+++ /dev/null
-Note... modified my mjn3 to not conflict with the big endian arm patch.
-Warning!!! Only the linux target is aware of TARGET_ENDIAN_DEFAULT.
-Also changed
- #define SUBTARGET_EXTRA_ASM_SPEC "\
- %{!mcpu=*:-mcpu=xscale} \
- %{mhard-float:-mfpu=fpa} \
- %{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
-to
- #define SUBTARGET_EXTRA_ASM_SPEC "\
- %{mhard-float:-mfpu=fpa} \
- %{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
-in gcc/config/arm/linux-elf.h.
-#
-# Submitted:
-#
-# Dimitry Andric <dimitry@andric.com>, 2004-05-01
-#
-# Description:
-#
-# Nicholas Pitre released this patch for gcc soft-float support here:
-# http://lists.arm.linux.org.uk/pipermail/linux-arm/2003-October/006436.html
-#
-# This version has been adapted to work with gcc 3.4.0.
-#
-# The original patch doesn't distinguish between softfpa and softvfp modes
-# in the way Nicholas Pitre probably meant. His description is:
-#
-# "Default is to use APCS-32 mode with soft-vfp. The old Linux default for
-# floats can be achieved with -mhard-float or with the configure
-# --with-float=hard option. If -msoft-float or --with-float=soft is used then
-# software float support will be used just like the default but with the legacy
-# big endian word ordering for double float representation instead."
-#
-# Which means the following:
-#
-# * If you compile without -mhard-float or -msoft-float, you should get
-# software floating point, using the VFP format. The produced object file
-# should have these flags in its header:
-#
-# private flags = 600: [APCS-32] [VFP float format] [software FP]
-#
-# * If you compile with -mhard-float, you should get hardware floating point,
-# which always uses the FPA format. Object file header flags should be:
-#
-# private flags = 0: [APCS-32] [FPA float format]
-#
-# * If you compile with -msoft-float, you should get software floating point,
-# using the FPA format. This is done for compatibility reasons with many
-# existing distributions. Object file header flags should be:
-#
-# private flags = 200: [APCS-32] [FPA float format] [software FP]
-#
-# The original patch from Nicholas Pitre contained the following constructs:
-#
-# #define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
-# %{mhard-float:-mfpu=fpa} \
-# %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
-#
-# However, gcc doesn't accept this ";:" notation, used in the 3rd line. This
-# is probably the reason Robert Schwebel modified it to:
-#
-# #define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
-# %{mhard-float:-mfpu=fpa} \
-# %{!mhard-float: %{msoft-float:-mfpu=softfpa -mfpu=softvfp}}"
-#
-# But this causes the following behaviour:
-#
-# * If you compile without -mhard-float or -msoft-float, the compiler generates
-# software floating point instructions, but *nothing* is passed to the
-# assembler, which results in an object file which has flags:
-#
-# private flags = 0: [APCS-32] [FPA float format]
-#
-# This is not correct!
-#
-# * If you compile with -mhard-float, the compiler generates hardware floating
-# point instructions, and passes "-mfpu=fpa" to the assembler, which results
-# in an object file which has the same flags as in the previous item, but now
-# those *are* correct.
-#
-# * If you compile with -msoft-float, the compiler generates software floating
-# point instructions, and passes "-mfpu=softfpa -mfpu=softvfp" (in that
-# order) to the assembler, which results in an object file with flags:
-#
-# private flags = 600: [APCS-32] [VFP float format] [software FP]
-#
-# This is not correct, because the last "-mfpu=" option on the assembler
-# command line determines the actual FPU convention used (which should be FPA
-# in this case).
-#
-# Therefore, I modified this patch to get the desired behaviour. Every
-# instance of the notation:
-#
-# %{msoft-float:-mfpu=softfpa -mfpu=softvfp}
-#
-# was changed to:
-#
-# %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}
-#
-# I also did the following:
-#
-# * Modified all TARGET_DEFAULT macros I could find to include ARM_FLAG_VFP, to
-# be consistent with Nicholas' original patch.
