Update copyright years.

[thirdparty/gcc.git] / gcc / config / alpha / linux.h

diff --git a/gcc/config/alpha/linux.h b/gcc/config/alpha/linux.h
index 712d66d8656cfd1e539652a8a0fabe5814327b68..3777f1817b8d0be67d48d4f552705baaee06081e 100644 (file)
--- a/gcc/config/alpha/linux.h
+++ b/gcc/config/alpha/linux.h
@@ -1,7 +1,6 @@
 /* Definitions of target machine for GNU compiler,
    for Alpha Linux-based GNU systems.
-   Copyright (C) 1996, 1997, 1998, 2002, 2003, 2004, 2005, 2006, 2007
-   Free Software Foundation, Inc.
+   Copyright (C) 1996-2020 Free Software Foundation, Inc.
    Contributed by Richard Henderson.
 
 This file is part of GCC.
@@ -20,9 +19,6 @@ 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/>.  */
 
-#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (MASK_FPREGS | MASK_GAS)
-
 #define TARGET_OS_CPP_BUILTINS()                               \
     do {                                                       \
        builtin_define ("__gnu_linux__");                       \
@@ -61,30 +57,62 @@ along with GCC; see the file COPYING3.  If not see
 #undef WCHAR_TYPE
 #define WCHAR_TYPE "int"
 
-/* Define this so that all GNU/Linux targets handle the same pragmas.  */
-#define HANDLE_PRAGMA_PACK_PUSH_POP
-
+#ifdef SINGLE_LIBC
+#define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
+#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
+#undef OPTION_MUSL
+#define OPTION_MUSL   (DEFAULT_LIBC == LIBC_MUSL)
+#else
 #define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
+#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
+#undef OPTION_MUSL
+#define OPTION_MUSL   (linux_libc == LIBC_MUSL)
+#endif
 
-/* 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)
+/* Determine what functions are present at the runtime;
+   this includes full c99 runtime and sincos.  */
+#undef TARGET_LIBC_HAS_FUNCTION
+#define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function
 
 #define TARGET_POSIX_IO
 
+/* Provide a STARTFILE_SPEC appropriate for ELF.  Here we add the
+   (even more) magical crtbegin.o file which provides part of the
+   support for getting C++ file-scope static object constructed
+   before entering `main'.  */
+
+#undef STARTFILE_SPEC
+#ifdef HAVE_LD_PIE
+#define STARTFILE_SPEC \
+  "%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
+   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#else
+#define STARTFILE_SPEC \
+  "%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
+   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#endif
+
+/* Provide a ENDFILE_SPEC appropriate for ELF.  Here we tack on the
+   magical crtend.o file which provides part of the support for
+   getting C++ file-scope static object constructed before entering
+   `main', followed by a normal ELF "finalizer" file, `crtn.o'.  */
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
+   %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
+
 #define LINK_GCC_C_SEQUENCE_SPEC \
-  "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
+  "%{static|static-pie:--start-group} %G %{!nolibc:%L} \
+   %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
 
 /* Use --as-needed -lgcc_s for eh support.  */
 #ifdef HAVE_LD_AS_NEEDED
 #define USE_LD_AS_NEEDED 1
 #endif
 
-#define MD_UNWIND_SUPPORT "config/alpha/linux-unwind.h"
-
 /* Define if long doubles should be mangled as 'g'.  */
 #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING