fusl/arch/x32/src/syscall_cp_fixup.c - Issue 1573973002: Add a "fork" of musl as //fusl.

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Side by Side Diff: fusl/arch/x32/src/syscall_cp_fixup.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 4 years, 11 months ago

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	1 #include <sys/syscall.h>

	2

	3 __attribute__((__visibility__("hidden")))

	4 long __syscall_cp_internal(volatile void*, long long, long long, long long, long long,

	5 long long, long long, long long);

	6

	7 struct __timespec { long long tv_sec; long tv_nsec; };

	8 struct __timespec_kernel { long long tv_sec; long long tv_nsec; };

	9 #define __tsc(X) ((struct __timespec*)(unsigned long)(X))

	10 #define __fixup(X) do { if(X) { \

	11 ts->tv_sec = __tsc(X)->tv_sec; \

	12 ts->tv_nsec = __tsc(X)->tv_nsec; \

	13 (X) = (unsigned long)ts; } } while(0)

	14

	15 __attribute__((__visibility__("hidden")))

	16 long __syscall_cp_asm (volatile void * foo, long long n, long long a1, long long a2, long long a3,

	17 long long a4, long long a5, long long a6)

	18 {

	19 struct __timespec_kernel ts[1];

	20 switch (n) {

	21 case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6:

	22 __fixup(a5);

	23 break;

	24 case SYS_futex:

	25 if((a2 & (~128 /* FUTEX_PRIVATE_FLAG /)) == 0 / FUTEX_WAIT */)

	26 __fixup(a4);

	27 break;

	28 case SYS_clock_nanosleep:

	29 case SYS_rt_sigtimedwait: case SYS_ppoll:

	30 __fixup(a3);

	31 break;

	32 case SYS_nanosleep:

	33 __fixup(a1);

	34 break;

	35 }

	36 return __syscall_cp_internal(foo, n, a1, a2, a3, a4, a5, a6);

	37 }

	38

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