| /* Definitions of target machine for GNU compiler. |
| Motorola m88100 running DG/UX. |
| Copyright (C) 1988, 92, 93, 94, 95, 1996 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: 1.24 $" |
| #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 <varargs.h> and <stdarg.h> 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 } |
| |
| #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 (); \ |
| } |
