add basic support for the Magicbox boards

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4672 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 223 insertions, 0 deletions

diff --git a/toolchain/uClibc/patches/130-ppc_gcc4_fix.patch b/toolchain/uClibc/patches/130-ppc_gcc4_fix.patch
new file mode 100644
index 0000000000..c5416f3790
--- /dev/null
+++ b/toolchain/uClibc/patches/130-ppc_gcc4_fix.patch
@@ -0,0 +1,223 @@
+diff -Nur uClibc-0.9.28/libc/sysdeps/linux/powerpc/bits/syscalls.h uClibc-0.9.28-owrt/libc/sysdeps/linux/powerpc/bits/syscalls.h
+--- uClibc-0.9.28/libc/sysdeps/linux/powerpc/bits/syscalls.h	2005-08-18 00:49:41.000000000 +0200
++++ uClibc-0.9.28-owrt/libc/sysdeps/linux/powerpc/bits/syscalls.h	2006-08-25 17:58:21.000000000 +0200
+@@ -5,67 +5,164 @@
+ # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+ #endif
+ 
++#include <errno.h>
++
+ /* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
+  * header files.  It also defines the traditional `SYS_<name>' macros for older
+  * programs.  */
+ #include <bits/sysnum.h>
+ 
+-
+-#define __STRINGIFY(s) __STRINGIFY2 (s)
+-#define __STRINGIFY2(s) #s
+-
+-#undef JUMPTARGET
+-#ifdef __PIC__
+-#define __MAKE_SYSCALL	__STRINGIFY(__uClibc_syscall@plt)
++/* Define a macro which expands inline into the wrapper code for a system
++   call. This use is for internal calls that do not need to handle errors
++   normally. It will never touch errno.
++   On powerpc a system call basically clobbers the same registers like a
++   function call, with the exception of LR (which is needed for the
++   "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
++   an error return status).  */
++
++# undef INLINE_SYSCALL
++#if 1
++# define INLINE_SYSCALL(name, nr, args...)				\
++  ({									\
++    INTERNAL_SYSCALL_DECL (sc_err);					\
++    long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args);	\
++    if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			\
++      {									\
++	__set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err));		\
++	sc_ret = -1L;							\
++      }									\
++    sc_ret;								\
++  })
+ #else
+-#define __MAKE_SYSCALL	__STRINGIFY(__uClibc_syscall)
++# define INLINE_SYSCALL(name, nr, args...)				\
++  ({									\
++    INTERNAL_SYSCALL_DECL (sc_err);					\
++    long int sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args);	\
++    if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err))			\
++      {									\
++	sc_ret = __syscall_error(INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err));\
++      }									\
++    sc_ret;								\
++  })
+ #endif
+ 
+-#define unified_syscall_body(name)			\
+-	__asm__ (					\
+-	".section \".text\"\n\t"			\
+-	".align 2\n\t"					\
+-	".globl " __STRINGIFY(name) "\n\t"		\
+-	".type " __STRINGIFY(name) ",@function\n\t"	\
+-	#name":\tli 0," __STRINGIFY(__NR_##name) "\n\t"	\
+-	"b " __MAKE_SYSCALL "\n\t"		\
+-	".size\t" __STRINGIFY(name) ",.""-" __STRINGIFY(name) "\n"	\
+-	)
++/* Define a macro which expands inline into the wrapper code for a system
++   call. This use is for internal calls that do not need to handle errors
++   normally. It will never touch errno.
++   On powerpc a system call basically clobbers the same registers like a
++   function call, with the exception of LR (which is needed for the
++   "sc; bnslr+" sequence) and CR (where only CR0.SO is clobbered to signal
++   an error return status).  */
++
++# undef INTERNAL_SYSCALL_DECL
++# define INTERNAL_SYSCALL_DECL(err) long int err
++
++# undef INTERNAL_SYSCALL
++# define INTERNAL_SYSCALL_NCS(name, err, nr, args...)			\
++  ({									\
++    register long int r0  __asm__ ("r0");				\
++    register long int r3  __asm__ ("r3");				\
++    register long int r4  __asm__ ("r4");				\
++    register long int r5  __asm__ ("r5");				\
++    register long int r6  __asm__ ("r6");				\
++    register long int r7  __asm__ ("r7");				\
++    register long int r8  __asm__ ("r8");				\
++    register long int r9  __asm__ ("r9");				\
++    register long int r10 __asm__ ("r10");				\
++    register long int r11 __asm__ ("r11");				\
++    register long int r12 __asm__ ("r12");				\
++    LOADARGS_##nr(name, args);						\
++    __asm__ __volatile__						\
++      ("sc   \n\t"							\
++       "mfcr %0"							\
++       : "=&r" (r0),							\
++	 "=&r" (r3), "=&r" (r4), "=&r" (r5),  "=&r" (r6),  "=&r" (r7),	\
