entered into RCS
From-SVN: r446
This commit is contained in:
Richard Stallman
parent
18ca7dab53
commit
0c8d4ff0b5
154
gcc/config/m68k/pbb.h
Normal file
154
gcc/config/m68k/pbb.h
Normal file
@ -0,0 +1,154 @@
|
||||
/* Definitions of target machine for GNU compiler.
|
||||
|
||||
Citicorp/TTI Unicom PBB version (using GAS with a %-register prefix)
|
||||
|
||||
Copyright (C) 1987, 1988, 1990 Free Software Foundation, Inc.
|
||||
|
||||
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
/* Note: This config uses a version of gas with a postprocessing stage that
|
||||
converts the output of gas to coff containing stab debug symbols.
|
||||
(See vasta@apollo.com or mb@soldev.tti.com) */
|
||||
|
||||
#include "m68k.h"
|
||||
|
||||
/* See m68k.h. 5 means 68020 without 68881. */
|
||||
|
||||
#define TARGET_DEFAULT 5
|
||||
|
||||
/* Every structure or union's size must be a multiple of 2 bytes. */
|
||||
#define STRUCTURE_SIZE_BOUNDARY 16
|
||||
|
||||
/* Define __HAVE_68881__ in preprocessor if -m68881 is specified.
|
||||
This will control the use of inline 68881 insns in certain macros. */
|
||||
|
||||
#define CPP_SPEC "%{m68881:-D__HAVE_68881__}"
|
||||
|
||||
/* Names to predefine in the preprocessor for this target machine. */
|
||||
|
||||
#define CPP_PREDEFINES "-Dm68k -Dunix -DUnicomPBB -Dmc68k -Dmc68020 -Dmc68k32"
|
||||
|
||||
/* We want DBX format for use with gdb under COFF. */
|
||||
|
||||
#define DBX_DEBUGGING_INFO
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
|
||||
#define TARGET_MEM_FUNCTIONS
|
||||
|
||||
/* -m68000 requires special flags to the assembler. */
|
||||
|
||||
#define ASM_SPEC \
|
||||
" %{m68000:-mc68010}%{mc68000:-mc68010}"
|
||||
|
||||
/* we use /lib/libp/lib* when profiling */
|
||||
|
||||
#define LIB_SPEC "%{p:-L/usr/lib/libp} %{pg:-L/usr/lib/libp} -lc"
|
||||
|
||||
|
||||
/* Use crt1.o as a startup file and crtn.o as a closing file. */
|
||||
/*
|
||||
* The loader directive file gcc.ifile defines how to merge the constructor
|
||||
* sections into the data section. Also, since gas only puts out those
|
||||
* sections in response to N_SETT stabs, and does not (yet) have a
|
||||
* ".sections" directive, gcc.ifile also defines the list symbols
|
||||
* __DTOR_LIST__ and __CTOR_LIST__.
|
||||
*
|
||||
* Finally, we must explicitly specify the file from libgcc.a that defines
|
||||
* exit(), otherwise if the user specifies (for example) "-lc_s" on the
|
||||
* command line, the wrong exit() will be used and global destructors will
|
||||
* not get called .
|
||||
*/
|
||||
|
||||
#define STARTFILE_SPEC \
|
||||
"%{!r: gcc.ifile%s} %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
|
||||
%{!r:_exit.o%s}"
|
||||
|
||||
#define ENDFILE_SPEC "crtn.o%s"
|
||||
|
||||
/* cpp has to support a #sccs directive for the /usr/include files */
|
||||
|
||||
#define SCCS_DIRECTIVE
|
||||
|
||||
/* GAS register prefix assembly syntax: */
|
||||
|
||||
/* User labels have no prefix */
|
||||
#undef USER_LABEL_PREFIX
|
||||
#define USER_LABEL_PREFIX ""
|
||||
|
||||
/* local labels are prefixed with ".L" */
|
||||
#undef LOCAL_LABEL_PREFIX
|
||||
#define LOCAL_LABEL_PREFIX "."
