| /* Definitions of target machine for GNU compiler, for DEC Alpha on |
| Tru64 UNIX V5.1. |
| Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2001, |
| 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 |
| Free Software Foundation, Inc. |
| Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) |
| |
| 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/>. */ |
| |
| /* As of DEC OSF/1 V4.0, as can subtract adjacent labels. */ |
| |
| #undef TARGET_AS_CAN_SUBTRACT_LABELS |
| #define TARGET_AS_CAN_SUBTRACT_LABELS 1 |
| |
| /* The GEM libraries for X_float are present, though not used by C. */ |
| |
| #undef TARGET_HAS_XFLOATING_LIBS |
| #define TARGET_HAS_XFLOATING_LIBS 1 |
| |
| /* Tru64 UNIX V5.1 uses IEEE QUAD format. */ |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT (MASK_FPREGS | MASK_LONG_DOUBLE_128) |
| |
| /* The linker appears to perform invalid code optimizations that result |
| in the ldgp emitted for the exception_receiver pattern being incorrectly |
| linked. */ |
| #undef TARGET_LD_BUGGY_LDGP |
| #define TARGET_LD_BUGGY_LDGP 1 |
| |
| /* Tru64 UNIX V5.1 has the float and long double forms of math functions. */ |
| #undef TARGET_C99_FUNCTIONS |
| #define TARGET_C99_FUNCTIONS 1 |
| |
| /* Names to predefine in the preprocessor for this target machine. */ |
| |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define_std ("unix"); \ |
| builtin_define_std ("SYSTYPE_BSD"); \ |
| builtin_define ("_SYSTYPE_BSD"); \ |
| builtin_define ("__osf__"); \ |
| builtin_define ("__digital__"); \ |
| builtin_define ("__arch64__"); \ |
| builtin_define ("_LONGLONG"); \ |
| builtin_assert ("system=unix"); \ |
| builtin_assert ("system=xpg4"); \ |
| /* Tru64 UNIX V5 has a 16 byte long \ |
| double type and requires __X_FLOAT \ |
| to be defined for <math.h>. */ \ |
| if (LONG_DOUBLE_TYPE_SIZE == 128) \ |
| builtin_define ("__X_FLOAT"); \ |
| \ |
| /* Tru64 UNIX V4/V5 provide several ISO C94 \ |
| features protected by the corresponding \ |
| __STDC_VERSION__ macro. libstdc++ v3 \ |
| needs them as well. */ \ |
| if (c_dialect_cxx ()) \ |
| builtin_define ("__STDC_VERSION__=199409L"); \ |
| } while (0) |
| |
| /* Accept DEC C flags for multithreaded programs. We use _PTHREAD_USE_D4 |
| instead of PTHREAD_USE_D4 since both have the same effect and the former |
| doesn't invade the users' namespace. */ |
| |
| #undef CPP_SPEC |
| #define CPP_SPEC \ |
| "%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4}" |
| |
| /* -mcpu=native handling only makes sense with compiler running on |
| an Alpha chip. */ |
| #if defined(__alpha__) || defined(__alpha) |
| extern const char *host_detect_local_cpu (int argc, const char **argv); |
| # define EXTRA_SPEC_FUNCTIONS \ |
| { "local_cpu_detect", host_detect_local_cpu }, |
| |
| # define MCPU_MTUNE_NATIVE_SPECS \ |
| " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \ |
| " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}" |
| #else |
| # define MCPU_MTUNE_NATIVE_SPECS "" |
| #endif |
| |
| #define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS |
| |
| /* Under DEC OSF/1 V4, -p and -pg require -lprof1, and -lprof1 requires |
| -lpdf. */ |
| |
| #define LIB_SPEC \ |
| "%{p|pg:-lprof1%{pthread|threads:_r} -lpdf} \ |
| %{threads: -lpthreads} %{pthread|threads: -lpthread -lmach -lexc} -lc" |
