add toolchain support for raspberry pi

2 files changed, 313 insertions, 0 deletions

diff --git a/toolchain/gcc/patches/4.7.3/armhf.patch b/toolchain/gcc/patches/4.7.3/armhf.patch
new file mode 100644
index 000000000..4c0bf744d
--- /dev/null
+++ b/toolchain/gcc/patches/4.7.3/armhf.patch
@@ -0,0 +1,72 @@
+diff -Nur gcc-4.7.2.orig/gcc/config/arm/linux-eabi.h gcc-4.7.2/gcc/config/arm/linux-eabi.h
+--- gcc-4.7.2.orig/gcc/config/arm/linux-eabi.h	2011-11-02 16:03:19.000000000 +0100
++++ gcc-4.7.2/gcc/config/arm/linux-eabi.h	2013-05-03 16:38:21.000000000 +0200
+@@ -34,7 +34,21 @@
+ /* We default to a soft-float ABI so that binaries can run on all
+    target hardware.  */
+ #undef  TARGET_DEFAULT_FLOAT_ABI
++#ifdef TARGET_CONFIGURED_FLOAT_ABI
++#if TARGET_CONFIGURED_FLOAT_ABI == 2
++#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
++#define MULTILIB_DEFAULT_FLOAT_ABI "mfloat-abi=hard"
++#elif TARGET_CONFIGURED_FLOAT_ABI == 1
++#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFTFP
++#define MULTILIB_DEFAULT_FLOAT_ABI "mfloat-abi=softfp"
++#else
+ #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
++#define MULTILIB_DEFAULT_FLOAT_ABI "mfloat-abi=soft"
++#endif
++#else
++#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
++#define MULTILIB_DEFAULT_FLOAT_ABI "mfloat-abi=soft"
++#endif
+ 
+ /* We default to the "aapcs-linux" ABI so that enums are int-sized by
+    default.  */
+@@ -62,7 +76,45 @@
+ /* Use ld-linux.so.3 so that it will be possible to run "classic"
+    GNU/Linux binaries on an EABI system.  */
+ #undef  GLIBC_DYNAMIC_LINKER
+-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
++#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
++#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
++#ifdef TARGET_CONFIGURED_FLOAT_ABI
++#if TARGET_CONFIGURED_FLOAT_ABI == 2
++#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_HARD_FLOAT
++#else
++#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
++#endif
++#else
++#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
++#endif
++
++#define GLIBC_DYNAMIC_LINKER \
++   "%{mfloat-abi=hard:" GLIBC_DYNAMIC_LINKER_HARD_FLOAT "} \
++    %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
++    %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
++
++/* Set the multilib defaults according the configuration, needed to
++   let gcc -print-multi-dir do the right thing.  */
++
++#if TARGET_BIG_ENDIAN_DEFAULT
++#define MULTILIB_DEFAULT_ENDIAN "mbig-endian"
++#else
++#define MULTILIB_DEFAULT_ENDIAN "mlittle-endian"
++#endif
++
++#ifndef TARGET_CONFIGURED_THUMB_MODE
++#define MULTILIB_DEFAULT_MODE "marm"
++#elif TARGET_CONFIGURED_THUMB_MODE == 1
++#define MULTILIB_DEFAULT_MODE "mthumb"
++#else
++#define MULTILIB_DEFAULT_MODE "marm"
++#endif
++
++#undef  MULTILIB_DEFAULTS
++#define MULTILIB_DEFAULTS \
++       { MULTILIB_DEFAULT_MODE, MULTILIB_DEFAULT_ENDIAN, \
++         MULTILIB_DEFAULT_FLOAT_ABI, "mno-thumb-interwork" }
++
+ 
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
diff --git a/toolchain/gcc/patches/4.7.3/cflags.patch b/toolchain/gcc/patches/4.7.3/cflags.patch
new file mode 100644
index 000000000..a9ccdcbc8
--- /dev/null
+++ b/toolchain/gcc/patches/4.7.3/cflags.patch
@@ -0,0 +1,241 @@
+diff -Nur gcc-4.7.2.orig/gcc/c-family/c-opts.c gcc-4.7.2/gcc/c-family/c-opts.c
+--- gcc-4.7.2.orig/gcc/c-family/c-opts.c	2012-01-18 14:10:40.000000000 +0100
++++ gcc-4.7.2/gcc/c-family/c-opts.c	2012-09-22 12:53:33.000000000 +0200
+@@ -108,6 +108,9 @@
+ /* Number of deferred options scanned for -include.  */
