cb6a8938ed
progress, largely based on the gcc port in ports/lang/gcc/4.2. Requested by jsg@. It's somewhat usable on i386 (shared lib versions not yet properly under control). Build on amd64 currently fails with -fPIC problems. -- -- lvm-gcc is the LLVM C front end. It is a modified version of gcc that compiles C/C++/ObjC programs into native objects, LLVM bitcode or LLVM assembly language, depending upon the options. By default, llvm-gcc compiles to native objects just like GCC does. If the -emit-llvm option is given then it will generate LLVM bitcode files instead. If -S (assembly) is also given, then it will generate LLVM assembly. Being derived from the GNU Compiler Collection, llvm-gcc has many of gcc's features and accepts most of gcc's options. It handles a number of gcc's extensions to the C programming language. <sthen@zephyr:/usr/ports/mystuff/lang/llvm-gcc4:9>$CVS: ----------------------------------------------------------------------
126 lines
3.8 KiB
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126 lines
3.8 KiB
Plaintext
$OpenBSD: patch-gcc_config_i386_openbsd64_h,v 1.1.1.1 2009/06/22 22:37:32 sthen Exp $
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--- gcc/config/i386/openbsd64.h.orig Wed Oct 18 13:48:08 2006
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+++ gcc/config/i386/openbsd64.h Wed Oct 18 13:48:02 2006
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@@ -0,0 +1,121 @@
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+/* Configuration for an OpenBSD x86-64 target.
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+
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+ Copyright (C) 2003 Free Software Foundation, Inc.
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+
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+This file is part of GNU CC.
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+
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+GNU CC is free software; you can redistribute it and/or modify
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+it under the terms of the GNU General Public License as published by
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+the Free Software Foundation; either version 2, or (at your option)
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+any later version.
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+
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+GNU CC is distributed in the hope that it will be useful,
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+but WITHOUT ANY WARRANTY; without even the implied warranty of
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+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+GNU General Public License for more details.
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+
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+You should have received a copy of the GNU General Public License
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+along with GNU CC; see the file COPYING. If not, write to
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+the Free Software Foundation, 59 Temple Place - Suite 330,
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+Boston, MA 02111-1307, USA. */
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+
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+#undef TARGET_VERSION
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+#define TARGET_VERSION fprintf (stderr, " (OpenBSD/x86-64 ELF)")
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+
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+/* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using
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+ libraries compiled with the native cc, so undef it. */
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+#undef NO_DOLLAR_IN_LABEL
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+
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+/* Override the default comment-starter of "/". */
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+#undef ASM_COMMENT_START
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+#define ASM_COMMENT_START "#"
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+
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+/* Run-time target specifications */
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+
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+#define TARGET_OS_CPP_BUILTINS() \
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+ do \
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+ { \
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+ OPENBSD_OS_CPP_BUILTINS_ELF(); \
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+ if (TARGET_64BIT) \
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+ OPENBSD_OS_CPP_BUILTINS_LP64(); \
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+ } \
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+ while (0)
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+
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+/* As an elf system, we need crtbegin/crtend stuff. */
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+#undef STARTFILE_SPEC
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+#define STARTFILE_SPEC "\
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+ %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
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+ crtbegin%O%s} %{shared:crtbeginS%O%s}"
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+#undef ENDFILE_SPEC
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+#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
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+
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+/* Layout of source language data types. */
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+
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+/* This must agree with <machine/_types.h> */
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+#undef SIZE_TYPE
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+#define SIZE_TYPE "long unsigned int"
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+
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+#undef PTRDIFF_TYPE
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+#define PTRDIFF_TYPE "long int"
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+
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+#undef WCHAR_TYPE
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+#define WCHAR_TYPE "int"
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+
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+#undef WCHAR_TYPE_SIZE
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+#define WCHAR_TYPE_SIZE 32
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+
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+/* Assembler format: overall framework. */
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+
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+#undef ASM_APP_ON
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+#define ASM_APP_ON "#APP\n"
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+
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+#undef ASM_APP_OFF
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+#define ASM_APP_OFF "#NO_APP\n"
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+
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+#undef SET_ASM_OP
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+#define SET_ASM_OP "\t.set\t"
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+
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+/* The following macros were originally stolen from i386v4.h.
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+ These have to be defined to get PIC code correct. */
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+
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+/* Assembler format: dispatch tables. */
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+
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+/* Assembler format: sections. */
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+
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+/* Stack & calling: aggregate returns. */
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+
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+/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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+ we want to retain compatibility with older gcc versions. */
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+#define DEFAULT_PCC_STRUCT_RETURN 0
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+
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+/* Assembler format: alignment output. */
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+
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+/* Stack & calling: profiling. */
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+
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+/* OpenBSD's profiler recovers all information from the stack pointer.
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+ The icky part is not here, but in machine/profile.h. */
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+#undef FUNCTION_PROFILER
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+#define FUNCTION_PROFILER(FILE, LABELNO) \
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+ fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE);
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+
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+/* Assembler format: exception region output. */
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+
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+/* Assembler format: alignment output. */
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+
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+/* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */
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+
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+/* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */
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+
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+#undef LINK_SPEC
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+#define LINK_SPEC \
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+ "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e __start}}}} \
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+ %{shared:-shared} %{R*} \
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+ %{static:-Bstatic} \
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+ %{!static:-Bdynamic} \
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+ %{assert*} \
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+ %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}"
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+
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+#define OBSD_HAS_CORRECT_SPECS
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+
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+#undef JUMP_TABLES_IN_TEXT_SECTION
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+#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
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