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patches for arm-linux
- To: egcs-patches at cygnus dot com
- Subject: patches for arm-linux
- From: Philip Blundell <pb at nexus dot co dot uk>
- Date: Tue, 20 Oct 1998 16:37:19 +0200
This is a collection of patches I've accumulated over the past few months to
add support for arm-linux configurations (using ELF binaries) to egcs. The
patch is against the code in CVS yesterday; it should apply to any
reasonably recent version.
There are also some changes for PIC code generation that go along with these
but I'll send them separately.
Could the ARM people please take a look. Thanks.
p.
1998-10-20 Philip Blundell <pb@nexus.co.uk>
* config/arm/linux-elf.h: Make -mshort-load-bytes the default.
* config/arm/linux-elf26.h: Likewise.
* config/arm/linux-gas.h: Define `inhibit_libc' if
cross-compiling.
Sun Oct 4 12:39:07 1998 Philip Blundell <philb@gnu.org>
* config/arm/elf.h (LOCAL_LABEL_PREFIX): Set to ".".
* configure.in: Recognise "armv2-*-linux" and use 26-bit mode as
the default.
* config/arm/linux-elf26.h: New file.
* config/arm/linux-elf.h (LINK_SPEC): Add more flags.
(ASM_SPEC): New macro.
(TARGET_DEFAULT): Don't default to 32-bit mode if requested
otherwise.
(CPP_APCS_PC_DEFAULT_SPEC): Change to APCS-32 if appropriate.
* config/arm/linux-gas.h (CLEAR_INSN_CACHE): New macro, currently
disabled (awaiting kernel support).
Sat Aug 29 18:25:33 1998 Philip Blundell <philb@gnu.org>
* config/arm/linux-elf.h (TARGET_DEFAULT): Make 32-bit code the
default.
* config/arm/lib1funcs.asm: PLT jumps are conditional on __elf__,
not PIC.
[L_dvmd_lnx] (__div0): Correct check for errors.
* config/arm/linux-elf.h (LINK_SPEC): Dynamic linker lives in
/lib, not /lib/elf. Add support for -rdynamic option.
Wed Aug 19 11:24:15 1998 Philip Blundell <pb@nexus.co.uk>
* config/arm/linux-aout.h (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
WCHAR_TYPE_SIZE): Move definitions to linux-gas.h.
Sat Aug 15 22:54:14 1998 Philip Blundell <philb@gnu.org>
* config/arm/elf.h (ASM_OUTPUT_ADDR_DIFF_ELT): New argument BODY.
* configure.in: For all ARM targets, match on the pattern
`arm*-*-..' rather than just `arm-*-...'. Remove support for old
and outdated `arm-*-linuxelf' configuration name.
Fri Jun 5 18:47:09 1998 Philip Blundell <philb@gnu.org>
* configure.in: Add support for ELF on ARM systems.
* config/arm/elf.h: New file. Generic ARM/ELF support.
* config/arm/linux.h: Rename to ...
* config/arm/linux-aout.h: ... this, and move some definitions to...
* config/arm/linux-gas.h: ... here. Add support for weak symbols.
* config/arm/linux-elf.h: New file. Support for Linux with ELF.
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/elf.h egcs-981019/gcc/config/arm/elf.h
--- clean/egcs-981019/gcc/config/arm/elf.h Thu Jan 1 01:00:00 1970
+++ egcs-981019/gcc/config/arm/elf.h Tue Oct 20 15:36:25 1998
@@ -0,0 +1,546 @@
+/* Definitions of target machine for GNU compiler, for ARM with ELF
+ Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+ Contributed by Philip Blundell <philb@gnu.org>
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+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. */
+
+#ifndef ARM_OS_NAME
+#define ARM_OS_NAME "(generic)"
+#endif
+
+/* The text to go at the start of the assembler file */
+#define ASM_FILE_START(STREAM) \
+{ \
+ fprintf (STREAM,"%srfp\t.req\t%sr9\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%ssl\t.req\t%sr10\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%sfp\t.req\t%sr11\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%sip\t.req\t%sr12\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%ssp\t.req\t%sr13\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%slr\t.req\t%sr14\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+ fprintf (STREAM,"%spc\t.req\t%sr15\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+}
+
+#define ASM_APP_ON ""
+#define ASM_APP_OFF ""
+
+/* Switch to the text or data segment. */
+#define TEXT_SECTION_ASM_OP ".text"
+#define DATA_SECTION_ASM_OP ".data"
+#define BSS_SECTION_ASM_OP ".bss"
+
+#define REGISTER_PREFIX ""
+#define USER_LABEL_PREFIX "" /* For ELF the default is no underscores */
+#define LOCAL_LABEL_PREFIX "."
