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# Add asm syscall definitions, needed for fstab/llseek.c in util-linux
Index: linux-2.6.19-rc1/usr/include/asm-arm/unistd.h
===================================================================
--- linux-2.6.19-rc1.orig/usr/include/asm-arm/unistd.h 2006-10-05 10:29:50.000000000 +0200
+++ linux-2.6.19-rc1/usr/include/asm-arm/unistd.h 2006-10-05 10:31:43.000000000 +0200
@@ -376,4 +376,183 @@
#undef __NR_ipc
#endif
+#include <linux/err.h>
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#ifndef __syscall
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __SYS_REG(name) register long __sysreg __asm__("r7") = __NR_##name;
+#define __SYS_REG_LIST(regs...) "r" (__sysreg) , ##regs
+#define __syscall(name) "swi\t0"
+#else
+#define __SYS_REG(name)
+#define __SYS_REG_LIST(regs...) regs
+#define __syscall(name) "swi\t" __sys1(__NR_##name) ""
+#endif
+#endif
+
+#define __syscall_return(type, res) \
+do { \
+ if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \
+ errno = -(res); \
+ res = -1; \
+ } \
+ return (type) (res); \
+} while (0)
+
+#define _syscall0(type,name) \
+type name(void) { \
+ __SYS_REG(name) \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST() \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+#define _syscall1(type,name,type1,arg1) \
+type name(type1 arg1) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
+type name(type1 arg1,type2 arg2) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __r1 __asm__("r1") = (long)arg2; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0), "r" (__r1) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+type name(type1 arg1,type2 arg2,type3 arg3) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __r1 __asm__("r1") = (long)arg2; \
+ register long __r2 __asm__("r2") = (long)arg3; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __r1 __asm__("r1") = (long)arg2; \
+ register long __r2 __asm__("r2") = (long)arg3; \
+ register long __r3 __asm__("r3") = (long)arg4; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), "r" (__r3) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+
+#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) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __r1 __asm__("r1") = (long)arg2; \
+ register long __r2 __asm__("r2") = (long)arg3; \
+ register long __r3 __asm__("r3") = (long)arg4; \
+ register long __r4 __asm__("r4") = (long)arg5; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), \
+ "r" (__r3), "r" (__r4) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+#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) { \
+ __SYS_REG(name) \
+ register long __r0 __asm__("r0") = (long)arg1; \
+ register long __r1 __asm__("r1") = (long)arg2; \
+ register long __r2 __asm__("r2") = (long)arg3; \
+ register long __r3 __asm__("r3") = (long)arg4; \
+ register long __r4 __asm__("r4") = (long)arg5; \
+ register long __r5 __asm__("r5") = (long)arg6; \
+ register long __res_r0 __asm__("r0"); \
+ long __res; \
+ __asm__ __volatile__ ( \
+ __syscall(name) \
+ : "=r" (__res_r0) \
+ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), \
+ "r" (__r3), "r" (__r4), "r" (__r5) ) \
+ : "memory" ); \
+ __res = __res_r0; \
+ __syscall_return(type,__res); \
+}
+
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+
+#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
+#define __ARCH_WANT_SYS_TIME
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_SYS_SOCKETCALL
+#endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+
#endif /* __ASM_ARM_UNISTD_H */
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