GCC toolchain including a fix for softfloat and armv4 EABI support.

7 files changed, 375 insertions, 0 deletions

diff --git a/sys-devel/gcc/files/4.0.2/gcc-4.0.2-softfloat.patch b/sys-devel/gcc/files/4.0.2/gcc-4.0.2-softfloat.patch
new file mode 100644
index 0000000..e49fea6
--- /dev/null
+++ b/sys-devel/gcc/files/4.0.2/gcc-4.0.2-softfloat.patch
@@ -0,0 +1,84 @@
+The hunk for gcc/config/arm/t-linux comes from:
+http://gcc.gnu.org/PR14352
+
+The rest is a custom job by Yuri Vasilevski.
+
+The idea here is that we add soft float support into the spec file
+so that we don't have to worry about packages stripping out softfloat
+flags from CFLAGS/CXXFLAGS.
+
+http://bugs.gentoo.org/75585
+
+--- gcc-4.0.2/gcc/config/arm/elf.h
++++ gcc-4.0.2/gcc/config/arm/elf.h
+@@ -45,8 +45,9 @@
+ #endif
+ 
+ #ifndef SUBTARGET_ASM_FLOAT_SPEC
+-#define SUBTARGET_ASM_FLOAT_SPEC "\
+-%{mapcs-float:-mfloat}"
++#define SUBTARGET_ASM_FLOAT_SPEC "%{mapcs-float:-mfloat} \
++  %{mhard-float:-mfpu=fpa} \
++  %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
+ #endif
+ 
+ #ifndef ASM_SPEC
+@@ -58,8 +59,6 @@
+ %{mapcs-*:-mapcs-%*} \
+ %(subtarget_asm_float_spec) \
+ %{mthumb-interwork:-mthumb-interwork} \
+-%{msoft-float:-mfloat-abi=soft} %{mhard-float:-mfloat-abi=hard} \
+-%{mfloat-abi=*} %{mfpu=*} \
+ %(subtarget_extra_asm_spec)"
+ #endif
+ 
+--- gcc-4.0.2/gcc/config/arm/linux-elf.h
++++ gcc-4.0.2/gcc/config/arm/linux-elf.h
+@@ -32,18 +32,22 @@
+ #endif
+ 
+ #undef  TARGET_DEFAULT_FLOAT_ABI
+-#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
++#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
+ 
+ #undef  TARGET_DEFAULT
+ #define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
+ 
++#undef  SUBTARGET_EXTRA_ASM_SPEC
++#define SUBTARGET_EXTRA_ASM_SPEC "%{mhard-float:-mfpu=fpa} \
++  %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
++
+ #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
+ 
+ #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+ 
+ #undef  MULTILIB_DEFAULTS
+ #define MULTILIB_DEFAULTS \
+-	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
++	{ "marm", TARGET_ENDIAN_OPTION, "msoft-float", "mno-thumb-interwork" }
+ 
+ /* The GNU C++ standard library requires that these macros be defined.  */
+ #undef CPLUSPLUS_CPP_SPEC
+@@ -56,7 +60,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-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
+--- gcc-4.0.2/gcc/config/arm/t-linux
++++ gcc-4.0.2/gcc/config/arm/t-linux
+@@ -4,7 +4,10 @@ TARGET_LIBGCC2_CFLAGS = -fomit-frame-poi
+ 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 _floatdidf _floatdisf
+ 
+ # MULTILIB_OPTIONS = mhard-float/msoft-float
+ # MULTILIB_DIRNAMES = hard-float soft-float
diff --git a/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch
new file mode 100644
index 0000000..523caa4
--- /dev/null
+++ b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch
@@ -0,0 +1,40 @@
+Some notes on the 'bootstrap with or without libc headers' debate:
+http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html
+http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html
+
+--- gcc/unwind-dw2.c
++++ gcc/unwind-dw2.c
