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Re: bogus .quad in i386/att.h
On Tirsdag 09 Oktober 2001 03:43, Billinghurst, David (CRTS) wrote:
> and it broke cygwin bootstrap
> http://gcc.gnu.org/ml/gcc-bugs/2001-10/msg00084.html
>
> -----Original Message-----
> From: Robert Lipe [mailto:robertlipe@usa.net]
> Sent: Tuesday, 9 October 2001 11:38
> To: gcc@gcc.gnu.org
> Cc: jh@suze.cz
> Subject: bogus .quad in i386/att.h
>
>
> Jan, your commit that starts:
>
> Tue Oct 2 12:46:01 CEST 2001 Bo Thorsen <bo@suse.co.uk>,
> Andreas Jaeger <aj@suse.de>,
> Jan Hubicka <jh@suse.cz>
>
> * doc/invoke.texi (i386 Options): Document x86-64 options.
> (i386 and x86-64 Options): Rename i386 options section.
>
>
> added an entry for ASM_QUAD in att.h. But the ChangeLog does not
> call out any change to att.h.
>
> ..quad is definitely not something supported by the AT&T-derived
> assemblers. Maybe it's a GAS thing and should be in gas.h. Maybe it's
> an x86-64 thing and should be in x86-64.h. But att.h sure seems like
> the wrong place for it. This does show up as testsuite failures.
>
> Can you please move this?
I don't know why Jan re-introduced this, it wasn't in the last patch I sent
before going on vacation. I tested x86-64 compilation without the att.h patch
(which was included in the first time I sent the patch) and it seemed to
work. Jan can you comment on why you added it again?
Bo.
Just as a reference, I'm appending the last patch I sent before being offline
for the last two weeks.
2001-09-21 Bo Thorsen <bo@suse.co.uk>
* config/i386/linux64.h: New spec file for Linux x86-64 support.
* config.gcc: Fix tm_file settings for x86-64.
* config/i386/x86-64.h: New file with OS independent x86-64
definitions.
Index: config.gcc
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.gcc,v
retrieving revision 1.91
diff -u -r1.91 config.gcc
--- config.gcc 2001/09/18 21:51:52 1.91
+++ config.gcc 2001/09/21 14:04:13
@@ -222,6 +222,9 @@
i[34567]86-*-*)
cpu_type=i386
;;
+x86_64-*-*)
+ cpu_type=i386
+ ;;
hppa*-*-* | parisc*-*-*)
cpu_type=pa
;;
@@ -1132,6 +1135,17 @@
# aka GNU/Linux C library 6
xmake_file=x-linux
tm_file="i386/i386.h i386/att.h linux.h i386/linux.h"
+ tmake_file="t-slibgcc-elf-ver t-linux i386/t-crtstuff"
+ extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
+ gnu_ld=yes
+ float_format=i386
+ if test x$enable_threads = xyes; then
+ thread_file='posix'
+ fi
+ ;;
+x86_64-*-linux*)
+ xmake_file=x-linux
+ tm_file="i386/x86-64.h i386/i386.h i386/att.h linux.h i386/linux64.h"
tmake_file="t-slibgcc-elf-ver t-linux i386/t-crtstuff"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
gnu_ld=yes
Index: config/i386/x86-64.h
===================================================================
RCS file: x86-64.h
diff -N x86-64.h
--- /dev/null Tue May 5 13:32:27 1998
+++ x86-64.h Fri Sep 21 07:04:13 2001
@@ -0,0 +1,43 @@
+/* OS independent definitions for AMD x86-64.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ Contributed by Bo Thorsen <bo@suse.de>.
+
+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. */
+
+#define TARGET_64BIT_DEFAULT
+#define NO_BUILTIN_PTRDIFF_TYPE
+#define TARGET_BI_ARCH
+#define NO_BUILTIN_SIZE_TYPE
+
+/* System V Release 4 uses DWARF debugging info. Buf DWARF1 doesn't do
+ 64-bit anything, so we use DWARF2. */
+
+#undef DWARF2_DEBUGGING_INFO
+#undef DWARF_DEBUGGING_INFO
+#undef DBX_DEBUGGING_INFO
+#define DWARF2_DEBUGGING_INFO
+#define DBX_DEBUGGING_INFO
+#define DWARF2_FRAME_INFO (TARGET_64BIT && TARGET_UNWIND_INFO)
+#define DWARF2_UNWIND_INFO 1
+#define ASYNCHRONOUS_DWARF2_UNWIND_INFO (TARGET_64BIT && TARGET_UNWIND_INFO)
+/* Incorrectly autodetected in cross compilation. */
+#undef HAVE_AS_DWARF2_DEBUG_LINE
+#define HAVE_AS_DWARF2_DEBUG_LINE
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
Index: config/i386/linux64.h
===================================================================
RCS file: linux64.h
diff -N linux64.h
--- /dev/null Tue May 5 13:32:27 1998
+++ linux64.h Fri Sep 21 07:04:13 2001
@@ -0,0 +1,147 @@
+/* Definitions for AMD x86-64 running Linux-based GNU systems with ELF
format.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ Contributed by Jan Hubicka <jh@suse.cz> based on linux.h.
