* Check in merge from gcc2. See ChangeLog.11 and ChangeLog.12

[gcc.git] / gcc / config / sparc / linux.h

diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
index 8129e4265e089f1bce947672e362a663abd8758b..a5807ecc632a6d7bda012ad6fce0e46a287c3353 100644 (file)
--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
@@ -1,5 +1,5 @@
-/* Definitions for SPARC running Linux with ELF
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Definitions for SPARC running Linux-based GNU systems with ELF.
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    Contributed by Eddie C. Dost (ecd@skynet.be)
 
 This file is part of GNU CC.
@@ -27,7 +27,7 @@ Boston, MA 02111-1307, USA.  */
 #undef HAVE_ATEXIT
 #define HAVE_ATEXIT
 
-/* Linux uses ctype from glibc.a. I am not sure how complete it is.
+/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
    For now, we play safe. It may change later. */
 
 #if 0
@@ -35,13 +35,14 @@ Boston, MA 02111-1307, USA.  */
 #define MULTIBYTE_CHARS 1
 #endif
 
-/* There are conflicting reports about whether this system uses
-   a different assembler syntax.  wilson@cygnus.com says # is right.  */
-#undef COMMENT_BEGIN
-#define COMMENT_BEGIN "#"
+#ifndef USE_GNULIBC_1
+#undef DEFAULT_VTABLE_THUNKS
+#define DEFAULT_VTABLE_THUNKS 1
+#endif
 
 /* Use stabs instead of DWARF debug format.  */
 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+
 #include <sparc/sysv4.h>
 
 #undef MD_EXEC_PREFIX
@@ -56,8 +57,8 @@ Boston, MA 02111-1307, USA.  */
         fprintf (FILE, "\t.version\t\"01.01\"\n");                      \
   } while (0)
 
-/* Provide a STARTFILE_SPEC appropriate for Linux.  Here we add
-   the Linux magical crtbegin.o file (see crtstuff.c) which
+/* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add
+   the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
    provides part of the support for getting C++ file-scope static
    object constructed before entering `main'. */
    
@@ -67,11 +68,11 @@ Boston, MA 02111-1307, USA.  */
      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
 
-/* Provide a ENDFILE_SPEC appropriate for Linux.  Here we tack on
-   the Linux magical crtend.o file (see crtstuff.c) which
+/* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on
+   the GNU/Linux magical crtend.o file (see crtstuff.c) which
    provides part of the support for getting C++ file-scope static
    object constructed before entering `main', followed by a normal
-   Linux "finalizer" file, `crtn.o'.  */
+   GNU/Linux "finalizer" file, `crtn.o'.  */
 
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC \
@@ -87,7 +88,7 @@ Boston, MA 02111-1307, USA.  */
 "
 
 #undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (sparc Linux/ELF)");
+#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
 
 #undef SIZE_TYPE
 #define SIZE_TYPE "unsigned int"
@@ -102,20 +103,21 @@ Boston, MA 02111-1307, USA.  */
 #define WCHAR_TYPE_SIZE BITS_PER_WORD
     
 #undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -Dsparc -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(sparc) -Amachine(sparc)"
+#define CPP_PREDEFINES "-D__ELF__ -Dunix -Dsparc -Dlinux -Asystem(unix) -Asystem(posix)"
 
-#undef CPP_SPEC
+#undef CPP_SUBTARGET_SPEC
 #ifdef USE_GNULIBC_1
-#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{msparclite:-D__sparclite__} %{mv8:-D__sparc_v8__} %{msupersparc:-D__supersparc__ -D__sparc_v8__} %{posix:-D_POSIX_SOURCE}"
+#define CPP_SUBTARGET_SPEC \
+"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
 #else
-#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{msparclite:-D__sparclite__} %{mv8:-D__sparc_v8__} %{msupersparc:-D__supersparc__ -D__sparc_v8__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+#define CPP_SUBTARGET_SPEC \
+"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
 #endif
 
 #undef LIB_SPEC
 /* We no longer link with libc_p.a or libg.a by default. If you
- * want to profile or debug the Linux C library, please add
- * -lc_p or -ggdb to LDFLAGS at the link time, respectively.
- */
+   want to profile or debug the GNU/Linux C library, please add
+   -lc_p or -ggdb to LDFLAGS at the link time, respectively.  */
 #if 1
 #ifdef USE_GNULIBC_1
 #define LIB_SPEC \
@@ -123,7 +125,8 @@ Boston, MA 02111-1307, USA.  */
      %{!profile:%{!ggdb:-lc} %{ggdb:-lg}}}"
 #else
 #define LIB_SPEC \
-  "%{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
+  "%{shared: -lc} \
+   %{!shared: %{mieee-fp:-lieee} %{pthread:-lpthread} \
      %{profile:-lc_p} %{!profile: -lc}}"
 #endif
 #else
@@ -133,7 +136,7 @@ Boston, MA 02111-1307, USA.  */
        %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}}"
 #endif
 
-/* Provide a LINK_SPEC appropriate for Linux.  Here we provide support
+/* Provide a LINK_SPEC appropriate for GNU/Linux.  Here we provide support
    for the special GCC options -static and -shared, which allow us to
    link things in one of these three modes by applying the appropriate
    combinations of options at link-time. We like to support here for
@@ -231,7 +234,7 @@ do {                                                                        \
 \f
 #if 0
 /* Define for support of TFmode long double and REAL_ARITHMETIC.
-   Sparc ABI says that long double is 4 words. Linux does not support
+   Sparc ABI says that long double is 4 words. GNU/Linux does not support
    long double yet.  */
 #define LONG_DOUBLE_TYPE_SIZE 128
 #endif