#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
+\f
+/* ??? This stuff is copied from config/svr3.h. In the future,
+ this file should be rewritten to include config/svr3.h
+ and override what isn't right. */
+
+/* Support const sections and the ctors and dtors sections for g++.
+ Note that there appears to be two different ways to support const
+ sections at the moment. You can either #define the symbol
+ READONLY_DATA_SECTION (giving it some code which switches to the
+ readonly data section) or else you can #define the symbols
+ EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
+ SELECT_RTX_SECTION. We do both here just to be on the safe side.
+ However, use of the const section is turned off by default
+ unless the specific tm.h file turns it on by defining
+ USE_CONST_SECTION as 1. */
+
+/* Define a few machine-specific details of the implementation of
+ constructors.
+
+ The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
+ and CTOR_LIST_END to contribute to the .init section an instruction to
+ push a word containing 0 (or some equivalent of that).
+
+ Define ASM_OUTPUT_CONSTRUCTOR to push the address of the constructor. */
+
+#define USE_CONST_SECTION 0
+
+#define INIT_SECTION_ASM_OP ".section\t.init"
+#define FINI_SECTION_ASM_OP ".section .fini,\"x\""
+#define CONST_SECTION_ASM_OP ".section\t.rodata, \"x\""
+#define CTORS_SECTION_ASM_OP INIT_SECTION_ASM_OP
+#define DTORS_SECTION_ASM_OP FINI_SECTION_ASM_OP
+
+/* CTOR_LIST_BEGIN and CTOR_LIST_END are machine-dependent
+ because they push on the stack. */
+
+#ifdef STACK_GROWS_DOWNWARD
+
+/* Constructor list on stack is in reverse order. Go to the end of the
+ list and go backwards to call constructors in the right order. */
+#define DO_GLOBAL_CTORS_BODY \
+do { \
+ func_ptr *p, *beg = alloca (0); \
+ for (p = beg; *p; p++) \
+ ; \
+ while (p != beg) \
+ (*--p) (); \
+} while (0)
+
+#else
+
+/* Constructor list on stack is in correct order. Just call them. */
+#define DO_GLOBAL_CTORS_BODY \
+do { \
+ func_ptr *p, *beg = alloca (0); \
+ for (p = beg; *p; ) \
+ (*p++) (); \
+} while (0)
+
+#endif /* STACK_GROWS_DOWNWARD */
+
+/* Add extra sections .init and .fini, in addition to .bss from att386.h. */
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS in_const, in_bss, in_init, in_fini
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+ CONST_SECTION_FUNCTION \
+ BSS_SECTION_FUNCTION \
+ INIT_SECTION_FUNCTION \
+ FINI_SECTION_FUNCTION
+
+#define BSS_SECTION_FUNCTION \
+void \
+bss_section () \
+{ \
+ if (in_section != in_bss) \
+ { \
+ fprintf (asm_out_file, "\t%s\n", BSS_SECTION_ASM_OP); \
+ in_section = in_bss; \
+ } \
+}
+
+#define INIT_SECTION_FUNCTION \
+void \
+init_section () \
+{ \
+ if (in_section != in_init) \
+ { \
+ fprintf (asm_out_file, "\t%s\n", INIT_SECTION_ASM_OP); \
+ in_section = in_init; \
+ } \
+}
+
+#define FINI_SECTION_FUNCTION \
+void \
+fini_section () \
+{ \
+ if (in_section != in_fini) \
+ { \
+ fprintf (asm_out_file, "\t%s\n", FINI_SECTION_ASM_OP); \
+ in_section = in_fini; \
+ } \
+}
+
+#define READONLY_DATA_SECTION() const_section ()
+
+#define CONST_SECTION_FUNCTION \
+void \
+const_section () \
+{ \
+ extern void text_section(); \
+ if (!USE_CONST_SECTION) \
+ text_section(); \
+ else if (in_section != in_const) \
+ { \
+ fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
+ in_section = in_const; \
+ } \
+}
+
+/* The ctors and dtors sections are not normally put into use
+ by EXTRA_SECTIONS and EXTRA_SECTION_FUNCTIONS as defined in svr3.h,
+ but it can't hurt to define these macros for whatever systems use them. */
+#define CTORS_SECTION_FUNCTION \
+void \
+ctors_section () \
+{ \
+ if (in_section != in_ctors) \
+ { \
+ fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
+ in_section = in_ctors; \
+ } \
+}
+
+#define DTORS_SECTION_FUNCTION \
+void \
+dtors_section () \
+{ \
+ if (in_section != in_dtors) \
+ { \
+ fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
+ in_section = in_dtors; \
+ } \
+}
+
+/* This is machine-dependent
+ because it needs to push something on the stack. */
+#undef ASM_OUTPUT_CONSTRUCTOR
+
+/* A C statement (sans semicolon) to output an element in the table of
+ global destructors. */
+#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
+ do { \
+ fini_section (); \
+ fprintf (FILE, "%s\t ", ASM_LONG); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } while (0)
+
+/* A C statement or statements to switch to the appropriate
+ section for output of DECL. DECL is either a `VAR_DECL' node
+ or a constant of some sort. RELOC indicates whether forming
+ the initial value of DECL requires link-time relocations. */
+
+#define SELECT_SECTION(DECL,RELOC) \
+{ \
+ if (TREE_CODE (DECL) == STRING_CST) \
+ { \
+ if (! flag_writable_strings) \
+ const_section (); \
+ else \
+ data_section (); \
+ } \
+ else if (TREE_CODE (DECL) == VAR_DECL) \
+ { \
+ if ((0 && RELOC) /* should be (flag_pic && RELOC) */ \
+ || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
+ data_section (); \
+ else \
+ const_section (); \
+ } \
+ else \
+ const_section (); \
+}
+
+/* A C statement or statements to switch to the appropriate
+ section for output of RTX in mode MODE. RTX is some kind
+ of constant in RTL. The argument MODE is redundant except
+ in the case of a `const_int' rtx. Currently, these always
+ go into the const section. */
+
+#define SELECT_RTX_SECTION(MODE,RTX) const_section()
+\f
+/* This is copied from i386/sysv3.h. */
+
+/* Define a few machine-specific details of the implementation of
+ constructors.
+
+ The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN
+ and CTOR_LIST_END to contribute to the .init section an instruction to
+ push a word containing 0 (or some equivalent of that).
+
+ ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the
+ constructor. */
+
+#undef INIT_SECTION_ASM_OP
+#define INIT_SECTION_ASM_OP ".section .init,\"x\""
+
+#define CTOR_LIST_BEGIN \
+ asm (INIT_SECTION_ASM_OP); \
+ asm ("pushl $0")
+#define CTOR_LIST_END CTOR_LIST_BEGIN
+
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
+ do { \
+ init_section (); \
+ fprintf (FILE, "\tpushl $"); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } while (0)
git://gcc.gnu.org / gcc.git / commitdiff