* config/h8300/h8300.md: Fix formatting.

[pf3gnuchains/gcc-fork.git] / gcc / config / darwin.h

diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
index 61cbcd8..27ce49f 100644 (file)
--- a/gcc/config/darwin.h
+++ b/gcc/config/darwin.h
@@ -35,6 +35,12 @@ Boston, MA 02111-1307, USA.  */
    leave it undefined and expect system builders to set configure args
    correctly.  */
 
+/* One of Darwin's NeXT legacies is the Mach-O format, which is partly
+   like a.out and partly like COFF, with additional features like
+   multi-architecture binary support.  */
+
+#define OBJECT_FORMAT_MACHO
+
 /* Suppress g++ attempt to link in the math library automatically.
    (Some Darwin versions have a libm, but they seem to cause problems
    for C++ executables.)  */
@@ -78,11 +84,6 @@ Boston, MA 02111-1307, USA.  */
 #undef DEFAULT_PCC_STRUCT_RETURN
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
-/* Don't warn about MacOS-style 'APPL' four-char-constants.  */
-
-#undef WARN_FOUR_CHAR_CONSTANTS
-#define WARN_FOUR_CHAR_CONSTANTS 0
-
 /* Machine dependent cpp options.  */
 
 #undef CPP_SPEC
@@ -93,12 +94,17 @@ Boston, MA 02111-1307, USA.  */
 #undef LIB_SPEC
 #define LIB_SPEC "%{!static:-lSystem}"
 
-/* We specify crt0.o as -lcrt0.o so that ld will search the library path. */
+/* We specify crt0.o as -lcrt0.o so that ld will search the library path.  */
 
 #undef STARTFILE_SPEC
 #define STARTFILE_SPEC  \
-  "%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o}} \
-    %{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o}}"
+  "%{pg:%{static:-lgcrt0.o}%{!static:-lgcrt1.o} -lcrt2.o} \
+    %{!pg:%{static:-lcrt0.o}%{!static:-lcrt1.o} -lcrt2.o}"
+
+/* The native Darwin linker doesn't necessarily place files in the order
+   that they're specified on the link line.  Thus, it is pointless
+   to put anything in ENDFILE_SPEC.  */
+/* #define ENDFILE_SPEC "" */
 
 #undef DOLLARS_IN_IDENTIFIERS
 #define DOLLARS_IN_IDENTIFIERS 2
@@ -107,12 +113,6 @@ Boston, MA 02111-1307, USA.  */
 
 #define DBX_DEBUGGING_INFO 1
 
-/* Also enable Dwarf 2 as an option.  */
-
-#define DWARF2_DEBUGGING_INFO 1
-
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-
 /* When generating stabs debugging, use N_BINCL entries.  */
 
 #define DBX_USE_BINCL
@@ -121,7 +121,7 @@ Boston, MA 02111-1307, USA.  */
 
 #define DBX_CONTIN_LENGTH 0
 
-/* gdb needs a null N_SO at the end of each file for scattered loading. */
+/* gdb needs a null N_SO at the end of each file for scattered loading.  */
 
 #undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)                        \
@@ -142,6 +142,9 @@ do { text_section ();                                                       \
 #define TARGET_ASM_CONSTRUCTOR  machopic_asm_out_constructor
 #define TARGET_ASM_DESTRUCTOR   machopic_asm_out_destructor
 
+/* Always prefix with an underscore.  */
+
+#define USER_LABEL_PREFIX "_"
 
 /* Don't output a .file directive.  That is only used by the assembler for
    error reporting.  */
@@ -164,7 +167,7 @@ do { text_section ();                                                       \
 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
   fprintf (FILE, "\t.space %d\n", SIZE)
 
-/* Give ObjC methods pretty symbol names. */
+/* Give ObjC methods pretty symbol names.  */
 
 #undef OBJC_GEN_METHOD_LABEL
 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
@@ -282,18 +285,13 @@ do { text_section ();                                                     \
       machopic_define_name (NAME);                                     \
   } while (0)
 
-/* Output nothing for #ident.  */
-
-#undef ASM_OUTPUT_IDENT
-#define ASM_OUTPUT_IDENT(FILE, NAME)
-
 /* The maximum alignment which the object file format can support.
    For Mach-O, this is 2^15.  */
 
 #undef MAX_OFILE_ALIGNMENT
 #define MAX_OFILE_ALIGNMENT 0x8000
 
-/* Create new Mach-O sections. */
+/* Create new Mach-O sections.  */
 
 #undef SECTION_FUNCTION
 #define SECTION_FUNCTION(FUNCTION, SECTION, DIRECTIVE, OBJC)           \
@@ -441,7 +439,7 @@ SECTION_FUNCTION (machopic_picsymbol_stub_section,  \
                ".picsymbol_stub", 0)                   \
 SECTION_FUNCTION (darwin_exception_section,            \
                in_darwin_exception,                    \
-               ".section __TEXT,__gcc_except_tab", 0)  \
+               ".section __DATA,__gcc_except_tab", 0)  \
 SECTION_FUNCTION (darwin_eh_frame_section,             \
                in_darwin_eh_frame,                     \
                ".section __TEXT,__eh_frame", 0)        \
@@ -613,7 +611,14 @@ enum machopic_addr_class {
   
 #undef ASM_PREFERRED_EH_DATA_FORMAT
 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)  \
-  (((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
+  (((CODE) == 2 && (GLOBAL) == 1) \
+   ? (DW_EH_PE_pcrel | DW_EH_PE_indirect) : \
+     ((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)
+
+#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 
 #define DARWIN_REGISTER_TARGET_PRAGMAS(PFILE)                          \
   do {                                                                 \