+
+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. */
+
+#define LINUX_DEFAULT_ELF
+
+#undef QUAD_ASM_OP
+#define QUAD_ASM_OP "\t.quad\t"
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (x86-64 Linux/ELF)");
+
+/* The svr4 ABI for the i386 says that records and unions are returned
+ in memory. */
+#undef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+
+#undef ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
+
+/* This is how to output an element of a case-vector that is relative.
+ This is only used for PIC code. See comments by the `casesi' insn in
+ i386.md for an explanation of the expression this outputs. */
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
+ if (TARGET_64BIT) \
+ fprintf (FILE, "\t.long %s%d-.+4+(.-%s%d)\n", LPREFIX, VALUE, LPREFIX,
REL); \
+ else \
+ fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX,
VALUE)
+
+/* Indicate that jump tables go in the text section. This is
+ necessary when compiling PIC code. */
+#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic && !TARGET_64BIT)
+
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(n) \
+ (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
+
+/* Output assembler code to FILE to call the profiler.
+ To the best of my knowledge, no Linux libc has required the label
+ argument to mcount. */
+
+#define NO_PROFILE_COUNTERS
+
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE, LABELNO) \
+{ \
+ if (flag_pic)
\
+ fprintf (FILE, "\tcall\t*mcount@GOT(%%ebx)\n"); \
+ else \
+ fprintf (FILE, "\tcall\tmcount\n");
\
+}
+
+#undef SIZE_TYPE
+#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-D__ELF__ -Dunix -Dlinux -Asystem(posix)"
+
+#undef CPP_SPEC
+#ifdef USE_GNULIBC_1
+#define CPP_SPEC "%(cpp_cpu) %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__
-D__pic__} %{posix:-D_POSIX_SOURCE}"
+#else
+#define CPP_SPEC "%(cpp_cpu) %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__
-D__pic__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
%{!m32:-D__LONG_MAX__=9223372036854775807L}"
+#endif
+
+#undef CC1_SPEC
+#define CC1_SPEC "%(cc1_cpu) %{profile:-p}"
+
+/* Provide a LINK_SPEC appropriate for Linux. Here we provide support
+ for the special GCC options -static and -shared, which allow us to
+ link things in one of these three modes by applying the appropriate
+ combinations of options at link-time. We like to support here for
+ as many of the other GNU linker options as possible. But I don't
+ have the time to search for those flags. I am sure how to add
+ support for -soname shared_object_name. H.J.
+
+ I took out %{v:%{!V:-V}}. It is too much :-(. They can use
+ -Wl,-V.
+
+ When the -shared link option is used a final link is not being
+ done. */
+
+/* If ELF is the default format, we should not use /lib/elf. */
+
+#undef LINK_SPEC
+#define LINK_SPEC "%{!m32:-m elf_x86_64} %{m32:-m elf_i386}
%{shared:-shared} \
+ %{!shared: \
+ %{!ibcs: \
+ %{!static: \
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker /lib/ld64.so.1}} \
+ %{static:-static}}}"
+
+#undef ASM_SPEC
+#define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} \
+ %{Wa,*:%*} %{m32:--32}"
+
+/* A C statement (sans semicolon) to output to the stdio stream
+ FILE the assembler definition of uninitialized global DECL named
+ NAME whose size is SIZE bytes and alignment is ALIGN bytes.
+ Try to use asm_output_aligned_bss to implement this macro. */
+
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+ asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+
+/* A C statement to output to the stdio stream FILE an assembler
+ command to advance the location counter to a multiple of 1<<LOG
+ bytes if it is within MAX_SKIP bytes.
+
+ This is used to align code labels according to Intel recommendations. */
+
+#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
+#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
+ do { \
+ if ((LOG) != 0) { \
+ if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
+ else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
+ } \
+ } while (0)
+#endif
--
Bo Thorsen | Praestevejen 4
Free software developer | 5290 Marslev
SuSE Labs | Denmark