lib.h File Reference

#include <xtf/compiler.h>
#include <xtf/console.h>
#include <xtf/types.h>

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Macros
#define	ARRAY_SIZE(a)   (sizeof(a) / sizeof(*a))
#define	ACCESS_ONCE(x)   (*(volatile typeof(x) *)&(x))
#define	ASSERT(cond)
#define	BUILD_BUG_ON(cond)   ((void)sizeof(struct { char: -!!(cond); }))
#define	min(a, b)
#define	max(a, b)
#define	ROUNDUP(x, a)   (((x) + (a) - 1) & ~((a) - 1))

Functions
void	panic (const char *fmt,...)
void	heapsort (void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *), void(*swap)(void *, void *))
unsigned long	exec_user_param (unsigned long(*fn)(unsigned long), unsigned long p1)
	Execute fn(p1) at user privilege, passing its return value back. More...
static unsigned long	exec_user (unsigned long(*fn)(void))
static void	exec_user_void (void(*fn)(void))
int	xtf_probe_sysctl_interface_version (void)
	Probe for the SYSCTL_INTERFACE_VERSION in use by the hypervisor. More...
int	xtf_get_domid (void)
	Obtain the current domid. More...

Macro Definition Documentation

ARRAY_SIZE

#define ARRAY_SIZE

(

a

)

(sizeof(a) / sizeof(*a))

Definition at line 8 of file lib.h.

ACCESS_ONCE

#define ACCESS_ONCE

(

x

)

(*(volatile typeof(x) *)&(x))

Definition at line 10 of file lib.h.

ASSERT

#define ASSERT

(

cond

)

Value:

do { if ( !(cond) )                                 \
            panic("ASSERT(%s) failed at %s:%u\n",       \
                  #cond, __FILE__, __LINE__);           \
    } while ( 0 )

Definition at line 14 of file lib.h.

BUILD_BUG_ON

#define BUILD_BUG_ON

(

cond

)

((void)sizeof(struct { char: -!!(cond); }))

Definition at line 24 of file lib.h.

min

#define min	(		a,
			b
	)

Value:

({                                                  \
        const typeof(a) _a = (a);                       \
        const typeof(b) _b = (b);                       \
        (void)(&_a == &_b);                             \
        _a < _b ? _a : _b;                              \
    })

Definition at line 28 of file lib.h.

max

#define max	(		a,
			b
	)

Value:

({                                                  \
        const typeof(a) _a = (a);                       \
        const typeof(b) _b = (b);                       \
        (void)(&_a == &_b);                             \
        _a > _b ? _a : _b;                              \
    })

Definition at line 36 of file lib.h.

ROUNDUP

#define ROUNDUP	(		x,
			a
	)		(((x) + (a) - 1) & ~((a) - 1))

Definition at line 44 of file lib.h.

Function Documentation

panic()

void panic	(	const char *	fmt,
			...
	)

Definition at line 15 of file lib.c.

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heapsort()

void heapsort	(	void *	base,
		size_t	nmemb,
		size_t	size,
		int(*)(const void *, const void *)	compar,
		void(*)(void *, void *)	swap
	)

Definition at line 25 of file heapsort.c.

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exec_user_param()

unsigned long exec_user_param	(	unsigned long(*)(unsigned long)	fn,
		unsigned long	p1
	)

Execute fn(p1) at user privilege, passing its return value back.

fn() is executed on user_stack[], and is non-reentrant.

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exec_user()

static unsigned long exec_user ( unsigned long(*)(void)  fn )

inlinestatic

Definition at line 62 of file lib.h.

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exec_user_void()

static void exec_user_void ( void(*)(void)  fn )

inlinestatic

Definition at line 70 of file lib.h.

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xtf_probe_sysctl_interface_version()

int xtf_probe_sysctl_interface_version

(

void

)

Probe for the SYSCTL_INTERFACE_VERSION in use by the hypervisor.

Returns

version, or -1 on failure.

Definition at line 32 of file lib.c.

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xtf_get_domid()

int xtf_get_domid

(

void

)

Obtain the current domid.

Returns

domid, or -1 on failure.

Definition at line 47 of file lib.c.

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