diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/openbsd.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/openbsd.h | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/openbsd.h b/gcc-4.2.1-5666.3/gcc/config/openbsd.h deleted file mode 100644 index 68eb94877..000000000 --- a/gcc-4.2.1-5666.3/gcc/config/openbsd.h +++ /dev/null @@ -1,311 +0,0 @@ -/* Base configuration file for all OpenBSD targets. - Copyright (C) 1999, 2000, 2004, 2005 Free Software Foundation, Inc. - -This file is part of GCC. - -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) -any later version. - -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 GCC; see the file COPYING. If not, write to -the Free Software Foundation, 51 Franklin Street, Fifth Floor, -Boston, MA 02110-1301, USA. */ - -/* Common OpenBSD configuration. - All OpenBSD architectures include this file, which is intended as - a repository for common defines. - - Some defines are common to all architectures, a few of them are - triggered by OBSD_* guards, so that we won't override architecture - defaults by mistakes. - - OBSD_HAS_CORRECT_SPECS: - another mechanism provides correct specs already. - OBSD_NO_DYNAMIC_LIBRARIES: - no implementation of dynamic libraries. - OBSD_OLD_GAS: - older flavor of gas which needs help for PIC. - OBSD_HAS_DECLARE_FUNCTION_NAME, OBSD_HAS_DECLARE_FUNCTION_SIZE, - OBSD_HAS_DECLARE_OBJECT: - PIC support, FUNCTION_NAME/FUNCTION_SIZE are independent, whereas - the corresponding logic for OBJECTS is necessarily coupled. - - There are also a few `default' defines such as ASM_WEAKEN_LABEL, - intended as common ground for arch that don't provide - anything suitable. */ - -/* OPENBSD_NATIVE is defined only when gcc is configured as part of - the OpenBSD source tree, specifically through Makefile.bsd-wrapper. - - In such a case the include path can be trimmed as there is no - distinction between system includes and gcc includes. */ - -/* This configuration method, namely Makefile.bsd-wrapper and - OPENBSD_NATIVE is NOT recommended for building cross-compilers. */ - -#ifdef OPENBSD_NATIVE - -/* The compiler is configured with ONLY the gcc/g++ standard headers. */ -#undef INCLUDE_DEFAULTS -#define INCLUDE_DEFAULTS \ - { \ - { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \ - { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1 }, \ - { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1 }, \ - { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0 }, \ - { 0, 0, 0, 0 } \ - } - -/* 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/local/lib/" - -#endif - - -/* Controlling the compilation driver. */ -/* TARGET_OS_CPP_BUILTINS() common to all OpenBSD targets. */ -#define OPENBSD_OS_CPP_BUILTINS() \ - do \ - { \ - builtin_define ("__OpenBSD__"); \ - builtin_define ("__unix__"); \ - builtin_define ("__ANSI_COMPAT"); \ - builtin_assert ("system=unix"); \ - builtin_assert ("system=bsd"); \ - builtin_assert ("system=OpenBSD"); \ - } \ - while (0) - -/* CPP_SPEC appropriate for OpenBSD. We deal with -posix and -pthread. - XXX the way threads are handled currently is not very satisfying, - since all code must be compiled with -pthread to work. - This two-stage defines makes it easy to pick that for targets that - have subspecs. */ -#ifdef CPP_CPU_SPEC -#define OBSD_CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}" -#else -#define OBSD_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}" -#endif - -/* LIB_SPEC appropriate for OpenBSD. */ -#ifdef HAS_LIBC_R -/* -lc(_r)?(_p)?, select _r for threads, and _p for p or pg. */ -# define OBSD_LIB_SPEC "%{!shared:-lc%{pthread:_r}%{p:_p}%{!p:%{pg:_p}}}" -#else -/* Include -lpthread if -pthread is specified on the command line. */ -# define OBSD_LIB_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}" -#endif - - -#ifndef OBSD_HAS_CORRECT_SPECS - -#ifndef OBSD_NO_DYNAMIC_LIBRARIES -#undef SWITCH_TAKES_ARG -#define SWITCH_TAKES_ARG(CHAR) \ - (DEFAULT_SWITCH_TAKES_ARG (CHAR) \ - || (CHAR) == 'R') -#endif - -#undef CPP_SPEC -#define CPP_SPEC OBSD_CPP_SPEC - -#ifdef OBSD_OLD_GAS -/* ASM_SPEC appropriate for OpenBSD. For some architectures, OpenBSD - still uses a special flavor of gas that needs to be told when generating - pic code. */ -#undef ASM_SPEC -#define ASM_SPEC "%{fpic|fpie:-k} %{fPIC|fPIE:-k -K}" -#endif - -/* Since we use gas, stdin -> - is a good idea. */ -#define AS_NEEDS_DASH_FOR_PIPED_INPUT - -/* LINK_SPEC appropriate for OpenBSD. Support for GCC options - -static, -assert, and -nostdlib. */ -#undef LINK_SPEC -#ifdef OBSD_NO_DYNAMIC_LIBRARIES -#define LINK_SPEC \ - "%{g:%{!nostdlib:-L/usr/lib/debug}} %{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{assert*}" -#else -#define LINK_SPEC \ - "%{g:%{!nostdlib:-L/usr/lib/debug}} %{!shared:%{!nostdlib:%{!r*:%{!e*:-e start}}}} %{shared:-Bshareable -x} -dc -dp %{R*} %{static:-Bstatic} %{assert*}" -#endif - -#undef