+
+/* The assembler's names for the registers. */
+#ifndef REGISTER_NAMES
+#define REGISTER_NAMES \
+{ \
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+ "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc", \
+ "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
+ "cc", "sfp", "afp" \
+}
+#endif
+
+#ifndef ADDITIONAL_REGISTER_NAMES
+#define ADDITIONAL_REGISTER_NAMES \
+{ \
+ {"a1", 0}, \
+ {"a2", 1}, \
+ {"a3", 2}, \
+ {"a4", 3}, \
+ {"v1", 4}, \
+ {"v2", 5}, \
+ {"v3", 6}, \
+ {"v4", 7}, \
+ {"v5", 8}, \
+ {"v6", 9}, \
+ {"rfp", 9}, /* Gcc used to call it this */ \
+ {"sb", 9}, \
+ {"v7", 10}, \
+ {"r10", 10}, /* sl */ \
+ {"r11", 11}, /* fp */ \
+ {"r12", 12}, /* ip */ \
+ {"r13", 13}, /* sp */ \
+ {"r14", 14}, /* lr */ \
+ {"r15", 15} /* pc */ \
+}
+#endif
+
+/* DBX register number for a given compiler register number */
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+/* Generate DBX debugging information. */
+#define DBX_DEBUGGING_INFO 1
+
+/* Output a source filename for the debugger. RISCiX dbx insists that the
+ ``desc'' field is set to compiler version number >= 315 (sic). */
+#define DBX_OUTPUT_MAIN_SOURCE_FILENAME(STREAM,NAME) \
+do { \
+ fprintf (STREAM, ".stabs \"%s\",%d,0,315,%s\n", (NAME), N_SO, \
+ <ext_label_name[1]); \
+ text_section (); \
+ ASM_OUTPUT_INTERNAL_LABEL (STREAM, "Ltext", 0); \
+} while (0)
+
+/* Attach a special .ident directive to the end of the file to identify
+ the version of GCC which compiled this code. */
+
+#define IDENT_ASM_OP ".ident"
+
+#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, \
+ lang_identify(), version_string)
+#else
+#define ASM_FILE_END(FILE) \
+do { \
+ fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
+ IDENT_ASM_OP, version_string); \
+ } while (0)
+#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);
+
+/* imported from i386/freebsd.h patb 10/2/98 */
+/* 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. */
+
+/* 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. */
+
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+ do { \
+ fprintf (FILE, "\t.type\t"); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ",%%function\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.type\t"); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ",%%object\n"); \
+ size_directive_output = 0; \
+ if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
+ { \
+ size_directive_output = 1; \
+ fprintf (FILE, "\t.size\t"); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
+ } \
+ 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) \
+ { \
+ fprintf (FILE, "\t.size\t"); \
+ assemble_name (FILE, name); \
+ fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL)));\
+ } \
+ } 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.size\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)
+
+
+#define ASM_OUTPUT_LABEL(STREAM,NAME) \
+do { \
+ assemble_name (STREAM,NAME); \
+ fputs (":\n", STREAM); \
+} while (0)
+
+/* Output a globalising directive for a label. */
+#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \
+ (fprintf (STREAM, "\t.global\t"), \
+ assemble_name (STREAM, NAME), \
+ fputc ('\n',STREAM)) \
+
+/* Make an internal label into a string. */