| |
| /* Pass "-G 8" to ld because Alpha's CC does. Pass -O3 if we are |
| optimizing, -O1 if we are not. Pass -S to silence `weak symbol |
| multiply defined' warnings. Pass -shared, -non_shared or |
| -call_shared as appropriate. Pass -hidden_symbol so that our |
| constructor and call-frame data structures are not accidentally |
| overridden. */ |
| #define LINK_SPEC \ |
| "-G 8 %{O*:-O3} %{!O*:-O1} -S %{static:-non_shared} \ |
| %{!static:%{shared:-shared -hidden_symbol _GLOBAL_*} \ |
| %{!shared:-call_shared}} %{pg} %{taso} %{rpath*}" |
| |
| #define STARTFILE_SPEC \ |
| "%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}" |
| |
| #define ENDFILE_SPEC \ |
| "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}" |
| |
| #define MD_STARTFILE_PREFIX "/usr/lib/cmplrs/cc/" |
| |
| /* In Tru64 UNIX V5.1, Compaq introduced a new assembler |
| (/usr/lib/cmplrs/cc/adu) which currently (versions between 3.04.29 and |
| 3.04.32) breaks mips-tfile. Passing the undocumented -oldas flag reverts |
| to using the old assembler (/usr/lib/cmplrs/cc/as[01]). |
| |
| It is clearly not desirable to depend on this undocumented flag, and |
| Compaq wants -oldas to go away soon, but until they have released a |
| new adu that works with mips-tfile, this is the only option. |
| |
| In some versions of the DTK, the assembler driver invokes ld after |
| assembly. This has been fixed in current versions, but adding -c |
| works as expected for all versions. */ |
| |
| #define ASM_OLDAS_SPEC "-oldas -c" |
| |
| /* In OSF/1 v3.2c, the assembler by default does not output file names which |
| causes mips-tfile to fail. Passing -g to the assembler fixes this problem. |
| ??? Strictly speaking, we need -g only if the user specifies -g. Passing |
| it always means that we get slightly larger than necessary object files |
| if the user does not specify -g. If we don't pass -g, then mips-tfile |
| will need to be fixed to work in this case. Pass -O0 since some |
| optimization are broken and don't help us anyway. */ |
| #if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GAS) != 0 |
| #define ASM_SPEC "%{malpha-as:-g " ASM_OLDAS_SPEC " %{pg} -O0}" |
| #else |
| #define ASM_SPEC "%{!mgas:-g " ASM_OLDAS_SPEC " %{pg} -O0}" |
| #endif |
| |
| /* Specify to run a post-processor, mips-tfile after the assembler |
| has run to stuff the ecoff debug information into the object file. |
| This is needed because the Alpha assembler provides no way |
| of specifying such information in the assembly file. */ |
| |
| #if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GAS) != 0 |
| |
| #define ASM_FINAL_SPEC "\ |
| %{malpha-as: %{!mno-mips-tfile: \ |
| \n mips-tfile %{v*: -v} \ |
| %{K: -I %b.o~} \ |
| %{!K: %{save-temps: -I %b.o~}} \ |
| %{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \ |
| %{,assembler:%i;:%g.s}}}" |
| |
| #else |
| #define ASM_FINAL_SPEC "\ |
| %{!mgas: %{!mno-mips-tfile: \ |
| \n mips-tfile %{v*: -v} \ |
| %{K: -I %b.o~} \ |
| %{!K: %{save-temps: -I %b.o~}} \ |
| %{c:%W{o*}%{!o*:-o %b.o}}%{!c:-o %U.o} \ |
| %{,assembler:%i;:%g.s}}}" |
| |
| #endif |
| |
| /* Indicate that we have a stamp.h to use. */ |
| #ifndef CROSS_DIRECTORY_STRUCTURE |
| #define HAVE_STAMP_H 1 |
| #endif |
| |
| #define HAVE_ENABLE_EXECUTE_STACK |
| |
