/* Definitions of target machine for GNU compiler. Motorola m88100 running DG/UX. Copyright (C) 1988, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. Contributed by Michael Tiemann (tiemann@mcc.com) Currently maintained by (gcc@dg-rtp.dg.com) This file is part of GNU CC. GNU CC 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. GNU CC 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 GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* You're not seeing double! To transition to dwarf debugging, both are supported. The option -msvr4 specifies elf. With these combinations, -g means dwarf. */ /* DWARF_DEBUGGING_INFO defined in svr4.h. */ #define SDB_DEBUGGING_INFO #define PREFERRED_DEBUGGING_TYPE \ (TARGET_SVR4 ? DWARF_DEBUG : SDB_DEBUG) #ifndef VERSION_INFO2 #define VERSION_INFO2 "$Revision: 1.1.1.5 $" #endif #ifndef NO_BUGS #define AS_BUG_IMMEDIATE_LABEL /* The DG/UX 4.30 assembler doesn't accept the symbol `fcr63'. */ #define AS_BUG_FLDCR #endif #include "svr4.h" #include "m88k/m88k.h" /* Augment TARGET_SWITCHES with the MXDB options. */ #define MASK_STANDARD 0x40000000 /* Retain standard information */ #define MASK_NOLEGEND 0x20000000 /* Discard legend information */ #define MASK_EXTERNAL_LEGEND 0x10000000 /* Make external legends */ #define TARGET_STANDARD (target_flags & MASK_STANDARD) #define TARGET_NOLEGEND (target_flags & MASK_NOLEGEND) #define TARGET_EXTERNAL_LEGEND (target_flags & MASK_EXTERNAL_LEGEND) #undef SUBTARGET_SWITCHES #define SUBTARGET_SWITCHES \ { "standard", MASK_STANDARD }, \ { "legend", -MASK_NOLEGEND }, \ { "no-legend", MASK_NOLEGEND }, \ { "external-legend", MASK_EXTERNAL_LEGEND }, \ /* the following is used only in the *_SPEC's */ \ { "keep-coff", 0 }, /* Default switches */ #undef TARGET_DEFAULT #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV | \ MASK_OCS_DEBUG_INFO | \ MASK_OCS_FRAME_POSITION | \ MASK_STANDARD | \ MASK_SVR4) #undef CPU_DEFAULT #define CPU_DEFAULT MASK_88000 /* Macros to be automatically defined. __svr4__ is our extension. __CLASSIFY_TYPE__ is used in the and header files with DG/UX revision 5.40 and later. This allows GNU CC to operate without installing the header files. */ #undef CPP_PREDEFINES #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -DDGUX -D__CLASSIFY_TYPE__=2\ -D__svr4__ -Asystem(unix) -Acpu(m88k) -Amachine(m88k)" /* If -m88100 is in effect, add -Dm88100; similarly for -m88110. Here, the CPU_DEFAULT is assumed to be -m88000. If not -ansi, -traditional, or restricting include files to one specific source target, specify full DG/UX features. */ #undef CPP_SPEC #define CPP_SPEC "%(cpp_cpu) %{msvr3:-D_M88KBCS_TARGET} %{!msvr3:-D_DGUX_TARGET}" /* Assembler support (-V, silicon filter, legends for mxdb). */ #undef ASM_SPEC #define ASM_SPEC "%{pipe:%{!.s: - }\ %{!msvr3:%{!m88110:-KV3 }%{m88110:-KV04.00 }}}\ %(asm_cpu)" /* Override svr4.h. */ #undef ASM_FINAL_SPEC #undef STARTFILE_SPEC /* Linker and library spec's. -msvr4 is the default if -msvr3 is not specified. -static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options. -svr4 instructs gcc to place /usr/lib/values-X[cat].o on the link line. -msvr3 indicates linking done in a COFF environment and the link script is added to the link line. In all