+ static size_t include_cursor;
+ 
++/* Check if a port honours COPTS.  */
++static int honour_copts = 0;
++
+ static void handle_OPT_d (const char *);
+ static void set_std_cxx98 (int);
+ static void set_std_cxx11 (int);
+@@ -449,6 +452,9 @@
+       cpp_opts->warn_endif_labels = value;
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      break;
++
+     case OPT_Wformat:
+       set_Wformat (value);
+       break;
+@@ -592,6 +598,12 @@
+       flag_no_builtin = !value;
+       break;
+ 
++    case OPT_fhonour_copts:
++      if (c_language == clk_c) {
++        honour_copts++;
++      }
++      break;
++
+     case OPT_fconstant_string_class_:
+       constant_string_class_name = arg;
+       break;
+@@ -1098,6 +1110,47 @@
+       return false;
+     }
+ 
++  if (c_language == clk_c) {
++    char *ev = getenv ("GCC_HONOUR_COPTS");
++    int evv;
++    if (ev == NULL)
++      evv = -1;
++    else if ((*ev == '0') || (*ev == '\0'))
++      evv = 0;
++    else if (*ev == '1')
++      evv = 1;
++    else if (*ev == '2')
++      evv = 2;
++    else if (*ev == 's')
++      evv = -1;
++    else {
++      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
++      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
++    }
++    if (evv == 1) {
++      if (honour_copts == 0) {
++        error ("someone does not honour COPTS at all in lenient mode");
++        return false;
++      } else if (honour_copts != 1) {
++        warning (0, "someone does not honour COPTS correctly, passed %d times",
++         honour_copts);
++      }
++    } else if (evv == 2) {
++      if (honour_copts == 0) {
++        error ("someone does not honour COPTS at all in strict mode");
++        return false;
++      } else if (honour_copts != 1) {
++        error ("someone does not honour COPTS correctly, passed %d times",
++         honour_copts);
++        return false;
++      }
++    } else if (evv == 0) {
++      if (honour_copts != 1)
++        inform (0, "someone does not honour COPTS correctly, passed %d times",
++         honour_copts);
++    }
++  }
++
+   return true;
+ }
+ 
+diff -Nur gcc-4.7.2.orig/gcc/c-family/c.opt gcc-4.7.2/gcc/c-family/c.opt
+--- gcc-4.7.2.orig/gcc/c-family/c.opt	2012-02-06 11:31:18.000000000 +0100
++++ gcc-4.7.2/gcc/c-family/c.opt	2012-09-22 12:53:33.000000000 +0200
+@@ -371,6 +371,10 @@
+ C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration)
+ This switch is deprecated; use -Werror=implicit-function-declaration instead
+ 
++Werror-maybe-reset
++C ObjC C++ ObjC++
++; Documented in common.opt
++
+ Wfloat-equal
+ C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+ Warn if testing floating point numbers for equality
+@@ -830,6 +834,9 @@
+ fhonor-std
+ C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+ 
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment
+diff -Nur gcc-4.7.2.orig/gcc/common.opt gcc-4.7.2/gcc/common.opt
+--- gcc-4.7.2.orig/gcc/common.opt	2012-08-06 16:34:27.000000000 +0200
++++ gcc-4.7.2/gcc/common.opt	2012-09-22 12:53:33.000000000 +0200
+@@ -531,6 +531,10 @@
+ Common Joined
+ Treat specified warning as error
+ 
++Werror-maybe-reset
++Common
++If environment variable GCC_NO_WERROR is set, act as -Wno-error
++
+ Wextra
+ Common Var(extra_warnings) Warning
+ Print extra (possibly unwanted) warnings
+@@ -1209,6 +1213,9 @@
+ Common Report Var(flag_guess_branch_prob) Optimization
+ Enable guessing of branch probabilities
+ 
++fhonour-copts
++Common RejectNegative
++
+ ; Nonzero means ignore `#ident' directives.  0 means handle them.