-# * Removed any "msoft-float" or "mhard-float" from all MULTILIB_DEFAULTS
-# macros I could find. I think that if you compile without any options, you
-# would like to get the defaults. :)
-# * Removed the extra -lfloat option from LIBGCC_SPEC, since it isn't needed
-# anymore. (The required functions are now in libgcc.)
-
-diff -urN gcc-3.4.1-old/gcc/config/arm/coff.h gcc-3.4.1/gcc/config/arm/coff.h
---- gcc-3.4.1-old/gcc/config/arm/coff.h 2004-02-24 08:25:22.000000000 -0600
-+++ gcc-3.4.1/gcc/config/arm/coff.h 2004-09-02 21:51:15.000000000 -0500
-@@ -31,11 +31,16 @@
- #define TARGET_VERSION fputs (" (ARM/coff)", stderr)
-
- #undef TARGET_DEFAULT
--#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
-+#define TARGET_DEFAULT \
-+ ( ARM_FLAG_SOFT_FLOAT \
-+ | ARM_FLAG_VFP \
-+ | ARM_FLAG_APCS_32 \
-+ | ARM_FLAG_APCS_FRAME \
-+ | ARM_FLAG_MMU_TRAPS )
-
- #ifndef MULTILIB_DEFAULTS
- #define MULTILIB_DEFAULTS \
-- { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }
-+ { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork" }
- #endif
- \f
- /* This is COFF, but prefer stabs. */
-diff -urN gcc-3.4.1-old/gcc/config/arm/elf.h gcc-3.4.1/gcc/config/arm/elf.h
---- gcc-3.4.1-old/gcc/config/arm/elf.h 2004-02-24 08:25:22.000000000 -0600
-+++ gcc-3.4.1/gcc/config/arm/elf.h 2004-09-02 21:51:15.000000000 -0500
-@@ -46,7 +46,9 @@
-
- #ifndef SUBTARGET_ASM_FLOAT_SPEC
- #define SUBTARGET_ASM_FLOAT_SPEC "\
--%{mapcs-float:-mfloat} %{msoft-float:-mfpu=softfpa}"
-+%{mapcs-float:-mfloat} \
-+%{mhard-float:-mfpu=fpa} \
-+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
- #endif
-
- #ifndef ASM_SPEC
-@@ -106,12 +108,17 @@
- #endif
-
- #ifndef TARGET_DEFAULT
--#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
-+#define TARGET_DEFAULT \
-+ ( ARM_FLAG_SOFT_FLOAT \
-+ | ARM_FLAG_VFP \
-+ | ARM_FLAG_APCS_32 \
-+ | ARM_FLAG_APCS_FRAME \
-+ | ARM_FLAG_MMU_TRAPS )
- #endif
-
- #ifndef MULTILIB_DEFAULTS
- #define MULTILIB_DEFAULTS \
-- { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }
-+ { "marm", "mlittle-endian", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" }
- #endif
- \f
- #define TARGET_ASM_FILE_START_APP_OFF true
-diff -urN gcc-3.4.1-old/gcc/config/arm/linux-elf.h gcc-3.4.1/gcc/config/arm/linux-elf.h
---- gcc-3.4.1-old/gcc/config/arm/linux-elf.h 2004-09-02 21:50:52.000000000 -0500
-+++ gcc-3.4.1/gcc/config/arm/linux-elf.h 2004-09-02 22:00:49.000000000 -0500
-@@ -44,12 +44,26 @@
- #define TARGET_LINKER_EMULATION "armelf_linux"
- #endif
-
--/* Default is to use APCS-32 mode. */
-+/*
-+ * Default is to use APCS-32 mode with soft-vfp.
-+ * The old Linux default for floats can be achieved with -mhard-float
-+ * or with the configure --with-float=hard option.
-+ * If -msoft-float or --with-float=soft is used then software float
-+ * support will be used just like the default but with the legacy
-+ * big endian word ordering for double float representation instead.
