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https://github.com/pmret/gcc-papermario.git
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163 lines
4.5 KiB
C
163 lines
4.5 KiB
C
/* Definitions of target machine for GNU compiler. Clipper/Clix version.
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Copyright (C) 1988, 1993, 1996, 1997 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, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Names to predefine in the preprocessor for this target machine. */
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#define CPP_PREDEFINES "-Dclipper -Dunix -Asystem(unix) -Asystem(svr3) -Acpu(clipper) -Amachine(clipper)"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
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#undef LIB_SPEC
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#define TARGET_MEM_FUNCTIONS
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#undef HAVE_ATEXIT
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#define HAVE_ATEXIT
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#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
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do { \
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unsigned char *s; \
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int i; \
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for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \
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{ \
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if ((i % 8) == 0) \
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fputs ("\n\t.byte\t", (FILE)); \
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fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
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} \
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fputs ("\n", (FILE)); \
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} while (0)
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#undef ASM_OUTPUT_DOUBLE
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#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
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{ \
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union { int i[2]; double d; } _d_; \
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_d_.d = VALUE; \
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fprintf (FILE, "\t.long 0x%08x,0x%08x\n", _d_.i[0],_d_.i[1]); \
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}
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#undef ASM_OUTPUT_FLOAT
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#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
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{ \
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union { int i; float f; } _f_; \
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_f_.f = VALUE; \
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fprintf (FILE, "\t.long 0x%08x\n", _f_.i); \
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}
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/* This is how to output an assembler line
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that says to advance the location counter
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to a multiple of 2**LOG bytes. */
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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fprintf(FILE, "\t.align %d\n", 1 << (LOG))
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#define ASM_LONG ".long"
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#define BSS_SECTION_ASM_OP ".bss"
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP ".section .init,\"x\""
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/* Define a few machine-specific details of the implementation of
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constructors.
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The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
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and CTOR_LIST_END to contribute to the .init section an instruction to
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push a word containing 0 (or some equivalent of that).
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ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the
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constructor. */
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#define CTOR_LIST_BEGIN \
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asm (INIT_SECTION_ASM_OP); \
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asm ("subq $8,sp"); \
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asm ("loadq $0,r0"); \
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asm ("storw r0,(sp)")
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/* don't need end marker */
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#undef CTOR_LIST_END
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#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
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do { \
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init_section (); \
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fputs ("\tloada ", FILE); \
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assemble_name (FILE, NAME); \
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fputs (",r0\n\tsubq $8,sp\n\tstorw r0,(sp)\n", FILE); \
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} while (0)
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/* fini psect is 8 aligned */
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#define DTOR_LIST_BEGIN \
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asm (DTORS_SECTION_ASM_OP); \
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func_ptr __DTOR_LIST__[2] = { (func_ptr) (-1), 0 };
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/* A C statement (sans semicolon) to output an element in the table of
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global destructors. */
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#undef ASM_OUTPUT_DESTRUCTOR
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#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
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do { \
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fini_section (); \
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fprintf (FILE, "%s\t ", ASM_LONG); \
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assemble_name (FILE, NAME); \
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fprintf (FILE, ",0\n"); \
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} while (0)
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/* On clix crt1.o first calls init code and then sets environ and a valid
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chrclass. Unfortunately stdio routines bomb with unset chrclass.
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Therefore we set chrclass prior to calling global constructors. */
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#undef DO_GLOBAL_CTORS_BODY
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#define DO_GLOBAL_CTORS_BODY \
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do { \
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func_ptr *p, *beg = alloca (0); \
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_setchrclass (0); \
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for (p = beg; *p; p+=2) \
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; \
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while (p != beg) \
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{ p-= 2; (*p) (); } \
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} while (0)
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#undef DO_GLOBAL_DTORS_BODY
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#define DO_GLOBAL_DTORS_BODY \
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func_ptr *f = &__DTOR_LIST__[2]; /* 0,1 contains -1,0 */ \
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int n = 0; \
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while (*f) \
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{ \
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f+= 2; /* skip over alignment 0 */ \
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n++; \
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} \
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f -= 2; \
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while (--n >= 0) \
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{ \
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(*f) (); \
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f-= 2; /* skip over alignment 0 */ \
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}
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