-/* Target definitions for GNU compiler for Intel 80386 using ELF
- Copyright (C) 1988, 1991, 1995, 2000, 2001 Free Software Foundation, Inc.
+/* Target definitions for GCC for Intel 80386 using ELF
+ Copyright (C) 1988-2024 Free Software Foundation, Inc.
Derived from sysv4.h written by Ron Guilmette (rfg@netcom.com).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC 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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-/* Use stabs instead of DWARF debug format. */
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (i386 bare ELF target)");
-
-/* By default, target has a 80387, uses IEEE compatible arithmetic,
- and returns float values in the 387. */
-
-#define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
-
-/* The ELF ABI for the i386 says that records and unions are returned
- in memory. */
-
-#undef RETURN_IN_MEMORY
-#define RETURN_IN_MEMORY(TYPE) \
- (TYPE_MODE (TYPE) == BLKmode \
- || (VECTOR_MODE_P (TYPE_MODE (TYPE)) && int_size_in_bytes (TYPE) == 8))
-
-/* This used to define X86, but james@bigtex.cactus.org says that
- is supposed to be defined optionally by user programs--not by default. */
-#define CPP_PREDEFINES ""
+/* Define DEFAULT_PCC_STRUCT_RETURN to 1 because the i386 SVR4 ABI returns
+ records and unions in memory. ix86_option_override_internal will overide
+ this flag when compiling 64-bit code as we never do pcc_struct_return
+ scheme on x86-64. */
+#undef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
#undef CPP_SPEC
-#define CPP_SPEC "%(cpp_cpu)"
-
-/* This is how to output assembly code to define a `float' constant.
- We always have to use a .long pseudo-op to do this because the native
- SVR4 ELF assembler is buggy and it generates incorrect values when we
- try to use the .float pseudo-op instead. */
-
-#undef ASM_OUTPUT_FLOAT
-#define ASM_OUTPUT_FLOAT(FILE,VALUE) \
-do { long value; \
- REAL_VALUE_TO_TARGET_SINGLE ((VALUE), value); \
- if (sizeof (int) == sizeof (long)) \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value); \
- else \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value); \
- } while (0)
-
-/* This is how to output assembly code to define a `double' constant.
- We always have to use a pair of .long pseudo-ops to do this because
- the native SVR4 ELF assembler is buggy and it generates incorrect
- values when we try to use the the .double pseudo-op instead. */
+#define CPP_SPEC ""
-#undef ASM_OUTPUT_DOUBLE
-#define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
-do { long value[2]; \
- REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), value); \
- if (sizeof (int) == sizeof (long)) \
- { \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value[0]); \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value[1]); \
- } \
- else \
- { \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value[0]); \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value[1]); \
- } \
- } while (0)
+#define ENDFILE_SPEC "crtend.o%s"
+#define STARTFILE_SPEC "%{!shared: \
+ %{!symbolic: \
+ %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
+ crtbegin.o%s"
-#undef ASM_OUTPUT_LONG_DOUBLE
-#define ASM_OUTPUT_LONG_DOUBLE(FILE,VALUE) \
-do { long value[3]; \
- REAL_VALUE_TO_TARGET_LONG_DOUBLE ((VALUE), value); \
- if (sizeof (int) == sizeof (long)) \
- { \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value[0]); \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value[1]); \
- fprintf((FILE), "%s0x%x\n", ASM_LONG, value[2]); \
- } \
- else \
- { \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value[0]); \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value[1]); \
- fprintf((FILE), "%s0x%lx\n", ASM_LONG, value[2]); \
- } \
- } while (0)
-
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(n) \
- (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
-
-/* The routine used to output sequences of byte values. We use a special
- version of this for most svr4 targets because doing so makes the
- generated assembly code more compact (and thus faster to assemble)
- as well as more readable. Note that if we find subparts of the
- character sequence which end with NUL (and which are shorter than
- STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
-
-#undef ASM_OUTPUT_ASCII
-#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
- do \
- { \
- register const unsigned char *_ascii_bytes = \
- (const unsigned char *) (STR); \
- register const unsigned char *limit = _ascii_bytes + (LENGTH); \
- register unsigned bytes_in_chunk = 0; \
- for (; _ascii_bytes < limit; _ascii_bytes++) \
- { \
- register const unsigned char *p; \
- if (bytes_in_chunk >= 64) \
- { \
- fputc ('\n', (FILE)); \
- bytes_in_chunk = 0; \
- } \
- for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
- continue; \
- if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
- { \
- if (bytes_in_chunk > 0) \
- { \
- fputc ('\n', (FILE)); \
- bytes_in_chunk = 0; \
- } \
- ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
- _ascii_bytes = p; \
- } \
- else \
- { \
- if (bytes_in_chunk == 0) \
- fprintf ((FILE), "\t.byte\t"); \
- else \
- fputc (',', (FILE)); \
- fprintf ((FILE), "0x%02x", *_ascii_bytes); \
- bytes_in_chunk += 5; \
- } \
- } \
- if (bytes_in_chunk > 0) \
- fprintf ((FILE), "\n"); \
- } \
- while (0)
-
-/* This is how to output an element of a case-vector that is relative.
- This is only used for PIC code. See comments by the `casesi' insn in
- i386.md for an explanation of the expression this outputs. */
-
-#undef ASM_OUTPUT_ADDR_DIFF_ELT
-#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
- fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
-
-/* Indicate that jump tables go in the text section. This is
- necessary when compiling PIC code. */
-
-#define JUMP_TABLES_IN_TEXT_SECTION 1
+#undef DEBUGGER_REGNO
+#define DEBUGGER_REGNO(n) \
+ (TARGET_64BIT ? debugger64_register_map[n] : svr4_debugger_register_map[n])
#define LOCAL_LABEL_PREFIX "."
-/* A C statement to output something to the assembler file to switch to section
- NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
- NULL_TREE. Some target formats do not support arbitrary sections. Do not
- define this macro in such cases. */
+/* Switch into a generic section. */
+#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
-#undef ASM_OUTPUT_SECTION_NAME
-#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
-do { \
- if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
- fprintf (FILE, ".section\t%s,\"ax\"\n", (NAME)); \
- else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
- fprintf (FILE, ".section\t%s,\"a\"\n", (NAME)); \
- else \
- fprintf (FILE, ".section\t%s,\"aw\"\n", (NAME)); \
-} while (0)
-
-/* If defined, a C expression whose value is a string containing the
- assembler operation to identify the following data as
- uninitialized global data. If not defined, and neither
- `ASM_OUTPUT_BSS' nor `ASM_OUTPUT_ALIGNED_BSS' are defined,
- uninitialized global data will be output in the data section if
- `-fno-common' is passed, otherwise `ASM_OUTPUT_COMMON' will be
- used. */
#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
-/* Like `ASM_OUTPUT_BSS' except takes the required alignment as a
- separate, explicit argument. If you define this macro, it is used
- in place of `ASM_OUTPUT_BSS', and gives you more flexibility in
- handling the required alignment of the variable. The alignment is
- specified as the number of bits.
-
- Try to use function `asm_output_aligned_bss' defined in file
- `varasm.c' when defining this macro. */
#undef ASM_OUTPUT_ALIGNED_BSS
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
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