diff options
| -rw-r--r-- | gnu/usr.bin/gcc/config/mips/openbsd-le.h | 250 |
1 files changed, 35 insertions, 215 deletions
diff --git a/gnu/usr.bin/gcc/config/mips/openbsd-le.h b/gnu/usr.bin/gcc/config/mips/openbsd-le.h index 25702c05905..23b00a5d363 100644 --- a/gnu/usr.bin/gcc/config/mips/openbsd-le.h +++ b/gnu/usr.bin/gcc/config/mips/openbsd-le.h @@ -1,42 +1,24 @@ -/* Definitions for MIPS systems running BSD as target machine for GNU compiler. - Copyright (C) 1993, 1995 Free Software Foundation, Inc. +/* GCC definition OpenBSD Mips ABI32 */ -This file is part of GNU CC. +#include <openbsd.h> -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. +/* Mips targets uses it's own for this */ +#undef ASM_SPEC +#undef ASM_DECLARE_OBJECT_NAME +#undef ASM_DECLARE_FUNCTION_NAME -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 SET_ASM_OP because it means something else in mips gas */ +#undef SET_ASM_OP /* We settle for little endian for now */ - #define TARGET_ENDIAN_DEFAULT 0 -#ifndef CROSS_COMPILE -/* Look for the G++ include files in the system-defined place. */ - -#undef GPLUSPLUS_INCLUDE_DIR -#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++" - -/* Under OpenBSD, the normal location of the various *crt*.o files is the - /usr/lib directory. */ - -#undef STANDARD_STARTFILE_PREFIX -#define STANDARD_STARTFILE_PREFIX "/usr/lib/" -#endif +/* Target uses ELF object format */ +#define OBJECT_FORMAT_ELF /* Provide a LINK_SPEC appropriate for OpenBSD. Here we provide support for the special GCC options -static, -assert, and -nostdlib. */ +/* We also need to control dynamic stuff like dynamic loader etc */ #undef LINK_SPEC #define LINK_SPEC \ @@ -48,66 +30,25 @@ Boston, MA 02111-1307, USA. */ %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \ %{static:-Bstatic} %{!static:-Bdynamic} %{assert*}" -/* We have atexit(3). */ - -#define HAVE_ATEXIT - -/* Implicit library calls should use memcpy, not bcopy, etc. */ - -#define TARGET_MEM_FUNCTIONS /* Define mips-specific OpenBSD predefines... */ #ifndef CPP_PREDEFINES -#define CPP_PREDEFINES "-D__ANSI_COMPAT \ --DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__OpenBSD__ -Dmips \ +#define CPP_PREDEFINES "-DMIPSEL -D_MIPSEL -DSYSTYPE_BSD \ -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \ --Dunix -D_R3000 \ +-Dunix -D__OpenBSD__ -Dmips \ -Asystem(unix) -Asystem(OpenBSD) -Amachine(mips)" #endif -#ifndef CC1_SPEC -#define CC1_SPEC "\ -%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \ -%{mips1:-mfp32 -mgp32}%{mips2:-mfp32 -mgp32}\ -%{mips3:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \ -%{mips4:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \ -%{mfp64:%{msingle-float:%emay not use both -mfp64 and -msingle-float}} \ -%{mfp64:%{m4650:%emay not use both -mfp64 and -m4650}} \ -%{m4650:-mcpu=r4650} \ -%{G*} %{EB:-meb} %{EL:-mel} %{EB:%{EL:%emay not use both -EB and -EL}} \ -%{pic-none: -mno-half-pic} \ -%{pic-lib: -mhalf-pic} \ -%{pic-extern: -mhalf-pic} \ -%{pic-calls: -mhalf-pic} \ -%{save-temps: } \ -%{!mno-abicalls: -mabicalls}" -#endif - +/* GAS needs to know this */ #define SUBTARGET_ASM_SPEC "%{fPIC:-KPIC}" -#ifndef CPP_SPEC -#define CPP_SPEC "\ -%{posix:-D_POSIX_SOURCE} \ -%{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \ -%{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \ -%{mips3:-U__mips -D__mips=3 -D__mips64} \ -%{mgp32:-U__mips64} %{mgp64:-D__mips64}" -#endif - -#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}" +/* ABI style and other controls. Our target uses GAS */ +#define TARGET_DEFAULT MASK_GAS|MASK_ABICALLS -#undef LIB_SPEC -#define LIB_SPEC "%{p:-lprof1} %{pg:-lprof1} -lc crtn.o%s" -#define STARTFILE_SPEC \ - "%{!shared:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}}" - -#ifndef MACHINE_TYPE -#define MACHINE_TYPE "OpenBSD/mips" -#endif - -#define TARGET_DEFAULT MASK_GAS +/* Some comment say that this is needed for ELF */ #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG +/* Some comment say that we need to redefine this for ELF */ #define LOCAL_LABEL_PREFIX "." /* -G is incompatible with -KPIC which is the default, so only allow objects @@ -117,145 +58,24 @@ Boston, MA 02111-1307, USA. */ #include "mips/mips.h" -/* - * Some imports from svr4.h in