+#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
+ sprintf (STRING, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM)
+
+/* Nothing special is done about jump tables */
+/* #define ASM_OUTPUT_CASE_LABEL(STREAM,PREFIX,NUM,TABLE) */
+/* #define ASM_OUTPUT_CASE_END(STREAM,NUM,TABLE) */
+#define JUMP_TABLES_IN_TEXT_SECTION 1
+
+/* Construct a private name. */
+#define ASM_FORMAT_PRIVATE_NAME(OUTVAR,NAME,NUMBER) \
+ ((OUTVAR) = (char *) alloca (strlen (NAME) + 10), \
+ sprintf ((OUTVAR), "%s.%d", (NAME), (NUMBER)))
+
+/* Output an element of a dispatch table. */
+#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM,VALUE) \
+ fprintf (STREAM, "\t.word\t%sL%d\n", LOCAL_LABEL_PREFIX, VALUE)
+
+#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM,BODY,VALUE,REL) \
+ fprintf (STREAM, "\tb\t%sL%d\n", LOCAL_LABEL_PREFIX, (VALUE))
+
+/* Output various types of constants. For real numbers we output hex, with
+ a comment containing the "human" value, this allows us to pass NaN's which
+ the riscix assembler doesn't understand (it also makes cross-assembling
+ less likely to fail). */
+
+#define ASM_OUTPUT_LONG_DOUBLE(STREAM,VALUE) \
+do { char dstr[30]; \
+ long l[3]; \
+ REAL_VALUE_TO_TARGET_LONG_DOUBLE (VALUE, l); \
+ REAL_VALUE_TO_DECIMAL (VALUE, "%.20g", dstr); \
+ fprintf (STREAM, "\t.long 0x%lx,0x%lx,0x%lx\t%s long double %s\n", \
+ l[0], l[1], l[2], ASM_COMMENT_START, dstr); \
+ } while (0)
+
+
+#define ASM_OUTPUT_DOUBLE(STREAM, VALUE) \
+do { char dstr[30]; \
+ long l[2]; \
+ REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \
+ REAL_VALUE_TO_DECIMAL (VALUE, "%.14g", dstr); \
+ fprintf (STREAM, "\t.long 0x%lx, 0x%lx\t%s double %s\n", l[0], \
+ l[1], ASM_COMMENT_START, dstr); \
+ } while (0)
+
+#define ASM_OUTPUT_FLOAT(STREAM, VALUE) \
+do { char dstr[30]; \
+ long l; \
+ REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \
+ REAL_VALUE_TO_DECIMAL (VALUE, "%.7g", dstr); \
+ fprintf (STREAM, "\t.word 0x%lx\t%s float %s\n", l, \
+ ASM_COMMENT_START, dstr); \
+ } while (0);
+
+#define ASM_OUTPUT_INT(STREAM, EXP) \
+ { \
+ fprintf (STREAM, "\t.word\t"); \
+ OUTPUT_INT_ADDR_CONST (STREAM, (EXP)); \
+ fprintf (STREAM, "\n"); \
+ }
+
+#define ASM_OUTPUT_SHORT(STREAM, EXP) \
+ (fprintf (STREAM, "\t.short\t"), \
+ output_addr_const (STREAM, (EXP)), \
+ fputc ('\n', STREAM))
+
+#define ASM_OUTPUT_CHAR(STREAM, EXP) \
+ (fprintf (STREAM, "\t.byte\t"), \
+ output_addr_const (STREAM, (EXP)), \
+ fputc ('\n', STREAM))
+
+#define ASM_OUTPUT_BYTE(STREAM, VALUE) \
+ fprintf (STREAM, "\t.byte\t%d\n", VALUE)
+
+#define ASM_OUTPUT_ASCII(STREAM, PTR, LEN) \
+ output_ascii_pseudo_op ((STREAM), (unsigned char *)(PTR), (LEN))
+
+/* Output a gap. In fact we fill it with nulls. */
+#define ASM_OUTPUT_SKIP(STREAM, NBYTES) \
+ fprintf (STREAM, "\t.space\t%d\n", NBYTES)
+
+/* Align output to a power of two. Horrible /bin/as. */
+#define ASM_OUTPUT_ALIGN(STREAM, POWER) \
+ do \
+ { \
+ register int amount = 1 << (POWER); \
+ \
+ if (amount == 2) \
+ fprintf (STREAM, "\t.even\n"); \
+ else if (amount != 1) \
+ fprintf (STREAM, "\t.align\t%d\n", amount - 4); \
+ } while (0)
+
+/* Output a common block */
+#define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