environments, the first and last objects are crtbegin.o (or bcscrtbegin.o) and crtend.o. When the -G link option is used (-shared and -symbolic) a final link is not being done. */ #undef ENDFILE_SPEC #define ENDFILE_SPEC "crtend.o%s" #undef LIB_SPEC #define LIB_SPEC "%{!msvr3:%{!shared:-lstaticdgc}} %{!shared:%{!symbolic:-lc}}" #undef LINK_SPEC #define LINK_SPEC "%{z*} %{h*} %{v:-V} \ %{static:-dn -Bstatic} \ %{shared:-G -dy} \ %{symbolic:-Bsymbolic -G -dy} \ %{pg:-L/usr/lib/libp}%{p:-L/usr/lib/libp}" #undef STARTFILE_SPEC #define STARTFILE_SPEC "%(startfile_default)" /* This macro defines names of additional specifications to put in the specs that can be used in various specifications like CC1_SPEC. Its definition is an initializer with a subgrouping for each command option. Each subgrouping contains a string constant, that defines the specification name, and a string constant that used by the GNU CC driver program. Do not define this macro if it does not need to do anything. */ #define EXTRA_SPECS \ { "cpp_cpu", CPP_CPU_SPEC }, \ { "asm_cpu", ASM_CPU_SPEC }, \ { "startfile_default", STARTFILE_DEFAULT_SPEC }, \ { "startfile_crtbegin", STARTFILE_CRTBEGIN_SPEC } /* Keep this left justified, no white space is allowed between the arguments to the -Wc option */ #define ASM_CPU_SPEC "\ %{v:-V}\ %{g:\ %{mno-legend:-Wc,off}\ %{!mno-legend:-Wc,-fix-bb,-s\"%i\"\ %{traditional:,-lc}\ %{!traditional:,-lansi-c}\ %{mstandard:,-keep-std}\ %{mexternal-legend:,-external}\ %{mocs-frame-position:,-ocs}}}" #define CPP_CPU_SPEC "\ %{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \ %{!m88000:%{!m88110:%{m88100:-D__m88100__}}} \ %{!ansi:%{!traditional:-D__OPEN_NAMESPACE__}}" #define STARTFILE_DEFAULT_SPEC "\ %{!shared:%{!symbolic:%{pg:gcrt0.o%s} \ %{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \ %(startfile_crtbegin) \ %{svr4:%{ansi:/lib/values-Xc.o} \ %{!ansi:%{traditional:/lib/values-Xt.o} \ %{!traditional:/usr/lib/values-Xa.o}}}}}" #define STARTFILE_CRTBEGIN_SPEC "\ %{msvr3:m88kdgux.ld%s bcscrtbegin.o%s} \ %{!msvr3:crtbegin.o%s}" #undef GPLUSPLUS_INCLUDE_DIR #define GPLUSPLUS_INCLUDE_DIR "/usr/opt/g++/lib/g++-include" /* Fast DG/UX version of profiler that does not require lots of registers to be stored. */ #undef FUNCTION_PROFILER #define FUNCTION_PROFILER(FILE, LABELNO) \ output_function_profiler (FILE, LABELNO, "gcc.mcount", 0) /* Output the legend info for mxdb when debugging except if standard debugging information only is explicitly requested. */ #undef ASM_FIRST_LINE #define ASM_FIRST_LINE(FILE) \ do { \ if (TARGET_SVR4) \ { \ if (TARGET_88110) \ fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "04.00"); \ else \ fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, "03.00"); \ } \ if (write_symbols != NO_DEBUG && !TARGET_NOLEGEND) \ { \ fprintf (FILE, ";legend_info -fix-bb -h\"gcc-%s\" -s\"%s\"", \ VERSION_STRING, main_input_filename); \ fputs (flag_traditional ? " -lc" : " -lansi-c", FILE); \ if (TARGET_STANDARD) \ fputs (" -keep-std", FILE); \ if (TARGET_EXTERNAL_LEGEND) \ fputs (" -external", FILE); \ if (TARGET_OCS_FRAME_POSITION) \ fputs (" -ocs", FILE); \ fputc ('\n', FILE); \ } \ } while (0) /* Override svr4.h. */ #undef PTRDIFF_TYPE #undef WCHAR_TYPE #undef WCHAR_TYPE_SIZE /* Override svr4.h and m88k.h except when compiling crtstuff.c. These must be constant strings when compiling crtstuff.c. Otherwise, respect the -mversion-STRING option used. */ #undef INIT_SECTION_PREAMBLE #undef INIT_SECTION_ASM_OP #undef FINI_SECTION_ASM_OP #undef CTORS_SECTION_ASM_OP #undef DTORS_SECTION_ASM_OP #if defined (CRT_BEGIN) || defined (CRT_END) || defined (L__main) /* routines to invoke global constructors and destructors are always COFF to enable linking mixed COFF and ELF objects */ #define FINI_SECTION_ASM_OP ("section .fini,\"x\"") #ifndef BCS #define INIT_SECTION_PREAMBLE asm ("\taddu\tr31,r31,0x20") #endif #undef INIT_SECTION_ASM_OP #define INIT_SECTION_ASM_OP ("section\t .init,\"x\"") #undef CTORS_SECTION_ASM_OP #define CTORS_SECTION_ASM_OP ("section\t .ctors,\"d\"") #undef DTORS_SECTION_ASM_OP #define DTORS_SECTION_ASM_OP ("section\t .dtors,\"d\"") #undef OBJECT_FORMAT_ELF #else #undef INIT_SECTION_ASM_OP #define INIT_SECTION_ASM_OP (TARGET_SVR4 \ ? "section\t .init,\"xa\"" \ : "section\t .init,\"x\"") #undef CTORS_SECTION_ASM_OP #define CTORS_SECTION_ASM_OP (TARGET_SVR4 \ ? "section\t .ctors,\"aw\"" \ : "section\t .ctors,\"d\"") #undef DTORS_SECTION_ASM_OP #define DTORS_SECTION_ASM_OP (TARGET_SVR4 \ ? "section\t .dtors,\"aw\"" \ : "section\t .dtors,\"d\"") #endif /* crtstuff.c */ /* The lists of global object constructors and global destructors are always placed in the .ctors/.dtors sections. This requires the use of a link script if the COFF linker is used, but otherwise COFF and ELF objects can be intermixed. A COFF object will pad the section to 16 bytes with zeros; and ELF object will not contain padding. We deal with this by putting a -1 marker at the begin and end of the list and ignoring zero entries. */ /* Mark the end of the .ctors/.dtors sections with a -1. */ #define CTOR_LIST_BEGIN \ asm (CTORS_SECTION_ASM_OP); \ func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) } #define CTOR_LIST_END \ asm (CTORS_SECTION_ASM_OP); \ func_ptr __CTOR_END__[1] = { (func_ptr) (-1) } #define DTOR_LIST_BEGIN \ asm (DTORS_SECTION_ASM_OP); \ func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) } #define DTOR_LIST_END \ asm (DTORS_SECTION_ASM_OP); \ func_ptr __DTOR_END__[1] = { (func_ptr) (-1) } /* Walk the list ignoring NULL entries till we hit the terminating -1. */ #define DO_GLOBAL_CTORS_BODY \ do { \ int i; \ for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \ if (((int *)__CTOR_LIST__)[i] != 0) \ __CTOR_LIST__[i] (); \ } while (0) /* Walk the list looking for the terminating -1 that marks the end. Go backward and ignore any NULL entries. */ #define DO_GLOBAL_DTORS_BODY \ do { \ int i; \ for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \ for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \ if (((int *)__DTOR_LIST__)[i] != 0) \ __DTOR_LIST__[i] (); \ } while (0) /* The maximum alignment which the object file format can support. page alignment would seem to be enough */ #undef MAX_OFILE_ALIGNMENT #define MAX_OFILE_ALIGNMENT 0x1000 /* Must use data section for relocatable constants when pic. */ #undef SELECT_RTX_SECTION #define SELECT_RTX_SECTION(MODE,RTX) \ { \ if (flag_pic && symbolic_operand (RTX)) \ data_section (); \ else \ const_section (); \ }