umalloc.h File Reference

User memory allocation. More...

#include <stddef.h>
#include <ipxe/api.h>
#include <ipxe/malloc.h>
#include <config/umalloc.h>
#include <ipxe/uheap.h>
#include <ipxe/efi/efi_umalloc.h>
#include <ipxe/linux/linux_umalloc.h>
#include <bits/umalloc.h>

Go to the source code of this file.

Macros
#define	PROVIDE_UMALLOC(_subsys, _api_func, _func)   PROVIDE_SINGLE_API ( UMALLOC_PREFIX_ ## _subsys, _api_func, _func )
	Provide a user memory allocation API implementation. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
void *	urealloc (void *ptr, size_t new_size)
	Reallocate external memory. More...
static __always_inline void *	umalloc (size_t size)
	Allocate external memory. More...
static __always_inline void	ufree (void *ptr)
	Free external memory. More...

Detailed Description

User memory allocation.

Definition in file umalloc.h.

Macro Definition Documentation

PROVIDE_UMALLOC

#define PROVIDE_UMALLOC	(		_subsys,
			_api_func,
			_func
	)		PROVIDE_SINGLE_API ( UMALLOC_PREFIX_ ## _subsys, _api_func, _func )

Provide a user memory allocation API implementation.

Parameters

_prefix	Subsystem prefix
_api_func	API function
_func	Implementing function

Definition at line 25 of file umalloc.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

urealloc()

void* urealloc	(	void *	ptr,
		size_t	new_size
	)

Reallocate external memory.

Parameters

old_ptr	Memory previously allocated by umalloc(), or NULL
new_size	Requested size

Return values

new_ptr

Allocated memory, or NULL

Calling realloc() with a new size of zero is a valid way to free a memory block.

Referenced by fdt_urealloc(), image_set_len(), ufree(), umalloc(), and xferbuf_umalloc_realloc().

umalloc()

static __always_inline void* umalloc ( size_t  size )

inlinestatic

Allocate external memory.

Parameters

size	Requested size

Return values

ptr	Memory, or NULL

Memory is guaranteed to be aligned to a page boundary.

Definition at line 56 of file umalloc.h.

                                                             {
        return urealloc ( NULL, size );
}

References NULL, size, and urealloc().

Referenced by alloc_pixbuf(), arbel_alloc_icm(), arbel_start_firmware(), efifb_glyphs(), exanic_probe_port(), fbcon_init(), fbcon_picture_init(), fdt_create(), golan_provide_pages(), hermon_map_icm(), hermon_start_firmware(), netvsc_create_buffer(), nii_initialise_flags(), png_image_header(), txnic_alloc(), and ucode_update_all().

ufree()

static __always_inline void ufree ( void *  ptr )

inlinestatic

Free external memory.

Parameters

ptr	Memory allocated by umalloc(), or NULL

If ptr is NULL, no action is taken.

Definition at line 67 of file umalloc.h.

                                                       {
        urealloc ( ptr, 0 );
}

References urealloc().

Referenced by arbel_free(), efifb_fini(), efifb_glyphs(), efifb_init(), exanic_probe_port(), exanic_remove_port(), fbcon_fini(), fbcon_init(), fbcon_picture_init(), fdt_create(), fdt_remove(), free_image(), free_pixbuf(), golan_free_fw_areas(), hermon_free(), netvsc_create_buffer(), netvsc_destroy_buffer(), nii_initialise_flags(), nii_shutdown(), png_pixbuf(), txnic_alloc(), txnic_free(), and ucode_update_all().