| /* Digital UNIX V4.0E (1091)/usr/include/sys/types.h 4.3.49.9 1997/08/14 */ |
| #define SIZE_TYPE "long unsigned int" |
| #define PTRDIFF_TYPE "long int" |
| |
| #define SIG_ATOMIC_TYPE "int" |
| |
| #define INT8_TYPE "signed char" |
| #define INT16_TYPE "short int" |
| #define INT32_TYPE "int" |
| #define INT64_TYPE "long int" |
| #define UINT8_TYPE "unsigned char" |
| #define UINT16_TYPE "short unsigned int" |
| #define UINT32_TYPE "unsigned int" |
| #define UINT64_TYPE "long unsigned int" |
| |
| #define INT_LEAST8_TYPE "signed char" |
| #define INT_LEAST16_TYPE "short int" |
| #define INT_LEAST32_TYPE "int" |
| #define INT_LEAST64_TYPE "long int" |
| #define UINT_LEAST8_TYPE "unsigned char" |
| #define UINT_LEAST16_TYPE "short unsigned int" |
| #define UINT_LEAST32_TYPE "unsigned int" |
| #define UINT_LEAST64_TYPE "long unsigned int" |
| |
| #define INT_FAST8_TYPE "signed char" |
| #define INT_FAST16_TYPE "int" |
| #define INT_FAST32_TYPE "int" |
| #define INT_FAST64_TYPE "long int" |
| #define UINT_FAST8_TYPE "unsigned char" |
| #define UINT_FAST16_TYPE "unsigned int" |
| #define UINT_FAST32_TYPE "unsigned int" |
| #define UINT_FAST64_TYPE "long unsigned int" |
| |
| #define INTPTR_TYPE "long int" |
| #define UINTPTR_TYPE "long unsigned int" |
| |
| /* The linker will stick __main into the .init section. */ |
| #define HAS_INIT_SECTION |
| #define LD_INIT_SWITCH "-init" |
| #define LD_FINI_SWITCH "-fini" |
| |
| /* From Tru64 UNIX Object File and Symbol Table Format Specification, |
| 2.3.5 Alignment, p.19. */ |
| #define MAX_OFILE_ALIGNMENT (64 * 1024 * BITS_PER_UNIT) |
| |
| /* 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. |
| |
| We really ought to be using the SREL32 relocations that ECOFF has, |
| but no version of the native assembler supports creating such things, |
| and Compaq has no plans to rectify this. Worse, the dynamic loader |
| cannot handle unaligned relocations, so we have to make sure that |
| things get padded appropriately. */ |
| #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ |
| (TARGET_GAS \ |
| ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \ |
| : DW_EH_PE_aligned) |
| |
| /* The Tru64 UNIX assembler warns on .lcomm with SIZE 0, so use 1 in that |
| case. */ |
| #undef ASM_OUTPUT_LOCAL |
| #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE,ROUNDED) \ |
| ( fputs ("\t.lcomm ", (FILE)), \ |
| assemble_name ((FILE), (NAME)), \ |
| fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED"\n", (SIZE) ? (SIZE) : 1)) |
| |
| /* This is how we tell the assembler that a symbol is weak. */ |
| |
| #define ASM_OUTPUT_WEAK_ALIAS(FILE, NAME, VALUE) \ |
| do \ |
| { \ |
| (*targetm.asm_out.globalize_label) (FILE, NAME); \ |
| fputs ("\t.weakext\t", FILE); \ |
| assemble_name (FILE, NAME); \ |
| if (VALUE) \ |
| { \ |
| fputc (' ', FILE); \ |
| assemble_name (FILE, VALUE); \ |
| } \ |
| fputc ('\n', FILE); \ |
| } \ |
| while (0) |
| |
| #define ASM_WEAKEN_LABEL(FILE, NAME) ASM_OUTPUT_WEAK_ALIAS(FILE, NAME, 0) |
| |
| /* The native assembler doesn't understand parenthesis. */ |
| #define TARGET_ASM_OPEN_PAREN "" |
| #define TARGET_ASM_CLOSE_PAREN "" |
| |
| /* Handle #pragma extern_prefix. */ |
| #define TARGET_HANDLE_PRAGMA_EXTERN_PREFIX 1 |
| |
| #define TARGET_HAVE_NAMED_SECTIONS false |