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@ -2,6 +2,7 @@
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#include "ecall.h"
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#include "sched.h"
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#include "io.h"
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#include "malloc.h"
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void create_processes_from_bin_table();
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@ -24,6 +25,40 @@ extern void init()
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void create_processes_from_bin_table()
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{
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char msg[28] = "found bin with id 0 at pos 0";
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ProcessControlBlock* next_process = processes;
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malloc_info info;
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info.allocate_memory_end = (void*) 0xFF0000;
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info.allocate_memory_start = (void*) 0;
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for (int i = 0; i < NUM_BINARIES; i++) {
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if (binary_table[i].binid == 0)
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break;
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// print message
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msg[18] = (char) binary_table[i].binid + '0';
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msg[27] = (char) i + '0';
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dbgln(msg, 28);
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info.allocate_memory_start = binary_table[i].bounds[1];
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}
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// initialize malloc
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malloc_init(&info);
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for (int i = 0; i < NUM_BINARIES; i++) {
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if (binary_table[i].binid == 0)
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break;
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next_process->status = PROC_RDY;
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next_process->pid = binary_table[i].binid;
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next_process->pc = binary_table[i].entrypoint;
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void* stack_top = malloc_stack(1<<12); // allocate 4Kib stack
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int stack_e = ((int) stack_top) - 32;
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next_process->regs[1] = stack_e; // set stack top, put 32 bytes of zeros there
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next_process++;
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dbgln("enabled process from table", 26);
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memset(0, (void*) stack_e, stack_top); // write zeros to stack
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}
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}
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