From e0b72480ae6a547517d59d9ca8cad6a7e474448b Mon Sep 17 00:00:00 2001 From: rahnds Date: Sun, 22 Dec 1996 18:52:24 +0000 Subject: [PATCH] additional files needed for gcc support for powerpc. --- gnu/usr.bin/gcc/config/rs6000/openbsd.h | 825 +++++++++++++++++++++ gnu/usr.bin/gcc/config/rs6000/t-openbsd | 28 + gnu/usr.bin/gcc/config/rs6000/xm-openbsd.h | 4 + gnu/usr.bin/gcc/config/rs6000/xm-powerpc.h | 41 + 4 files changed, 898 insertions(+) create mode 100644 gnu/usr.bin/gcc/config/rs6000/openbsd.h create mode 100644 gnu/usr.bin/gcc/config/rs6000/t-openbsd create mode 100644 gnu/usr.bin/gcc/config/rs6000/xm-openbsd.h create mode 100644 gnu/usr.bin/gcc/config/rs6000/xm-powerpc.h diff --git a/gnu/usr.bin/gcc/config/rs6000/openbsd.h b/gnu/usr.bin/gcc/config/rs6000/openbsd.h new file mode 100644 index 00000000000..631c2de6fe3 --- /dev/null +++ b/gnu/usr.bin/gcc/config/rs6000/openbsd.h @@ -0,0 +1,825 @@ +/* Target definitions for GNU compiler for PowerPC running System V.4 + Copyright (C) 1995, Free Software Foundation, Inc. + Contributed by Cygnus Support. + +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. */ + +/* eABI local switches -- put here rather than eabi.h, so the switches + can be tested in macros. */ + +#define MASK_NO_BITFIELD_TYPE 0x40000000 /* Set PCC_BITFIELD_TYPE_MATTERS to 0 */ +#define MASK_STRICT_ALIGN 0x20000000 /* Set STRICT_ALIGNMENT to 1. */ +#define MASK_RELOCATABLE 0x10000000 /* GOT pointers are PC relative */ +#define MASK_NO_TRACEBACK 0x08000000 /* eliminate traceback words */ +#define MASK_LITTLE_ENDIAN 0x04000000 /* target is little endian */ +#define MASK_AIX_CALLS 0x02000000 /* Use AIX calling sequence */ +#define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args */ + +#define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE) +#define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN) +#define TARGET_RELOCATABLE (target_flags & MASK_RELOCATABLE) +#define TARGET_NO_TRACEBACK (target_flags & MASK_NO_TRACEBACK) +#define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN) +#define TARGET_AIX_CALLS (target_flags & MASK_AIX_CALLS) +#define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE) +#define TARGET_TOC (target_flags & (MASK_64BIT \ + | MASK_RELOCATABLE \ + | MASK_MINIMAL_TOC)) + +#define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE) +#define TARGET_TRACEBACK (! TARGET_NO_TRACEBACK) +#define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) +#define TARGET_NO_AIX_CALLS (! TARGET_AIX_CALLS) +#define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE) +#define TARGET_NO_TOC (! TARGET_TOC) + +#define TARGET_V4_CALLS TARGET_NO_AIX_CALLS + +/* Pseudo target to indicate whether the object format is ELF + (to get around not having conditional compilation in the md file) */ +#define TARGET_ELF 1 + +/* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just + the same as -mminimal-toc. */ +#undef SUBTARGET_SWITCHES +#define SUBTARGET_SWITCHES \ + { "bit-align", -MASK_NO_BITFIELD_TYPE }, \ + { "no-bit-align", MASK_NO_BITFIELD_TYPE }, \ + { "strict-align", MASK_STRICT_ALIGN }, \ + { "no-strict-align", -MASK_STRICT_ALIGN }, \ + { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC }, \ + { "no-relocatable", -MASK_RELOCATABLE }, \ + { "traceback", -MASK_NO_TRACEBACK }, \ + { "no-traceback", MASK_NO_TRACEBACK }, \ + { "little-endian", MASK_LITTLE_ENDIAN }, \ + { "little", MASK_LITTLE_ENDIAN }, \ + { "big-endian", -MASK_LITTLE_ENDIAN }, \ + { "big", -MASK_LITTLE_ENDIAN }, \ + { "no-toc", 0 }, \ + { "toc", MASK_MINIMAL_TOC }, \ + { "full-toc", MASK_MINIMAL_TOC }, \ + { "call-aix", MASK_AIX_CALLS }, \ + { "call-sysv", -MASK_AIX_CALLS }, \ + { "prototype", MASK_PROTOTYPE }, \ + { "no-prototype", -MASK_PROTOTYPE }, + +/* Sometimes certain combinations of command options do not make sense + on a particular target machine. You can define a macro + `OVERRIDE_OPTIONS' to take account of this. This macro, if + defined, is executed once just after all the command options have + been parsed. + + The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to + get control. */ + +#define SUBTARGET_OVERRIDE_OPTIONS \ +do { \ + if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \ + { \ + target_flags |= MASK_MINIMAL_TOC; \ + error ("-mrelocatable and -mno-minimal-toc are incompatible."); \ + } \ +} while (0) + +#include "rs6000/powerpc.h" + +/* System V.4 uses register 13 as a pointer to the small data area, + so it is not available to the normal user. */ + +#undef FIXED_R13 +#define FIXED_R13 1 + +/* System V.4 passes the first 8 floating arguments in registers, + instead of the first 13 like AIX does. */ +#undef FP_ARG_MAX_REG +#define FP_ARG_AIX_MAX_REG 45 +#define FP_ARG_V4_MAX_REG 40 +#define FP_ARG_MAX_REG ((TARGET_AIX_CALLS) ? FP_ARG_AIX_MAX_REG : FP_ARG_V4_MAX_REG) + +/* Size of the V.4 varargs area if needed */ +#undef RS6000_VARARGS_AREA +#define RS6000_VARARGS_AREA ((rs6000_sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0) + +/* Override default big endianism */ +#undef BYTES_BIG_ENDIAN +#undef WORDS_BIG_ENDIAN +#define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN) +#define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN) + +/* Define this to set the endianness to use in libgcc2.c, which can + not depend on target_flags. */ +#ifndef _LITTLE_ENDIAN +#define LIBGCC2_WORDS_BIG_ENDIAN 1 +#else +#define LIBGCC2_WORDS_BIG_ENDIAN 0 +#endif + +/* Size of the outgoing register save area */ +#undef RS6000_REG_SAVE +#define RS6000_REG_SAVE (TARGET_AIX_CALLS ? (TARGET_64BIT ? 64 : 32) : 0) + +/* Size of the fixed area on the stack. For AIX, use the standard 6 word + area, otherwise use 2 words to store back chain & LR. */ +#undef RS6000_SAVE_AREA +#define RS6000_SAVE_AREA \ + ((TARGET_AIX_CALLS ? 24 : 8) << (TARGET_64BIT ? 1 : 0)) + +/* Define cutoff for using external functions to save floating point. + Currently on V.4, always use inline stores */ +#undef FP_SAVE_INLINE +#define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64) + +/* Don't generate XCOFF debugging information. */ + +#undef XCOFF_DEBUGGING_INFO + +/* Don't use the COFF object file format. */ + +#undef OBJECT_FORMAT_COFF + +/* The XCOFF support uses weird symbol suffixes, which we don't want + for ELF. */ + +#undef RS6000_OUTPUT_BASENAME +#define RS6000_OUTPUT_BASENAME(FILE, NAME) assemble_name (FILE, NAME) + +/* Don't bother to output .extern pseudo-ops. They are not needed by + ELF assemblers. */ + +#undef ASM_OUTPUT_EXTERNAL + +/* Undefine some things which are defined by the generic svr4.h. */ + +#undef ASM_FILE_END +#undef ASM_OUTPUT_EXTERNAL_LIBCALL +#undef READONLY_DATA_SECTION +#undef SELECT_SECTION +#undef ASM_DECLARE_FUNCTION_NAME +#undef ASM_OUTPUT_CONSTRUCTOR +#undef ASM_OUTPUT_DESTRUCTOR + +/* Use the regular svr4 definitions. */ + +#include +/* +*/ + +/* A C statement (sans semicolon) to output an element in the table of + global constructors. */ +#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ + do { \ + ctors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + +/* A C statement (sans semicolon) to output an element in the table of + global destructors. */ +#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ + do { \ + dtors_section (); \ + fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ + assemble_name (FILE, NAME); \ + fprintf (FILE, "\n"); \ + } while (0) + + +/* Prefix and suffix to use to saving floating point */ +#undef SAVE_FP_PREFIX +#undef SAVE_FP_SUFFIX +#define SAVE_FP_PREFIX "_savefpr_" +#define SAVE_FP_SUFFIX "_l" + +/* Prefix and suffix to use to restoring floating point */ +#undef RESTORE_FP_PREFIX +#undef RESTORE_FP_SUFFIX +#define RESTORE_FP_PREFIX "_restfpr_" +#define RESTORE_FP_SUFFIX "_l" + +/* Type used for ptrdiff_t, as a string used in a declaration. */ +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +/* Type used for wchar_t, as a string used in a declaration. */ +#undef WCHAR_TYPE +#define WCHAR_TYPE "short unsigned int" + +/* Width of wchar_t in bits. */ +#undef WCHAR_TYPE_SIZE +#define WCHAR_TYPE_SIZE 16 + +/* Align stack to 16 byte boundaries */ +#undef STACK_BOUNDARY +#define STACK_BOUNDARY 128 + +/* No data type wants to be aligned rounder than this. */ +#undef BIGGEST_ALIGNMENT +#define BIGGEST_ALIGNMENT 128 + +/* Use ELF style section commands. */ + +#undef TEXT_SECTION_ASM_OP +#define TEXT_SECTION_ASM_OP "\t.section\t\".text\"" + +#undef DATA_SECTION_ASM_OP +#define DATA_SECTION_ASM_OP "\t.section\t\".data\"" + +/* Besides the usual ELF sections, we need a toc section. */ +#undef EXTRA_SECTIONS +#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_toc + +#define TOC_SECTION_FUNCTION \ +void \ +toc_section () \ +{ \ + static int toc_initialized = 0; \ + \ + if (in_section != in_toc) \ + { \ + in_section = in_toc; \ + fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \ + if (! toc_initialized) \ + { \ + ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \ + fprintf (asm_out_file, " = .+32768\n"); \ + toc_initialized = 1; \ + } \ + } \ +} + +#define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\"" +#define MINIMAL_TOC_SECTION_ASM_OP "\t.section\t\".got1\",\"aw\"" + +/* Use the TOC section for TOC entries. */ + +#undef SELECT_RTX_SECTION +#define SELECT_RTX_SECTION(MODE, X) \ +{ if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (X)) \ + toc_section (); \ + else \ + const_section (); \ +} + +/* These macros generate the special .type and .size directives which + are used to set the corresponding fields of the linker symbol table + entries in an ELF object file under SVR4. These macros also output + the starting labels for the relevant functions/objects. */ + +/* Write the extra assembler code needed to declare a function properly. + Some svr4 assemblers need to also have something extra said about the + function's return value. We allow for that here. */ + +extern void svr4_traceback (); +extern int rs6000_pic_labelno; + +#undef ASM_DECLARE_FUNCTION_NAME +#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ + do { \ + if (TARGET_RELOCATABLE && get_pool_size () != 0) \ + { \ + char buf[256]; \ + \ + ASM_OUTPUT_INTERNAL_LABEL (FILE, "LCL", rs6000_pic_labelno); \ + \ + ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); \ + fprintf (FILE, (TARGET_POWERPC64) ? "\t.quad " : "\t.long "); \ + assemble_name (FILE, buf); \ + putc ('-', FILE); \ + \ + ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); \ + assemble_name (FILE, buf); \ + putc ('\n', FILE); \ + } \ + \ + fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ + assemble_name (FILE, NAME); \ + putc (',', FILE); \ + fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ + putc ('\n', FILE); \ + if (TARGET_TRACEBACK) \ + svr4_traceback (FILE, NAME, DECL); \ + ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ + ASM_OUTPUT_LABEL(FILE, NAME); \ + } while (0) + +/* How to renumber registers for dbx and gdb. */ + +#define DBX_REGISTER_NUMBER(REGNO) (REGNO) + +/* svr4.h overrides ASM_OUTPUT_INTERNAL_LABEL. */ + +#undef ASM_OUTPUT_INTERNAL_LABEL_PREFIX +#define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ + fprintf (FILE, ".%s", PREFIX) + +/* Pass -mppc to the assembler, since that is what powerpc.h currently + implies. */ +#undef ASM_SPEC +#define ASM_SPEC \ + "-u \ +%{mcpu=601: -m601} %{!mcpu=601: -mppc} \ +%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \ +%{mrelocatable} \ +%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}" + +/* Output .file and comments listing what options there are */ +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) \ +do { \ + ASM_OUTPUT_OPTIONS (FILE); \ + output_file_directive ((FILE), main_input_filename); \ +} while (0) + +/* This is the end of what might become sysv4.h. */ + +/* Allow stabs and dwarf, prefer dwarf. */ +#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG +#define DBX_DEBUGGING_INFO +#define DWARF_DEBUGGING_INFO + +/* This macro gets just the user-specified name + out of the string in a SYMBOL_REF. Discard + a leading * */ +#undef STRIP_NAME_ENCODING +#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \ + (VAR) = ((SYMBOL_NAME) + ((SYMBOL_NAME)[0] == '*')) + +/* Like block addresses, stabs line numbers are relative to the + current function. */ + +#undef ASM_OUTPUT_SOURCE_LINE +#define ASM_OUTPUT_SOURCE_LINE(file, line) \ +do \ + { \ + static int sym_lineno = 1; \ + char *_p; \ + fprintf (file, "\t.stabn 68,0,%d,.LM%d-", \ + line, sym_lineno); \ + STRIP_NAME_ENCODING (_p, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ + assemble_name (file, _p); \ + fprintf (file, "\n.LM%d:\n", sym_lineno); \ + sym_lineno += 1; \ + } \ +while (0) + +/* But, to make this work, we have to output the stabs for the function + name *first*... */ + +#define DBX_FUNCTION_FIRST + +/* This is the end of what might become sysv4dbx.h. */ + +#undef TARGET_VERSION +#define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)"); + + +/* Output assembler code for a block containing the constant parts + of a trampoline, leaving space for the variable parts. + + The trampoline should set the static chain pointer to value placed + into the trampoline and should branch to the specified routine. + + Unlike AIX, this needs real code. */ + +#undef TRAMPOLINE_TEMPLATE +#define TRAMPOLINE_TEMPLATE(FILE) \ +do { \ + char *sc = reg_names[STATIC_CHAIN_REGNUM]; \ + char *r0 = reg_names[0]; \ + \ + if (STATIC_CHAIN_REGNUM == 0 || !TARGET_NEW_MNEMONICS) \ + abort (); \ + \ + if (TARGET_64BIT) \ + { \ + fprintf (FILE, "\tmflr %s\n", r0); /* offset 0 */ \ + fprintf (FILE, "\tbl .LTRAMP1\n"); /* offset 4 */ \ + fprintf (FILE, "\t.long 0,0,0,0\n"); /* offset 8 */ \ + fprintf (FILE, ".LTRAMP1:\n"); \ + fprintf (FILE, "\tmflr %s\n", sc); /* offset 28 */ \ + fprintf (FILE, "\tmtlr %s\n", r0); /* offset 32 */ \ + fprintf (FILE, "\tld %s,0(%s)\n", r0, sc); /* offset 36 */ \ + fprintf (FILE, "\tld %s,8(%s)\n", sc, sc); /* offset 40 */ \ + fprintf (FILE, "\tmtctr %s\n", r0); /* offset 44 */ \ + fprintf (FILE, "\tbctr\n"); /* offset 48 */ \ + } \ + else \ + { \ + fprintf (FILE, "\tmflr %s\n", r0); /* offset 0 */ \ + fprintf (FILE, "\tbl .LTRAMP1\n"); /* offset 4 */ \ + fprintf (FILE, "\t.long 0,0\n"); /* offset 8 */ \ + fprintf (FILE, ".LTRAMP1:\n"); \ + fprintf (FILE, "\tmflr %s\n", sc); /* offset 20 */ \ + fprintf (FILE, "\tmtlr %s\n", r0); /* offset 24 */ \ + fprintf (FILE, "\tlwz %s,0(%s)\n", r0, sc); /* offset 28 */ \ + fprintf (FILE, "\tlwz %s,4(%s)\n", sc, sc); /* offset 32 */ \ + fprintf (FILE, "\tmtctr %s\n", r0); /* offset 36 */ \ + fprintf (FILE, "\tbctr\n"); /* offset 40 */ \ + } \ +} while (0) + +/* Length in units of the trampoline for entering a nested function. */ + +#undef TRAMPOLINE_SIZE +#define TRAMPOLINE_SIZE (TARGET_64BIT ? 