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@@ -140,6 +140,151 @@ __asm__ __volatile__ ("trapa %1" \
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__syscall_return(type,__sc0); \
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}
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+#define SYSCALL_INST_STR0 "trapa #0x10\n\t"
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+#define SYSCALL_INST_STR1 "trapa #0x11\n\t"
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+#define SYSCALL_INST_STR2 "trapa #0x12\n\t"
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+#define SYSCALL_INST_STR3 "trapa #0x13\n\t"
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+#define SYSCALL_INST_STR4 "trapa #0x14\n\t"
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+#define SYSCALL_INST_STR5 "trapa #0x15\n\t"
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+#define SYSCALL_INST_STR6 "trapa #0x16\n\t"
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+
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+# ifdef NEED_SYSCALL_INST_PAD
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+# define SYSCALL_INST_PAD "\
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+ or r0,r0; or r0,r0; or r0,r0; or r0,r0; or r0,r0"
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+# else
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+# define SYSCALL_INST_PAD
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+# endif
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+
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+#define ASMFMT_0
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+#define ASMFMT_1 \
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+ , "r" (r4)
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+#define ASMFMT_2 \
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+ , "r" (r4), "r" (r5)
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+#define ASMFMT_3 \
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+ , "r" (r4), "r" (r5), "r" (r6)
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+#define ASMFMT_4 \
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+ , "r" (r4), "r" (r5), "r" (r6), "r" (r7)
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+#define ASMFMT_5 \
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+ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0)
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+#define ASMFMT_6 \
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+ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0), "r" (r1)
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+#define ASMFMT_7 \
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+ , "r" (r4), "r" (r5), "r" (r6), "r" (r7), "0" (r0), "r" (r1), "r" (r2)
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+
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+#define SUBSTITUTE_ARGS_0()
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+#define SUBSTITUTE_ARGS_1(arg1) \
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+ long int _arg1 = (long int) (arg1); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1)
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+#define SUBSTITUTE_ARGS_2(arg1, arg2) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2)
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+#define SUBSTITUTE_ARGS_3(arg1, arg2, arg3) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ long int _arg3 = (long int) (arg3); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \
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+ register long int r6 __asm__ ("%r6") = (long int) (_arg3)
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+#define SUBSTITUTE_ARGS_4(arg1, arg2, arg3, arg4) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ long int _arg3 = (long int) (arg3); \
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+ long int _arg4 = (long int) (arg4); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \
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+ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \
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+ register long int r7 __asm__ ("%r7") = (long int) (_arg4)
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+#define SUBSTITUTE_ARGS_5(arg1, arg2, arg3, arg4, arg5) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ long int _arg3 = (long int) (arg3); \
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+ long int _arg4 = (long int) (arg4); \
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+ long int _arg5 = (long int) (arg5); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \
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+ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \
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+ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \
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+ register long int r0 __asm__ ("%r0") = (long int) (_arg5)
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+#define SUBSTITUTE_ARGS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ long int _arg3 = (long int) (arg3); \
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+ long int _arg4 = (long int) (arg4); \
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+ long int _arg5 = (long int) (arg5); \
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+ long int _arg6 = (long int) (arg6); \
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+ register long int r4 __asm__ ("%r4") = (long int)(_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \
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+ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \
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+ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \
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+ register long int r0 __asm__ ("%r0") = (long int) (_arg5); \
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+ register long int r1 __asm__ ("%r1") = (long int) (_arg6)
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+#define SUBSTITUTE_ARGS_7(arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
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+ long int _arg1 = (long int) (arg1); \
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+ long int _arg2 = (long int) (arg2); \
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+ long int _arg3 = (long int) (arg3); \
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+ long int _arg4 = (long int) (arg4); \
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+ long int _arg5 = (long int) (arg5); \
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+ long int _arg6 = (long int) (arg6); \
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+ long int _arg7 = (long int) (arg7); \
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+ register long int r4 __asm__ ("%r4") = (long int) (_arg1); \
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+ register long int r5 __asm__ ("%r5") = (long int) (_arg2); \
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+ register long int r6 __asm__ ("%r6") = (long int) (_arg3); \
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+ register long int r7 __asm__ ("%r7") = (long int) (_arg4); \
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+ register long int r0 __asm__ ("%r0") = (long int) (_arg5); \
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+ register long int r1 __asm__ ("%r1") = (long int) (_arg6); \
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+ register long int r2 __asm__ ("%r2") = (long int) (_arg7)
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+
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+#undef INLINE_SYSCALL
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+#define INLINE_SYSCALL(name, nr, args...) \
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+ ({ \
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+ unsigned int __resultvar = INTERNAL_SYSCALL (name, , nr, args); \
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+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (__resultvar, ), 0)) \
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+ { \
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+ __set_errno (INTERNAL_SYSCALL_ERRNO (__resultvar, )); \
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+ __resultvar = 0xffffffff; \
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+ } \
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+ (int) __resultvar; })
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+
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+#undef INTERNAL_SYSCALL
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+#define INTERNAL_SYSCALL(name, err, nr, args...) \
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+ ({ \
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+ unsigned long int resultvar; \
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+ register long int r3 __asm__ ("%r3") = SYS_ify (name); \
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+ SUBSTITUTE_ARGS_##nr(args); \
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+ \
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+ __asm__ volatile (SYSCALL_INST_STR##nr SYSCALL_INST_PAD \
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+ : "=z" (resultvar) \
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+ : "r" (r3) ASMFMT_##nr \
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+ : "memory"); \
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+ \
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+ (int) resultvar; })
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+
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+/* The _NCS variant allows non-constant syscall numbers. */
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+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
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+ ({ \
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+ unsigned long int resultvar; \
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+ register long int r3 __asm__ ("%r3") = (name); \
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+ SUBSTITUTE_ARGS_##nr(args); \
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+ \
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+ __asm__ volatile (SYSCALL_INST_STR##nr SYSCALL_INST_PAD \
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+ : "=z" (resultvar) \
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+ : "r" (r3) ASMFMT_##nr \
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+ : "memory"); \
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+ \
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+ (int) resultvar; })
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+
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+#undef INTERNAL_SYSCALL_DECL
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+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
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+
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+#undef INTERNAL_SYSCALL_ERROR_P
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+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
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+ ((unsigned int) (val) >= 0xfffff001u)
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+
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+#undef INTERNAL_SYSCALL_ERRNO
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+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
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+
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#endif /* __ASSEMBLER__ */
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#endif /* _BITS_SYSCALLS_H */
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