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Add logging framework

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This commit is contained in:
Justin C. Miller
2018-04-28 19:18:53 -07:00
parent 358837ed69
commit b3e49590a7
10 changed files with 274 additions and 174 deletions
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147
src/kernel/interrupts.cpp
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@@ -4,6 +4,7 @@
#include "kutil/memory.h"
#include "console.h"
#include "interrupts.h"
#include "log.h"
enum class gdt_flags : uint8_t
{
@@ -141,6 +142,9 @@ interrupts_init()
#undef ISR
idt_write();
log::info(logs::interrupt, "Interrupts enabled.");
gdt_dump(g_gdtr);
idt_dump(g_idtr);
}
struct registers
@@ -151,17 +155,16 @@ struct registers
uint64_t rip, cs, eflags, user_esp, ss;
};
#define print_reg(name, value) \
cons->puts(" " name ": "); \
cons->put_hex((value)); \
cons->puts("\n");
#define print_reg(name, value) cons->printf(" %s: %lx\n", name, (value));
void
isr_handler(registers regs)
{
console *cons = console::get();
cons->puts("received ISR interrupt:\n");
cons->set_color(9);
cons->puts("\nReceived ISR interrupt:\n");
cons->set_color();
uint64_t cr2 = 0;
__asm__ __volatile__ ("mov %%cr2, %0" : "=r"(cr2));
@@ -169,7 +172,7 @@ isr_handler(registers regs)
print_reg("ISR", regs.interrupt);
print_reg("ERR", regs.errorcode);
print_reg("CR2", cr2);
console::get()->puts("\n");
cons->puts("\n");
print_reg(" ds", regs.ds);
print_reg("rdi", regs.rdi);
@@ -180,7 +183,7 @@ isr_handler(registers regs)
print_reg("rdx", regs.rdx);
print_reg("rcx", regs.rcx);
print_reg("rax", regs.rax);
console::get()->puts("\n");
cons->puts("\n");
print_reg("rip", regs.rip);
print_reg(" cs", regs.cs);
@@ -195,11 +198,13 @@ irq_handler(registers regs)
{
console *cons = console::get();
cons->puts("received IRQ interrupt:\n");
cons->set_color(9);
cons->puts("\nReceived IRQ interrupt:\n");
cons->set_color();
print_reg("ISR", regs.interrupt);
print_reg("ERR", regs.errorcode);
console::get()->puts("\n");
cons->puts("\n");
print_reg(" ds", regs.ds);
print_reg("rdi", regs.rdi);
@@ -210,7 +215,7 @@ irq_handler(registers regs)
print_reg("rdx", regs.rdx);
print_reg("rcx", regs.rcx);
print_reg("rax", regs.rax);
console::get()->puts("\n");
cons->puts("\n");
print_reg("rip", regs.rip);
print_reg(" cs", regs.cs);
@@ -224,17 +229,12 @@ irq_handler(registers regs)
void
gdt_dump(const table_ptr &table)
{
console *cons = console::get();
cons->puts("Loaded GDT at: ");
cons->put_hex(table.base);
cons->puts(" size: ");
cons->put_dec(table.limit + 1);
cons->puts(" bytes\n");
log::info(logs::interrupt, "Loaded GDT at: %lx size: %d bytes", table.base, table.limit+1);
int count = (table.limit + 1) / sizeof(gdt_descriptor);
const gdt_descriptor *gdt =
reinterpret_cast<const gdt_descriptor *>(table.base);
for (int i = 0; i < count; ++i) {
uint32_t base =
(gdt[i].base_high << 24) |
@@ -245,113 +245,58 @@ gdt_dump(const table_ptr &table)
static_cast<uint32_t>(gdt[i].granularity & 0x0f) << 16 |
gdt[i].limit_low;
