-/* Definitions of target machine for GNU compiler,
- for ARM with COFF obj format.
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
- Contributed by Doug Evans (dje@cygnus.com).
+/* Definitions of target machine for GNU compiler.
+ For ARM with COFF object format.
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
+ Contributed by Doug Evans (devans@cygnus.com).
This file is part of GNU CC.
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#include "arm/semi.h"
+#include "semi.h"
+#include "aout.h"
+
+/* Note - it is important that this definition matches the one in tcoff.h */
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX "_"
+
\f
/* Run-time Target Specification. */
-#undef TARGET_VERSION
+#undef TARGET_VERSION
#define TARGET_VERSION fputs (" (ARM/coff)", stderr)
-/* ??? Maybe use --with{enable?}-fpu or some such to make hardware floating
- point the default. NOT --nfp! --with{enable?} is supposed to replace it
- (right?), so let's stop using it. */
-#undef TARGET_DEFAULT
-#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT /*+ TARGET_CPU_DEFAULT*/)
-
-/* ??? Is a big-endian default intended to be supported? */
-#if 0 /*TARGET_CPU_DEFAULT & ARM_FLAG_BIG_END*/
-#define MULTILIB_DEFAULTS { "mbe", "mbig-endian" }
-#else
-#define MULTILIB_DEFAULTS { "mle", "mlittle-endian" }
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME)
+
+#ifndef MULTILIB_DEFAULTS
+#define MULTILIB_DEFAULTS \
+ { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }
#endif
\f
-/* ??? Does arm.h really need to set this to 32? */
-#undef STRUCTURE_SIZE_BOUNDARY
-#define STRUCTURE_SIZE_BOUNDARY 8
-\f
/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
is a valid machine specific attribute for DECL.
The attributes in ATTRIBUTES have previously been assigned to DECL. */
-extern int arm_valid_machine_decl_attribute ();
#define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
-arm_valid_machine_decl_attribute (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
+ arm_valid_machine_decl_attribute (DECL, IDENTIFIER, ARGS)
\f
/* This is COFF, but prefer stabs. */
#define SDB_DEBUGGING_INFO
#include "dbxcoff.h"
\f
-#undef LOCAL_LABEL_PREFIX
-#define LOCAL_LABEL_PREFIX "."
-
/* A C statement to output assembler commands which will identify the
object file as having been compiled with GNU CC (or another GNU
compiler). */
Also, when using stabs, gcc2_compiled must be a stabs entry, not an
ordinary symbol, or gdb won't see it. The stabs entry must be
before the N_SO in order for gdb to find it. */
-#define ASM_IDENTIFY_GCC(STREAM)
+#define ASM_IDENTIFY_GCC(STREAM) \
+ fprintf (STREAM, "%sgcc2_compiled.:\n", LOCAL_LABEL_PREFIX )
/* This outputs a lot of .req's to define alias for various registers.
Let's try to avoid this. */
#undef ASM_FILE_START
-#define ASM_FILE_START(STREAM) \
-do { \
- extern char *version_string; \
- fprintf (STREAM, "%s Generated by gcc %s for ARM/coff\n", \
- ASM_COMMENT_START, version_string); \
-} while (0)
-
-/* A C statement to output something to the assembler file to switch to section
- NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
+#define ASM_FILE_START(STREAM) \
+ do \
+ { \
+ fprintf (STREAM, "%s Generated by gcc %s for ARM/coff\n", \
+ ASM_COMMENT_START, version_string); \
+ fprintf (STREAM, ASM_APP_OFF); \
+ } \
+ while (0)
+
+/* A C statement to output something to the assembler file to switch to
+ section NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
NULL_TREE. Some target formats do not support arbitrary sections. Do not
define this macro in such cases. */
-#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME) \
-do { \
- if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
- fprintf (STREAM, "\t.section %s,\"x\"\n", (NAME)); \
- else if ((DECL) && TREE_READONLY (DECL)) \
- fprintf (STREAM, "\t.section %s,\"\"\n", (NAME)); \
- else \
- fprintf (STREAM, "\t.section %s,\"w\"\n", (NAME)); \
-} while (0)
+#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC) \
+ do \
+ { \
+ if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
+ fprintf (STREAM, "\t.section %s,\"x\"\n", (NAME)); \
+ else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
+ fprintf (STREAM, "\t.section %s,\"\"\n", (NAME)); \
+ else \
+ fprintf (STREAM, "\t.section %s,\"w\"\n", (NAME)); \
+ } \
+ while (0)
\f
/* Support the ctors/dtors and other sections. */
/* Define this macro if jump tables (for `tablejump' insns) should be
output in the text section, along with the assembler instructions.
