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/* Definitions of target machine for GNU compiler, Citicorp/TTI Unicom PBD
version (using GAS and COFF (encapsulated is unacceptable) )
Copyright (C) 1990, 1996 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, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "sparc/sparc.h"
/* Names to predefine in the preprocessor for this target machine. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-Dsparc -DUnicomPBD -Dunix -D__GCC_NEW_VARARGS__ -Asystem(unix) -Acpu(sparc) -Amachine(sparc)"
/* 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
/* we use /lib/libp/lib* when profiling */
#undef LIB_SPEC
#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
/* 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 : { }
}
}
*/
/* The prefix to add to user-visible assembler symbols. */
#undef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
/* fixes: */
/*
* Internal labels are prefixed with a period.
*/
/* This is how to store into the string LABEL
the symbol_ref name of an internal numbered label where
PREFIX is the class of label and NUM is the number within the class.
This is suitable for output with `assemble_name'. */
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf (LABEL, "*.%s%d", PREFIX, NUM)
/* This is how to output an internal numbered label where
PREFIX is the class of label and NUM is the number within the class. */
#undef ASM_OUTPUT_INTERNAL_LABEL
#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
/* This is how to output an element of a case-vector that is relative. */
#undef ASM_OUTPUT_ADDR_DIFF_ELT
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \
fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
/* This is how to output an element of a case-vector that is absolute.
(The 68000 does not use such vectors,
but we must define this macro anyway.) */
#undef ASM_OUTPUT_ADDR_VEC_ELT
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
fprintf (FILE, "\t.word .L%d\n", VALUE)
/* Output assembler code to FILE to increment profiler label # LABELNO
for profiling a function entry. */
#undef FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO) \
fprintf (FILE, "\tsethi %%hi(.LP%d),%%o0\n\tcall mcount\n\tor %%lo(.LP%d),%%o0,%%o0\n", \
(LABELNO), (LABELNO))
/* Output assembler code to FILE to initialize this source file's
basic block profiling info, if that has not already been done. */
#undef FUNCTION_BLOCK_PROFILER
#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \
fprintf (FILE, "\tsethi %%hi(.LPBX0),%%o0\n\tld [%%lo(.LPBX0)+%%o0],%%o1\n\ttst %%o1\n\tbne .LPY%d\n\tnop\n\tcall ___bb_init_func\n\tnop\n.LPY%d:\n", \
(LABELNO), (LABELNO))
/* Output assembler code to FILE to increment the entry-count for
the BLOCKNO'th basic block in this source file. */
#undef BLOCK_PROFILER
#define BLOCK_PROFILER(FILE, BLOCKNO) \
{ \
int blockn = (BLOCKNO); \
fprintf (FILE, "\tsethi %%hi(.LPBX2+%d),%%g1\n\tld [%%lo(.LPBX2+%d)+%%g1],%%g2\n\
\tadd %%g2,1,%%g2\n\tst %%g2,[%%lo(.LPBX2+%d)+%%g1]\n", \
4 * blockn, 4 * blockn, 4 * blockn); \
CC_STATUS_INIT; /* We have clobbered %g1. Also %g2. */ \
}
/* This is needed for SunOS 4.0, and should not hurt for 3.2
versions either. */
#undef ASM_OUTPUT_SOURCE_LINE(file, line)
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
{ static int sym_lineno = 1; \
fprintf (file, ".stabn 68,0,%d,.LM%d\n.LM%d:\n", \
line, sym_lineno, sym_lineno); \
sym_lineno += 1; }
#define ASM_INT_OP ".long "
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