Debugging Tools

Support debugging of the operating system. More...

Macros
#define	STRINGIFY(S)
	Converts a macro parameter into a string.
#define	assert_size(TYPE, SIZE)
	Statically ensure (at compile time) that a data type (or variable) has the expected size.
#define	assert(EXP)
	Ensure (at execution time) an expression evaluates to true, print an error message and stop the CPU otherwise.
#define	kernelpanic(MSG)
	Print an error message in the debug window and stop the current core.

Detailed Description

Support debugging of the operating system.

Macro Definition Documentation

STRINGIFY

#define STRINGIFY

(

S

)

Value:

#S

Converts a macro parameter into a string.

Parameters

S	Expression to be converted

Returns

stringified version of S

assert_size

#define assert_size	(		TYPE,
			SIZE )

Value:

static_assert(sizeof(TYPE) == (SIZE), "Wrong size for " STRINGIFY(TYPE))

Statically ensure (at compile time) that a data type (or variable) has the expected size.

Parameters

TYPE	The type to be checked
SIZE	Expected size in bytes

assert

#define assert

(

EXP

)

Value:

do { \
    if (__builtin_expect(!(EXP), 0)) { \
        assertion_failed(STRINGIFY(EXP), __func__, __FILE__, __LINE__); \
    } \
} while (false)

Ensure (at execution time) an expression evaluates to true, print an error message and stop the CPU otherwise.

Parameters

EXP	The expression to be checked

kernelpanic

#define kernelpanic

(

MSG

)

Value:

do { \
        DBG << "PANIC: '" << (MSG) << "' in " << __func__ \
            << " @ " << __FILE__ << ":" << __LINE__ \
            << flush; \
    Core::die(); \
} while (0)

Print an error message in the debug window and stop the current core.

Parameters

MSG	error message