Otherwise, the readonly data section is used. */
-#define JUMP_TABLES_IN_TEXT_SECTION
+#define JUMP_TABLES_IN_TEXT_SECTION 1
-#undef READONLY_DATA_SECTION
+#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION rdata_section
-#undef RDATA_SECTION_ASM_OP
+#undef RDATA_SECTION_ASM_OP
#define RDATA_SECTION_ASM_OP "\t.section .rdata"
-
-#undef CTORS_SECTION_ASM_OP
+#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP "\t.section .ctors,\"x\""
-#undef DTORS_SECTION_ASM_OP
+#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP "\t.section .dtors,\"x\""
/* A list of other sections which the compiler might be "in" at any
#define SUBTARGET_EXTRA_SECTION_FUNCTIONS
#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 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++. */
-#define INT_ASM_OP ".word"
+#define INT_ASM_OP "\t.word\t"
/* A C statement (sans semicolon) to output an element in the table of
global constructors. */
#undef ASM_OUTPUT_CONSTRUCTOR
-#define ASM_OUTPUT_CONSTRUCTOR(STREAM,NAME) \
-do { \
- ctors_section (); \
- fprintf (STREAM, "\t%s\t ", INT_ASM_OP); \
- assemble_name (STREAM, NAME); \
- fprintf (STREAM, "\n"); \
-} while (0)
+#define ASM_OUTPUT_CONSTRUCTOR(STREAM, NAME) \
+ do \
+ { \
+ ctors_section (); \
+ fprintf (STREAM, "%s", INT_ASM_OP); \
+ assemble_name (STREAM, NAME); \
+ fprintf (STREAM, "\n"); \
+ } \
+ while (0)
/* A C statement (sans semicolon) to output an element in the table of
global destructors. */
#undef ASM_OUTPUT_DESTRUCTOR
-#define ASM_OUTPUT_DESTRUCTOR(STREAM,NAME) \
-do { \
- dtors_section (); \
- fprintf (STREAM, "\t%s\t ", INT_ASM_OP); \
- assemble_name (STREAM, NAME); \
- fprintf (STREAM, "\n"); \
-} while (0)
+#define ASM_OUTPUT_DESTRUCTOR(STREAM, NAME) \
+ do \
+ { \
+ dtors_section (); \
+ fprintf (STREAM, "%s", INT_ASM_OP); \
+ assemble_name (STREAM, NAME); \
+ fprintf (STREAM, "\n"); \
+ } \
+ while (0)
/* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script. */
#define CTOR_LISTS_DEFINED_EXTERNALLY
#undef DO_GLOBAL_CTORS_BODY
#undef DO_GLOBAL_DTORS_BODY
-/* The ARM development system has atexit and doesn't have _exit,
- so define this for now. */
+/* If you don't define HAVE_ATEXIT, and the object file format/OS/whatever
+ does not support constructors/destructors, then gcc implements destructors
+ by defining its own exit function, which calls the destructors. This gcc
+ exit function overrides the C library's exit function, and this can cause
+ all kinds of havoc if the C library has a non-trivial exit function. You
+ really don't want to use the exit function in libgcc2.c. */
#define HAVE_ATEXIT
/* The ARM development system defines __main. */
-#define NAME__MAIN "__gccmain"
+#define NAME__MAIN "__gccmain"
#define SYMBOL__MAIN __gccmain
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