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More more stuff in arch subdir

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This commit is contained in:
Mathieu Maret 2020-04-29 23:07:01 +02:00
parent 9e2a1a73a9
commit c65c7bb7b0
9 changed files with 67 additions and 50 deletions
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2
Makefile
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@ -13,7 +13,7 @@ SUBDIRS := core drivers tests arch/$(ARCH)
CPPFLAGS += $(foreach dir, $(SUBDIRS), -I$(dir))
asmsrc=$(wildcard *.asm)
asmsrc=$(wildcard arch/$(ARCH)/boot/*.asm)
asmobj=$(asmsrc:%.asm=%.o)
csrc=$(shell find $(SUBDIRS) -type f -name "*.c")# $(wildcard *.c)
cobj=$(csrc:%.c=%.o) arch/$(ARCH)/cpu_context_switch.o arch/$(ARCH)/irq_pit.o

0
boot.asm → arch/x86/boot/boot.asm
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0
boot.s → arch/x86/boot/boot.s
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47
arch/x86/exception.c
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@ -21,3 +21,50 @@ int exceptionSetRoutine(int exception, exception_handler handler)
restore_IRQs(flags);
return 0;
}
int exceptionSetup()
{
exceptionSetRoutine(EXCEPTION_DOUBLE_FAULT, ACCESS_INTERRUPT(EXCEPTION_DOUBLE_FAULT));
exceptionSetRoutine(EXCEPTION_DIVIDE_ZERO, ACCESS_INTERRUPT(EXCEPTION_DIVIDE_ZERO));
// Used by the DBG
// exceptionSetRoutine(EXCEPTION_DEBUG, ACCESS_INTERRUPT(EXCEPTION_DEBUG));
exceptionSetRoutine(EXCEPTION_NMI, ACCESS_INTERRUPT(EXCEPTION_NMI));
exceptionSetRoutine(EXCEPTION_BREAKPOINT, ACCESS_INTERRUPT(EXCEPTION_BREAKPOINT));
exceptionSetRoutine(EXCEPTION_OVERFLOW, ACCESS_INTERRUPT(EXCEPTION_OVERFLOW));
exceptionSetRoutine(EXCEPTION_BOUND_RANGE_EXCEEDED,
ACCESS_INTERRUPT(EXCEPTION_BOUND_RANGE_EXCEEDED));
exceptionSetRoutine(EXCEPTION_INVALID_OPCODE, ACCESS_INTERRUPT(EXCEPTION_INVALID_OPCODE));
exceptionSetRoutine(EXCEPTION_DEVICE_NOT_AVAILABLE,
ACCESS_INTERRUPT(EXCEPTION_DEVICE_NOT_AVAILABLE));
exceptionSetRoutine(EXCEPTION_COPRO_OVERRUN, ACCESS_INTERRUPT(EXCEPTION_COPRO_OVERRUN));
exceptionSetRoutine(EXCEPTION_INVALID_TSS, ACCESS_INTERRUPT(EXCEPTION_INVALID_TSS));
exceptionSetRoutine(EXCEPTION_SEGMENT_NOT_PRESENT,
ACCESS_INTERRUPT(EXCEPTION_SEGMENT_NOT_PRESENT));
exceptionSetRoutine(EXCEPTION_STACK_SEGMENT_FAULT,
ACCESS_INTERRUPT(EXCEPTION_STACK_SEGMENT_FAULT));
exceptionSetRoutine(EXCEPTION_GENERAL_PROTECTION_FAULT,
ACCESS_INTERRUPT(EXCEPTION_GENERAL_PROTECTION_FAULT));
exceptionSetRoutine(EXCEPTION_PAGE_FAULT, ACCESS_INTERRUPT(EXCEPTION_PAGE_FAULT));
exceptionSetRoutine(EXCEPTION_RESERVED_1, ACCESS_INTERRUPT(EXCEPTION_RESERVED_1));
exceptionSetRoutine(EXCEPTION_X87_FP_EXCEPTION,
ACCESS_INTERRUPT(EXCEPTION_X87_FP_EXCEPTION));
exceptionSetRoutine(EXCEPTION_ALIGNMENT_CHECK,
ACCESS_INTERRUPT(EXCEPTION_ALIGNMENT_CHECK));
exceptionSetRoutine(EXCEPTION_MACHINE_CHECK, ACCESS_INTERRUPT(EXCEPTION_MACHINE_CHECK));
exceptionSetRoutine(EXCEPTION_SIMD_FP, ACCESS_INTERRUPT(EXCEPTION_SIMD_FP));
exceptionSetRoutine(EXCEPTION_VIRTUALIZATION, ACCESS_INTERRUPT(EXCEPTION_VIRTUALIZATION));
exceptionSetRoutine(EXCEPTION_RESERVED_2, ACCESS_INTERRUPT(EXCEPTION_RESERVED_2));
exceptionSetRoutine(EXCEPTION_RESERVED_3, ACCESS_INTERRUPT(EXCEPTION_RESERVED_3));
exceptionSetRoutine(EXCEPTION_RESERVED_4, ACCESS_INTERRUPT(EXCEPTION_RESERVED_4));
exceptionSetRoutine(EXCEPTION_RESERVED_5, ACCESS_INTERRUPT(EXCEPTION_RESERVED_5));
exceptionSetRoutine(EXCEPTION_RESERVED_6, ACCESS_INTERRUPT(EXCEPTION_RESERVED_6));
exceptionSetRoutine(EXCEPTION_RESERVED_7, ACCESS_INTERRUPT(EXCEPTION_RESERVED_7));
exceptionSetRoutine(EXCEPTION_RESERVED_8, ACCESS_INTERRUPT(EXCEPTION_RESERVED_8));
exceptionSetRoutine(EXCEPTION_RESERVED_9, ACCESS_INTERRUPT(EXCEPTION_RESERVED_9));
exceptionSetRoutine(EXCEPTION_RESERVED_10, ACCESS_INTERRUPT(EXCEPTION_RESERVED_10));
exceptionSetRoutine(EXCEPTION_SECURITY, ACCESS_INTERRUPT(EXCEPTION_SECURITY));
exceptionSetRoutine(EXCEPTION_RESERVED_11, ACCESS_INTERRUPT(EXCEPTION_RESERVED_11));
exceptionSetRoutine(EXCEPTION_PAGE_FAULT, pagefault_handler);
return 0;
}

