arc: add gcc for ARC

ARC needs a specific GCC for now, while we wait for ARC support to get
upstreamed.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/toolchain/gcc/4.4.7-arc/fix_branch_out_of_range.patch b/toolchain/gcc/4.4.7-arc/fix_branch_out_of_range.patch
new file mode 100644 (file)
index 0000000..e39b1cc
--- /dev/null
+++ b/toolchain/gcc/4.4.7-arc/fix_branch_out_of_range.patch
@@ -0,0 +1,30 @@
+arc: Fix operand-out-of-range errors
+
+brcc_s instructions can generate operand-out-of-range errors. While a
+better solution is being discussed by the compiler team, this workaround
+ensures that the chances of running into this issue are low.
+
+Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
+
+diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
+index ff602c0..b3ca4c4 100644
+--- a/gcc/config/arc/arc.c
++++ b/gcc/config/arc/arc.c
+@@ -6565,7 +6565,7 @@ estimate required size increase).
+             rtx *ccp = &XEXP (XVECEXP (pat, 0, 1), 0);
+ 
+             offset = branch_dest (insn) - INSN_ADDRESSES (INSN_UID (insn));
+-            if ((offset >= -140 && offset < 140)
++            if ((offset >= -120 && offset < 120)
+                 && rtx_equal_p (XEXP (op, 1), const0_rtx)
+                 && compact_register_operand (XEXP (op, 0), VOIDmode)
+                 && equality_comparison_operator (op, VOIDmode))
+@@ -6687,7 +6687,7 @@ estimate required size increase).
+ 
+                 if (op0 != cmp0)
+                   cc_clob_rtx = gen_rtx_REG (CC_ZNmode, CC_REG);
+-                else if ((offset >= -140 && offset < 140)
++                else if ((offset >= -120 && offset < 120)
+                          && rtx_equal_p (op1, const0_rtx)
+                          && compact_register_operand (op0, VOIDmode)
+                          && (GET_CODE (op) == EQ

diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index aae422c757f09a059b997d9ef14462a8178904f2..f297e73871a1bd5b84cf3b45860d56886b14483f 100644 (file)
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -9,44 +9,49 @@ choice
        prompt "GCC compiler Version"
        default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
        default BR2_GCC_VERSION_4_2_2_AVR32_2_1_5 if BR2_avr32
+       default BR2_GCC_VERSION_4_4_7_ARC if BR2_arc
        default BR2_GCC_VERSION_4_7_X
        help
          Select the version of gcc you wish to use.
 
+       config BR2_GCC_VERSION_4_4_7_ARC
+               depends on BR2_arc
+               bool "gcc 4.4.7-arc"
+
        config BR2_GCC_VERSION_4_2_2_AVR32_2_1_5
               depends on BR2_avr32
               bool "gcc 4.2.2-avr32-2.1.5"
 
        config BR2_GCC_VERSION_4_3_X
-               depends on !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_a9 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_e300c2 && !BR2_powerpc_e300c3 && !BR2_powerpc_e500mc && !BR2_powerpc_464 && !BR2_powerpc_464fp && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
+               depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_cortex_a5 && !BR2_cortex_a8 && !BR2_cortex_a9 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_e300c2 && !BR2_powerpc_e300c3 && !BR2_powerpc_e500mc && !BR2_powerpc_464 && !BR2_powerpc_464fp && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
                bool "gcc 4.3.x"
 
        config BR2_GCC_VERSION_4_4_X
-               depends on !BR2_avr32 && !BR2_cortex_a5 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
+               depends on !BR2_arc && !BR2_avr32 && !BR2_cortex_a5 && !BR2_cortex_a15 && !BR2_x86_atom && !BR2_powerpc_476 && !BR2_powerpc_476fp && !BR2_fa526 && !BR2_pj4
                bool "gcc 4.4.x"
 
        config BR2_GCC_VERSION_4_5_X
-               depends on !BR2_avr32 && !BR2_cortex_a15 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_fa526 && !BR2_pj4
+               depends on !BR2_arc && !BR2_avr32 && !BR2_cortex_a15 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_fa526 && !BR2_pj4
                select BR2_GCC_NEEDS_MPC
                bool "gcc 4.5.x"
 
        config BR2_GCC_VERSION_4_6_X
-               depends on !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4
+               depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4
                select BR2_GCC_NEEDS_MPC
                bool "gcc 4.6.x"
 
        config BR2_GCC_VERSION_4_7_X
-               depends on !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4
+               depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8 && !BR2_pj4
                select BR2_GCC_NEEDS_MPC
                bool "gcc 4.7.x"
 
        config BR2_GCC_VERSION_4_8_X
-               depends on !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
+               depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
                select BR2_GCC_NEEDS_MPC
                bool "gcc 4.8.x"
 
        config BR2_GCC_VERSION_SNAP
-               depends on !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
+               depends on !BR2_arc && !BR2_avr32 && !BR2_sparc_sparchfleon && !BR2_sparc_sparchfleonv8 && !BR2_sparc_sparcsfleon && !BR2_sparc_sparcsfleonv8
                select BR2_GCC_NEEDS_MPC
                bool "gcc snapshot"
 endchoice
@@ -74,6 +79,7 @@ config BR2_GCC_VERSION
        default "4.2.2-avr32-2.1.5" if BR2_GCC_VERSION_4_2_2_AVR32_2_1_5
        default "4.3.6"     if BR2_GCC_VERSION_4_3_X
        default "4.4.7"     if BR2_GCC_VERSION_4_4_X
+       default "4.4.7-arc" if BR2_GCC_VERSION_4_4_7_ARC
        default "4.5.4"     if BR2_GCC_VERSION_4_5_X
        default "4.6.4"     if BR2_GCC_VERSION_4_6_X
        default "4.7.3"     if BR2_GCC_VERSION_4_7_X
@@ -119,6 +125,6 @@ config BR2_GCC_ENABLE_TLS
 
 config BR2_GCC_ENABLE_OPENMP
        bool "Enable compiler OpenMP support"
-       depends on !BR2_PTHREADS_NONE && !BR2_avr32
+       depends on !BR2_PTHREADS_NONE && !BR2_avr32 && !BR2_arc
        help
          Enable OpenMP support for the compiler

diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk
index fc11ad45be8ada52c6cd930101b7ed5f30d31ac0..4c77c5c524a3512a532370174ffdbb3d4760973a 100644 (file)
--- a/toolchain/gcc/gcc-uclibc-4.x.mk
+++ b/toolchain/gcc/gcc-uclibc-4.x.mk
@@ -29,6 +29,8 @@ ifneq ($(GCC_SNAP_DATE),)
  GCC_SITE:=ftp://gcc.gnu.org/pub/gcc/snapshots/$(GCC_SNAP_DATE)/
 else ifeq ($(findstring avr32,$(GCC_VERSION)),avr32)
  GCC_SITE:=ftp://www.at91.com/pub/buildroot/
+else ifeq ($(findstring arc,$(GCC_VERSION)),arc)
+ GCC_SITE:=$(BR2_ARC_SITE)
 else
  GCC_SITE:=$(BR2_GNU_MIRROR:/=)/gcc/gcc-$(GCC_VERSION)
 endif