stdio_kernel_ext.cpp File Reference

#include "mos/assert.hpp"
#include "mos/misc/kallsyms.hpp"
#include "mos/platform/platform.hpp"
#include "mos/tasks/task_types.hpp"
#include <mos/types.hpp>
#include <mos_stdio.hpp>

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Macros
#define	current   (**pformat)
#define	peek_next   (*(*pformat + 1))
#define	shift_next   ((void) ((*pformat)++))
#define	unshift_next   ((void) ((*pformat)--))
#define	wrap_print(...)
#define	wrap_printed(x)
#define	null_check()

Functions
static size_t	do_print_vmflags (char *buf, size_t size, VMFlags flags)
size_t	vsnprintf_do_pointer_kernel (char *buf, size_t *size, const char **pformat, ptr_t ptr)
	Kernel's extension to vsnprintf, 'p' format specifier.

Macro Definition Documentation

current

#define current   (**pformat)

peek_next

#define peek_next   (*(*pformat + 1))

Referenced by vsnprintf_do_pointer_kernel().

shift_next

#define shift_next   ((void) ((*pformat)++))

Referenced by vsnprintf_do_pointer_kernel().

unshift_next

#define unshift_next   ((void) ((*pformat)--))

wrap_print

#define wrap_print

(

...

)

Value:

wrap_printed(snprintf(buf, *size, __VA_ARGS__))

Referenced by vsnprintf_do_pointer_kernel().

wrap_printed

#define wrap_printed

(

x

)

Value:

    do                                                                                                                                                                   \
    {                                                                                                                                                                    \
        const size_t _printed = x;                                                                                                                                       \
        buf += _printed, ret += _printed;                                                                                                                                \
    } while (0)

Referenced by vsnprintf_do_pointer_kernel().

null_check

#define null_check

(

)

Value:

    do                                                                                                                                                                   \
    {                                                                                                                                                                    \
        if (unlikely(ptr == 0))                                                                                                                                          \
        {                                                                                                                                                                \
            wrap_print("(null)");                                                                                                                                        \
            goto done;                                                                                                                                                   \
        }                                                                                                                                                                \
    } while (0)

Referenced by vsnprintf_do_pointer_kernel().

Function Documentation

do_print_vmflags()

size_t do_print_vmflags ( char * buf, size_t size, VMFlags flags )

static

Definition at line 11 of file stdio_kernel_ext.cpp.

Referenced by vsnprintf_do_pointer_kernel().

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vsnprintf_do_pointer_kernel()

size_t vsnprintf_do_pointer_kernel	(	char *	buf,
		size_t *	size,
		const char **	pformat,
		ptr_t	ptr )

Kernel's extension to vsnprintf, 'p' format specifier.

Supported extensions are listed below:

'ps' prints a kernel symbol name, with offset if applicable. e.g. "do_fork (+0x123)" 'pt' prints a thread_t object. e.g.: "[p123:my_process]" 'pp' prints a process_t object. e.g.: "[t123:my_thread]" 'pvf' prints VMFlags_t flag, only the r/w/x bits are printed for general purpose. e.g.: "rwx" / "r--" / "rw-" / "--x" 'pvm' prints a vmap_t object. e.g.: "{ 0x123000-0x123fff, rwx, on_fault=0x12345678 }" 'pio' prints an IO object. e.g.: "{ 'file.txt', offset=0x12345678 }"

Returns

true if the format specifier is handled, false otherwise, the caller should fallback to the default implementation. (i.e. p)

Definition at line 39 of file stdio_kernel_ext.cpp.

Referenced by vsnprintf().

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