gcc: Support only the latest branch releases of gcc

This change, as per #222, reduces the number of supported releases of
gcc to the latest branch releases.

I noticed while doing this work that gcc-4.5.4 was never added, so I
moved patches for gcc-4.5.3 to 4.5.4 and updated the
bfin-unknown-linux-uclibc example. Also, 120-siginfo.patch was fixed
upstream in the 4.5.4 release, so this patch is omitted.

I also bumped the avr sample to 4.9.3 from 4.9.2.

With the addition of gcc-5.x, the gcc release team now releases the
major.minor.0 versions, while updates to the branch are available in
svn/git. We'll address that when we get to issue #219. This change just
removes CC_GCC_5_1 and moves CC_GCC_5_2 to CC_GCC_5, and removes
CC_GCC_5_1_or_later and moves CC_GCC_5_2_or_later to CC_GCC_5_or_later.

This is the first of two part changes, as mentioned in #222.
This change is slated for release in 1.22.0. The next change will be
slated for 1.23.0, and will limit gcc versions to what is on
https://gcc.gnu.org under "Release Series and Status", which is
currently 4.9.3 and 5.2.0, although I will also support the previous
supported version. In this example that would be 4.8.5.

Last, but not least, this change also retires AVR32 support.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

3 files changed, 0 insertions, 156 deletions

diff --git a/patches/gcc/4.8.2/001_gcc_4_8_2_backport_patches_to_fix_parallel_build_fail_PR_57683.patch b/patches/gcc/4.8.2/001_gcc_4_8_2_backport_patches_to_fix_parallel_build_fail_PR_57683.patch
deleted file mode 100644
index dc29a7b..0000000
--- a/patches/gcc/4.8.2/001_gcc_4_8_2_backport_patches_to_fix_parallel_build_fail_PR_57683.patch
+++ /dev/null
@@ -1,26 +0,0 @@
---- gcc-4.8.2/gcc/Makefile.in	2013-11-22 02:14:33.815230904 +0100
-+++ gcc-4.8.2_patch/gcc/Makefile.in	2013-11-22 02:14:38.391230732 +0100
-@@ -3037,7 +3037,7 @@
-     $(TM_H) coretypes.h $(GIMPLE_H) \
-     $(TREE_PASS_H) $(FLAGS_H) $(EXPR_H) $(BASIC_BLOCK_H) \
-     $(GGC_H) $(OBSTACK_H) $(PARAMS_H) $(CPPLIB_H) $(PARAMS_H) \
--    $(GIMPLE_PRETTY_PRINT_H) langhooks.h
-+    $(GIMPLE_PRETTY_PRINT_H) langhooks.h $(OPTABS_H)
- tree-complex.o : tree-complex.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TREE_H) \
-     $(TM_H) $(FLAGS_H) $(TREE_FLOW_H) $(GIMPLE_H) \
-     tree-iterator.h $(TREE_PASS_H) tree-ssa-propagate.h
-@@ -3276,12 +3276,12 @@
-    $(TM_H) $(RTL_H) $(REGS_H) insn-config.h insn-codes.h $(DF_H) \
-    $(RECOG_H) output.h addresses.h $(REGS_H) hard-reg-set.h $(FLAGS_H) \
-    $(FUNCTION_H) $(EXPR_H) $(BASIC_BLOCK_H) $(TM_P_H) $(EXCEPT_H) \
--   ira.h rtl-error.h $(LRA_INT_H)
-+   ira.h rtl-error.h $(LRA_INT_H) $(OPTABS_H)
- lra-eliminations.o : lra-eliminations.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
-    $(TM_H) $(RTL_H) $(REGS_H) insn-config.h $(DF_H) \
-    $(RECOG_H) output.h $(REGS_H) hard-reg-set.h $(FLAGS_H) $(FUNCTION_H) \
-    $(EXPR_H) $(BASIC_BLOCK_H) $(TM_P_H) $(EXCEPT_H) ira.h \
--   rtl-error.h $(LRA_INT_H)
-+   rtl-error.h $(LRA_INT_H) $(OPTABS_H)
- lra-lives.o : lra-lives.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
-    $(RTL_H) $(REGS_H) insn-config.h $(DF_H) \
-    $(RECOG_H) output.h $(REGS_H) hard-reg-set.h $(FLAGS_H) $(FUNCTION_H) \
diff --git a/patches/gcc/4.8.2/100-arm_expand_epilogue_apcs_frame-emit-blockage.patch b/patches/gcc/4.8.2/100-arm_expand_epilogue_apcs_frame-emit-blockage.patch
deleted file mode 100644
index 333438d..0000000
--- a/patches/gcc/4.8.2/100-arm_expand_epilogue_apcs_frame-emit-blockage.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-commit 9a228f68817f79bbd1d295b8e6fcaed25c47ee8f
-Author: ramana <ramana@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date:   Wed Oct 30 10:54:04 2013 +0000
-
-    Fix PR target/58854
-    
-    2013-10-30  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
-    
-    	PR target/58854
-    	* config/arm/arm.c (arm_expand_epilogue_apcs_frame): Emit blockage.
-    
-    