support of shared libraries. - * Currently, we need the DECLARE_OBJECT_SIZE stuff. - */ - -/* Define the strings used for the special svr4 .type and .size directives. - These strings generally do not vary from one system running svr4 to - another, but if a given system (e.g. m88k running svr) needs to use - different pseudo-op names for these, they may be overridden in the - file which includes this one. */ - -#undef TYPE_ASM_OP -#undef SIZE_ASM_OP -#undef WEAK_ASM_OP -#define TYPE_ASM_OP ".type" -#define SIZE_ASM_OP ".size" -#define WEAK_ASM_OP ".weak" - -/* The following macro defines the format used to output the second - operand of the .type assembler directive. Different svr4 assemblers - expect various different forms for this operand. The one given here - is just a default. You may need to override it in your machine- - specific tm.h file (depending upon the particulars of your assembler). */ - -#undef TYPE_OPERAND_FMT -#define TYPE_OPERAND_FMT "@%s" - -/* Write the extra assembler code needed to declare a function's result. - Most svr4 assemblers don't require any special declaration of the - result value, but there are exceptions. */ - -#ifndef ASM_DECLARE_RESULT -#define ASM_DECLARE_RESULT(FILE, RESULT) -#endif - -/* 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. */ - -#undef ASM_DECLARE_FUNCTION_NAME -#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \ - do { \ - extern FILE *asm_out_text_file; \ - \ - if (TARGET_GP_OPT) \ - { \ - int align; \ - STREAM = asm_out_text_file; \ - /* Output ALIGN again to the new stream. XXX */ \ - align = floor_log2 (FUNCTION_BOUNDARY / BITS_PER_UNIT); \ - if (align > 0) \ - { \ - if (output_bytecode) \ - BC_OUTPUT_ALIGN (STREAM, align); \ - else \ - ASM_OUTPUT_ALIGN (STREAM, align); \ - } \ - } \ - fprintf (STREAM, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (STREAM, NAME); \ - putc (',', STREAM); \ - fprintf (STREAM, TYPE_OPERAND_FMT, "function"); \ - putc ('\n', STREAM); \ - ASM_DECLARE_RESULT (STREAM, DECL_RESULT (DECL)); \ - HALF_PIC_DECLARE (NAME); \ - } while (0) - -/* Assemble generic sections. */ -/* Write the extra assembler code needed to declare an object properly. */ - -#undef ASM_DECLARE_OBJECT_NAME -#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ - do { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ - putc ('\n', FILE); \ - size_directive_output = 0; \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) - -/* Output the size directive for a decl in rest_of_decl_compilation - in the case where we did not do so before the initializer. - Once we find the error_mark_node, we know that the value of - size_directive_output was set - by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ - -#undef ASM_FINISH_DECLARE_OBJECT -#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ -do { \ - char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ - && ! AT_END && TOP_LEVEL \ - && DECL_INITIAL (DECL) == error_mark_node \ - && !size_directive_output) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, name); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - } while (0) - -/* This is how to declare the size of a function. */ - -#undef ASM_DECLARE_FUNCTION_SIZE -#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ - do { \ - if (!flag_inhibit_size_directive) \ - { \ - char label[256]; \ - static int labelno; \ - labelno++; \ - ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, (FNAME)); \ - fprintf (FILE, ","); \ - assemble_name (FILE, label); \ - fprintf (FILE, "-"); \ - assemble_name (FILE, (FNAME)); \ - putc ('\n', FILE); \ - } \ - } while (0) - /* Since gas and gld are standard on OpenBSD, we don't need these */ + #undef ASM_FINAL_SPEC #undef STARTFILE_SPEC +/* + 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. mips.h doesn't define this, do it here. +*/ +#define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC) \ +do { \ + extern FILE *asm_out_text_file; \ + if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \ + fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \ + else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \ + fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \ + else \ + fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \ +} while (0) |