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authorDavid E. O'Brien <obrien@FreeBSD.org>1999-09-19 09:09:21 +0000
committerDavid E. O'Brien <obrien@FreeBSD.org>1999-09-19 09:09:21 +0000
commita49a6042f28e1344f30f8c7c242d7c5614f47270 (patch)
tree95745a77f5edbe2316792c933381d720430f7687 /contrib
parentf23c668cbeaed91de72a296a24837aaf717b2ca2 (diff)
downloadsrc-a49a6042f28e1344f30f8c7c242d7c5614f47270.tar.gz
src-a49a6042f28e1344f30f8c7c242d7c5614f47270.zip
Use the stock EGCS version of this.
Notes
Notes: svn path=/head/; revision=51406
Diffstat (limited to 'contrib')
-rw-r--r--contrib/gcc/config/alpha/elf.h190
1 files changed, 94 insertions, 96 deletions
diff --git a/contrib/gcc/config/alpha/elf.h b/contrib/gcc/config/alpha/elf.h
index 82f04104ec25..a6533e0c1557 100644
--- a/contrib/gcc/config/alpha/elf.h
+++ b/contrib/gcc/config/alpha/elf.h
@@ -1,5 +1,5 @@
/* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF.
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu).
This file is part of GNU CC.
@@ -19,53 +19,51 @@ along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-/* This is used on Alpha platforms that use the ELF format.
-Currently only Linux uses this. */
-
-#if 0
-#include "alpha/linux.h"
-#endif
-
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (Alpha Linux/ELF)");
+/* $FreeBSD$ */
#undef OBJECT_FORMAT_COFF
#undef EXTENDED_COFF
#define OBJECT_FORMAT_ELF
-#define SDB_DEBUGGING_INFO
+#define DBX_DEBUGGING_INFO
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
#undef ASM_FINAL_SPEC
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "\
--D__alpha -D__alpha__ -D__linux__ -D__linux -D_LONGLONG -Dlinux -Dunix \
--Asystem(linux) -Acpu(alpha) -Amachine(alpha) -D__ELF__"
+#undef CC1_SPEC
+#define CC1_SPEC "%{G*}"
+
+#undef ASM_SPEC
+#define ASM_SPEC "%{G*} %{relax:-relax}"
#undef LINK_SPEC
-#define LINK_SPEC "-m elf64alpha -G 8 %{O*:-O3} %{!O*:-O1} \
+#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax} \
+ %{O*:-O3} %{!O*:-O1} \
%{shared:-shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
+ %{!dynamic-linker:-dynamic-linker %(elf_dynamic_linker)}} \
%{static:-static}}"
/* Output at beginning of assembler file. */
-
#undef ASM_FILE_START
#define ASM_FILE_START(FILE) \
{ \
alpha_write_verstamp (FILE); \
output_file_directive (FILE, main_input_filename); \
- fprintf (FILE, "\t.version\t\"01.01\"\n"); \
fprintf (FILE, "\t.set noat\n"); \
+ fprintf (FILE, "\t.set noreorder\n"); \
+ if (TARGET_BWX | TARGET_MAX | TARGET_CIX) \
+ { \
+ fprintf (FILE, "\t.arch %s\n", \
+ (alpha_cpu == PROCESSOR_EV6 ? "ev6" \
+ : TARGET_MAX ? "pca56" : "ev56")); \
+ } \
}
-#define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE) \
- alpha_output_lineno (STREAM, LINE)
-extern void alpha_output_lineno ();
-
extern void output_file_directive ();
/* Attach a special .ident directive to the end of the file to identify
@@ -77,8 +75,8 @@ extern void output_file_directive ();
#ifdef IDENTIFY_WITH_IDENT
#define ASM_IDENTIFY_GCC(FILE) /* nothing */
-#define ASM_IDENTIFY_LANGUAGE(FILE) \
- fprintf(FILE, "\t%s \"GCC (%s) %s\"\n", IDENT_ASM_OP, \
+#define ASM_IDENTIFY_LANGUAGE(FILE) \
+ fprintf(FILE, "\t%s \"GCC (%s) %s\"\n", IDENT_ASM_OP, \
lang_identify(), version_string)
#else
#define ASM_FILE_END(FILE) \
@@ -89,11 +87,9 @@ do { \
#endif
/* Allow #sccs in preprocessor. */
-
#define SCCS_DIRECTIVE
/* Output #ident as a .ident. */
-
#define ASM_OUTPUT_IDENT(FILE, NAME) \
fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
@@ -155,22 +151,46 @@ do { \
the linker seems to want the alignment of data objects
to depend on their types. We do exactly that here. */
-#define LOCAL_ASM_OP ".local"
-
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
- fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
- assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), "\n"); \
- ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
+ if ((SIZE) <= g_switch_value) \
+ sbss_section(); \
+ else \
+ bss_section(); \
+ fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
+ putc ('\n', FILE); \
+ if (!flag_inhibit_size_directive) \
+ { \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ",%d\n", (SIZE)); \
+ } \
+ ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
+ ASM_OUTPUT_LABEL(FILE, NAME); \
+ ASM_OUTPUT_SKIP((FILE), (SIZE)); \
} while (0)
/* This is the pseudo-op used to generate a 64-bit word of data with a
- specific value in some section. */
+ specific value in some section. */
#define INT_ASM_OP ".quad"
+/* Biggest alignment supported by the object file format of this
+ machine. Use this macro to limit the alignment which can be
+ specified using the `__attribute__ ((aligned (N)))' construct. If
+ not defined, the default value is `BIGGEST_ALIGNMENT'.
