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Kernel: Stop supporting sprintf
The kernel no longer needs sprintf (which might, in theory, overflow), so we can hide the C++ declaration and make the function uncallable from within the kernel. However, libstdc++ still links against it, as libstdc++ uses it for demangling, from AK::demangle().
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2 changed files with 4 additions and 1 deletions
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@ -133,6 +133,10 @@ static void buffer_putch(char*& bufptr, char ch)
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*bufptr++ = ch;
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}
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// Declare it, so that the symbol is exported, because libstdc++ uses it.
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// However, *only* libstdc++ uses it, and none of the rest of the Kernel.
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extern "C" int sprintf(char* buffer, const char* fmt, ...);
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int sprintf(char* buffer, const char* fmt, ...)
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{
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ScopedSpinLock lock(s_log_lock);
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@ -33,7 +33,6 @@ int dbgprintf(const char* fmt, ...);
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int dbgputstr(const char*, int);
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int kernelputstr(const char*, int);
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int kprintf(const char* fmt, ...);
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int sprintf(char* buf, const char* fmt, ...);
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int snprintf(char* buf, size_t, const char* fmt, ...);
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void set_serial_debug(bool on_or_off);
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int get_serial_debug();
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