+ (fprintf (STREAM, "\t.comm\t"), \
+ assemble_name ((STREAM), (NAME)), \
+ fprintf(STREAM, ", %d\t%s %d\n", ROUNDED, ASM_COMMENT_START, SIZE))
+
+/* Output a local common block. /bin/as can't do this, so hack a
+ `.space' into the bss segment. Note that this is *bad* practice. */
+#define ASM_OUTPUT_ALIGNED_LOCAL(STREAM,NAME,SIZE,ALIGN) \
+ do { \
+ bss_section (); \
+ ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
+ ASM_OUTPUT_LABEL (STREAM, NAME); \
+ fprintf (STREAM, "\t.space\t%d\n", SIZE); \
+ } while (0)
+
+/* Output a zero-initialized block. */
+#define ASM_OUTPUT_ALIGNED_BSS(STREAM,DECL,NAME,SIZE,ALIGN) \
+ asm_output_aligned_bss(STREAM, DECL, NAME, SIZE, ALIGN)
+
+/* Output a source line for the debugger. */
+/* #define ASM_OUTPUT_SOURCE_LINE(STREAM,LINE) */
+
+/* The assembler's parentheses characters. */
+#define ASM_OPEN_PAREN "("
+#define ASM_CLOSE_PAREN ")"
+
+#ifndef ASM_COMMENT_START
+#define ASM_COMMENT_START "@"
+#endif
+
+/* This works for GAS and some other assemblers. */
+#define SET_ASM_OP ".set"
+
+/* 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. */
+
+#define USE_CONST_SECTION 1
+
+#define CONST_SECTION_ASM_OP ".section\t.rodata"
+
+/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
+
+ Note that we want to give these sections the SHF_WRITE attribute
+ because these sections will actually contain data (i.e. tables of
+ addresses of functions in the current root executable or shared library
+ file) and, in the case of a shared library, the relocatable addresses
+ will have to be properly resolved/relocated (and then written into) by
+ the dynamic linker when it actually attaches the given shared library
+ to the executing process. (Note that on SVR4, you may wish to use the
+ `-z text' option to the ELF linker, when building a shared library, as
+ an additional check that you are doing everything right. But if you do
+ use the `-z text' option when building a shared library, you will get
+ errors unless the .ctors and .dtors sections are marked as writable
+ via the SHF_WRITE attribute.) */
+
+#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\""
+#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"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.
+ The definitions say how to change sections to the .init and .fini
+ sections. This is the same for all known svr4 assemblers. */
+
+#define INIT_SECTION_ASM_OP ".section\t.init"
+#define FINI_SECTION_ASM_OP ".section\t.fini"
+
+/* 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
+
+/* A default list of extra section function definitions. 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_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+ CONST_SECTION_FUNCTION \
+ CTORS_SECTION_FUNCTION \
+ DTORS_SECTION_FUNCTION
+
+#undef READONLY_DATA_SECTION
+#define READONLY_DATA_SECTION() const_section ()
+
+extern void text_section ();
+
+#define CONST_SECTION_FUNCTION \
+void \
+const_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; \
+ } \
+}
+
+#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; \
+ } \
+}
+
+/* Switch into a generic section.
+ This is currently only used to support section attributes.