1
arch/x86/exception.h
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@ -43,3 +43,4 @@
typedef void (*exception_handler)(struct interrupt_frame *frame, ulong error_code);
int exceptionSetRoutine(int exception, exception_handler handler);
int exceptionSetup();

14
arch/x86/processor.h Normal file
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@ -0,0 +1,14 @@
#pragma once
static void cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{
/* ecx is often an input as well as an output. */
asm volatile("cpuid"
: "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),
"=d" (*edx)
: "0" (*eax), "2" (*ecx)
: "memory");
}

2
core/alloc.c
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@ -16,7 +16,7 @@ int allocSlab(struct slabDesc **desc, size_t size, int self_containing);
int allocSlabEntry(struct slabEntry **desc, size_t size, int selfContained);
static int formatPage(struct slabEntry *desc, size_t size, int selfContained);
int allocInit(void)
int allocSetup(void)
{
uint start = log2(sizeof(void *));
list_init(slub);

2
core/alloc.h
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@ -16,7 +16,7 @@ struct slabDesc {
struct slabDesc *next;
struct slabDesc *prev;
};
int allocInit(void);
int allocSetup(void);
int allocBookSlab(size_t size, int selfContained);
void *malloc(size_t size);

49
core/main.c
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@ -22,10 +22,6 @@
#include "vga.h"
#define CHECK_FLAG(flags, bit) ((flags) & (1 << (bit)))
void cpuid(int code, uint32_t *a, uint32_t *d)
{
asm volatile("cpuid" : "=a"(*a), "=d"(*d) : "0"(code) : "ebx", "ecx");
}
void idleThread(void *arg)
{
@ -110,54 +106,13 @@ void kmain(unsigned long magic, unsigned long addr)
irqSetRoutine(IRQ_KEYBOARD, keyboard_handler);
printf("Enabling HW interrupts\n");
exceptionSetRoutine(EXCEPTION_DOUBLE_FAULT, ACCESS_INTERRUPT(EXCEPTION_DOUBLE_FAULT));
exceptionSetRoutine(EXCEPTION_DIVIDE_ZERO, ACCESS_INTERRUPT(EXCEPTION_DIVIDE_ZERO));
// Used by the DBG
// exceptionSetRoutine(EXCEPTION_DEBUG, ACCESS_INTERRUPT(EXCEPTION_DEBUG));
exceptionSetRoutine(EXCEPTION_NMI, ACCESS_INTERRUPT(EXCEPTION_NMI));
exceptionSetRoutine(EXCEPTION_BREAKPOINT, ACCESS_INTERRUPT(EXCEPTION_BREAKPOINT));
exceptionSetRoutine(EXCEPTION_OVERFLOW, ACCESS_INTERRUPT(EXCEPTION_OVERFLOW));
exceptionSetRoutine(EXCEPTION_BOUND_RANGE_EXCEEDED,
ACCESS_INTERRUPT(EXCEPTION_BOUND_RANGE_EXCEEDED));
exceptionSetRoutine(EXCEPTION_INVALID_OPCODE, ACCESS_INTERRUPT(EXCEPTION_INVALID_OPCODE));