-    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204203 138bc75d-0d04-0410-961f-82ee72b054a4
-
-[yann.morin.1998@free.fr: removed the patch to the Changelog, it does not
- apply and we don't really need it; re-diff to avoid offsets]
-
-diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
-index 212a4bc..23dfc0e 100644
---- a/gcc/config/arm/arm.c
-+++ b/gcc/config/arm/arm.c
-@@ -23555,6 +23555,7 @@ arm_expand_epilogue_apcs_frame (bool really_return)
-   num_regs = bit_count (saved_regs_mask);
-   if ((offsets->outgoing_args != (1 + num_regs)) || cfun->calls_alloca)
-     {
-+      emit_insn (gen_blockage ());
-       /* Unwind the stack to just below the saved registers.  */
-       emit_insn (gen_addsi3 (stack_pointer_rtx,
-                              hard_frame_pointer_rtx,
diff --git a/patches/gcc/4.8.2/110-fix-PR-target-58595.patch b/patches/gcc/4.8.2/110-fix-PR-target-58595.patch
deleted file mode 100644
index 62a3994..0000000
--- a/patches/gcc/4.8.2/110-fix-PR-target-58595.patch
+++ /dev/null
@@ -1,101 +0,0 @@
-Backport fix for PR target/58595
-
-From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date: Thu, 6 Mar 2014 12:07:07 +0000
-Subject: [PATCH] 	PR target/58595 	* config/arm/arm.c
- (arm_tls_symbol_p): Remove. 	(arm_legitimize_address): Call
- legitimize_tls_address for any 	arm_tls_referenced_p expression,
- handle constant addend.  Call it 	before testing for !TARGET_ARM. 
- (thumb_legitimize_address): Don't handle arm_tls_symbol_p here.
-
-	* gcc.dg/tls/pr58595.c: New test.
-
-
-git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208380 138bc75d-0d04-0410-961f-82ee72b054a4
-
-Index: gcc-4.8.2/gcc/config/arm/arm.c
-===================================================================
---- gcc-4.8.2.orig/gcc/config/arm/arm.c
-+++ gcc-4.8.2/gcc/config/arm/arm.c
-@@ -230,7 +230,6 @@ static tree arm_gimplify_va_arg_expr (tr
- static void arm_option_override (void);
- static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode);
- static bool arm_cannot_copy_insn_p (rtx);
--static bool arm_tls_symbol_p (rtx x);
- static int arm_issue_rate (void);
- static void arm_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
- static bool arm_output_addr_const_extra (FILE *, rtx);
-@@ -6573,6 +6572,32 @@ legitimize_tls_address (rtx x, rtx reg)
- rtx
- arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
- {
-+  if (arm_tls_referenced_p (x))
-+    {
-+      rtx addend = NULL;
-+
-+      if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS)
-+	{
-+	  addend = XEXP (XEXP (x, 0), 1);
-+	  x = XEXP (XEXP (x, 0), 0);
-+	}
-+
-+      if (GET_CODE (x) != SYMBOL_REF)
-+	return x;
-+
-+      gcc_assert (SYMBOL_REF_TLS_MODEL (x) != 0);
-+
-+      x = legitimize_tls_address (x, NULL_RTX);
-+
-+      if (addend)
-+	{
-+	  x = gen_rtx_PLUS (SImode, x, addend);
-+	  orig_x = x;
-+	}
-+      else
-+	return x;
-+    }
-+
-   if (!TARGET_ARM)
-     {
-       /* TODO: legitimize_address for Thumb2.  */
-@@ -6581,9 +6606,6 @@ arm_legitimize_address (rtx x, rtx orig_
-       return thumb_legitimize_address (x, orig_x, mode);
-     }
- 
--  if (arm_tls_symbol_p (x))
--    return legitimize_tls_address (x, NULL_RTX);
--
-   if (GET_CODE (x) == PLUS)
-     {
-       rtx xop0 = XEXP (x, 0);
-@@ -6695,9 +6717,6 @@ arm_legitimize_address (rtx x, rtx orig_
- rtx
- thumb_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
- {
--  if (arm_tls_symbol_p (x))
--    return legitimize_tls_address (x, NULL_RTX);
--
-   if (GET_CODE (x) == PLUS
-       && CONST_INT_P (XEXP (x, 1))
-       && (INTVAL (XEXP (x, 1)) >= 32 * GET_MODE_SIZE (mode)
-@@ -6988,20 +7007,6 @@ thumb_legitimize_reload_address (rtx *x_
- 
- /* Test for various thread-local symbols.  */
- 
--/* Return TRUE if X is a thread-local symbol.  */
--
--static bool
--arm_tls_symbol_p (rtx x)
--{
--  if (! TARGET_HAVE_TLS)
--    return false;
--
--  if (GET_CODE (x) != SYMBOL_REF)
--    return false;
--
--  return SYMBOL_REF_TLS_MODEL (x) != 0;
--}
--
- /* Helper for arm_tls_referenced_p.  */
- 
- static int