LIB_SPEC -#define LIB_SPEC OBSD_LIB_SPEC -#endif - - -/* Runtime target specification. */ - -/* Miscellaneous parameters. */ - -/* Controlling debugging info: dbx options. */ - -/* Don't use the `xsTAG;' construct in DBX output; OpenBSD systems that - use DBX don't support it. */ -#define DBX_NO_XREFS - - -/* Support of shared libraries, mostly imported from svr4.h through netbsd. */ -/* Two differences from svr4.h: - - we use . - _func instead of a local label, - - we put extra spaces in expressions such as - .type _func , @function - This is more readable for a human being and confuses c++filt less. */ - -/* Assembler format: output and generation of labels. */ - -/* Define the strings used for the .type and .size directives. - These strings generally do not vary from one system running OpenBSD - to another, but if a given system needs to use different pseudo-op - names for these, they may be overridden in the arch specific file. */ - -/* OpenBSD assembler is hacked to have .type & .size support even in a.out - format object files. Functions size are supported but not activated - yet (look for GRACE_PERIOD_EXPIRED in gas/config/obj-aout.c). - SET_ASM_OP is needed for attribute alias to work. */ - -#undef TYPE_ASM_OP -#undef SIZE_ASM_OP -#undef SET_ASM_OP -#undef GLOBAL_ASM_OP - -#define TYPE_ASM_OP "\t.type\t" -#define SIZE_ASM_OP "\t.size\t" -#define SET_ASM_OP "\t.set\t" -#define GLOBAL_ASM_OP "\t.globl\t" - -/* The following macro defines the format used to output the second - operand of the .type assembler directive. */ -#undef TYPE_OPERAND_FMT -#define TYPE_OPERAND_FMT "@%s" - -/* Provision if extra assembler code is needed to declare a function's result - (taken from svr4, not needed yet actually). */ -#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 under OpenBSD. These macros also have to output the starting - labels for the relevant functions/objects. */ - -#ifndef OBSD_HAS_DECLARE_FUNCTION_NAME -/* Extra assembler code needed to declare a function properly. - Some assemblers may also 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(FILE, NAME, DECL) \ - do { \ - ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ - ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) -#endif - -#ifndef OBSD_HAS_DECLARE_FUNCTION_SIZE -/* 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) \ - ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \ - } while (0) -#endif - -#ifndef OBSD_HAS_DECLARE_OBJECT -/* Extra assembler code needed to declare an object properly. */ -#undef ASM_DECLARE_OBJECT_NAME -#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ - do { \ - HOST_WIDE_INT size; \ - ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ - size_directive_output = 0; \ - if (!flag_inhibit_size_directive \ - && (DECL) && DECL_SIZE (DECL)) \ - { \ - size_directive_output = 1; \ - size = int_size_in_bytes (TREE_TYPE (DECL)); \ - ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ - } \ - 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 { \ - const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ - HOST_WIDE_INT size; \ - 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; \ - size = int_size_in_bytes (TREE_TYPE (DECL)); \ - ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \ - } \ - } while (0) -#endif - - -/* Those are `generic' ways to weaken/globalize a label. We shouldn't need - to override a processor specific definition. Hence, #ifndef ASM_* - In case overriding turns out to be needed, one can always #undef ASM_* - before including this file. */ - -/* Tell the assembler that a symbol is weak. */ -/* Note: netbsd arm32 assembler needs a .globl here. An override may - be needed when/if we go for arm32 support. */ -#ifndef ASM_WEAKEN_LABEL -#define ASM_WEAKEN_LABEL(FILE,NAME) \ - do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \ - fputc ('\n', FILE); } while (0) -#endif - -/* Storage layout. */ - - -/* Otherwise, since we support weak, gthr.h erroneously tries to use - #pragma weak. */ -#define GTHREAD_USE_WEAK 0 - -/* bug work around: we don't want to support #pragma weak, but the current - code layout needs HANDLE_PRAGMA_WEAK asserted for __attribute((weak)) to - work. On the other hand, we don't define HANDLE_PRAGMA_WEAK directly, - as this depends on a few other details as well... */ -#define HANDLE_SYSV_PRAGMA 1 - -/* Stack is explicitly denied execution rights on OpenBSD platforms. */ -#define ENABLE_EXECUTE_STACK \ -extern void __enable_execute_stack (void *); \ -void \ -__enable_execute_stack (void *addr) \ -{ \ - long size = getpagesize (); \ - long mask = ~(size-1); \ - char *page = (char *) (((long) addr) & mask); \ - char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ - \ - if (mprotect (page, end - page, PROT_READ | PROT_WRITE | PROT_EXEC) < 0) \ - perror ("mprotect of trampoline code"); \ -} - -#include <sys/types.h> -#include <sys/mman.h> |