48 : 40) + +/* Emit RTL insns to initialize the variable parts of a trampoline. + FNADDR is an RTX for the address of the function's pure code. + CXT is an RTX for the static chain value for the function. */ + +#undef INITIALIZE_TRAMPOLINE +#define INITIALIZE_TRAMPOLINE(ADDR, FNADDR, CXT) \ +{ \ + rtx reg = gen_reg_rtx (Pmode); \ + \ + emit_move_insn (reg, FNADDR); \ + emit_move_insn (gen_rtx (MEM, Pmode, \ + plus_constant (ADDR, 8)), \ + reg); \ + emit_move_insn (gen_rtx (MEM, Pmode, \ + plus_constant (ADDR, (TARGET_64BIT ? 16 : 12))), \ + CXT); \ + emit_insn (gen_sync_isync (gen_rtx (MEM, BLKmode, ADDR))); \ +} + + +#undef CPP_PREDEFINES +#define CPP_PREDEFINES "-Dunix -Dppc -D__ppc__ -Dpowerpc -D__powerpc__ \ + -D__OpenBSD__ -D__NetBSD__ -Asystem(unix) -Asystem(OpenBSD) \ + -Acpu(powerpc) -Amachine(powerpc)" + +#undef CPP_SPEC +#define CPP_SPEC "\ +%{posix: -D_POSIX_SOURCE} \ +%{mrelocatable: -D_RELOCATABLE} \ +%{mcall-sysv: -D_CALL_SYSV} %{mcall-aix: -D_CALL_AIX} %{!mcall-sysv: %{!mcall-aix: -D_CALL_SYSV}} \ +%{msoft-float: -D_SOFT_FLOAT} %{mcpu=403: -D_SOFT_FLOAT} \ +%{mlittle: -D_LITTLE_ENDIAN -Amachine(littleendian)} \ +%{mlittle-endian: -D_LITTLE_ENDIAN -Amachine(littleendian)} \ +%{!mlittle: %{!mlittle-endian: -D_BIG_ENDIAN -Amachine(bigendian)}} \ +%{!mcpu*: \ + %{mpower: %{!mpower2: -D_ARCH_PWR}} \ + %{mpower2: -D_ARCH_PWR2} \ + %{mpowerpc*: -D_ARCH_PPC} \ + %{mno-powerpc: %{!mpower: %{!mpower2: -D_ARCH_COM}}} \ + %{!mno-powerpc: -D_ARCH_PPC}} \ +%{mcpu=common: -D_ARCH_COM} \ +%{mcpu=power: -D_ARCH_PWR} \ +%{mcpu=powerpc: -D_ARCH_PPC} \ +%{mcpu=rios: -D_ARCH_PWR} \ +%{mcpu=rios1: -D_ARCH_PWR} \ +%{mcpu=rios2: -D_ARCH_PWR2} \ +%{mcpu=rsc: -D_ARCH_PWR} \ +%{mcpu=rsc1: -D_ARCH_PWR} \ +%{mcpu=403: -D_ARCH_PPC} \ +%{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \ +%{mcpu=603: -D_ARCH_PPC} \ +%{mcpu=604: -D_ARCH_PPC}" + +/* HACK!!!, the ifdefs are screwed up should be ELF, not SVR4 */ +#define USING_SVR4_H + +#define COMMON_ASM_OP ".comm" + +#undef ASM_OUTPUT_ALIGNED_COMMON +#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ +do { \ + fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ +} while (0) + +/* This says how to output assembler code to declare an + uninitialized internal linkage data object. Under SVR4, + the linker seems to want the alignment of data objects + to depend on their types. We do exactly that here. */ + +#define LOCAL_ASM_OP ".local" + +#undef ASM_OUTPUT_ALIGNED_LOCAL +#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ +do { \ + fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), "\n"); \ + ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ +} while (0) + +#undef EXTRA_SECTION_FUNCTIONS +#define EXTRA_SECTION_FUNCTIONS \ + CONST_SECTION_FUNCTION \ + CTORS_SECTION_FUNCTION \ + DTORS_SECTION_FUNCTION \ + TOC_SECTION_FUNCTION + +#define READONLY_DATA_SECTION() const_section () + + +/* A table of bytes codes used by the ASM_OUTPUT_ASCII and + ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table + corresponds to a particular byte value [0..255]. For any + given byte value, if the value in the corresponding table + position is zero, the given character can be output directly. + If the table value is 1, the byte must be output as a \ooo + octal escape. If the tables value is anything else, then the + byte value should be output as a \ followed by the value + in