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Improve debugging functions

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- More sensible stack tracer, in C++ (no symbols yet)
- Was forgetting to add null frame to new kernel stacks
- __kernel_assert was using an old vector
- A GP fault will only print its associated table entry
This commit is contained in:
Justin C. Miller
2019-03-15 00:47:46 -07:00
parent 6410c898c5
commit bf8286d15f
9 changed files with 81 additions and 66 deletions
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27
src/kernel/gdt.cpp
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@@ -184,18 +184,25 @@ gdt_init()
}
void
gdt_dump()
gdt_dump(int index)
{
const table_ptr &table = g_gdtr;
console *cons = console::get();
cons->printf(" GDT: loc:%lx size:%d\n", table.base, table.limit+1);
int start = 0;
int count = (table.limit + 1) / sizeof(gdt_descriptor);
if (index != -1) {
start = index;
count = 1;
} else {
cons->printf(" GDT: loc:%lx size:%d\n", table.base, table.limit+1);
}
const gdt_descriptor *gdt =
reinterpret_cast<const gdt_descriptor *>(table.base);
for (int i = 0; i < count; ++i) {
for (int i = start; i < start+count; ++i) {
uint32_t base =
(gdt[i].base_high << 24) |
(gdt[i].base_mid << 16) |
@@ -233,17 +240,25 @@ gdt_dump()
}
void
idt_dump()
idt_dump(int index)
{
const table_ptr &table = g_idtr;
log::info(logs::boot, "Loaded IDT at: %lx size: %d bytes", table.base, table.limit+1);
int start = 0;
int count = (table.limit + 1) / sizeof(idt_descriptor);
if (index != -1) {
start = index;
count = 1;
log::info(logs::boot, "IDT FOR INDEX %02x", index);
} else {
log::info(logs::boot, "Loaded IDT at: %lx size: %d bytes", table.base, table.limit+1);
}
const idt_descriptor *idt =
reinterpret_cast<const idt_descriptor *>(table.base);
for (int i = 0; i < count; ++i) {
for (int i = start; i < start+count; ++i) {
uint64_t base =
(static_cast<uint64_t>(idt[i].base_high) << 32) |
(static_cast<uint64_t>(idt[i].base_mid) << 16) |