Fixed Module loader
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parent
51af16b61e
commit
57aada680b
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@ -96,7 +96,7 @@ void _isr_handler(cpu_registers_t *regs){
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printf("Error Code: %x\n", regs->pfa);
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if (regs->int_no == 14){
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uint32_t cr2;
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asm volatile("mov %%cr3, %%eax;mov %0, %%eax": "=r"(cr2));
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asm volatile("mov %%cr2, %%eax;mov %0, %%eax": "=r"(cr2));
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printf("Address: %x", cr2);
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}
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for(;;);
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@ -9,7 +9,7 @@ char *flags[] = {"---", "X--", "-W-", "XW-", "--R", "X-R", "-WR", "XWR"};
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void *load_segment(program_entry_t entry, void *file_data, void *base_segment, uint32_t map_flags){
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// mlog("ELFLOAD", "p_addr: %d\n", MLOG_DEBUG, entry.paddr);
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printf("Type: %x, Flags: %s, Vaddr: %x, Offset: %x, Size: %x, Align: %x\n", entry.type, flags[entry.flags], entry.vaddr, entry.data_offset, entry.msize, entry.alignment);
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printf("Type: %x, Flags: %s, Vaddr: %x, Offset: %x, Size: %x, Align: %x\n", entry.type, flags[entry.flags], entry.paddr, entry.data_offset, entry.msize, entry.alignment);
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uint32_t *segment;
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uint32_t data_offset = ((elf_header_t *)file_data)->entry_offset;
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printf("Base: %x\n", base_segment);
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@ -23,12 +23,12 @@ void *load_segment(program_entry_t entry, void *file_data, void *base_segment, u
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segment = base_segment + (entry.vaddr & 0xfffff000);
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uint32_t count = 1;
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count += ((entry.vaddr+entry.msize) - entry.vaddr) ? 1 : 0;
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count += entry.msize/4096;
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printf("count: %x\n", count);
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count += entry.msize/4096 + 1;
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// printf("count: %x\n", count);
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// for (;;);
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for(uint32_t i = 0; i < count; i++){
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map(segment + (i << 12), (void *)pm_alloc(), PT_PRESENT | map_flags);
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printf("Mapping : %x\n", segment + (i << 12));
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map(segment + (i << 12)/4, (void *)pm_alloc(), PT_PRESENT | map_flags);
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// printf("Mapping : %x\n", segment + (i << 12)/4);
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}
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}
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for(uint32_t i = 0; i < entry.fsize/sizeof(uint32_t) + 1; i++){
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@ -65,10 +65,12 @@ void *load_elf(void *file_data, uint32_t map_flags){
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base_segment = load_segment(program_header[i], file_data, base_segment, map_flags);
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}
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// void (*vt)(void) = base_segment;
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uint32_t (*vt)(uint32_t) = base_segment + 0x1000;
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void (*vt)(uint32_t) = base_segment + header->entry_offset;
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// printf("%x", *vt);
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uint32_t i = (*vt)(0);
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printf("%x\n", i);
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for(;;);
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(*vt)(0);
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// printf("%x\n", i);
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// for(;;);
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// (*vt)();
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printf(":D\n");
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return 0;
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}
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@ -8,6 +8,7 @@
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void init_modules(kernel_info_t *kernel_info){
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mlog(MODULE_NAME, "Initializing Boot-Time Modules\n", MLOG_PRINT);
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kernel_module_t *module = kernel_info->loaded_modules;
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uint32_t i = 0;
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while(module){
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if(!module->ptr){
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continue;
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@ -15,8 +16,8 @@ void init_modules(kernel_info_t *kernel_info){
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// printf("Module Type: %x, Module Size (Bytes): %x, Ptr: %x\n", module->type, module->size, module->ptr);
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load_elf(module->ptr, 0);
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mlog(MODULE_NAME, "Loaded module of type %x\n", MLOG_PRINT, module->type);
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module = module->link;
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// module->type |= 0x8000;//set present flag in type
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module->type |= MODULE_PRESENT;
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module = module->link;
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}
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}
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@ -3,7 +3,7 @@
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KOS_MAPI_FP api;
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uint32_t init(KOS_MAPI_FP module_api){
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void init(KOS_MAPI_FP module_api){
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uint16_t *t = (void *)0xb8000;
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*t = 0x0f41;
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api = module_api;
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@ -11,5 +11,5 @@ uint32_t init(KOS_MAPI_FP module_api){
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// (*t)++;
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// // asm volatile( " " );
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// }
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return &api;
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return;
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}
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@ -1,11 +1,16 @@
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#include <stdint.h>
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#include "modlib.h"
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void init(){
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KOS_MAPI_FP api;
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void init(KOS_MAPI_FP module_api){
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uint16_t *t = (void *)0xb8002;
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*t = 0x0f41;
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// for(int i = 0; i < 1000; i++){
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// (*t)++;
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// // asm volatile( " " );
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// }
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for(;;);
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// t = 0x50000000;
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// *t = 1;
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return;
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}
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