the table. Note that we can use standard UN*X escape + sequences for many control characters, but we don't use + \a to represent BEL because some svr4 assemblers (e.g. on + the i386) don't know about that. Also, we don't use \v + since some versions of gas, such as 2.2 did not accept it. */ + +#define ESCAPES \ +"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ +\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ +\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\ +\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\ +\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ +\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ +\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ +\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1" + +/* Some svr4 assemblers have a limit on the number of characters which + can appear in the operand of a .string directive. If your assembler + has such a limitation, you should define STRING_LIMIT to reflect that + limit. Note that at least some svr4 assemblers have a limit on the + actual number of bytes in the double-quoted string, and that they + count each character in an escape sequence as one byte. Thus, an + escape sequence like \377 would count as four bytes. + + If your target assembler doesn't support the .string directive, you + should define this to zero. +*/ + +#define STRING_LIMIT ((unsigned) 256) + +#define STRING_ASM_OP ".string" + +/* The routine used to output NUL terminated strings. 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, especially for targets like the i386 + (where the only alternative is to output character sequences as + comma separated lists of numbers). */ + +#define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \ + do \ + { \ + register unsigned char *_limited_str = (unsigned char *) (STR); \ + register unsigned ch; \ + fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \ + for (; ch = *_limited_str; _limited_str++) \ + { \ + register int escape; \ + switch (escape = ESCAPES[ch]) \ + { \ + case 0: \ + putc (ch, (FILE)); \ + break; \ + case 1: \ + fprintf ((FILE), "\\%03o", ch); \ + break; \ + default: \ + putc ('\\', (FILE)); \ + putc (escape, (FILE)); \ + break; \ + } \ + } \ + fprintf ((FILE), "\"\n"); \ + } \ + while (0) + +/* This is the pseudo-op used to generate a 32-bit word of data with a + specific value in some section. This is the same for all known svr4 + assemblers. */ + +#define INT_ASM_OP ".long" + +/* This is the pseudo-op used to generate a contiguous sequence of byte + values from a double-quoted string WITHOUT HAVING A TERMINATING NUL + AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */ + +#undef ASCII_DATA_ASM_OP +#define ASCII_DATA_ASM_OP ".ascii" + +/* 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 unsigned char *_ascii_bytes = (unsigned char *) (STR); \ + register unsigned char *limit = _ascii_bytes + (LENGTH); \ + register unsigned bytes_in_chunk = 0; \ + for (; _ascii_bytes < limit; _ascii_bytes++) \ + { \ + register unsigned char *p; \ + if (bytes_in_chunk >= 60) \ + { \ + fprintf ((FILE), "\"\n"); \ + 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) \ + { \ + fprintf ((FILE), "\"\n"); \ + bytes_in_chunk = 0; \ + } \ + ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \ + _ascii_bytes = p; \ + } \ + else \ + { \ + register int escape; \ + register unsigned ch; \ + if (bytes_in_chunk == 0) \ + fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \ + switch (escape = ESCAPES[ch = *_ascii_bytes]) \ + { \ + case 0: \ + putc (ch, (FILE)); \ + bytes_in_chunk++; \ + break; \ + case 1: \ + fprintf ((FILE), "\\%03o", ch); \ + bytes_in_chunk += 4; \ + break; \ + default: \ + putc ('\\', (FILE)); \ + putc (escape, (FILE)); \ + bytes_in_chunk += 2; \ + break; \ + } \ + } \ + } \ + if (bytes_in_chunk > 0) \ + fprintf ((FILE), "\"\n"); \ + } \ + while (0) + +#if 0 + +/* This is the pseudo-op used to generate a contiguous sequence of byte + values from a double-quoted string WITHOUT HAVING A TERMINATING NUL + AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */ + +#undef ASCII_DATA_ASM_OP +#define ASCII_DATA_ASM_OP ".ascii" +#endif + +/* Support const sections and the ctors and dtors sections for g++. + Note that there appears to be two different ways to support const + sections at the moment. You can either #define the symbol + READONLY_DATA_SECTION (giving it some code which switches to the + readonly data section) or else you can #define the symbols + EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and + SELECT_RTX_SECTION. We do both here just to be on the safe side. */ + +#define USE_CONST_SECTION 1 + +#define CONST_SECTION_ASM_OP ".section\t.rodata" + +/* Define the pseudo-ops used to switch to the .ctors and .dtors sections. + + Note that we want to give these sections the SHF_WRITE attribute + because these sections will actually contain data (i.e. tables of + addresses of functions in the current root executable or shared library + file) and, in the case of a shared library, the relocatable addresses + will have to be properly resolved/relocated (and then written into) by + the dynamic linker when it actually attaches the given shared library + to the executing process. (Note that on SVR4, you may wish to use the + `-z text' option to the ELF linker, when building a shared library, as + an additional check that you are doing everything right. But if you do + use the `-z text' option when building a shared library, you will get + errors unless the .ctors and .dtors sections are marked as writable + via the SHF_WRITE attribute.) */ + +#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\"" +#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\"" + +/* On svr4, we *do* have support for the .init and .fini sections, and we + can put stuff in there to be executed before and after `main'. We let + crtstuff.c and other files know this by defining the following symbols. + The definitions say how to change sections to the .init and .fini + sections. This is the same for all known svr4 assemblers. */ + +#define INIT_SECTION_ASM_OP ".section\t.init" +#define FINI_SECTION_ASM_OP ".section\t.fini" + +/* A default list of other sections which we might be "in" at any given + time. For targets that use additional sections (e.g. .tdesc) you + should override this definition in the target-specific file which + includes this file. */ + + +extern void text_section (); + +#define CONST_SECTION_FUNCTION \ +void \ +const_section () \ +{ \ + if (!USE_CONST_SECTION) \ + text_section(); \ + else if (in_section != in_const) \ + { \ + fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \ + in_section = in_const; \ + } \ +} + +#define CTORS_SECTION_FUNCTION \ +void \ +ctors_section () \ +{ \ + if (in_section != in_ctors) \ + { \ + fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \ + in_section = in_ctors; \ + } \ +} + +#define DTORS_SECTION_FUNCTION \ +void \ +dtors_section () \ +{ \ + if (in_section != in_dtors) \ + { \ + fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ + in_section = in_dtors; \ + } \ +} + +/* OK THIS IS A HACK, might go away on a fully built system */ +/* Provide a LIB_SPEC appropriate for OpenBSD. Just select the appropriate + libc, depending