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Kernel: Take some baby steps towards x86_64

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Make more of the kernel compile in 64-bit mode, and make some things
pointer-size-agnostic (by using FlatPtr.)

There's a lot of work to do here before the kernel will even compile.
This commit is contained in:
Andreas Kling 2021-02-25 16:18:36 +01:00
parent eb08a0edd5
commit 8f70528f30
12 changed files with 187 additions and 118 deletions
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6
Kernel/KSyms.cpp
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@ -48,7 +48,7 @@ static u8 parse_hex_digit(char nibble)
return 10 + (nibble - 'a');
}
u32 address_for_kernel_symbol(const StringView& name)
FlatPtr address_for_kernel_symbol(const StringView& name)
{
for (size_t i = 0; i < s_symbol_count; ++i) {
if (!strncmp(name.characters_without_null_termination(), s_symbols[i].name, name.length()))
@ -57,7 +57,7 @@ u32 address_for_kernel_symbol(const StringView& name)
return 0;
}
const KernelSymbol* symbolicate_kernel_address(u32 address)
const KernelSymbol* symbolicate_kernel_address(FlatPtr address)
{
if (address < g_lowest_kernel_symbol_address || address > g_highest_kernel_symbol_address)
return nullptr;
@ -147,7 +147,7 @@ NEVER_INLINE static void dump_backtrace_impl(FlatPtr base_pointer, bool use_ksym
FlatPtr* stack_ptr = (FlatPtr*)base_pointer;
while (stack_ptr && safe_memcpy(copied_stack_ptr, stack_ptr, sizeof(copied_stack_ptr), fault_at)) {
FlatPtr retaddr = copied_stack_ptr[1];
dbgln("{:p} (next: {:p})", retaddr, stack_ptr ? (u32*)copied_stack_ptr[0] : 0);
dbgln("{:p} (next: {:p})", retaddr, stack_ptr ? (FlatPtr*)copied_stack_ptr[0] : 0);
stack_ptr = (FlatPtr*)copied_stack_ptr[0];
}
return;