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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 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. */
-
- #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 : { }
- }
- }
- */
-
- #undef ASM_OUTPUT_LABELREF
- #define ASM_OUTPUT_LABELREF(FILE,NAME) \
- fprintf (FILE, "%s", NAME)
-
- /* 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 "
-