cons->puts(" Entry ");
cons->put_dec(i);
cons->puts(": Base ");
cons->put_hex(base);
cons->puts(" Limit ");
cons->put_hex(limit);
cons->puts(" Privs ");
cons->put_dec((gdt[i].flags >> 5) & 0x03);
cons->puts(" Flags ");
if (gdt[i].flags & 0x80) {
cons->puts("P ");
log::debug(logs::interrupt,
" Entry %3d: Base %x limit %x privs %d flags %s%s%s%s%s%s",
i, base, limit, ((gdt[i].flags >> 5) & 0x03),
if (gdt[i].flags & 0x08)
cons->puts("EX ");
else
cons->puts(" ");
(gdt[i].flags & 0x80) ? "P " : " ",
(gdt[i].flags & 0x08) ? "ex " : " ",
(gdt[i].flags & 0x04) ? "dc " : " ",
(gdt[i].flags & 0x02) ? "rw " : " ",
if (gdt[i].flags & 0x04)
cons->puts("DC ");
else
cons->puts(" ");
if (gdt[i].flags & 0x02)
cons->puts("RW ");
else
cons->puts(" ");
if (gdt[i].granularity & 0x80)
cons->puts("KB ");
else
cons->puts(" B ");
if ((gdt[i].granularity & 0x60) == 0x20)
cons->puts("64");
else if ((gdt[i].granularity & 0x60) == 0x40)
cons->puts("32");
else
cons->puts("16");
(gdt[i].granularity & 0x80) ? "kb " : "b ",
(gdt[i].granularity & 0x60) == 0x60 ? "64" :
(gdt[i].granularity & 0x60) == 0x40 ? "32" : "16"
);
}
cons->puts("\n");
}
}
void
idt_dump(const table_ptr &table)
{
console *cons = console::get();
cons->puts("Loaded IDT at: ");
cons->put_hex(table.base);
cons->puts(" size: ");
cons->put_dec(table.limit + 1);
cons->puts(" bytes\n");
log::info(logs::interrupt, "Loaded IDT at: %lx size: %d bytes", table.base, table.limit+1);
int count = (table.limit + 1) / sizeof(idt_descriptor);
const idt_descriptor *idt =
reinterpret_cast<const idt_descriptor *>(table.base);
if (count > 32) count = 32;
for (int i = 0; i < count; ++i) {
uint64_t base =
(static_cast<uint64_t>(idt[i].base_high) << 32) |
(static_cast<uint64_t>(idt[i].base_mid) << 16) |
idt[i].base_low;
cons->puts(" Entry ");
cons->put_dec(i);
cons->puts(": Base ");
cons->put_hex(base);
cons->puts(" Sel(");
cons->put_dec(idt[i].selector & 0x3);
cons->puts(",");
cons->put_dec((idt[i].selector & 0x4) >> 2);
cons->puts(",");
cons->put_dec(idt[i].selector >> 3);
cons->puts(") ");
cons->puts("IST ");
cons->put_dec(idt[i].ist);
char const *type;
switch (idt[i].flags & 0xf) {
case 0x5: cons->puts(" 32tsk "); break;
case 0x6: cons->puts(" 16int "); break;
case 0x7: cons->puts(" 16trp "); break;
case 0xe: cons->puts(" 32int "); break;
case 0xf: cons->puts(" 32trp "); break;
default:
cons->puts(" ?");
cons->put_hex(idt[i].flags & 0xf);
cons->puts(" ");
break;
case 0x5: type = " 32tsk "; break;
case 0x6: type = " 16int "; break;
case 0x7: type = " 16trp "; break;
case 0xe: type = " 32int "; break;
case 0xf: type = " 32trp "; break;
default: type = " ????? "; break;
}
cons->puts("DPL ");
cons->put_dec((idt[i].flags >> 5) & 0x3);
if (idt[i].flags & 0x80)
cons->puts(" P");
cons->puts("\n");
if (idt[i].flags & 0x80) {
log::debug(logs::interrupt,
" Entry %3d: Base:%lx Sel(rpl %d, ti %d, %3d) IST:%d %s DPL:%d", i, base,
(idt[i].selector & 0x3),
((idt[i].selector & 0x4) >> 2),
(idt[i].selector >> 3),
idt[i].ist,
type,
((idt[i].flags >> 5) & 0x3));
}
}
}