exceptionSetRoutine(EXCEPTION_DEVICE_NOT_AVAILABLE,
ACCESS_INTERRUPT(EXCEPTION_DEVICE_NOT_AVAILABLE));
exceptionSetRoutine(EXCEPTION_COPRO_OVERRUN, ACCESS_INTERRUPT(EXCEPTION_COPRO_OVERRUN));
exceptionSetRoutine(EXCEPTION_INVALID_TSS, ACCESS_INTERRUPT(EXCEPTION_INVALID_TSS));
exceptionSetRoutine(EXCEPTION_SEGMENT_NOT_PRESENT,
ACCESS_INTERRUPT(EXCEPTION_SEGMENT_NOT_PRESENT));
exceptionSetRoutine(EXCEPTION_STACK_SEGMENT_FAULT,
ACCESS_INTERRUPT(EXCEPTION_STACK_SEGMENT_FAULT));
exceptionSetRoutine(EXCEPTION_GENERAL_PROTECTION_FAULT,
ACCESS_INTERRUPT(EXCEPTION_GENERAL_PROTECTION_FAULT));
exceptionSetRoutine(EXCEPTION_PAGE_FAULT, ACCESS_INTERRUPT(EXCEPTION_PAGE_FAULT));
exceptionSetRoutine(EXCEPTION_RESERVED_1, ACCESS_INTERRUPT(EXCEPTION_RESERVED_1));
exceptionSetRoutine(EXCEPTION_X87_FP_EXCEPTION,
ACCESS_INTERRUPT(EXCEPTION_X87_FP_EXCEPTION));
exceptionSetRoutine(EXCEPTION_ALIGNMENT_CHECK,
ACCESS_INTERRUPT(EXCEPTION_ALIGNMENT_CHECK));
exceptionSetRoutine(EXCEPTION_MACHINE_CHECK, ACCESS_INTERRUPT(EXCEPTION_MACHINE_CHECK));
exceptionSetRoutine(EXCEPTION_SIMD_FP, ACCESS_INTERRUPT(EXCEPTION_SIMD_FP));
exceptionSetRoutine(EXCEPTION_VIRTUALIZATION, ACCESS_INTERRUPT(EXCEPTION_VIRTUALIZATION));
exceptionSetRoutine(EXCEPTION_RESERVED_2, ACCESS_INTERRUPT(EXCEPTION_RESERVED_2));
exceptionSetRoutine(EXCEPTION_RESERVED_3, ACCESS_INTERRUPT(EXCEPTION_RESERVED_3));
exceptionSetRoutine(EXCEPTION_RESERVED_4, ACCESS_INTERRUPT(EXCEPTION_RESERVED_4));
exceptionSetRoutine(EXCEPTION_RESERVED_5, ACCESS_INTERRUPT(EXCEPTION_RESERVED_5));
exceptionSetRoutine(EXCEPTION_RESERVED_6, ACCESS_INTERRUPT(EXCEPTION_RESERVED_6));
exceptionSetRoutine(EXCEPTION_RESERVED_7, ACCESS_INTERRUPT(EXCEPTION_RESERVED_7));
exceptionSetRoutine(EXCEPTION_RESERVED_8, ACCESS_INTERRUPT(EXCEPTION_RESERVED_8));
exceptionSetRoutine(EXCEPTION_RESERVED_9, ACCESS_INTERRUPT(EXCEPTION_RESERVED_9));
exceptionSetRoutine(EXCEPTION_RESERVED_10, ACCESS_INTERRUPT(EXCEPTION_RESERVED_10));
exceptionSetRoutine(EXCEPTION_SECURITY, ACCESS_INTERRUPT(EXCEPTION_SECURITY));
exceptionSetRoutine(EXCEPTION_RESERVED_11, ACCESS_INTERRUPT(EXCEPTION_RESERVED_11));
exceptionSetRoutine(EXCEPTION_PAGE_FAULT, pagefault_handler);
// Enabling the HW interrupts
exceptionSetup();
asm volatile("sti\n");
printf("Setting up Serial link (115200)\n");
serialSetup(115200);
allocInit();
allocSetup();
kthreadSetup(_stack_bottom, (_stack_top - _stack_bottom + 1));
kthreadCreate("idle", idleThread, NULL);
irqSetRoutine(IRQ_TIMER, pit_handler);