[libcpu] Add SConscript in libcpu.

libcpu/ppc/SConscript

@@ -0,0 +1,18 @@
+# RT-Thread building script for bridge
+
+import os
+from building import *
+
+Import('rtconfig')
+
+cwd   = GetCurrentDir()
+group = []
+list  = os.listdir(cwd)
+
+# add common code files
+group = group + SConscript(os.path.join(cwd, 'common', 'SConscript'))
+
+# cpu porting code files
+group = group + SConscript(os.path.join(cwd, rtconfig.CPU, 'SConscript'))
+
+Return('group')

libcpu/ppc/common/SConscript

@@ -0,0 +1,14 @@
+# RT-Thread building script for component
+
+from building import *
+
+Import('rtconfig')
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+CPPPATH = [cwd]
+ASFLAGS = ''
+
+group = DefineGroup('cpu', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
+
+Return('group')

libcpu/ppc/common/ptrace.h

@@ -21,20 +21,20 @@
 #define PPC_REG unsigned long
 
 struct pt_regs {
-	PPC_REG gpr[32];
-	PPC_REG nip;
-	PPC_REG msr;
-	PPC_REG orig_gpr3;	/* Used for restarting system calls */
-	PPC_REG ctr;
-	PPC_REG link;
-	PPC_REG xer;
-	PPC_REG ccr;
-	PPC_REG mq;		/* 601 only (not used at present) */
-				    /* Used on APUS to hold IPL value. */
-	PPC_REG trap;		/* Reason for being here */
-	PPC_REG dar;		/* Fault registers */
-	PPC_REG dsisr;
-	PPC_REG result;		/* Result of a system call */
+    PPC_REG gpr[32];
+    PPC_REG nip;
+    PPC_REG msr;
+    PPC_REG orig_gpr3;	/* Used for restarting system calls */
+    PPC_REG ctr;
+    PPC_REG link;
+    PPC_REG xer;
+    PPC_REG ccr;
+    PPC_REG mq;		/* 601 only (not used at present) */
+                    /* Used on APUS to hold IPL value. */
+    PPC_REG trap;		/* Reason for being here */
+    PPC_REG dar;		/* Fault registers */
+    PPC_REG dsisr;
+    PPC_REG result;		/* Result of a system call */
 }__attribute__((packed)) CELL_STACK_FRAME_t;
 #endif
 

libcpu/ppc/ppc405/SConscript

@@ -0,0 +1,14 @@
+# RT-Thread building script for component
+
+from building import *
+
+Import('rtconfig')
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp') + Glob('*_gcc.S')
+CPPPATH = [cwd]
+ASFLAGS = ''
+
+group = DefineGroup('cpu', src, depend = [''], CPPPATH = CPPPATH, ASFLAGS = ASFLAGS)
+
+Return('group')