-+ */
- #undef TARGET_DEFAULT
--#define TARGET_DEFAULT \
-- ( ARM_FLAG_APCS_32 | \
-- ARM_FLAG_MMU_TRAPS | \
-- TARGET_ENDIAN_DEFAULT )
-+#define TARGET_DEFAULT \
-+ ( ARM_FLAG_APCS_32 \
-+ | ARM_FLAG_SOFT_FLOAT \
-+ | TARGET_ENDIAN_DEFAULT \
-+ | ARM_FLAG_VFP \
-+ | ARM_FLAG_MMU_TRAPS )
-+
-+#undef SUBTARGET_EXTRA_ASM_SPEC
-+#define SUBTARGET_EXTRA_ASM_SPEC "\
-+%{mhard-float:-mfpu=fpa} \
-+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
-
- #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
-
-@@ -57,7 +71,7 @@
-
- #undef MULTILIB_DEFAULTS
- #define MULTILIB_DEFAULTS \
-- { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }
-+ { "marm", TARGET_ENDIAN_OPTION, "mapcs-32", "mno-thumb-interwork" }
-
- #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
-
-@@ -72,7 +86,7 @@
- %{shared:-lc} \
- %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
-
--#define LIBGCC_SPEC "%{msoft-float:-lfloat} -lgcc"
-+#define LIBGCC_SPEC "-lgcc"
-
- /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
- the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
-diff -urN gcc-3.4.1-old/gcc/config/arm/t-linux gcc-3.4.1/gcc/config/arm/t-linux
---- gcc-3.4.1-old/gcc/config/arm/t-linux 2003-09-20 16:09:07.000000000 -0500
-+++ gcc-3.4.1/gcc/config/arm/t-linux 2004-09-02 21:51:15.000000000 -0500
-@@ -4,7 +4,10 @@
- LIBGCC2_DEBUG_CFLAGS = -g0
-
- LIB1ASMSRC = arm/lib1funcs.asm
--LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx
-+LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx \
-+ _negdf2 _addsubdf3 _muldivdf3 _cmpdf2 _unorddf2 _fixdfsi _fixunsdfsi \
-+ _truncdfsf2 _negsf2 _addsubsf3 _muldivsf3 _cmpsf2 _unordsf2 \
-+ _fixsfsi _fixunssfsi
-
- # MULTILIB_OPTIONS = mhard-float/msoft-float
- # MULTILIB_DIRNAMES = hard-float soft-float
-diff -urN gcc-3.4.1-old/gcc/config/arm/unknown-elf.h gcc-3.4.1/gcc/config/arm/unknown-elf.h
---- gcc-3.4.1-old/gcc/config/arm/unknown-elf.h 2004-02-24 08:25:22.000000000 -0600
-+++ gcc-3.4.1/gcc/config/arm/unknown-elf.h 2004-09-02 21:51:15.000000000 -0500
-@@ -30,7 +30,12 @@
-
- /* Default to using APCS-32 and software floating point. */
- #ifndef TARGET_DEFAULT
--#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME | ARM_FLAG_MMU_TRAPS)
-+#define TARGET_DEFAULT \
-+ ( ARM_FLAG_SOFT_FLOAT \
-+ | ARM_FLAG_VFP \
-+ | ARM_FLAG_APCS_32 \
-+ | ARM_FLAG_APCS_FRAME \
-+ | ARM_FLAG_MMU_TRAPS )
- #endif
-
- /* Now we define the strings used to build the spec file. */
-diff -urN gcc-3.4.1-old/gcc/config/arm/xscale-elf.h gcc-3.4.1/gcc/config/arm/xscale-elf.h
---- gcc-3.4.1-old/gcc/config/arm/xscale-elf.h 2003-07-01 18:26:43.000000000 -0500
-+++ gcc-3.4.1/gcc/config/arm/xscale-elf.h 2004-09-02 21:51:15.000000000 -0500
-@@ -49,11 +49,12 @@
- endian, regardless of the endian-ness of the memory
- system. */
-
--#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
-- %{mhard-float:-mfpu=fpa} \
-- %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
-+#define SUBTARGET_EXTRA_ASM_SPEC "\
-+%{!mcpu=*:-mcpu=xscale} \
-+%{mhard-float:-mfpu=fpa} \
-+%{!mhard-float: %{msoft-float:-mfpu=softfpa} %{!msoft-float:-mfpu=softvfp}}"
-
- #ifndef MULTILIB_DEFAULTS
- #define MULTILIB_DEFAULTS \
-- { "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }
-+ { "mlittle-endian", "mno-thumb-interwork", "marm" }
- #endif
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