+@@ -253,9 +253,11 @@
+ }
+ #endif
+ 
++#ifndef inhibit_libc
+ #ifdef MD_UNWIND_SUPPORT
+ #include MD_UNWIND_SUPPORT
+ #endif
++#endif
+ 
+ /* Extract any interesting information from the CIE for the translation
+    unit F belongs to.  Return a pointer to the byte after the augmentation,
+--- gcc/configure
++++ gcc/configure
+@@ -12857,7 +12857,7 @@ then
+ 	    | powerpc*-*-*,powerpc64*-*-*)
+ 		CROSS="$CROSS -DNATIVE_CROSS" ;;
+ 	esac
+-elif test "x$TARGET_SYSTEM_ROOT" != x; then
++elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
+         SYSTEM_HEADER_DIR=$build_system_header_dir
+ fi
+ 
+--- gcc/configure.ac
++++ gcc/configure.ac
+@@ -1717,7 +1717,7 @@ then
+ 	    | powerpc*-*-*,powerpc64*-*-*)
+ 		CROSS="$CROSS -DNATIVE_CROSS" ;;
+ 	esac
+-elif test "x$TARGET_SYSTEM_ROOT" != x; then
++elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
+         SYSTEM_HEADER_DIR=$build_system_header_dir 
+ fi
+ 
diff --git a/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch
new file mode 100644
index 0000000..6090d66
--- /dev/null
+++ b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch
@@ -0,0 +1,64 @@
+workaround for lame stack packing on i386 ...
+
+	- build gcc with -Os (crtfastmath.o to be specific)
+	- crtfastmath.o is installed into gcc libdir
+	- run gcc with -ffast-math and get crtfastmath.o linked in
+	- resulting compiled app segfaults due to init code in
+	  crtfastmath.o that has mis-aligned structure on stack
+
+http://bugs.gentoo.org/147020
+http://gcc.gnu.org/PR28621
+
+this is supposed to be fixed in current 4.1 branch, but i'm unable to get
+the fix to work so until i can figure out what i'm doing wrong, we'll use
+this workaround for now.
+
+--- gcc-4.1.1/gcc/config/i386/crtfastmath.c
++++ gcc-4.1.1/gcc/config/i386/crtfastmath.c
+@@ -37,6 +37,23 @@
+ #define FXSAVE	(1 << 24)
+ #define SSE	(1 << 25)
+ 
++struct
++{
++	unsigned short int cwd;
++	unsigned short int swd;
++	unsigned short int twd;
++	unsigned short int fop;
++	long int fip;
++	long int fcs;
++	long int foo;
++	long int fos;
++	long int mxcsr;
++	long int mxcsr_mask;
++	long int st_space[32];
++	long int xmm_space[32];
++	long int padding[56];
++} __attribute__ ((aligned (16))) fxsave;
++
+ static void __attribute__((constructor))
+ set_fast_math (void)
+ {
+@@ -75,22 +92,6 @@
+       if (edx & FXSAVE)
+ 	{
+ 	  /* Check if DAZ is available.  */
+-	  struct
+-	    {
+-	      unsigned short int cwd;
+-	      unsigned short int swd;
+-	      unsigned short int twd;
+-	      unsigned short int fop;
+-	      long int fip;
+-	      long int fcs;
+-	      long int foo;
+-	      long int fos;
+-	      long int mxcsr;
+-	      long int mxcsr_mask;
+-	      long int st_space[32];
+-	      long int xmm_space[32];
+-	      long int padding[56];
+-	    } __attribute__ ((aligned (16))) fxsave;
+ 
+ 	  __builtin_memset (&fxsave, 0, sizeof (fxsave));
+ 
diff --git a/sys-devel/gcc/files/4.3.1/gcc-4.3.1-repair-incpath.patch b/sys-devel/gcc/files/4.3.1/gcc-4.3.1-repair-incpath.patch
new file mode 100644
index 0000000..657de62
--- /dev/null
+++ b/sys-devel/gcc/files/4.3.1/gcc-4.3.1-repair-incpath.patch
@@ -0,0 +1,50 @@
