diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index aa8d0d12d01..59479eddb9d 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -50,6 +50,7 @@ static volatile void *efi_gd, *app_gd; #endif static int entry_count; +static int nesting_level; /* Called on every callback entry */ int __efi_entry_check(void) @@ -96,6 +97,28 @@ void efi_restore_gd(void) #endif } +/* + * Two spaces per indent level, maxing out at 10.. which ought to be + * enough for anyone ;-) + */ +static const char *indent_string(int level) +{ + const char *indent = " "; + const int max = strlen(indent); + level = min(max, level * 2); + return &indent[max - level]; +} + +const char *__efi_nesting_inc(void) +{ + return indent_string(nesting_level++); +} + +const char *__efi_nesting_dec(void) +{ + return indent_string(--nesting_level); +} + /* Low 32 bit */ #define EFI_LOW32(a) (a & 0xFFFFFFFFULL) /* High 32 bit */ @@ -748,9 +771,11 @@ static efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle, return EFI_EXIT(info->exit_status); } + __efi_nesting_dec(); __efi_exit_check(); entry(image_handle, &systab); __efi_entry_check(); + __efi_nesting_inc(); /* Should usually never get here */ return EFI_EXIT(EFI_SUCCESS); |