Roland McGrath
parent
86d38d25ba
commit
37fe0bc56b
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/* Definitions for Intel 386 running SCO Unix System V 3.2 Version 4.s,
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using dbx-in-coff encapsulation.
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Copyright (C) 1992 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Mostly it's like earlier SCO UNIX. */
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#include "i386/scodbx.h"
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/* Use crt1.o as a startup file and crtn.o as a closing file. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{!r:%{!z:gcc.ifile%s}%{z:gccz.ifile%s}}\
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%{scoxpg3:%{p:mcrt1X.o%s}%{!p:crt1X.o%s}} \
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%{!scoxpg3:\
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%{posix:%{p:mcrt1P.o%s}%{!p:crt1P.o%s}} \
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%{!posix:\
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%{ansi:%{p:mcrt1A.o%s}%{!p:crt1A.o%s}} \
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%{!ansi:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}}"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC \
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"%{scoxpg3:crtnX.o%s} \
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%{!scoxpg3:\
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%{posix:crtnP.o%s} \
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%{!posix:\
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%{ansi:crtnA.o%s} \
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%{!ansi:crtn.o%s}}}"
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/* Library spec. */
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#undef LIB_SPEC
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#define LIB_SPEC \
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"%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} \
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%{scoxpg3:-lcX -lcP -lcA} \
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%{!scoxpg3:\
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%{posix:-lcP -lcA} \
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%{!posix:\
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%{ansi:-lcA} \
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%{!ansi:%{scointl:-lintl} -lc}}}"
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/* Macros, macros everywhere:
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Specify predefined symbols in preprocessor. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Di386 -Dunix"
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#undef CPP_SPEC
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#define CPP_SPEC \
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"-D_M_I386 -D_M_I86 -D_M_I86SM -D_M_SDATA -D_M_STEXT \
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-D_M_UNIX -D_M_XENIX \
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-D_M_SYS5 -D_M_SYSV -D_M_SYS3 -D_M_SYSIII \
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-D_M_COFF -D_M_BITFIELDS -D_M_WORDSWAP \
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%{scoxpg3:-D_XOPEN_SOURCE -D_STRICT_NAMES} \
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%{!scoxpg3:%{posix:-D_POSIX_SOURCE -D_STRICT_NAMES}} \
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%{!scoxpg3:%{!posix:\
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%{ansi:-D_STRICT_NAMES}%{!ansi:\
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-DM_I386 -DM_I86 -DM_I86SM -DM_SDATA -DM_STEXT \
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-DM_UNIX -DM_XENIX \
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-DM_SYS5 -DM_SYSV -DM_SYS3 -DM_SYSIII \
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-DM_COFF -DM_BITFIELDS -DM_WORDSWAP \
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%{scointl:-D_M_INTERNAT -DM_INTERNAT} \
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%{traditional:-D_KR -D_SVID -D_NO_PROTOTYPE}}}}"
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@ -0,0 +1,45 @@
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/*
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* svr3.ifile - for collectless G++ on i386 System V.
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* Leaves memory configured at address 0.
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*
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* Install this file as $prefix/gcc-lib/TARGET/VERSION/gcc.ifile
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*
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* BLOCK to an offset that leaves room for many headers ( the value
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* here allows for a file header, an outheader, and up to 11 section
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* headers on most systems.
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* BIND to an address that includes page 0 in mapped memory. The value
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* used for BLOCK should be or'd into this value. Here I'm setting BLOCK
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* to 0x200 and BIND to ( value_used_for(BLOCK) )
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* If you are using shared libraries, watch that you don't overlap the
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* address ranges assigned for shared libs.
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*
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* GROUP BIND to a location in the next segment. Here, the only value
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* that you should change (I think) is that within NEXT, which I've set
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* to my hardware segment size. You can always use a larger size, but not
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* a smaller one.
