helper.h File Reference

Helper functions. More...

Macros
#define	do_string2(x)   do_string(x)
	Assert.
#define	do_string(x)   #x
#define	assert(X)   do { if (!(X)) do_exit("assertion '" #X "' failed in " __FILE__ ":" do_string2(__LINE__) ); } while (0)
#define	check0(X,...)   ({ unsigned __res; if ((__res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, __res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); return; }})
	Check whether X is true, output an error and return.
#define	check1(RET, X,...)   ({ unsigned __res; if ((__res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, __res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); return RET; }})
	Check whether X is true, output an error and return RET.
#define	check2(GOTO, X,...)   ({ if ((res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); goto GOTO; }})
	Check whether X is true, output an error and goto RET.
#define	asmlinkage_protect(...)   __asm__ __volatile__ ("" : : __VA_ARGS__);
	Make a dependency on the argument, to avoid that the compiler will touch them.

Functions
void *	operator new[] (unsigned size, unsigned alignment)
void *	operator new (unsigned size, unsigned alignment)
void	do_exit (const char *msg) __attribute__((noreturn))
void *	memalloc_mempool (unsigned long size, unsigned long align)
	Alloc memory from a mempool defined in the linker script.
void	memfree_mempool (void *ptr)
unsigned	alloc_cap_region (unsigned count, unsigned align)
void	dealloc_cap_region (unsigned base, unsigned count)

Variables
void *(*	memalloc )(unsigned long size, unsigned long align)
void(*	memfree )(void *ptr)

Detailed Description

Helper functions.

Copyright (C) 2010, Bernhard Kauer bk@vm.nosp@m.mon..nosp@m.org Economic rights: Technische Universitaet Dresden (Germany)

This file is part of Vancouver.

Vancouver is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

Vancouver is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License version 2 for more details.

Macro Definition Documentation

#define asmlinkage_protect

(

...

)

__asm__ __volatile__ ("" : : __VA_ARGS__);

Make a dependency on the argument, to avoid that the compiler will touch them.

#define assert

(

X

)

do { if (!(X)) do_exit("assertion '" #X "' failed in " __FILE__ ":" do_string2(__LINE__) ); } while (0)

#define check0	(		X,
			...
	)		({ unsigned __res; if ((__res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, __res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); return; }})

Check whether X is true, output an error and return.

#define check1	(		RET,
			X,
			...
	)		({ unsigned __res; if ((__res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, __res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); return RET; }})

Check whether X is true, output an error and return RET.

#define check2	(		GOTO,
			X,
			...
	)		({ if ((res = (X))) { Logging::printf("%s() line %d: '" #X "' error = %x", __func__, __LINE__, res); Logging::printf(" " __VA_ARGS__); Logging::printf("\n"); goto GOTO; }})

Check whether X is true, output an error and goto RET.

#define do_string

(

x

)

#x

#define do_string2

(

x

)

do_string(x)

Assert.

Function Documentation

unsigned alloc_cap_region	(	unsigned	count,
		unsigned	align
	)

void dealloc_cap_region	(	unsigned	base,
		unsigned	count
	)

void do_exit

(

const char *

msg

)

void* memalloc_mempool	(	unsigned long	size,
		unsigned long	align
	)

Alloc memory from a mempool defined in the linker script.

void memfree_mempool

(

void *

ptr

)

void* operator new	(	unsigned	size,
		unsigned	alignment
	)

void* operator new[]	(	unsigned	size,
		unsigned	alignment
	)

Variable Documentation

void*(* memalloc)(unsigned long size, unsigned long align)

void(* memfree)(void *ptr)