diff options
Diffstat (limited to 'patches/gcc/3.4.4/arm-softfloat.patch')
| -rw-r--r-- | patches/gcc/3.4.4/arm-softfloat.patch | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/patches/gcc/3.4.4/arm-softfloat.patch b/patches/gcc/3.4.4/arm-softfloat.patch deleted file mode 100644 index 19d1b90..0000000 --- a/patches/gcc/3.4.4/arm-softfloat.patch +++ /dev/null @@ -1,270 +0,0 @@ -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 - - /* 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 - - #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 |