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https://github.com/justinian/jsix.git
synced 2025-12-10 00:14:32 -08:00
fd25d3babc
The kernel/main.cpp and kernel/memory_bootstrap.cpp files had become something of a junk drawer. This change cleans them up in the following ways: - Most CPU initialization has moved to cpu.cpp, allowing several functions to be made static and removed from cpu.h - Multi-core startup code has moved to the new smp.h and smp.cpp, and ap_startup.s has been renamed smp.s to match. - run_constructors() has moved to memory_bootstrap.cpp, and all the functionality of that file has been hidden behind a new public interface mem::initialize(). - load_init_server() has moved from memory_bootstrap.cpp to main.cpp
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
#pragma once
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#include <stdint.h>
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#include "cpu.h"
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namespace panic {
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constexpr uint32_t send_nmi_command =
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(4 << 8) | // Delivery mode NMI
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(1 << 14) | // assert level high
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(2 << 18); // destination all
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extern uint32_t *apic_icr;
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extern void const *symbol_table;
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__attribute__ ((always_inline))
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inline void panic(
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const char *message = nullptr,
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const cpu_state *user = nullptr,
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const char *function = __builtin_FUNCTION(),
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const char *file = __builtin_FILE(),
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uint64_t line = __builtin_LINE())
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{
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cpu_data &cpu = current_cpu();
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// Grab the global panic block for ourselves
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cpu.panic = __atomic_exchange_n(&g_panic_data_p, nullptr, __ATOMIC_ACQ_REL);
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// If we aren't the first CPU to panic, cpu.panic will be null
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if (cpu.panic) {
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cpu.panic->symbol_data = symbol_table;
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cpu.panic->user_state = user;
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cpu.panic->message = message;
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cpu.panic->function = function;
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cpu.panic->file = file;
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cpu.panic->line = line;
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cpu.panic->cpus = g_num_cpus;
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*apic_icr = send_nmi_command;
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}
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while (1) asm ("hlt");
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}
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/// Install a panic handler.
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/// \arg entrypoint Virtual address of the panic handler's entrypoint
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/// \arg symbol_data Pointer to the symbol table data
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void install(uintptr_t entrypoint, const void *symbol_data);
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} // namespace panic
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#ifndef NDEBUG
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__attribute__ ((always_inline))
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inline void kassert(
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bool check,
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const char *message = nullptr,
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const cpu_state *user = nullptr,
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const char *function = __builtin_FUNCTION(),
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const char *file = __builtin_FILE(),
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uint64_t line = __builtin_LINE())
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{
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if (!check)
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panic::panic(message, user, function, file, line);
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}
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#define assert(x) kassert((x))
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#else // NDEBUG
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#define kassert(...) ((void)0)
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#define assert(x) ((void)0)
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#endif // NDEBUG
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