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*/
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SECTIONS
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{
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.text BIND(0x000200) BLOCK (0x200) :
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{
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/* plenty for room for headers */
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*(.init)
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*(.text)
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vfork = fork; /* I got tired of editing peoples sloppy code */
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*(.fini)
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}
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GROUP BIND( NEXT(0x400000) + (ADDR(.text) + (SIZEOF(.text)) % 0x1000)):
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{
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.data : {
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__CTOR_LIST__ = . ;
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. += 4 ; /* leading NULL */
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*(.ctor)
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. += 4 ; /* trailing NULL */
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__DTOR_LIST__ = . ;
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. += 4 ; /* leading NULL */
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*(.dtor)
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. += 4 ; /* trailing NULL */
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}
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.bss : { }
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}
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}
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@ -0,0 +1,45 @@
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/*
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* svr3z.ifile - for collectless G++ on i386 System V.
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* Leaves memory unconfigured at address 0.
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*
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* Install this file as $prefix/gcc-lib/TARGET/VERSION/gccz.ifile
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*
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* BLOCK to an offset that leaves room for many headers ( the value
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* here allows for a file header, an outheader, and up to 11 section
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* headers on most systems.
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* BIND to an address that excludes page 0 from being mapped. The value
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* used for BLOCK should be or'd into this value. Here I'm setting BLOCK
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* to 0x200 and BIND to ( 0x400000 | value_used_for(BLOCK) )
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* If you are using shared libraries, watch that you don't overlap the
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* address ranges assigned for shared libs.
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*
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* GROUP BIND to a location in the next segment. Here, the only value
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* that you should change (I think) is that within NEXT, which I've set
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* to my hardware segment size. You can always use a larger size, but not
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* a smaller one.
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*/
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SECTIONS
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{
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.text BIND(0x400200) BLOCK (0x200) :
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{
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/* plenty for room for headers */
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*(.init)
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*(.text)
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vfork = fork; /* I got tired of editing peoples sloppy code */
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*(.fini)
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}
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GROUP BIND( NEXT(0x400000) + (ADDR(.text) + (SIZEOF(.text)) % 0x1000)):
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{
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.data : {
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__CTOR_LIST__ = . ;
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. += 4 ; /* leading NULL */
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*(.ctor)
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. += 4 ; /* trailing NULL */
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__DTOR_LIST__ = . ;
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. += 4 ; /* leading NULL */
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*(.dtor)
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. += 4 ; /* trailing NULL */
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}
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.bss : { }
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}
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}
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@ -0,0 +1,79 @@
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/* Definitions for Intel 386 running system V, using gas.
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Copyright (C) 1992 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "gas.h"
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/* Add stuff that normally comes from i386v.h */
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/* longjmp may fail to restore the registers if called from the same
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function that called setjmp. To compensate, the compiler avoids
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putting variables in registers in functions that use both setjmp
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and longjmp. */
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#define NON_SAVING_SETJMP \
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(current_function_calls_setjmp && current_function_calls_longjmp)
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/* longjmp may fail to restore the stack pointer if the saved frame
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pointer is the same as the caller's frame pointer. Requiring a frame
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pointer in any function that calls setjmp or longjmp avoids this
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problem, unless setjmp and longjmp are called from the same function.
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Since a frame pointer will be required in such a function, it is OK
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that the stack pointer is not restored. */
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#undef FRAME_POINTER_REQUIRED
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#define FRAME_POINTER_REQUIRED \
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(current_function_calls_setjmp || current_function_calls_longjmp)
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/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */
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#undef ASM_OUTPUT_LOCAL
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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do { \
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int align = exact_log2 (ROUNDED); \
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if (align > 2) align = 2; \
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if (TARGET_SVR3_SHLIB) \
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{ \
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data_section (); \
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ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \
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ASM_OUTPUT_LABEL ((FILE), (NAME)); \
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fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \
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} \
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else \
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{ \
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fputs (".lcomm ", (FILE)); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u\n", (ROUNDED)); \
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} \
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} while (0)
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/* Add stuff that normally comes from i386v.h via svr3.h */
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/* Define the actual types of some ANSI-mandated types. These
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definitions should work for most SVR3 systems. */
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "long int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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