|
||||
|
||||
/* registers are prefixed with "%" */
|
||||
#undef REGISTER_PREFIX
|
||||
#define REGISTER_PREFIX "%"
|
||||
|
||||
#undef REGISTER_NAMES
|
||||
#define REGISTER_NAMES \
|
||||
{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
|
||||
"%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
|
||||
"%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"}
|
||||
|
||||
#undef FUNCTION_EXTRA_EPILOGUE
|
||||
#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \
|
||||
{ extern int current_function_returns_pointer; \
|
||||
if ((current_function_returns_pointer) && \
|
||||
! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \
|
||||
asm_fprintf (FILE, "\tmovl %Rd0,%Ra0\n"); }
|
||||
|
||||
#define ASM_RETURN_CASE_JUMP return "jmp %%pc@(2,%0:w)"
|
||||
|
||||
/* Although the gas we use can create .ctor and .dtor sections from N_SETT
|
||||
stabs, it does not support section directives, so we need to have the loader
|
||||
define the lists.
|
||||
*/
|
||||
#define CTOR_LISTS_DEFINED_EXTERNALLY
|
||||
|
||||
/* similar to default, but allows for the table defined by ld with gcc.ifile.
|
||||
nptrs is always 0. So we need to instead check that __DTOR_LIST__[1] != 0.
|
||||
The old check is left in so that the same macro can be used if and when
|
||||
a future version of gas does support section directives. */
|
||||
|
||||
#define DO_GLOBAL_DTORS_BODY {int nptrs = *(int *)__DTOR_LIST__; int i; \
|
||||
if (nptrs == -1 || (__DTOR_LIST__[0] == 0 && __DTOR_LIST__[1] != 0)) \
|
||||
for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++); \
|
||||
for (i = nptrs; i >= 1; i--) \
|
||||
__DTOR_LIST__[i] (); }
|
||||
|
||||
/*
|
||||
* Here is an example gcc.ifile. I've tested it on PBB 68k and on sco 386
|
||||
* systems. The NEXT(0x200000) works on just about all 386 and m68k systems,
|
||||
* but can be reduced to any power of 2 that is >= NBPS (0x10000 on a pbb).
|
||||
|
||||
SECTIONS {
|
||||
.text BIND(0x200200) BLOCK (0x200) :
|
||||
{ *(.init) *(.text) vfork = fork; *(.fini) }
|
||||
|
||||
GROUP BIND( NEXT(0x200000) + ADDR(.text) + SIZEOF(.text)):
|
||||
{ .data : { __CTOR_LIST__ = . ; . += 4; *(.ctor) . += 4 ;
|
||||
__DTOR_LIST__ = . ; . += 4; *(.dtor) . += 4 ; }
|
||||
.bss : { }
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
/*
|
||||
Local variables:
|
||||
version-control: t
|
||||
End:
|
||||
*/
|
||||
@ -31,7 +31,6 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
/* We want DBX format for use with gdb under COFF. */
|
||||
|
||||
#define DBX_DEBUGGING_INFO
|
||||
#define DBX_IN_COFF
|
||||
|
||||
/* Generate calls to memcpy, memcmp and memset. */
|
||||
|
||||
@ -40,25 +39,71 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
/* we use /lib/libp/lib* when profiling */
|
||||
|
||||
#undef LIB_SPEC
|
||||
#define LIB_SPEC "%{!shlib:%{p:-L/lib/libp} %{pg:-L/lib/libp} -lc} \
|
||||
%{shlib:-lc_s crtn.o%s }"
|
||||
#define LIB_SPEC "%{p:-L/usr/lib/libp} %{pg:-L/usr/lib/libp} -lc"
|
||||
|
||||
/* shared libraries need to use crt1.o */
|
||||
|
||||
#ifdef USE_GPLUS_IFILE
|
||||
/* Use crt1.o as a startup file and crtn.o as a closing file. */
|
||||
/*
|
||||
* The loader directive file gcc.ifile defines how to merge the constructor
|
||||
* sections into the data section. Also, since gas only puts out those
|
||||
* sections in response to N_SETT stabs, and does not (yet) have a
|
||||
* ".sections" directive, gcc.ifile also defines the list symbols
|
||||
* __DTOR_LIST__ and __CTOR_LIST__.