+
+ 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, RELOC) \
+ fprintf (FILE, ".section\t%s,\"%s\",%%progbits\n", NAME, \
+ (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
+ (DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw")
+
+
+#define INT_ASM_OP ".word"
+
+/* A C statement (sans semicolon) to output an element in the table of
+ global constructors. */
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
+ do { \
+ ctors_section (); \
+ fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } while (0)
+
+/* A C statement (sans semicolon) to output an element in the table of
+ global destructors. */
+#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
+ do { \
+ dtors_section (); \
+ fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
+ 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 ((flag_pic && RELOC) \
+ || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
+ || !DECL_INITIAL (DECL) \
+ || (DECL_INITIAL (DECL) != error_mark_node \
+ && !TREE_CONSTANT (DECL_INITIAL (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. */
+
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE,RTX) const_section()
+
+/* Define the strings used for the special svr4 .type and .size directives.
+ These strings generally do not vary from one system running svr4 to
+ another, but if a given system (e.g. m88k running svr) needs to use
+ different pseudo-op names for these, they may be overridden in the
+ file which includes this one. */
+
+#define TYPE_ASM_OP ".type"
+#define SIZE_ASM_OP ".size"
+
+/* This is how we tell the assembler that a symbol is weak. */
+
+#define ASM_WEAKEN_LABEL(FILE,NAME) \
+ do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
+ fputc ('\n', FILE); } while (0)
+
+/* This is how we tell the assembler that two symbols have the same value. */
+
+#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
+ do { assemble_name(FILE, NAME1); \
+ fputs(" = ", FILE); \
+ assemble_name(FILE, NAME2); \
+ fputc('\n', FILE); } while (0)
+
+/* 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"
+
+#include "arm/arm.h"
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/lib1funcs.asm egcs-981019/gcc/config/arm/lib1funcs.asm
--- clean/egcs-981019/gcc/config/arm/lib1funcs.asm Mon Oct 19 05:38:57 1998
+++ egcs-981019/gcc/config/arm/lib1funcs.asm Tue Oct 20 15:36:25 1998
@@ -43,6 +43,12 @@
#define RETCOND
#endif
+#ifdef __elf__
+#define __PLT__ (PLT)
+#else
+#define __PLT__
+#endif
+
#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__ _
#endif
@@ -66,9 +72,11 @@
sp .req r13
lr .req r14
pc .req r15
+
.text
- .globl SYM (__udivsi3)
- .align 0
+ .globl SYM(__udivsi3)
+ .type SYM(__udivsi3),%function
+ .align 0
SYM (__udivsi3):
cmp divisor, #0
@@ -124,10 +132,12 @@
Ldiv0:
str lr, [sp, #-4]!
- bl SYM (__div0)
+ bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
+ .size SYM(__udivsi3), . - SYM(__udivsi3)
+
#endif /* L_udivsi3 */
#ifdef L_umodsi3
@@ -142,6 +152,7 @@
pc .req r15
.text
.globl SYM (__umodsi3)
+ .type SYM (__umodsi3),%function
.align 0
SYM (__umodsi3):
@@ -210,10 +221,12 @@
Ldiv0:
str lr, [sp, #-4]!
- bl SYM (__div0)
+ bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
+ .size SYM(__umodsi3), . - SYM(__umodsi3)
+
#endif /* L_umodsi3 */
#ifdef L_divsi3
@@ -228,6 +241,7 @@
pc .req r15
.text
.globl SYM (__divsi3)
+ .type SYM (__divsi3),%function
.align 0
SYM (__divsi3):
@@ -291,10 +305,12 @@
Ldiv0:
str lr, [sp, #-4]!
- bl SYM (__div0)
+ bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
+ .size SYM(__divsi3), . - SYM(__divsi3)
+
#endif /* L_divsi3 */
#ifdef L_modsi3
@@ -309,6 +325,7 @@
pc .req r15
.text
.globl SYM (__modsi3)
+ .type SYM (__modsi3),%function
.align 0
SYM (__modsi3):
@@ -388,18 +405,22 @@
Ldiv0:
str lr, [sp, #-4]!
