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Add some more debug

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This commit is contained in:
Baptiste Wicht 2014-02-11 18:12:39 +01:00
parent 327e1244e4
commit ad7525c554
1 changed files with 18 additions and 0 deletions
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18
kernel/src/scheduler.cpp
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@ -348,6 +348,11 @@ bool allocate_user_memory(scheduler::process_t& process, size_t address, size_t
auto aligned_physical_memory = paging::page_aligned(physical_memory) ? physical_memory :
(physical_memory / paging::PAGE_SIZE + 1) * paging::PAGE_SIZE;
if(DEBUG_SCHEDULER){
k_printf("Map(p%u) virtual:%h into phys: %h\n", process.pid, first_page, aligned_physical_memory);
}
//4. Map physical allocated memory to the necessary virtual memory
if(!paging::user_map_pages(process, first_page, aligned_physical_memory, pages)){
if(DEBUG_SCHEDULER){
@ -376,6 +381,10 @@ bool create_paging(char* buffer, scheduler::process_t& process){
process.physical_cr3 = physical_allocator::allocate(1);
process.paging_size = paging::PAGE_SIZE;
if(DEBUG_SCHEDULER){
k_printf("Process %u cr3:%h\n", process.pid, process.physical_cr3);
}
clear_physical_memory(process.physical_cr3, 1);
//Map the kernel pages inside the user memory space
@ -418,6 +427,10 @@ bool create_paging(char* buffer, scheduler::process_t& process){
physical_pointer phys_ptr(segment.physical, pages);
if(DEBUG_SCHEDULER){
k_printf("Copy to physical:%h\n", segment.physical);
}
auto memory_start = phys_ptr.get() + left_padding;
//In the case of the BSS segment, the segment must be
@ -567,8 +580,13 @@ void scheduler::sbrk(size_t inc){
auto virtual_start = process.brk_start;
if(DEBUG_SCHEDULER){
k_printf("Map(p%u) virtual:%h into phys: %h\n", process.pid, virtual_start, physical);
}
//Map the memory inside the process memory space
if(!paging::user_map_pages(process, virtual_start, physical, pages)){
k_print_line("impossible");
physical_allocator::free(physical, pages);
return;
}