[Spice-devel] [PATCH qxl-wddm-dod v2 03/25] Add debug print macro to dump debug print statements to kernel debugger output

[Frediano Ziglio]

> Signed-off-by: Sameeh Jubran <sameeh at daynix.com>

Acked-by: Frediano Ziglio <fziglio at redhat.com>

Frediano

> ---
>  qxldod/driver.cpp | 14 +++++++++++++-
>  qxldod/driver.h   | 12 ++++++++----
>  2 files changed, 21 insertions(+), 5 deletions(-)
> 
> diff --git a/qxldod/driver.cpp b/qxldod/driver.cpp
> index 4d1913c..10a24f4 100755
> --- a/qxldod/driver.cpp
> +++ b/qxldod/driver.cpp
> @@ -667,7 +667,19 @@ void DebugPrintFunc(const char *format, ...)
>      va_start(list, format);
>      vDbgPrintEx(DPFLTR_DEFAULT_ID, 9 | DPFLTR_MASK, format, list);
>  }
> +
> +void DebugPrint(int level, const char *fmt, ...)
> +{
> +    static const ULONG xlate[] = { 0, 0, 1, 2, 3 };
> +    if (level <= 0 || level > 5)
> +        return;
> +
> +    va_list list;
> +    va_start(list, fmt);
> +    vDbgPrintEx(DPFLTR_IHVVIDEO_ID, xlate[level - 1], fmt, list);
> +    va_end(list);
> +}
> +
>  #endif
>  
>  #pragma code_seg(pop) // End Non-Paged Code
> -
> diff --git a/qxldod/driver.h b/qxldod/driver.h
> index e64c098..08197b4 100755
> --- a/qxldod/driver.h
> +++ b/qxldod/driver.h
> @@ -211,12 +211,16 @@ DodSystemDisplayWrite(
>  
>  extern int nDebugLevel;
>  void DebugPrintFuncSerial(const char *format, ...);
> +void DebugPrintFunc(const char *format, ...);
> +void DebugPrint(int level, const char *fmt, ...);
>  
> -void DebugPrintFunc(const char *format, ...);
> +#define DbgExpandArguments(...) __VA_ARGS__
> +
> +#define DbgPrint(level, line) do { \
> +    if (level <= nDebugLevel) DebugPrintFuncSerial line; \
> +    DebugPrint(level, DbgExpandArguments line); \
> +} while(0)
>  
> -#define DbgPrint(level, line) \
> -    if (level > nDebugLevel) {} \
> -    else DebugPrintFuncSerial line
>  #else
>  #define DbgPrint(level, line)
>  #endif