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-rw-r--r--gcc-4.4.3/gcc/config/rs6000/lynx.h123
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diff --git a/gcc-4.4.3/gcc/config/rs6000/lynx.h b/gcc-4.4.3/gcc/config/rs6000/lynx.h
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+/* Definitions for Rs6000 running LynxOS.
+ Copyright (C) 1995, 1996, 2000, 2002, 2003, 2004, 2005, 2007
+ Free Software Foundation, Inc.
+ Contributed by David Henkel-Wallace, Cygnus Support (gumby@cygnus.com)
+ Rewritten by Adam Nemet, LynuxWorks 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 3, 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 COPYING3. If not see
+ <http://www.gnu.org/licenses/>. */
+
+/* Override the definition in sysv4.h. */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fputs (" (PowerPC/LynxOS)", stderr);
+
+/* Undefine the definition to enable the LynxOS default from the
+ top-level lynx.h. */
+
+#undef SUBTARGET_EXTRA_SPECS
+
+/* Get rid off the spec definitions from rs6000/sysv4.h. */
+
+#undef CPP_SPEC
+#define CPP_SPEC \
+"%{msoft-float: -D_SOFT_FLOAT} \
+ %(cpp_cpu) \
+ %(cpp_os_lynx)"
+
+/* LynxOS only supports big-endian on PPC so we override the
+ definition from sysv4.h. Since the LynxOS 4.0 compiler was set to
+ return every structure in memory regardless of their size we have
+ to emulate the same behavior here with disabling the SVR4 structure
+ returning. */
+
+#undef CC1_SPEC
+#define CC1_SPEC \
+"%{G*} %{mno-sdata:-msdata=none} \
+ %{maltivec:-mabi=altivec} \
+ -maix-struct-return"
+
+#undef ASM_SPEC
+#define ASM_SPEC \
+"%(asm_cpu) \
+ %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}"
+
+#undef STARTFILE_SPEC
+#undef ENDFILE_SPEC
+#undef LIB_SPEC
+#undef LINK_SPEC
+#define LINK_SPEC \
+"%{!msdata=none:%{G*}} %{msdata=none:-G0} \
+ %(link_os_lynx)"
+
+/* Override the definition from sysv4.h. */
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("__BIG_ENDIAN__"); \
+ builtin_define ("__powerpc__"); \
+ builtin_assert ("cpu=powerpc"); \
+ builtin_assert ("machine=powerpc"); \
+ builtin_define ("__PPC__"); \
+ } \
+ while (0)
+
+/* Override the rs6000.h definition. */
+
+#undef ASM_APP_ON
+#define ASM_APP_ON "#APP\n"
+
+/* Override the rs6000.h definition. */
+
+#undef ASM_APP_OFF
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* LynxOS does not do anything with .fixup plus let's not create
+ writable section for linkonce.r and linkonce.t. */
+
+#undef RELOCATABLE_NEEDS_FIXUP
+
+/* Override these from rs6000.h with the generic definition. */
+
+#undef SIZE_TYPE
+#undef ASM_OUTPUT_ALIGN
+#undef PREFERRED_DEBUGGING_TYPE
+
+/* The file rs6000.c defines TARGET_HAVE_TLS unconditionally to the
+ value of HAVE_AS_TLS. HAVE_AS_TLS is true as gas support for TLS
+ is detected by configure. Override the definition to false. */
+
+#undef HAVE_AS_TLS
+#define HAVE_AS_TLS 0
+
+#ifdef CRT_BEGIN
+/* This function is part of crtbegin*.o which is at the beginning of
+ the link and is called from .fini which is usually toward the end
+ of the executable. Make it longcall so that we don't limit the
+ text size of the executables to 32M. */
+
+static void __do_global_dtors_aux (void) __attribute__ ((longcall));
+#endif /* CRT_BEGIN */
+
+#ifdef CRT_END
+/* Similarly here. This function resides in crtend*.o which is toward
+ to end of the link and is called from .init which is at the
+ beginning. */
+
+static void __do_global_ctors_aux (void) __attribute__ ((longcall));
+#endif /* CRT_END */