOUBLE \
&& ((TARGET_64BIT \
- && (TARGET_POWERPC64 \
- || TARGET_MINIMAL_TOC \
- || (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
+ && (TARGET_MINIMAL_TOC \
+ || (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
&& ! TARGET_NO_FP_IN_TOC))) \
|| (!TARGET_64BIT \
&& !TARGET_NO_FP_IN_TOC \
&& !TARGET_RELOCATABLE \
- && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
+ && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
&& BITS_PER_WORD == HOST_BITS_PER_INT)))))
-/* This is the same as the dbxelf.h version, except that we need to
- use the function code label, not the function descriptor. */
-#undef ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE, COUNTER) \
-do \
- { \
- char temp[256]; \
- const char *s; \
- ASM_GENERATE_INTERNAL_LABEL (temp, "LM", COUNTER); \
- fprintf (FILE, "\t.stabn 68,0,%d,", LINE); \
- assemble_name (FILE, temp); \
- putc ('-', FILE); \
- s = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); \
- rs6000_output_function_entry (FILE, s); \
- putc ('\n', FILE); \
- (*targetm.asm_out.internal_label) (FILE, "LM", COUNTER); \
- } \
-while (0)
-
-/* Similarly, we want the function code label here. */
-#define DBX_OUTPUT_BRAC(FILE, NAME, BRAC) \
- do \
- { \
- const char *s; \
- fprintf (FILE, "%s%d,0,0,", ASM_STABN_OP, BRAC); \
- assemble_name (FILE, NAME); \
- putc ('-', FILE); \
- if (current_function_func_begin_label != NULL) \
- { \
- assemble_name (FILE, current_function_func_begin_label); \
- } \
- else \
- { \
- s = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); \
- rs6000_output_function_entry (FILE, s); \
- } \
- putc ('\n', FILE); \
- } \
- while (0)
-
-#define DBX_OUTPUT_LBRAC(FILE, NAME) DBX_OUTPUT_BRAC (FILE, NAME, N_LBRAC)
-#define DBX_OUTPUT_RBRAC(FILE, NAME) DBX_OUTPUT_BRAC (FILE, NAME, N_RBRAC)
-
-/* Another case where we want the dot name. */
-#define DBX_OUTPUT_NFUN(FILE, LSCOPE, DECL) \
- do \
- { \
- const char *s; \
- fprintf (FILE, "%s\"\",%d,0,0,", ASM_STABS_OP, N_FUN); \
- assemble_name (FILE, LSCOPE); \
- putc ('-', FILE); \
- s = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); \
- rs6000_output_function_entry (FILE, s); \
- putc ('\n', FILE); \
- } \
- while (0)
-
/* Select a format to encode pointers in exception handling data. CODE
is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
true if the symbol may be affected by dynamic relocations. */
#undef DRAFT_V4_STRUCT_RET
#define DRAFT_V4_STRUCT_RET (!TARGET_64BIT)
-#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+#define TARGET_ASM_FILE_END rs6000_elf_end_indicate_exec_stack
-#define TARGET_HAS_F_SETLKW
+#define TARGET_POSIX_IO
#define LINK_GCC_C_SEQUENCE_SPEC \
"%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
#define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h"
-#define OS_MISSING_POWERPC64 !TARGET_64BIT
+#ifdef TARGET_LIBC_PROVIDES_SSP
+/* ppc32 glibc provides __stack_chk_guard in -0x7008(2),
+ ppc64 glibc provides it at -0x7010(13). */
+#define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? -0x7010 : -0x7008)
+#endif
+
+#define POWERPC_LINUX
+
+/* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */
+#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
+#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
+#endif
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