- bl SYM (__div0)
+ bl SYM (__div0) __PLT__
mov r0, #0 @ about as wrong as it could be
ldmia sp!, {pc}RETCOND
+ .size SYM(__modsi3), . - SYM(__modsi3)
+
#endif /* L_modsi3 */
#ifdef L_dvmd_tls
.globl SYM (__div0)
+ .type SYM(__div0),%function
.align 0
SYM (__div0):
RET pc, lr
+ .size SYM(__div0), . - SYM(__div0)
#endif /* L_divmodsi_tools */
@@ -407,18 +428,20 @@
@ GNU/Linux division-by zero handler. Used in place of L_dvmd_tls
#include <asm/unistd.h>
-#define SIGFPE 8 @ cant use <asm/signal.h> as it
- @ contains too much C rubbish
+#define SIGFPE 8
+
.globl SYM (__div0)
+ .type SYM(__div0),%function
.align 0
SYM (__div0):
stmfd sp!, {r1, lr}
swi __NR_getpid
cmn r0, #1000
- ldmgefd sp!, {r1, pc}RETCOND @ not much we can do
+ ldmhsfd sp!, {r1, pc}RETCOND @ not much we can do
mov r1, #SIGFPE
swi __NR_kill
ldmfd sp!, {r1, pc}RETCOND
+ .size SYM(__div0), . - SYM(__div0)
#endif /* L_dvmd_lnx */
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/linux-aout.h egcs-981019/gcc/config/arm/linux-aout.h
--- clean/egcs-981019/gcc/config/arm/linux-aout.h Thu Jan 1 01:00:00 1970
+++ egcs-981019/gcc/config/arm/linux-aout.h Tue Oct 20 15:36:25 1998
@@ -0,0 +1,58 @@
+/* Definitions for ARM running Linux-based GNU systems using a.out.
+ Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
+ Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <linux-aout.h>
+
+/* these are different... */
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC \
+"%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
+
+#undef ASM_APP_ON
+#undef ASM_APP_OFF
+#undef COMMENT_BEGIN
+
+/* We default to ARM3. */
+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm3
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES \
+"-Dunix -Darm -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(arm) -Amachine(arm)"
+
+#undef LIB_SPEC
+#define LIB_SPEC \
+ "%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
+
+#define HANDLE_SYSV_PRAGMA
+
+/* Run-time Target Specification. */
+#define TARGET_VERSION fputs (" (ARM GNU/Linux with a.out)", stderr);
+
+/*
+ * Maths operation domain error number, EDOM
+ * We don't really want this for libc6. However, taking it out would be
+ * too much of a pain for now and it doesn't hurt much.
+ */
+#define TARGET_EDOM 33
+
+#include "arm/aout.h"
+
+#include "arm/linux-gas.h"
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/linux-elf.h egcs-981019/gcc/config/arm/linux-elf.h
--- clean/egcs-981019/gcc/config/arm/linux-elf.h Thu Jan 1 01:00:00 1970
+++ egcs-981019/gcc/config/arm/linux-elf.h Tue Oct 20 15:53:13 1998
@@ -0,0 +1,79 @@
+/* Definitions for ARM running Linux-based GNU systems using ELF
+ Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc.
