29 lines
662 B
C
29 lines
662 B
C
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#include "../include/syscall.h"
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#include "../include/isr.h"
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void syscall_handler(registers_t *regs){
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if (regs->eax >= SYSCALL_NUM)
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return;
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void *location = NULL;//syscalls[regs->eax];
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int ret;
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asm volatile (" \
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push %1; \
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push %2; \
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push %3; \
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push %4; \
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push %5; \
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call *%6; \
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pop %%ebx; \
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pop %%ebx; \
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pop %%ebx; \
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pop %%ebx; \
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pop %%ebx; \
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" : "=a" (ret) : "r" (regs->edi), "r" (regs->esi), "r" (regs->edx), "r" (regs->ecx), "r" (regs->ebx), "r" (location));
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regs->eax = ret;
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}
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void syscall_install(){
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register_interrupt_handler(0x80,syscall_handler);
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}
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