on whether we're doing profiling. */ + +#undef LIB_SPEC +#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" + +/* This is how to output an internal numbered label where + PREFIX is the class of label and NUM is the number within the class. + + For most svr4 systems, the convention is that any symbol which begins + with a period is not put into the linker symbol table by the assembler. */ + +#undef ASM_OUTPUT_INTERNAL_LABEL +#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \ +do { \ + fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \ +} while (0) + +/* 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'. + + For most svr4 systems, the convention is that any symbol which begins + with a period is not put into the linker symbol table by the assembler. */ + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \ +do { \ + sprintf (LABEL, "*.%s%d", PREFIX, NUM); \ +} while (0) + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "%{!shared: \ + %{!symbolic: \ + %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\ + /usr/lib/crtbegin.o%s" + +/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own + magical crtend.o file (see crtstuff.c) which provides part of the + support for getting C++ file-scope static object constructed before + entering `main', followed by the normal svr3/svr4 "finalizer" file, + which is either `gcrtn.o' or `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "/usr/lib/crtend.o%s" diff --git a/gnu/usr.bin/gcc/config/rs6000/t-openbsd b/gnu/usr.bin/gcc/config/rs6000/t-openbsd new file mode 100644 index 00000000000..5eca09aca3b --- /dev/null +++ b/gnu/usr.bin/gcc/config/rs6000/t-openbsd @@ -0,0 +1,28 @@ +# Do not build libgcc1. +LIBGCC1 = +CROSS_LIBGCC1 = + +# These are really part of libgcc1, but this will cause them to be +# built correctly, so... [taken from t-sparclite] +LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c + +dp-bit.c: $(srcdir)/config/fp-bit.c + cat $(srcdir)/config/fp-bit.c > dp-bit.c + +fp-bit.c: $(srcdir)/config/fp-bit.c + echo '#define FLOAT' > fp-bit.c + cat $(srcdir)/config/fp-bit.c >> fp-bit.c + +# Build libgcc.a with different options. + +MULTILIB_OPTIONS = msoft-float + +MULTILIB_DIRNAMES = soft-float + + +MULTILIB_MATCHES = msoft-float=mcpu?403 \ + msoft-float=mcpu?mpc403 \ + msoft-float=mcpu?ppc403 + +LIBGCC = stmp-multilib +INSTALL_LIBGCC = install-multilib diff --git a/gnu/usr.bin/gcc/config/rs6000/xm-openbsd.h b/gnu/usr.bin/gcc/config/rs6000/xm-openbsd.h new file mode 100644 index 00000000000..6898b15b12f --- /dev/null +++ b/gnu/usr.bin/gcc/config/rs6000/xm-openbsd.h @@ -0,0 +1,4 @@ +/* Configuration for GCC for powerpc running OpenBSD as host. */ + +#include +#include diff --git a/gnu/usr.bin/gcc/config/rs6000/xm-powerpc.h b/gnu/usr.bin/gcc/config/rs6000/xm-powerpc.h new file mode 100644 index 00000000000..7fc43d2137f --- /dev/null +++ b/gnu/usr.bin/gcc/config/rs6000/xm-powerpc.h @@ -0,0 +1,41 @@ +/* Configuration for GNU C-compiler for PowerPC + Copyright (C) 1987, 1993 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. */ + + +/* #defines that need visibility everywhere. */ +#define FALSE 0 +#define TRUE 1 + +/* This describes the machine the compiler is hosted on. */ +#define HOST_BITS_PER_CHAR 8 +#define HOST_BITS_PER_SHORT 16 +#define HOST_BITS_PER_INT 32 +#define HOST_BITS_PER_LONG 32 +#define HOST_BITS_PER_LONGLONG 64 + +#define HOST_WORDS_BIG_ENDIAN + +/* target machine dependencies. + tm.h is a symbolic link to the actual target specific file. */ +#include "tm.h" + +/* Arguments to use with `exit'. */ +#define SUCCESS_EXIT_CODE 0 +#define FATAL_EXIT_CODE 33 -- 2.20.1