+ Contributed by Philip Blundell <philb@gnu.org>
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Run-time Target Specification. */
+#define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
+
+/* we have libgcc2 */
+#define HAVE_ATEXIT
+
+/* Default is to use APCS-32 mode. */
+#ifndef SUBTARGET_DEFAULT_APCS26
+#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_SHORT_BYTE)
+#define SUBTARGET_EXTRA_LINK_SPEC \
+ " %{mapcs-26:-m elf32arm26} %{!mapcs-26:-m elf32arm}"
+#define SUBTARGET_EXTRA_ASM_SPEC \
+ " %{mapcs-26:-mapcs-26} %(!mapcs-26:-mapcs-32}"
+#endif
+
+/* Now we define the strings used to build the spec file */
+
+#define ASM_SPEC "%{mbig-endian:-EB} "
+/* we don't need an ASM_FINAL_SPEC */
+
+#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
+
+/* add the compiler's crtend, and the library's crtn */
+#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
+ %{pg:gcrtn.o%s}%{!pg:crtn.o%s}"
+
+#define STARTFILE_SPEC "%{!shared:crt1.o%s} \
+ crti.o%s \
+ %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+
+#define LINK_SPEC "%{h*} %{version:-v} \
+ %{b} %{Wl,*:%*} \
+ %{static:-Bstatic} \
+ %{shared:-shared} \
+ %{symbolic:-Bsymbolic} \
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
+ -X \
+ %{mbig-endian:-EB}" \
+ SUBTARGET_EXTRA_LINK_SPEC
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES \
+"-Dunix -Darm -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(arm) \
+-Amachine(arm) -D__ELF__"
+
+#include "arm/elf.h" /* macros to issue to the assembler */
+
+#include "arm/linux-gas.h"
+
+#ifndef SUBTARGET_DEFAULT_APCS26
+#undef CPP_APCS_PC_DEFAULT_SPEC
+#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
+#endif
+
+#ifndef OBJECT_FORMAT_ELF
+#define OBJECT_FORMAT_ELF
+#endif
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/linux-elf26.h egcs-981019/gcc/config/arm/linux-elf26.h
--- clean/egcs-981019/gcc/config/arm/linux-elf26.h Thu Jan 1 01:00:00 1970
+++ egcs-981019/gcc/config/arm/linux-elf26.h Tue Oct 20 15:53:44 1998
@@ -0,0 +1,32 @@
+/* Definitions for 26-bit ARM running Linux-based GNU systems using ELF
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ Contributed by Philip Blundell <philb@gnu.org>
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#define SUBTARGET_DEFAULT_APCS26
+
+#define SUBTARGET_LINK_SPEC \
+ " %{mapcs-32:-m elf32arm} %{!mapcs-32:-m elf32arm26}"
+
+#define SUBTARGET_EXTRA_ASM_SPEC \
+ " %{mapcs-32:-mapcs-32} %(!mapcs-32:-mapcs-26}"
+
+#define TARGET_DEFAULT (ARM_FLAG_SHORT_BYTE)
+
+#include "arm/linux-elf.h"
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/linux-gas.h egcs-981019/gcc/config/arm/linux-gas.h
--- clean/egcs-981019/gcc/config/arm/linux-gas.h Mon Oct 19 05:38:57 1998
+++ egcs-981019/gcc/config/arm/linux-gas.h Tue Oct 20 15:51:02 1998
@@ -1,7 +1,8 @@
/* Definitions of target machine for GNU compiler. ARM Linux-based GNU
systems version.
- Copyright (C) 1997 Free Software Foundation, Inc.
- Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
+ Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+ Contributed by Russell King <rmk92@ecs.soton.ac.uk>
+ and Philip Blundell <philb@gnu.org>
This file is part of GNU CC.
@@ -20,15 +21,66 @@
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-/* Limit the length of a stabs entry (for the broken Acorn assembler) */
-#define DBX_CONTIN_LENGTH 80
-
-#include "arm/linux.h"
-
/*
* We are using GAS, so stabs should work.
*/
#ifndef DBX_DEBUGGING_INFO
#define DBX_DEBUGGING_INFO 1
+#endif
+
+/*
+ * This is how we tell the assembler that a symbol is weak. GAS always
+ * supports weak symbols.