|
||||
*
|
||||
* Finally, we must explicitly specify the file from libgcc.a that defines
|
||||
* exit(), otherwise if the user specifies (for example) "-lc_s" on the
|
||||
* command line, the wrong exit() will be used and global destructors will
|
||||
* not get called .
|
||||
*/
|
||||
|
||||
#define STARTFILE_SPEC \
|
||||
"g++.ifile%s %{!shlib:%{pg:mcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}\
|
||||
%{shlib:crt1.o%s } "
|
||||
#else
|
||||
#define STARTFILE_SPEC \
|
||||
"%{!shlib:%{pg:mcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}\
|
||||
%{shlib:crt1.o%s } "
|
||||
#endif
|
||||
"%{!r: gcc.ifile%s} %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
|
||||
%{!r:_exit.o%s}"
|
||||
|
||||
#define ENDFILE_SPEC "crtn.o%s"
|
||||
|
||||
/* cpp has to support a #sccs directive for the /usr/include files */
|
||||
|
||||
#define SCCS_DIRECTIVE
|
||||
|
||||
/* LINK_SPEC is needed only for Sunos 4. */
|
||||
|
||||
#undef LINK_SPEC
|
||||
|
||||
/* Although the gas we use can create .ctor and .dtor sections from N_SETT
|
||||
stabs, it does not support section directives, so we need to have the loader
|
||||
define the lists.
|
||||
*/
|
||||
#define CTOR_LISTS_DEFINED_EXTERNALLY
|
||||
|
||||
/* similar to default, but allows for the table defined by ld with gcc.ifile.
|
||||
nptrs is always 0. So we need to instead check that __DTOR_LIST__[1] != 0.
|
||||
The old check is left in so that the same macro can be used if and when
|
||||
a future version of gas does support section directives. */
|
||||
|
||||
#define DO_GLOBAL_DTORS_BODY {int nptrs = *(int *)__DTOR_LIST__; int i; \
|
||||
if (nptrs == -1 || (__DTOR_LIST__[0] == 0 && __DTOR_LIST__[1] != 0)) \
|
||||
for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++); \
|
||||
for (i = nptrs; i >= 1; i--) \
|
||||
__DTOR_LIST__[i] (); }
|
||||
|
||||
/*
|
||||
* Here is an example gcc.ifile. I've tested it on PBD sparc
|
||||
* systems. The NEXT(0x200000) works on just about all 386 and m68k systems,
|
||||
* but can be reduced to any power of 2 that is >= NBPS (0x40000 on a pbd).
|
||||
|
||||
SECTIONS {
|
||||
.text BIND(0x41000200) BLOCK (0x200) :
|
||||
{ *(.init) *(.text) vfork = fork; *(.fini) }
|
||||
|
||||
GROUP BIND( NEXT(0x200000) + ADDR(.text) + SIZEOF(.text)):
|
||||
{ .data : { __CTOR_LIST__ = . ; . += 4; *(.ctor) . += 4 ;
|
||||
__DTOR_LIST__ = . ; . += 4; *(.dtor) . += 4 ; }
|
||||
.bss : { }
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
#ifndef __GNUC__
|
||||
#define USE_C_ALLOCA
|
||||
#endif
|
||||
@ -105,7 +150,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
|
||||
fprintf (FILE, "\t.word .L%d\n", VALUE)
|
||||
|
||||
/* Underscores are not used on Unicom PBB coff systems. */
|
||||
/* Underscores are not used on Unicom PBD coff systems. */
|
||||
/* This currently seems to only be needed for libgcc2.a */
|
||||
#define NO_UNDERSCORES
|
||||
|
||||
/* Output assembler code to FILE to increment profiler label # LABELNO
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user