Update copyright years.

[thirdparty/gcc.git] / gcc / config / darwin.h

diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
index 7d093c9077af04b15da3613c0cc92b4c35dff867..3a130291a38715d9c8cec2db5cf9b579d7d83972 100644 (file)
--- a/gcc/config/darwin.h
+++ b/gcc/config/darwin.h
@@ -1,5 +1,5 @@
 /* Target definitions for Darwin (Mac OS X) systems.
-   Copyright (C) 1989-2015 Free Software Foundation, Inc.
+   Copyright (C) 1989-2017 Free Software Foundation, Inc.
    Contributed by Apple Computer Inc.
 
 This file is part of GCC.
@@ -165,6 +165,12 @@ extern GTY(()) int darwin_ms_struct;
    specifying the handling of options understood by generic Unix
    linkers, and for positional arguments like libraries.  */
 
+#if LD64_HAS_EXPORT_DYNAMIC
+#define DARWIN_EXPORT_DYNAMIC " %{rdynamic:-export_dynamic}"
+#else
+#define DARWIN_EXPORT_DYNAMIC " %{rdynamic: %nrdynamic is not supported}"
+#endif
+
 #define LINK_COMMAND_SPEC_A \
    "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
     %(linker)" \
@@ -177,14 +183,17 @@ extern GTY(()) int darwin_ms_struct;
     %{o*}%{!o:-o a.out} \
     %{!nostdlib:%{!nostartfiles:%S}} \
     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
-    %{fopenacc|fopenmp|ftree-parallelize-loops=*: \
+    %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): \
       %{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
+    %{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}\
     %{fgnu-tm: \
       %{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
     %{!nostdlib:%{!nodefaultlibs:\
       %{%:sanitize(address): -lasan } \
       %{%:sanitize(undefined): -lubsan } \
-      %(link_ssp) %(link_gcc_c_sequence)\
+      %(link_ssp) \
+      " DARWIN_EXPORT_DYNAMIC " %<rdynamic \
+      %(link_gcc_c_sequence) \
     }}\
     %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
 
@@ -390,22 +399,40 @@ extern GTY(()) int darwin_ms_struct;
    %:version-compare(>< 10.6 10.8 mmacosx-version-min= -lcrt1.10.6.o)  \
    %{fgnu-tm: -lcrttms.o}"
 
-/* Default Darwin ASM_SPEC, very simple.  */
+#ifdef HAVE_AS_MMACOSX_VERSION_MIN_OPTION
+/* Emit macosx version (but only major).  */
+#define ASM_MMACOSX_VERSION_MIN_SPEC \
+  " %{asm_macosx_version_min=*: -mmacosx-version-min=%*} %<asm_macosx_version_min=*"
+#else
+#define ASM_MMACOSX_VERSION_MIN_SPEC " %<asm_macosx_version_min=*"
+#endif
+
+/* When we detect that we're cctools or llvm as, we need to insert the right
+   additional options.  */
+#if HAVE_GNU_AS
+#define ASM_OPTIONS ""
+#else
+#define ASM_OPTIONS "%{v} %{w:-W} %{I*}"
+#endif
+
+/* Default Darwin ASM_SPEC, very simple. */
 #define ASM_SPEC "-arch %(darwin_arch) \
+  " ASM_OPTIONS " \
   %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
-  %{static}"
+  %{static}" ASM_MMACOSX_VERSION_MIN_SPEC
 
 /* Default ASM_DEBUG_SPEC.  Darwin's as cannot currently produce dwarf
    debugging data.  */
 
 #define ASM_DEBUG_SPEC  "%{g*:%{!g0:%{!gdwarf*:--gstabs}}}"
 
-/* We still allow output of STABS.  */
-
+/* We still allow output of STABS if the assembler supports it.  */
+#ifdef HAVE_AS_STABS_DIRECTIVE
 #define DBX_DEBUGGING_INFO 1
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#endif
 
 #define DWARF2_DEBUGGING_INFO 1
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
 
 #define DEBUG_FRAME_SECTION    "__DWARF,__debug_frame,regular,debug"
 #define DEBUG_INFO_SECTION     "__DWARF,__debug_info,regular,debug"
@@ -422,8 +449,6 @@ extern GTY(()) int darwin_ms_struct;
 
 #define TARGET_WANT_DEBUG_PUB_SECTIONS true
 
-#define TARGET_FORCE_AT_COMP_DIR true
-
 /* When generating stabs debugging, use N_BINCL entries.  */
 
 #define DBX_USE_BINCL
@@ -716,9 +741,16 @@ extern GTY(()) section * darwin_sections[NUM_DARWIN_SECTIONS];
   { "weak_import", 0, 0, true, false, false,                                \
     darwin_handle_weak_import_attribute, false }
 
+/* Make local constant labels linker-visible, so that if one follows a
+   weak_global constant, ld64 will be able to separate the atoms.  */
 #undef ASM_GENERATE_INTERNAL_LABEL
 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)  \
-  sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
+  do {                                                 \
+    if (strcmp ("LC", PREFIX) == 0)                    \
+      sprintf (LABEL, "*%s%ld", "lC", (long)(NUM));    \
+    else                                               \
+      sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM));  \
+  } while (0)
 
 #undef TARGET_ASM_MARK_DECL_PRESERVED
 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
@@ -823,9 +855,6 @@ enum machopic_addr_class {
 #define EH_FRAME_SECTION_NAME   "__TEXT"
 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
 
-/* Java runtime class list.  */
-#define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
-
 #undef ASM_PREFERRED_EH_DATA_FORMAT
 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
   (((CODE) == 2 && (GLOBAL) == 1) \
@@ -833,10 +862,10 @@ enum machopic_addr_class {
      ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
 
 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2)  \
-  darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
+  darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2, 0)
 
-#define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,BASE)  \
-  darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, BASE)
+#define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,OFFSET,BASE)  \
+  darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, OFFSET, BASE)
 
 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE)    \
       if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) {                           \
@@ -928,4 +957,15 @@ extern void darwin_driver_init (unsigned int *,struct cl_decoded_option **);
    fall-back default.  */
 #define DEF_MIN_OSX_VERSION "10.5"
 
+/* Later versions of ld64 support coalescing weak code/data without requiring
+   that they be placed in specially identified sections.  This is the earliest
+   _tested_ version known to support this so far.  */
+#define MIN_LD64_NO_COAL_SECTS "236.4"
+
+#ifndef LD64_VERSION
+#define LD64_VERSION "85.2"
+#else
+#define DEF_LD64 LD64_VERSION
+#endif
+
 #endif /* CONFIG_DARWIN_H */