Adding support for ARM7 group of processors. Tested on a Raspberry Pi 2.

etc/bashrc

@@ -288,6 +288,16 @@ Linux)
         export WM_LDFLAGS='-m64'
         ;;
 
+    armv7l)
+        WM_ARCH=linuxARM7
+        export WM_COMPILER_LIB_ARCH=32
+        export WM_CC='gcc'
+        export WM_CXX='g++'
+        export WM_CFLAGS='-fPIC -mfloat-abi=hard'
+        export WM_CXXFLAGS='-fPIC -mfloat-abi=hard'
+        export WM_LDFLAGS='-mfloat-abi=hard'
+        ;;
+
     *)
         echo Unknown processor type `uname -m` for Linux
         ;;

etc/cshrc

@@ -228,6 +228,16 @@ case Linux:
         setenv WM_LDFLAGS '-m64'
         breaksw
 
+    armv7l)
+        setenv WM_ARCH linuxARM7
+        setenv WM_COMPILER_LIB_ARCH 32
+        setenv WM_CC 'gcc'
+        setenv WM_CXX 'g++'
+        setenv WM_CFLAGS '-fPIC -mfloat-abi=hard'
+        setenv WM_CXXFLAGS '-fPIC -mfloat-abi=hard'
+        setenv WM_LDFLAGS '-mfloat-abi=hard'
+        ;;
+
     default:
         echo Unknown processor type `uname -m` for Linux
         breaksw

src/OSspecific/POSIX/signals/sigFpe.H

@@ -46,7 +46,7 @@ SourceFiles
 #include "OSspecific.H"
 #include <signal.h>
 
-#if defined(linux) || defined(linuxAMD64) || defined(linuxIA64)
+#if defined(linux) || defined(linuxAMD64) || defined(linuxIA64) || defined(linuxARM7)
 #    define LINUX
 #endif
 

src/foam/containers/Lists/UList/UListI.H

@@ -90,7 +90,7 @@ inline void Foam::UList<T>::checkStart(const label start) const
     if (start<0 || (start && start>=size_))
     {
         FatalErrorIn("UList<T>::checkStart(const label)")
-            << "start " << start << " out of range 0 ... " << max(size_-1, 0)
+	    << "start " << start << " out of range 0 ... " << max(label(size_-1), label(0))
             << abort(FatalError);
     }
 }

wmake/rules/linuxARM7Gcc/c

@@ -0,0 +1,16 @@
+.SUFFIXES: .c .h
+
+cWARN        = -Wall
+
+cc          = gcc
+
+include $(RULES)/c$(WM_COMPILE_OPTION)
+
+cFLAGS      = $(GFLAGS) $(cWARN) $(cOPT) $(cDBUG) $(LIB_HEADER_DIRS) -fPIC
+
+ctoo        = $(WM_SCHEDULER) $(cc) $(cFLAGS) -c $$SOURCE -o $@
+
+LINK_LIBS   = $(cDBUG)
+
+LINKLIBSO   = $(cc) -shared
+LINKEXE     = $(cc) -Xlinker --add-needed -Xlinker -z -Xlinker nodefs

wmake/rules/linuxARM7Gcc/c++

@@ -0,0 +1,21 @@
+.SUFFIXES: .C .cxx .cc .cpp
+
+c++WARN     = -Wall -Wextra -Wno-unused-parameter -Wold-style-cast
+
+CC          = g++
+
+include $(RULES)/c++$(WM_COMPILE_OPTION)
+
+ptFLAGS     = -DNoRepository -ftemplate-depth=100
+
+c++FLAGS    = $(GFLAGS) $(c++WARN) $(c++OPT) $(c++DBUG) $(ptFLAGS) $(LIB_HEADER_DIRS) -fPIC
+
+Ctoo        = $(WM_SCHEDULER) $(CC) $(c++FLAGS) -c $$SOURCE -o $@
+cxxtoo      = $(Ctoo)
+cctoo       = $(Ctoo)
+cpptoo      = $(Ctoo)
+
+LINK_LIBS   = $(c++DBUG)
+
+LINKLIBSO   = $(CC) $(c++FLAGS) -shared -Xlinker --add-needed -Xlinker --no-as-needed
+LINKEXE     = $(CC) $(c++FLAGS) -Xlinker --add-needed -Xlinker --no-as-needed

wmake/rules/linuxARM7Gcc/c++Debug

@@ -0,0 +1,2 @@
+c++DBUG    = -ggdb3 -DFULLDEBUG
+c++OPT      = -O0 -fdefault-inline

wmake/rules/linuxARM7Gcc/c++Opt

@@ -0,0 +1,2 @@
+c++DBUG     =
+c++OPT      = -O3 -floop-optimize -falign-loops -falign-labels -falign-functions -falign-jumps -fprefetch-loop-arrays -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard

wmake/rules/linuxARM7Gcc/c++Prof

@@ -0,0 +1,2 @@
+c++DBUG    = -pg
+c++OPT     = -O2

wmake/rules/linuxARM7Gcc/cDebug

@@ -0,0 +1,2 @@
+cDBUG       = -ggdb -DFULLDEBUG
+cOPT        = -O1 -fdefault-inline -finline-functions

wmake/rules/linuxARM7Gcc/cOpt

@@ -0,0 +1,2 @@
+cDBUG       =
+cOPT        = -O3 -floop-optimize -falign-loops -falign-labels -falign-functions -falign-jumps -fprefetch-loop-arrays -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard

wmake/rules/linuxARM7Gcc/cProf

@@ -0,0 +1,2 @@
+cDBUG       = -pg
+cOPT        = -O2

wmake/rules/linuxARM7Gcc/general

@@ -0,0 +1,9 @@
+CPP        = cpp -traditional-cpp $(GFLAGS)
+LD         = ld
+
+PROJECT_LIBS = -l$(WM_PROJECT) -ldl
+
+include $(GENERAL_RULES)/standard
+
+include $(RULES)/c
+include $(RULES)/c++

wmake/rules/linuxARM7Gcc/mplibOPENMPI

@@ -0,0 +1,3 @@
+PFLAGS     = -DOMPI_SKIP_MPICXX
+PINC       = -I$(MPI_ARCH_PATH)/include
+PLIBS      = -L$(MPI_ARCH_PATH)/lib -lmpi

wmake/rules/linuxARM7Gcc/mplibSYSTEMOPENMPI

@@ -0,0 +1,3 @@
+PFLAGS     = -DOMPI_SKIP_MPICXX
+PINC       = $(OPENMPI_COMPILE_FLAGS)
+PLIBS      = -L$(MPI_ARCH_PATH)/lib/openmpi -lmpi