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Kernel: Turn Thread::current and Process::current into functions

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This allows us to query the current thread and process on a
per processor basis
This commit is contained in:
Tom 2020-06-28 15:34:31 -06:00 • committed by Andreas Kling
parent cdc78515b6
commit 16783bd14d
39 changed files with 518 additions and 369 deletions
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9
Kernel/KSyms.cpp
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@ -130,8 +130,9 @@ NEVER_INLINE void dump_backtrace_impl(FlatPtr base_pointer, bool use_ksyms)
}
OwnPtr<Process::ELFBundle> elf_bundle;
if (Process::current)
elf_bundle = Process::current->elf_bundle();
auto current_process = Process::current();
if (current_process)
elf_bundle = current_process->elf_bundle();
struct RecognizedSymbol {
FlatPtr address;
@ -142,13 +143,13 @@ NEVER_INLINE void dump_backtrace_impl(FlatPtr base_pointer, bool use_ksyms)
size_t recognized_symbol_count = 0;
if (use_ksyms) {
for (FlatPtr* stack_ptr = (FlatPtr*)base_pointer;
(Process::current ? Process::current->validate_read_from_kernel(VirtualAddress(stack_ptr), sizeof(void*) * 2) : 1) && recognized_symbol_count < max_recognized_symbol_count; stack_ptr = (FlatPtr*)*stack_ptr) {
(current_process ? current_process->validate_read_from_kernel(VirtualAddress(stack_ptr), sizeof(void*) * 2) : 1) && recognized_symbol_count < max_recognized_symbol_count; stack_ptr = (FlatPtr*)*stack_ptr) {
FlatPtr retaddr = stack_ptr[1];
recognized_symbols[recognized_symbol_count++] = { retaddr, symbolicate_kernel_address(retaddr) };
}
} else {
for (FlatPtr* stack_ptr = (FlatPtr*)base_pointer;
(Process::current ? Process::current->validate_read_from_kernel(VirtualAddress(stack_ptr), sizeof(void*) * 2) : 1); stack_ptr = (FlatPtr*)*stack_ptr) {
(current_process ? current_process->validate_read_from_kernel(VirtualAddress(stack_ptr), sizeof(void*) * 2) : 1); stack_ptr = (FlatPtr*)*stack_ptr) {
FlatPtr retaddr = stack_ptr[1];
dbg() << String::format("%x", retaddr) << " (next: " << String::format("%x", (stack_ptr ? (u32*)*stack_ptr : 0)) << ")";
}