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authorYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
committerYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
commitbe8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch)
tree726e2468c0c07add773c0dbd86ab6386844259ae /gcc/config/i860/sysv3.h
initial commit
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diff --git a/gcc/config/i860/sysv3.h b/gcc/config/i860/sysv3.h
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+/* Target definitions for GNU compiler for Intel 80860 running System V.3
+ Copyright (C) 1991, 1996 Free Software Foundation, Inc.
+ Contributed by Ron Guilmette (rfg@monkeys.com).
+
+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. */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (i860, System V Release 3)")
+
+/* Provide a set of pre-definitions and pre-assertions appropriate for
+ the i860 running svr3. */
+#define CPP_PREDEFINES "-Di860 -Dunix -D__svr3__ -Asystem(unix) -Asystem(svr3) -Acpu(i860) -Amachine(i860)"
+
+/* Use crt1.o as a startup file and crtn.o as a closing file. */
+
+#define STARTFILE_SPEC \
+ "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
+
+#define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc crtn.o%s"
+
+/* Special flags for the linker. I don't know what they do. */
+
+#define LINK_SPEC "%{T*} %{z:-lm}"
+
+/* The prefix to be used in assembler output for all names of registers.
+ None is needed in V.3. */
+
+#define I860_REG_PREFIX ""
+
+/* Delimiter that starts comments in the assembler code. */
+
+#define ASM_COMMENT_START "//"
+
+/* Don't renumber the regusters for debugger output. */
+
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+/* Output the special word the System V SDB wants to see just before
+ the first word of each function's prologue code. */
+
+extern char *current_function_original_name;
+
+/* This special macro is used to output a magic word just before the
+ first word of each function. On some versions of UNIX running on
+ the i860, this word can be any word that looks like a NOP, however
+ under svr4, this neds to be an `shr r0,r0,r0' instruction in which
+ the normally unused low-order bits contain the length of the function
+ prologue code (in bytes). This is needed to make the System V SDB
+ debugger happy. */
+
+#undef ASM_OUTPUT_FUNCTION_PREFIX
+#define ASM_OUTPUT_FUNCTION_PREFIX(FILE, FNNAME) \
+ do { ASM_OUTPUT_ALIGN (FILE, 2); \
+ fprintf ((FILE), "\t.long\t.ep."); \
+ assemble_name (FILE, FNNAME); \
+ fprintf (FILE, "-"); \
+ assemble_name (FILE, FNNAME); \
+ fprintf (FILE, "+0xc8000000\n"); \
+ current_function_original_name = (FNNAME); \
+ } while (0)
+
+/* Output the special label that must go just after each function's
+ prologue code to support svr4 SDB. */
+
+#define ASM_OUTPUT_PROLOGUE_SUFFIX(FILE) \
+ do { fprintf (FILE, ".ep."); \
+ assemble_name (FILE, current_function_original_name); \
+ fprintf (FILE, ":\n"); \
+ } while (0)
+
+/* This says how to output an assembler line
+ to define a local common symbol.
+ The difference from svr3.h is we don't limit align to 2. */
+
+#undef ASM_OUTPUT_LOCAL
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
+ do { \
+ int align = exact_log2 (ROUNDED); \
+ data_section (); \
+ ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \
+ ASM_OUTPUT_LABEL ((FILE), (NAME)); \
+ fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \
+ } while (0)
+
+/* The routine used to output string literals.
+
+#define ASCII_DATA_ASM_OP ".byte"
+
+#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
+ do \
+ { \
+ register unsigned char *str = (unsigned char *) (STR); \
+ register unsigned char *limit = str + (LENGTH); \
+ register unsigned bytes_in_chunk = 0; \
+ for (; str < limit; str++) \
+ { \
+ register unsigned ch = *str; \
+ if (ch < 32 || ch == '\\' || ch == '"' || ch >= 127) \
+ { \
+ if (bytes_in_chunk > 0) \
+ { \
+ fprintf ((FILE), "\"\n"); \
+ bytes_in_chunk = 0; \
+ } \
+ fprintf ((FILE), "\t%s\t%d\n", ASM_BYTE_OP, ch); \
+ } \
+ else \
+ { \
+ if (bytes_in_chunk >= 60) \
+ { \
+ fprintf ((FILE), "\"\n"); \
+ bytes_in_chunk = 0; \
+ } \
+ if (bytes_in_chunk == 0) \
+ fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \
+ putc (ch, (FILE)); \
+ bytes_in_chunk++; \
+ } \
+ } \
+ if (bytes_in_chunk > 0) \
+ fprintf ((FILE), "\"\n"); \
+ } \
+ while (0)
+
+
+#undef CTORS_SECTION_ASM_OP
+#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"x\""
+#undef DTORS_SECTION_ASM_OP
+#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"x\""
+
+/* Add definitions to support the .tdesc section as specified in the svr4
+ ABI for the i860. */
+
+#define TDESC_SECTION_ASM_OP ".section\t.tdesc"
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_tdesc
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+ CONST_SECTION_FUNCTION \
+ CTORS_SECTION_FUNCTION \
+ DTORS_SECTION_FUNCTION \
+ TDESC_SECTION_FUNCTION
+
+#define TDESC_SECTION_FUNCTION \
+void \
+tdesc_section () \
+{ \
+ if (in_section != in_tdesc) \
+ { \
+ fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \
+ in_section = in_tdesc; \
+ } \
+}
+
+/* Enable the `const' section that svr3.h defines how to use. */
+#undef USE_CONST_SECTION
+#define USE_CONST_SECTION 1