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// MIT License, Copyright (c) 2020 Marvin Borner
#include <fs.h>
#include <load.h>
#include <mem.h>
#include <mm.h>
#include <str.h>
#define PROC_STACK_SIZE 0x4000
void proc_load(struct proc *proc, void *data)
{
u32 stack;
memory_alloc(proc->page_dir, PROC_STACK_SIZE, MEMORY_CLEAR, &stack);
u32 ptr = stack + PROC_STACK_SIZE - 1;
proc->regs.ebp = (u32)ptr;
proc->regs.useresp = (u32)ptr;
proc->regs.eip = (u32)data;
proc->entry = (u32)data;
}
int bin_load(const char *path, struct proc *proc)
{
struct stat s = { 0 };
vfs_stat(path, &s);
u32 data;
memory_alloc(proc->page_dir, PAGE_ALIGN_UP(s.size), MEMORY_CLEAR, &data);
if (!vfs_read(path, (void *)data, 0, s.size))
return 1;
strcpy(proc->name, path);
proc_load(proc, (void *)data);
return 0;
}
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