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/*
* ctors.c
* Copyright 2019 Peter Jones <pjones@redhat.com>
*
*/
#include <efi.h>
#include <efilib.h>
typedef void (*funcp)(void);
/*
* Note that these aren't the using the GNU "CONSTRUCTOR" output section
* command, so they don't start with a size. Because of p2align and the
* end/END definitions, and the fact that they're mergeable, they can also
* have NULLs which aren't guaranteed to be at the end.
*/
extern funcp __init_array_start[], __init_array_end[];
extern funcp __CTOR_LIST__[], __CTOR_END__[];
extern funcp __fini_array_start[], __fini_array_end[];
extern funcp __DTOR_LIST__[], __DTOR_END__[];
static void ctors(void)
{
size_t __init_array_length = __init_array_end - __init_array_start;
for (size_t i = 0; i < __init_array_length; i++) {
funcp func = __init_array_start[i];
if (func != NULL)
func();
}
size_t __CTOR_length = __CTOR_END__ - __CTOR_LIST__;
for (size_t i = 0; i < __CTOR_length; i++) {
size_t current = __CTOR_length - i - 1;
funcp func = __CTOR_LIST__[current];
if (func != NULL)
func();
}
}
static void dtors(void)
{
size_t __DTOR_length = __DTOR_END__ - __DTOR_LIST__;
for (size_t i = 0; i < __DTOR_length; i++) {
funcp func = __DTOR_LIST__[i];
if (func != NULL)
func();
}
size_t __fini_array_length = __fini_array_end - __fini_array_start;
for (size_t i = 0; i < __fini_array_length; i++) {
size_t current = __fini_array_length - i - 1;
funcp func = __fini_array_start[current];
if (func != NULL)
func();
}
}
extern EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *systab);
EFI_STATUS _entry(EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
{
EFI_STATUS status;
InitializeLib(image, systab);
ctors();
status = efi_main(image, systab);
dtors();
return status;
}
// vim:fenc=utf-8:tw=75:noet
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