+
+ This value is really 2^63. Since gcc figures the alignment in bits,
+ we could only potentially get to 2^60 on suitible hosts. Due to other
+ considerations in varasm, we must restrict this to what fits in an int. */
+
+#define MAX_OFILE_ALIGNMENT \
+ (1 << (HOST_BITS_PER_INT < 64 ? HOST_BITS_PER_INT - 2 : 62))
+
/* This is the pseudo-op used to generate a contiguous sequence of byte
values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
@@ -208,6 +228,11 @@ do { \
#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\""
#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\""
+/* Handle the small data sections. */
+#define BSS_SECTION_ASM_OP ".section\t.bss"
+#define SBSS_SECTION_ASM_OP ".section\t.sbss,\"aw\""
+#define SDATA_SECTION_ASM_OP ".section\t.sdata,\"aw\""
+
/* On svr4, we *do* have support for the .init and .fini sections, and we
can put stuff in there to be executed before and after `main'. We let
crtstuff.c and other files know this by defining the following symbols.
@@ -217,17 +242,13 @@ do { \
#define INIT_SECTION_ASM_OP ".section\t.init"
#define FINI_SECTION_ASM_OP ".section\t.fini"
-/* Support non-common, uninitialized data in the .bss section. */
-
-#define BSS_SECTION_ASM_OP ".section\t.bss"
-
/* A default list of other sections which we might be "in" at any given
time. For targets that use additional sections (e.g. .tdesc) you
should override this definition in the target-specific file which
includes this file. */
#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_bss
+#define EXTRA_SECTIONS in_const, in_ctors, in_dtors, in_sbss, in_sdata
/* A default list of extra section function definitions. For targets
that use additional sections (e.g. .tdesc) you should override this
@@ -236,9 +257,10 @@ do { \
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
CONST_SECTION_FUNCTION \
- CTORS_SECTION_FUNCTION \
- DTORS_SECTION_FUNCTION \
- BSS_SECTION_FUNCTION
+ SECTION_FUNCTION_TEMPLATE(ctors_section, in_ctors, CTORS_SECTION_ASM_OP) \
+ SECTION_FUNCTION_TEMPLATE(dtors_section, in_dtors, DTORS_SECTION_ASM_OP) \
+ SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP) \
+ SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP)
#undef READONLY_DATA_SECTION
#define READONLY_DATA_SECTION() const_section ()
@@ -258,36 +280,13 @@ const_section () \
} \
}
-#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; \
- } \
-}
-
-#define BSS_SECTION_FUNCTION \
-void \
-bss_section () \
+#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
+void FN () \
{ \
- if (in_section != in_bss) \
+ if (in_section != ENUM) \
{ \
- fprintf (asm_out_file, "%s\n", BSS_SECTION_ASM_OP); \
- in_section = in_bss; \
+ fprintf (asm_out_file, "%s\n", OP); \
+ in_section = ENUM; \
} \
}
@@ -297,10 +296,10 @@ bss_section () \
We make the section read-only and executable for a function decl,
read-only for a const data decl, and writable for a non-const data decl. */
-#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \
+#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \
(DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
- (DECL) && TREE_READONLY (DECL) ? "a" : "aw")
+ (DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw")
/* A C statement (sans semicolon) to output an element in the table of
@@ -344,11 +343,10 @@ bss_section () \
|| !DECL_INITIAL (DECL) \
|| (DECL_INITIAL (DECL) != error_mark_node \
&& !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
- { \
- if (DECL_COMMON (DECL) \
- && !DECL_INITIAL (DECL)) \
- /* || DECL_INITIAL (DECL) == error_mark_node)) */ \
- bss_section(); \
+ { \
+ int size = int_size_in_bytes (TREE_TYPE (DECL)); \
+ if (size >= 0 && size <= g_switch_value) \
+ sdata_section (); \
else \
data_section (); \
} \
@@ -486,39 +484,39 @@ do { \
escape sequence like \377 would count as four bytes.
If your target assembler doesn't support the .string directive, you
- should define this to zero.
-*/
+ should define this to zero. */
#define STRING_LIMIT ((unsigned) 256)
-
#define STRING_ASM_OP ".string"
-/*
- * We always use gas here, so we don't worry about ECOFF assembler problems.
- */
+/* GAS is the only Alpha/ELF assembler. */
#undef TARGET_GAS
#define TARGET_GAS (1)
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+/* Provide a STARTFILE_SPEC appropriate for ELF. Here we add the
+ (even more) magical crtbegin.o file which provides part of the
+ support for getting C++ file-scope static object constructed before
+ entering `main'.
-/* Provide a STARTFILE_SPEC appropriate for Linux. Here we add
- the Linux magical crtbegin.o file (see crtstuff.c) which
- provides part of the support for getting C++ file-scope static
- object constructed before entering `main'. */
+ Don't bother seeing crtstuff.c -- there is absolutely no hope of
+ getting that file to understand multiple GPs. GNU Libc provides a
+ hand-coded version that is used on Linux; it could be copied here
+ if there is ever a need. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: \
%{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
- crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+ crti.o%s crtbegin.o%s"
-/* Provide a ENDFILE_SPEC appropriate for Linux. Here we tack on
- the Linux magical crtend.o file (see crtstuff.c) which
- provides part of the support for getting C++ file-scope static
- object constructed before entering `main', followed by a normal
- Linux "finalizer" file, `crtn.o'. */
+/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
+ magical crtend.o file which provides part of the support for
+ getting C++ file-scope static object constructed before entering
+ `main', followed by a normal ELF "finalizer" file, `crtn.o'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+ "crtend.o%s crtn.o%s"
+
+/* We support #pragma. */
+#define HANDLE_SYSV_PRAGMA