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24 lines
775 B
C
24 lines
775 B
C
#include "syscall.h"
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#include <stdio.h>
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#include <errno.h>
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long syscall_invoke(uint64_t syscall_id, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5)
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{
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uint64_t __err_code;
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__asm__ __volatile__(
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"movq %2, %%rdi \n\t"
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"movq %3, %%rsi \n\t"
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"movq %4, %%rdx \n\t"
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"movq %5, %%r10 \n\t"
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"movq %6, %%r8 \n\t"
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"movq %7, %%r9 \n\t"
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"int $0x80 \n\t"
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"movq %%rax, %0 \n\t"
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:"=a"(__err_code)
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: "a"(syscall_id), "m"(arg0), "m"(arg1), "m"(arg2), "m"(arg3), "m"(arg4), "m"(arg5)
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: "memory", "r8", "r9", "r10", "r11", "rcx", "rdx", "rdi", "rsi");
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// printf("errcode = %#018lx\n", __err_code);
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errno = __err_code;
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return __err_code;
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}
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