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2014-04-09 Richard Henderson <rth@redhat.com>
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* gcc-interface/Makefile.in: Support aarch64-linux.
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* init.c: Enable alternate stack support also on aarch64.
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* types.h (Fat_Pointer): Remove aligned attribute.
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--- gcc/ada/gcc-interface/Makefile.in
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+++ gcc/ada/gcc-interface/Makefile.in
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@@ -2123,6 +2123,44 @@ ifeq ($(strip $(filter-out alpha% linux%,$(arch) $(osys))),)
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LIBRARY_VERSION := $(LIB_VERSION)
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endif
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+# AArch64 Linux
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+ifeq ($(strip $(filter-out aarch64% linux%,$(arch) $(osys))),)
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+ LIBGNAT_TARGET_PAIRS = \
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+ a-exetim.adb
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+ a-exetim.ads
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+ a-intnam.ads
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+ a-synbar.adb
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+ a-synbar.ads
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+ s-inmaop.adb
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+ s-intman.adb
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+ s-linux.ads
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+ s-mudido.adb
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+ s-osinte.ads
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+ s-osinte.adb
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+ s-osprim.adb
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+ s-taprop.adb
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+ s-tasinf.ads
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+ s-tasinf.adb
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+ s-tpopsp.adb
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+ s-taspri.ads
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+ g-sercom.adb
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+ $(ATOMICS_TARGET_PAIRS) \
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+ $(ATOMICS_BUILTINS_TARGET_PAIRS) \
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+ system.ads
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+ ## ^^ Note the above is a pretty-close placeholder.
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+
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+ TOOLS_TARGET_PAIRS = \
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+ mlib-tgt-specific.adb
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+ indepsw.adb
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+
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+ EXTRA_GNATRTL_TASKING_OBJS=s-linux.o a-exetim.o
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+ EH_MECHANISM=-gcc
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+ THREADSLIB=-lpthread -lrt
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+ GNATLIB_SHARED=gnatlib-shared-dual
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+ GMEM_LIB = gmemlib
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+ LIBRARY_VERSION := $(LIB_VERSION)
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+endif
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+
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# x86-64 Linux
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ifeq ($(strip $(filter-out %x86_64 linux%,$(arch) $(osys))),)
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LIBGNAT_TARGET_PAIRS = \
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--- gcc/ada/init.c
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+++ gcc/ada/init.c
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@@ -562,7 +562,9 @@ __gnat_error_handler (int sig, siginfo_t *si ATTRIBUTE_UNUSED, void *ucontext)
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Raise_From_Signal_Handler (exception, msg);
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}
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-#if defined (i386) || defined (__x86_64__) || defined (__powerpc__)
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+#if defined (i386) || defined (__x86_64__) || defined (__powerpc__) \
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+ || defined (__aarch64__)
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+#define HAVE_GNAT_ALTERNATE_STACK 1
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/* This must be in keeping with System.OS_Interface.Alternate_Stack_Size. */
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char __gnat_alternate_stack[16 * 1024]; /* 2 * SIGSTKSZ */
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#endif
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@@ -603,7 +605,7 @@ __gnat_install_handler (void)
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handled properly, avoiding a SEGV generation from stack usage by the
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handler itself. */
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-#if defined (i386) || defined (__x86_64__) || defined (__powerpc__)
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+#ifdef HAVE_GNAT_ALTERNATE_STACK
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stack_t stack;
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stack.ss_sp = __gnat_alternate_stack;
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stack.ss_size = sizeof (__gnat_alternate_stack);
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@@ -624,7 +626,7 @@ __gnat_install_handler (void)
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sigaction (SIGILL, &act, NULL);
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if (__gnat_get_interrupt_state (SIGBUS) != 's')
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sigaction (SIGBUS, &act, NULL);
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-#if defined (i386) || defined (__x86_64__) || defined (__powerpc__)
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+#ifdef HAVE_GNAT_ALTERNATE_STACK
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act.sa_flags |= SA_ONSTACK;
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#endif
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if (__gnat_get_interrupt_state (SIGSEGV) != 's')
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--- gcc/ada/types.h
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+++ gcc/ada/types.h
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@@ -79,8 +79,7 @@ typedef Char *Str_Ptr;
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/* Types for the fat pointer used for strings and the template it
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points to. */
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typedef struct {int Low_Bound, High_Bound; } String_Template;
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-typedef struct {const char *Array; String_Template *Bounds; }
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- __attribute ((aligned (sizeof (char *) * 2))) Fat_Pointer;
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+typedef struct {const char *Array; String_Template *Bounds; } Fat_Pointer;
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/* Types for Node/Entity Kinds: */
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