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2011-09-13 Paul Brook <paul@codesourcery.com>
[pf3gnuchains/gcc-fork.git] / gcc / config / arm / bpabi.h
index fcfbb55..7b5ee62 100644 (file)
@@ -1,5 +1,5 @@
 /* Configuration file for ARM BPABI targets.
-   Copyright (C) 2004, 2005, 2007, 2008
+   Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010
    Free Software Foundation, Inc.
    Contributed by CodeSourcery, LLC   
 
 #define TARGET_BPABI (TARGET_AAPCS_BASED)
 
 /* BPABI targets use EABI frame unwinding tables.  */
-#define TARGET_UNWIND_INFO 1
+#undef ARM_UNWIND_INFO
+#define ARM_UNWIND_INFO 1
 
 /* Section 4.1 of the AAPCS requires the use of VFP format.  */
 #undef  FPUTYPE_DEFAULT
-#define FPUTYPE_DEFAULT FPUTYPE_VFP
+#define FPUTYPE_DEFAULT "vfp"
 
 /* TARGET_BIG_ENDIAN_DEFAULT is set in
    config.gcc for big endian configurations.  */
 /* The BPABI integer comparison routines return { -1, 0, 1 }.  */
 #define TARGET_LIB_INT_CMP_BIASED !TARGET_BPABI
 
+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
+  "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
+
+#define BE8_LINK_SPEC " %{mbig-endian:%{march=armv7-a|mcpu=cortex-a5"\
+  "|mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15:%{!r:--be8}}}"
+
 /* Tell the assembler to build BPABI binaries.  */
 #undef  SUBTARGET_EXTRA_ASM_SPEC
-#define SUBTARGET_EXTRA_ASM_SPEC "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=4}"
+#define SUBTARGET_EXTRA_ASM_SPEC \
+  "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5}" TARGET_FIX_V4BX_SPEC
 
 #ifndef SUBTARGET_EXTRA_LINK_SPEC
 #define SUBTARGET_EXTRA_LINK_SPEC ""
 #endif
 
-#define ANDROID_LINK_SPEC \
-"%{mandroid:" \
-   "%{!static:" \
-      "%{shared: -Bsymbolic} " \
-      "%{!shared:" \
-         "%{rdynamic:-export-dynamic} " \
-         "%{!dynamic-linker:-dynamic-linker /system/bin/linker}}}} "
-
 /* The generic link spec in elf.h does not support shared libraries.  */
-#undef  LINK_SPEC
-#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} "          \
+#define BPABI_LINK_SPEC \
+  "%{mbig-endian:-EB} %{mlittle-endian:-EL} "          \
   "%{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} "       \
-  ANDROID_LINK_SPEC                                                    \
-  "-X" SUBTARGET_EXTRA_LINK_SPEC
-
-#if defined (__thumb__)
-#define RENAME_LIBRARY_SET ".thumb_set"
-#else
-#define RENAME_LIBRARY_SET ".set"
-#endif
-
-/* Make __aeabi_AEABI_NAME an alias for __GCC_NAME.  */
-#define RENAME_LIBRARY(GCC_NAME, AEABI_NAME)           \
-  __asm__ (".globl\t__aeabi_" #AEABI_NAME "\n"         \
-          RENAME_LIBRARY_SET "\t__aeabi_" #AEABI_NAME  \
-            ", __" #GCC_NAME "\n");
-
-/* Give some libgcc functions an additional __aeabi name.  */
-#ifdef L_muldi3
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
-#endif
-#ifdef L_muldi3
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
-#endif
-#ifdef L_fixdfdi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixdfdi, d2lz)
-#endif
-#ifdef L_fixunsdfdi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfdi, d2ulz)
-#endif
-#ifdef L_fixsfdi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixsfdi, f2lz)
-#endif
-#ifdef L_fixunssfdi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfdi, f2ulz)
-#endif
-#ifdef L_floatdidf
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdidf, l2d)
-#endif
-#ifdef L_floatdisf
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdisf, l2f)
-#endif
+  "-X" SUBTARGET_EXTRA_LINK_SPEC TARGET_FIX_V4BX_SPEC BE8_LINK_SPEC
 
-/* These renames are needed on ARMv6M.  Other targets get them from
-   assembly routines.  */
-#ifdef L_fixunsdfsi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfsi, d2uiz)
-#endif
-#ifdef L_fixunssfsi
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfsi, f2uiz)
-#endif
-#ifdef L_floatundidf
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundidf, ul2d)
-#endif
-#ifdef L_floatundisf
-#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundisf, ul2f)
-#endif
+#undef  LINK_SPEC
+#define LINK_SPEC BPABI_LINK_SPEC
 
 /* The BPABI requires that we always use an out-of-line implementation
    of RTTI comparison, even if the target supports weak symbols,
   do                                                   \
     {                                                  \
       builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0");     \
-      if (TARGET_ANDROID)                              \
-       builtin_define ("__ANDROID__");                 \
     }                                                  \
   while (false)
 
 #define INIT_ARRAY_SECTION_ASM_OP ARM_EABI_CTORS_SECTION_OP
 #define FINI_ARRAY_SECTION_ASM_OP ARM_EABI_DTORS_SECTION_OP
 
-/* Android uses -fno-rtti and -fno-exceptions by default. */
-
-#undef CC1_SPEC
-#define CC1_SPEC "%{mandroid:%{!fexceptions:-fno-exceptions}}"
-
-#undef CC1PLUS_SPEC
-#define CC1PLUS_SPEC "%{mandroid:%{!frtti:-fno-rtti}}"
-
-/* Startfile and endfile specs are the same as unknown-elf.h except
-   for Android. */
-
-#undef LIB_SPEC
-#define LIB_SPEC \
-"%{!mandroid:%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}} " \
-"%{mandroid:-lc %{!static:-ldl}}"
-
-#undef  STARTFILE_SPEC
-#define STARTFILE_SPEC \
-"%{!mandroid:crti%O%s crtbegin%O%s crt0%O%s} " \
-"%{mandroid:" \
-  "%{!shared:" \
-    "%{static:crtbegin_static%O%s} " \
-    "%{!static:crtbegin_dynamic%O%s}}}"
-
-#undef  ENDFILE_SPEC
-#define ENDFILE_SPEC \
-"%{!mandroid:crtend%O%s crtn%O%s} "\
-"%{mandroid:" \
-  "%{!shared:crtend%O%s}}"
+/* The legacy _mcount implementation assumes r11 points to a
+    4-word APCS frame.  This is generally not true for EABI targets,
+    particularly not in Thumb mode.  We assume the mcount
+    implementation does not require a counter variable (No Counter).
+    Note that __gnu_mcount_nc will be entered with a misaligned stack.
+    This is OK because it uses a special calling convention anyway.  */
+
+#undef  NO_PROFILE_COUNTERS
+#define NO_PROFILE_COUNTERS 1
+#undef  ARM_FUNCTION_PROFILER
+#define ARM_FUNCTION_PROFILER(STREAM, LABELNO)                         \
+{                                                                      \
+  fprintf (STREAM, "\tpush\t{lr}\n");                                  \
+  fprintf (STREAM, "\tbl\t__gnu_mcount_nc\n");                         \
+}
+
+#undef SUBTARGET_FRAME_POINTER_REQUIRED
+#define SUBTARGET_FRAME_POINTER_REQUIRED 0
+
+/* __gnu_mcount_nc restores the original LR value before returning.  Ensure
+   that there is no unnecessary hook set up.  */
+#undef PROFILE_HOOK