/* Definitions of target machine for GNU compiler,
for Thumb with ELF obj format.
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
#endif
#define RDATA_SECTION_FUNCTION \
-void \
-rdata_section () \
-{ \
- if (in_section != in_rdata) \
- { \
- fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \
- in_section = in_rdata; \
- } \
+void \
+rdata_section () \
+{ \
+ if (in_section != in_rdata) \
+ { \
+ fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \
+ in_section = in_rdata; \
+ } \
}
#define CTOR_LIST_BEGIN \
func_ptr __DTOR_END__[1] = { (func_ptr) 0 };
#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; \
- } \
+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; \
- } \
+void \
+dtors_section () \
+{ \
+ if (in_section != in_dtors) \
+ { \
+ fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
+ in_section = in_dtors; \
+ } \
}
\f
/* Support the ctors/dtors sections for g++. */
DECL_SECTION_NAME (DECL) = build_string (len, string); \
} \
while (0)
+
+/* This is how we tell the assembler that a symbol is weak. */
+#ifndef ASM_WEAKEN_LABEL
+#define ASM_WEAKEN_LABEL(FILE, NAME) \
+ do \
+ { \
+ fputs ("\t.weak\t", FILE); \
+ assemble_name (FILE, NAME); \
+ fputc ('\n', FILE); \
+ } \
+ while (0)
+#endif
+
+#ifndef TYPE_ASM_OP
+
+/* These macros generate the special .type and .size directives which
+ are used to set the corresponding fields of the linker symbol table
+ entries in an ELF object file under SVR4. These macros also output
+ the starting labels for the relevant functions/objects. */
+#define TYPE_ASM_OP ".type"
+#define SIZE_ASM_OP ".size"
+
+/* The following macro defines the format used to output the second
+ operand of the .type assembler directive. Different svr4 assemblers
+ expect various different forms for this operand. The one given here
+ is just a default. You may need to override it in your machine-
+ specific tm.h file (depending upon the particulars of your assembler). */
+#define TYPE_OPERAND_FMT "%s"
+
+/* Write the extra assembler code needed to declare a function's result.
+ Most svr4 assemblers don't require any special declaration of the
+ result value, but there are exceptions. */
+#ifndef ASM_DECLARE_RESULT
+#define ASM_DECLARE_RESULT(FILE, RESULT)
+#endif
+
+/* Write the extra assembler code needed to declare a function properly.
+ Some svr4 assemblers need to also have something extra said about the
+ function's return value. We allow for that here. */
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+ do \
+ { \
+ fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
+ putc ('\n', FILE); \
+ ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
+ if (! is_called_in_ARM_mode (decl)) \
+ fprintf (FILE, "\t.thumb_func\n") ; \
+ else \
+ fprintf (FILE, "\t.code\t32\n") ; \
+ ASM_OUTPUT_LABEL(FILE, NAME); \
+ } \
+ while (0)
+
+/* Write the extra assembler code needed to declare an object properly. */
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+ do \
+ { \
+ fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
+ putc ('\n', FILE); \
+ size_directive_output = 0; \
+ if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
+ { \
+ size_directive_output = 1; \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, \
+ int_size_in_bytes (TREE_TYPE (DECL))); \
+ fputc ('\n', FILE); \
+ } \
+ ASM_OUTPUT_LABEL(FILE, NAME); \
+ } \
+ while (0)
+
+/* Output the size directive for a decl in rest_of_decl_compilation
+ in the case where we did not do so before the initializer.
+ Once we find the error_mark_node, we know that the value of
+ size_directive_output was set
+ by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
+#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)\
+ do \
+ { \
+ char * name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
+ && ! AT_END && TOP_LEVEL \
+ && DECL_INITIAL (DECL) == error_mark_node \
+ && !size_directive_output) \
+ { \
+ size_directive_output = 1; \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, name); \
+ putc (',', FILE); \
+ fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, \
+ int_size_in_bytes (TREE_TYPE (DECL))); \
+ fputc ('\n', FILE); \
+ } \
+ } \
+ while (0)
+
+/* This is how to declare the size of a function. */
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
+ do \
+ { \
+ if (!flag_inhibit_size_directive) \
+ { \
+ char label[256]; \
+ static int labelno; \
+ labelno ++; \
+ ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
+ ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, (FNAME)); \
+ fprintf (FILE, ","); \
+ assemble_name (FILE, label); \
+ fprintf (FILE, "-"); \
+ assemble_name (FILE, (FNAME)); \
+ putc ('\n', FILE); \
+ } \
+ } \
+ while (0)
+
+#endif /* TYPE_ASM_OP */
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