linux: i386/x86_64: make the os-specific headers libc-agnostic.

+ libc-specific definitions should now be provided in dedicated
  headers, for instance by adding --include=libc-defs.h to the
  relevant compiler flags.

signed-off by Z. Gilboa; see copying.midipix (9cd0746c) for additional information.

1 files changed, 0 insertions, 99 deletions

diff --git a/gcc/config/linux.h b/gcc/config/linux.h
deleted file mode 100644
index 00b4f1c1c..000000000
--- a/gcc/config/linux.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Definitions for systems using the Linux kernel, with or without
-   MMU, using ELF at the compiler level but possibly FLT for final
-   linked executables and shared libraries in some no-MMU cases, and
-   possibly with a choice of libc implementations.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003, 2004, 2005, 2006,
-   2007, 2009, 2010, 2011 Free Software Foundation, Inc.
-   Contributed by Eric Youngdale.
-   Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org).
-
-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.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-<http://www.gnu.org/licenses/>.  */
-
-/* C libraries supported on Linux.  */
-#ifdef SINGLE_LIBC
-#define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
-#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
-#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
-#else
-#define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
-#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
-#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
-#endif
-
-#define LINUX_TARGET_OS_CPP_BUILTINS()				\
-    do {							\
-	if (OPTION_GLIBC)					\
-	  builtin_define ("__gnu_linux__");			\
-	builtin_define_std ("linux");				\
-	builtin_define_std ("unix");				\
-	builtin_assert ("system=linux");			\
-	builtin_assert ("system=unix");				\
-	builtin_assert ("system=posix");			\
-    } while (0)
-
-/* Determine which dynamic linker to use depending on whether GLIBC or
-   uClibc or Bionic is the default C library and whether
-   -muclibc or -mglibc or -mbionic has been passed to change the default.  */
-
-#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3)	\
-  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
-
-#if DEFAULT_LIBC == LIBC_GLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
-  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
-#elif DEFAULT_LIBC == LIBC_UCLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
-  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
-#elif DEFAULT_LIBC == LIBC_BIONIC
-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
-  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
-#else
-#error "Unsupported DEFAULT_LIBC"
-#endif /* DEFAULT_LIBC */
-
-/* For most targets the following definitions suffice;
-   GLIBC_DYNAMIC_LINKER must be defined for each target using them, or
-   GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets
-   supporting both 32-bit and 64-bit compilation.  */
-#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
-#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
-#define BIONIC_DYNAMIC_LINKER "/system/bin/linker"
-#define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
-#define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
-
-#define LINUX_DYNAMIC_LINKER						\
-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,	\
-			 BIONIC_DYNAMIC_LINKER)
-#define LINUX_DYNAMIC_LINKER32						\
-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
-			 BIONIC_DYNAMIC_LINKER32)
-#define LINUX_DYNAMIC_LINKER64						\
-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
-			 BIONIC_DYNAMIC_LINKER64)
-
-/* Determine whether the entire c99 runtime
-   is present in the runtime library.  */
-#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
-
-/* Whether we have sincos that follows the GNU extension.  */
-#define TARGET_HAS_SINCOS (OPTION_GLIBC || OPTION_BIONIC)