+Fix the include directories for cross compilation automagically
+(patch by Ned Ludd <solar@gentoo.org> on the Gentoo embedded mailinglist 2008-09-21)
+
+--- gcc/c-incpath.c	2007-09-01 08:28:30.000000000 -0700
++++ gcc/c-incpath.c	2008-09-19 20:32:27.000000000 -0700
+@@ -332,6 +332,32 @@
+   tails[chain] = p;
+ }
+ 
++#ifdef CROSS_COMPILE
++/* Rewrite the include paths for cross compiles */
++char *cross_fixup_path(char *path);
++char *cross_fixup_path(char *path) {
++	char *name, *root, *ptr;
++	int len;
++
++	root = getenv("ROOT");
++	if (root == NULL)
++		return name;
++
++	if (strstr(path, "/usr/include") != path)
++		return path;
++
++	name = xstrdup(path);
++	len = strlen(root) + strlen(name) + 2;
++	ptr = (char *) xmalloc (len);
++	sprintf(ptr, "%s/%s", root, name);
++	fprintf(stderr, _("Autofixing Invalid Cross Include Path: %s -> %s\n"), name, ptr);
++	free(path);
++	path = ptr;
++	name = path;
++	return name;
++}
++#endif
++
+ /* Add PATH to the include chain CHAIN. PATH must be malloc-ed and
+    NUL-terminated.  */
+ void
+@@ -359,6 +385,11 @@
+   p->construct = 0;
+   p->user_supplied_p = user_supplied_p;
+ 
++#ifdef CROSS_COMPILE
++  path = cross_fixup_path(path);
++  p->name = path;
++#endif
++
+   add_cpp_dir_path (p, chain);
+ }
+ 
diff --git a/sys-devel/gcc/files/4.3.1/gcc-4.3.1-softfloat.patch b/sys-devel/gcc/files/4.3.1/gcc-4.3.1-softfloat.patch
new file mode 100644
index 0000000..608942a
--- /dev/null
+++ b/sys-devel/gcc/files/4.3.1/gcc-4.3.1-softfloat.patch
@@ -0,0 +1,80 @@
+Softfloat patch required for arm.
+(patch by TuXXX http://en.gentoo-wiki.com/User:TuXXX) 
+
+--- gcc-4.3.1/gcc/config/arm/elf.h      2008-09-07 01:35:13.000000000 +0200
++++ gcc-4.3.1/gcc/config/arm/elf.h      2008-09-07 01:35:33.000000000 +0200
+@@ -44,8 +44,9 @@
+ #endif
+ 
+ #ifndef SUBTARGET_ASM_FLOAT_SPEC
+-#define SUBTARGET_ASM_FLOAT_SPEC "\
+-%{mapcs-float:-mfloat}"
++#define SUBTARGET_ASM_FLOAT_SPEC "%{mapcs-float:-mfloat} \
++  %{mhard-float:-mfpu=fpa} \
++  %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
+ #endif
+ 
+ #ifndef ASM_SPEC
+@@ -57,8 +58,6 @@
+ %{mapcs-*:-mapcs-%*} \
+ %(subtarget_asm_float_spec) \
+ %{mthumb-interwork:-mthumb-interwork} \
+-%{msoft-float:-mfloat-abi=soft} %{mhard-float:-mfloat-abi=hard} \
+-%{mfloat-abi=*} %{mfpu=*} \
+ %(subtarget_extra_asm_spec)"
+ #endif
+ 
+--- gcc-4.3.1/gcc/config/arm/t-linux    2008-09-07 01:35:24.000000000 +0200
++++ gcc-4.3.1/gcc/config/arm/t-linux    2008-09-07 01:35:33.000000000 +0200
+@@ -3,7 +3,10 @@
+ TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC
+ 
+ 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 _floatdidf _floatdisf
+ 
+ # MULTILIB_OPTIONS = mhard-float/msoft-float
+ # MULTILIB_DIRNAMES = hard-float soft-float
+
+--- gcc-4.3.1/gcc/config/arm/linux-elf.h	2008-09-07 12:59:06.000000000 +0200
++++ gcc-4.3.1/gcc/config/arm/linux-elf.h.new	2008-09-07 12:57:52.000000000 +0200
+@@ -28,7 +28,7 @@
+ #define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);
+ 
+ #undef  TARGET_DEFAULT_FLOAT_ABI
+-#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
++#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
+ 