+ ; Generate position-independent code for executables if possible
+ ; On SVR4 targets, it also controls whether or not to emit a
+diff -Nur gcc-4.7.2.orig/gcc/doc/cppopts.texi gcc-4.7.2/gcc/doc/cppopts.texi
+--- gcc-4.7.2.orig/gcc/doc/cppopts.texi	2011-12-20 21:44:13.000000000 +0100
++++ gcc-4.7.2/gcc/doc/cppopts.texi	2012-09-22 12:53:33.000000000 +0200
+@@ -164,6 +164,11 @@
+ Make all warnings into hard errors.  Source code which triggers warnings
+ will be rejected.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
+ @item -Wsystem-headers
+ @opindex Wsystem-headers
+ Issue warnings for code in system headers.  These are normally unhelpful
+diff -Nur gcc-4.7.2.orig/gcc/doc/invoke.texi gcc-4.7.2/gcc/doc/invoke.texi
+--- gcc-4.7.2.orig/gcc/doc/invoke.texi	2012-09-14 22:45:27.000000000 +0200
++++ gcc-4.7.2/gcc/doc/invoke.texi	2012-09-22 12:53:33.000000000 +0200
+@@ -242,7 +242,7 @@
+ -Wconversion  -Wcoverage-mismatch  -Wno-cpp  -Wno-deprecated  @gol
+ -Wno-deprecated-declarations -Wdisabled-optimization  @gol
+ -Wno-div-by-zero -Wdouble-promotion -Wempty-body  -Wenum-compare @gol
+--Wno-endif-labels -Werror  -Werror=* @gol
++-Wno-endif-labels -Werror  -Werror=* -Werror-maybe-reset @gol
+ -Wfatal-errors  -Wfloat-equal  -Wformat  -Wformat=2 @gol
+ -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
+ -Wformat-security  -Wformat-y2k @gol
+@@ -4651,6 +4651,22 @@
+ @option{-Wall} and by @option{-pedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+ 
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
++ at item -fhonour-copts
++ at opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+@@ -6570,7 +6586,7 @@
+ second branch or a point immediately following it, depending on whether
+ the condition is known to be true or false.
+ 
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+ 
+ @item -fsplit-wide-types
+ @opindex fsplit-wide-types
+diff -Nur gcc-4.7.2.orig/gcc/java/jvspec.c gcc-4.7.2/gcc/java/jvspec.c
+--- gcc-4.7.2.orig/gcc/java/jvspec.c	2011-02-13 20:20:01.000000000 +0100
++++ gcc-4.7.2/gcc/java/jvspec.c	2012-09-22 12:53:33.000000000 +0200
+@@ -627,6 +627,7 @@
+      class name.  Append dummy `.c' that can be stripped by set_input so %b
+      is correct.  */ 
+   set_input (concat (main_class_name, "main.c", NULL));
++  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
+   err = do_spec (jvgenmain_spec);
+   if (err == 0)
+     {
+diff -Nur gcc-4.7.2.orig/gcc/opts.c gcc-4.7.2/gcc/opts.c
+--- gcc-4.7.2.orig/gcc/opts.c	2012-01-10 17:27:55.000000000 +0100
++++ gcc-4.7.2/gcc/opts.c	2012-09-22 12:53:33.000000000 +0200
+@@ -470,8 +470,6 @@
+     { OPT_LEVELS_2_PLUS, OPT_fschedule_insns2, NULL, 1 },
+ #endif
+     { OPT_LEVELS_2_PLUS, OPT_fregmove, NULL, 1 },
+-    { OPT_LEVELS_2_PLUS, OPT_fstrict_aliasing, NULL, 1 },
+-    { OPT_LEVELS_2_PLUS, OPT_fstrict_overflow, NULL, 1 },
+     { OPT_LEVELS_2_PLUS, OPT_freorder_blocks, NULL, 1 },
+     { OPT_LEVELS_2_PLUS, OPT_freorder_functions, NULL, 1 },
+     { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 },
+@@ -489,6 +487,8 @@
+     { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_foptimize_strlen, NULL, 1 },
+ 
+     /* -O3 optimizations.  */
++    { OPT_LEVELS_3_PLUS, OPT_fstrict_aliasing, NULL, 1 },
++    { OPT_LEVELS_3_PLUS, OPT_fstrict_overflow, NULL, 1 },
+     { OPT_LEVELS_3_PLUS, OPT_ftree_loop_distribute_patterns, NULL, 1 },
+     { OPT_LEVELS_3_PLUS, OPT_fpredictive_commoning, NULL, 1 },
+     /* Inlining of functions reducing size is a good idea with -Os
+@@ -1432,6 +1432,17 @@
+ 			       opts, opts_set, loc, dc);
+       break;
+ 
++    case OPT_Werror_maybe_reset:
++      {
++        char *ev = getenv ("GCC_NO_WERROR");
++        if ((ev != NULL) && (*ev != '0'))
++          warnings_are_errors = 0;
++      }
++      break;
++
++    case OPT_fhonour_copts:
++      break;
++
+     case OPT_Wlarger_than_:
+       opts->x_larger_than_size = value;
+       opts->x_warn_larger_than = value != -1;