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5f88f5ed02
Continuing moving things out of kutil. The assert as implemented could only ever work in the kernel, so remaining kutil uses of kassert have been moved to including standard C assert instead. Along the way, kassert was broken out into panic::panic and kassert, and the panic.serial namespace was renamed panicking.
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#pragma once
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#include <stdint.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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(1 << 18); // destination self
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extern uint32_t *apic_icr;
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extern uintptr_t 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 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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register uintptr_t syms asm("rdi");
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register const char *m asm("rsi");
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register const char *fn asm("rdx");
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register const char *fi asm("rcx");
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register uint64_t l asm("r8");
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asm volatile ("mov %1, %0" : "=r"(syms) : "r"(symbol_table));
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asm volatile ("mov %1, %0" : "=r"(m) : "r"(message));
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asm volatile ("mov %1, %0" : "=r"(fn) : "r"(function));
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asm volatile ("mov %1, %0" : "=r"(fi) : "r"(file));
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asm volatile ("mov %1, %0" : "=r"(l) : "r"(line));
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*apic_icr = send_nmi_command;
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while (1) asm ("hlt");
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}
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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 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, 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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