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+    config.gcc for big endian configurations.  */
+@@ -45,13 +45,17 @@
+ #undef  TARGET_DEFAULT
+ #define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
+ 
++#undef  SUBTARGET_EXTRA_ASM_SPEC
++#define SUBTARGET_EXTRA_ASM_SPEC "%{mhard-float:-mfpu=fpa} \
++   %{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
++
+ #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
+ 
+ #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+ 
+ #undef  MULTILIB_DEFAULTS
+ #define MULTILIB_DEFAULTS \
+-	{ "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
++	{ "marm", "mlittle-endian", "msoft-float", "mno-thumb-interwork" }
+ 
+ /* Now we define the strings used to build the spec file.  */
+ #undef  LIB_SPEC
+@@ -60,7 +64,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
diff --git a/sys-devel/gcc/files/gcc-configure-texinfo.patch b/sys-devel/gcc/files/gcc-configure-texinfo.patch
new file mode 100644
index 0000000..ddc098d
--- /dev/null
+++ b/sys-devel/gcc/files/gcc-configure-texinfo.patch
@@ -0,0 +1,16 @@
+Chances are quite good that the installed makeinfo is sufficient.
+So ignore false positives where the makeinfo installed is so new
+that it violates the cheesy version grep.
+
+http://bugs.gentoo.org/198182
+
+--- configure
++++ configure
+@@ -3573,6 +3573,6 @@
+       :
+     else
+-      MAKEINFO="$MISSING makeinfo"
++      :
+     fi
+     ;;
+ 
diff --git a/sys-devel/gcc/files/gcc-spec-env.patch b/sys-devel/gcc/files/gcc-spec-env.patch
new file mode 100644
index 0000000..9d5e666
--- /dev/null
+++ b/sys-devel/gcc/files/gcc-spec-env.patch
@@ -0,0 +1,41 @@
+    Add support for external spec file via the GCC_SPECS env var.  This
+    allows us to easily control pie/ssp defaults with gcc-config profiles.
+
+    Original patch by Rob Holland.  Extended to support multiple
+    entries separated by ':' by Kevin F. Quinn
+
+--- gcc-4/gcc/gcc.c
++++ gcc-4/gcc/gcc.c
+@@ -6482,6 +6482,32 @@
+ 
+   /* Process any user specified specs in the order given on the command
+      line.  */
++#if !(defined (__MSDOS__) || defined (OS2) || defined (VMS) || defined (WIN32))
++  /* Add specs listed in GCC_SPECS.  Note; in the process of separating
++   * each spec listed, the string is overwritten at token boundaries
++   * (':') with '\0', an effect of strtok_r().
++   */
++  GET_ENVIRONMENT (specs_file, "GCC_SPECS");
++  if (specs_file && (strlen(specs_file) > 0))
++    {
++      char *spec, *saveptr;
++      for (spec=strtok_r(specs_file,":",&saveptr);
++           spec!=NULL;
++           spec=strtok_r(NULL,":",&saveptr))
++        {
++          struct user_specs *user = (struct user_specs *)
++            xmalloc (sizeof (struct user_specs));
++
++          user->next = (struct user_specs *) 0;
++          user->filename = spec;
++          if (user_specs_tail)
++            user_specs_tail->next = user;
++          else
++            user_specs_head = user;
++          user_specs_tail = user;
++        }
++    }
++#endif
+   for (uptr = user_specs_head; uptr; uptr = uptr->next)
+     {
+       char *filename = find_a_file (&startfile_prefixes, uptr->filename,