++	 "=&r" (r8), "=&r" (r9), "=&r" (r10), "=&r" (r11), "=&r" (r12)	\
++       : ASM_INPUT_##nr							\
++       : "cr0", "ctr", "memory");					\
++    err = r0;								\
++    (int) r3;								\
++  })
++# define INTERNAL_SYSCALL(name, err, nr, args...) \
++  INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
++
++# undef INTERNAL_SYSCALL_ERROR_P
++# define INTERNAL_SYSCALL_ERROR_P(val, err) \
++  ((void) (val), __builtin_expect ((err) & (1 << 28), 0))
++
++# undef INTERNAL_SYSCALL_ERRNO
++# define INTERNAL_SYSCALL_ERRNO(val, err)     (val)
++
++# define LOADARGS_0(name, dummy) \
++	r0 = (long int)name
++# define LOADARGS_1(name, __arg1) \
++	LOADARGS_0(name, 0); \
++	r3 = (long int)__arg1
++# define LOADARGS_2(name, __arg1, __arg2) \
++	LOADARGS_1(name, __arg1); \
++	r4 = (long int)__arg2
++# define LOADARGS_3(name, __arg1, __arg2, __arg3) \
++	LOADARGS_2(name, __arg1, __arg2); \
++	r5 = (long int)__arg3
++# define LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4) \
++	LOADARGS_3(name, __arg1, __arg2, __arg3); \
++	r6 = (long int)__arg4
++# define LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5) \
++	LOADARGS_4(name, __arg1, __arg2, __arg3, __arg4); \
++	r7 = (long int)__arg5
++# define LOADARGS_6(name, __arg1, __arg2, __arg3, __arg4, __arg5, __arg6) \
++	LOADARGS_5(name, __arg1, __arg2, __arg3, __arg4, __arg5); \
++	r8 = (long int)__arg6
++
++# define ASM_INPUT_0 "0" (r0)
++# define ASM_INPUT_1 ASM_INPUT_0, "1" (r3)
++# define ASM_INPUT_2 ASM_INPUT_1, "2" (r4)
++# define ASM_INPUT_3 ASM_INPUT_2, "3" (r5)
++# define ASM_INPUT_4 ASM_INPUT_3, "4" (r6)
++# define ASM_INPUT_5 ASM_INPUT_4, "5" (r7)
++# define ASM_INPUT_6 ASM_INPUT_5, "6" (r8)
+ 
+ #undef _syscall0
+-#define _syscall0(type,name)				\
+-type name(void);					\
+-unified_syscall_body(name)
++#define _syscall0(type,name) \
++type name(void){ \
++  return (type) INLINE_SYSCALL(name, 0); \
++}
+ 
+ #undef _syscall1
+ #define _syscall1(type,name,type1,arg1) \
+-type name(type1 arg1);  \
+-unified_syscall_body(name)
++type name(type1 arg1){  \
++  return (type) INLINE_SYSCALL(name, 1, arg1); \
++}
+ 
+ #undef _syscall2
+ #define _syscall2(type,name,type1,arg1,type2,arg2) \
+-type name(type1 arg1, type2 arg2);      \
+-unified_syscall_body(name)
++type name(type1 arg1, type2 arg2){      \
++  return (type) INLINE_SYSCALL(name, 2, arg1, arg2); \
++}
+ 
+ #undef _syscall3
+ #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+-type name(type1 arg1, type2 arg2, type3 arg3);  \
+-unified_syscall_body(name)
++type name(type1 arg1, type2 arg2, type3 arg3){  \
++  return (type) INLINE_SYSCALL(name, 3, arg1, arg2, arg3); \
++}
+ 
+ #undef _syscall4
+ #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4);      \
+-unified_syscall_body(name)
++type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4){      \
++  return (type) INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4); \
++}
+ 
+ #undef _syscall5
+ #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5);  \
+-unified_syscall_body(name)
++type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5){  \
++  return (type) INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5); \
++}
+ 
+ #undef _syscall6
+ #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
+-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6);      \
+-unified_syscall_body(name)
++type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6){      \
++  return (type) INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6); \
++}
+ 
+ #endif /* _BITS_SYSCALLS_H */
+ 
+diff -urP uClibc-0.9.28/libc/sysdeps/linux/powerpc/sys/procfs.h uClibc-0.9.28-uint128/libc/sysdeps/linux/powerpc/sys/procfs.h
+--- uClibc-0.9.28/libc/sysdeps/linux/powerpc/sys/procfs.h	2005-08-18 00:49:41.000000000 +0200
++++ uClibc-0.9.28-uint128/libc/sysdeps/linux/powerpc/sys/procfs.h	2005-08-22 17:27:17.000000000 +0200
+@@ -42,15 +42,10 @@
+ typedef double elf_fpreg_t;
+ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+ 
+-/* gcc 3.1 and newer support __uint128_t.  */
+-#if !__GNUC_PREREQ(3,1)
+-typedef struct {
+-      unsigned long u[4];
+-} __attribute((aligned(16))) __uint128_t;
+-#endif
+-
+ /* Altivec registers */
+-typedef __uint128_t elf_vrreg_t;
++typedef struct {
++  unsigned int u[4];
++} __attribute((aligned (16))) elf_vrreg_t;
+ typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
+ 
+ struct elf_siginfo