+ */
+
+#define ASM_WEAKEN_LABEL(FILE,NAME) \
+ do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
+ fputc ('\n', FILE); } while (0)
+
+/* This is used in ASM_FILE_START */
+#undef ARM_OS_NAME
+#define ARM_OS_NAME "Linux"
+
+/* Unsigned chars produces much better code than signed. */
+#define DEFAULT_SIGNED_CHAR 0
+
+#undef SUBTARGET_CPP_SPEC
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}"
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "long int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#if 0 /* not yet */
+
+/* Clear the instruction cache from `beg' to `end'. This makes an
+ inline system call to SYS_cacheflush. The arguments are as
+ follows:
+
+ cacheflush (start, end, flags)
+
+*/
+
+#define CLEAR_INSN_CACHE(BEG, END) \
+{ \
+ register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
+ register unsigned long _end __asm ("a2") = (unsigned long) (END); \
+ register unsigned long _flg __asm ("a3") = 0; \
+ __asm __volatile ("swi 0x9000b8"); \
+}
+
+#endif
+
+/* If cross-compiling, don't require stdio.h etc to build libgcc.a. */
+#ifdef CROSS_COMPILE
+#define inhibit_libc
#endif
diff -u --recursive --new-file clean/egcs-981019/gcc/config/arm/linux.h egcs-981019/gcc/config/arm/linux.h
--- clean/egcs-981019/gcc/config/arm/linux.h Mon Oct 19 05:38:57 1998
+++ egcs-981019/gcc/config/arm/linux.h Thu Jan 1 01:00:00 1970
@@ -1,72 +0,0 @@
-/* Definitions for ARM running Linux-based GNU systems.
- Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
- Contributed by Russell King <rmk92@ecs.soton.ac.uk>.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <linux-aout.h>
-
-/* these are different... */
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC \
-"%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
-
-#undef ASM_APP_ON
-#undef ASM_APP_OFF
-#undef COMMENT_BEGIN
-
-/* We default to ARM3. */
-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm3
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES \
-"-Dunix -Darm -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(arm) -Amachine(arm)"
-
-#undef LIB_SPEC
-#define LIB_SPEC \
- "%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
-
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
-
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
-
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
-
-#define HANDLE_SYSV_PRAGMA
-
-/* Run-time Target Specification. */
-#define TARGET_VERSION fputs (" (ARM GNU/Linux with a.out)", stderr);
-
-/* This is used in ASM_FILE_START */
-#define ARM_OS_NAME "Linux"
-
-/* Unsigned chars produces much better code than signed. */
-#define DEFAULT_SIGNED_CHAR 0
-
-/* Maths operation domain error number, EDOM */
-#define TARGET_EDOM 33
-#include "arm/aout.h"
-
-#undef SUBTARGET_CPP_SPEC
-#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
diff -u --recursive --new-file clean/egcs-981019/gcc/configure.in egcs-981019/gcc/configure.in
--- clean/egcs-981019/gcc/configure.in Mon Oct 19 05:33:15 1998
+++ egcs-981019/gcc/configure.in Tue Oct 20 15:36:28 1998
@@ -673,16 +673,36 @@
# On NetBSD, the headers are already okay, except for math.h.
fixincludes=fixinc.wrap
;;
- arm-*-linux-gnuaout*) # ARM GNU/Linux
+ arm*-*-linux-gnuaout*) # ARM GNU/Linux with a.out
cpu_type=arm
xmake_file=x-linux
- tm_file=arm/linux-gas.h
+ tm_file=arm/linux-aout.h
tmake_file=arm/t-linux
fixincludes=Makefile.in
gnu_ld=yes
;;
- arm-*-aout)
+ arm*-*-linux-gnu*) # ARM GNU/Linux with ELF
+ xm_file=arm/xm-linux.h
+ xmake_file=x-linux
+ case $machine in
+ armv2*-*-*)
+ tm_file=arm/linux-elf26.h
+ ;;
+ *)
+ tm_file=arm/linux-elf.h
+ ;;
+ esac
+ tmake_file="t-linux arm/t-linux"
+ extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
+ fixincludes=Makefile.in # Nothing to fix
+ gnu_ld=yes
+ ;;
+ arm*-*-aout)
tm_file=arm/aout.h
+ tmake_file=arm/t-bare
+ ;;
+ arm*-*-elf)
+ tm_file=arm/elf.h
tmake_file=arm/t-bare
;;
c1-convex-*) # Convex C1