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fallback: Add build flag to always try to chain-load the new boot entry #445

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fallback: Add build flag to always try to chain-load the new boot entry #445

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4 changes: 4 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,10 @@ ifneq ($(origin FALLBACK_NONINTERACTIVE), undefined)
CFLAGS += -DFALLBACK_NONINTERACTIVE
endif

ifneq ($(origin FALLBACK_NEVER_REBOOT), undefined)
CFLAGS += -DFALLBACK_NEVER_REBOOT
endif

ifneq ($(origin FALLBACK_VERBOSE_WAIT), undefined)
CFLAGS += -DFALLBACK_VERBOSE_WAIT=$(FALLBACK_VERBOSE_WAIT)
endif
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12 changes: 11 additions & 1 deletion fallback.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1059,6 +1059,9 @@ try_start_first_option(EFI_HANDLE parent_image_handle)
static UINT32
get_fallback_no_reboot(void)
{
#ifdef FALLBACK_NEVER_REBOOT
return 1;
#else
EFI_STATUS efi_status;
UINT32 no_reboot;
UINTN size = sizeof(UINT32);
Expand All @@ -1069,6 +1072,7 @@ get_fallback_no_reboot(void)
return no_reboot;
}
return 0;
#endif
}

#ifndef FALLBACK_NONINTERACTIVE
Expand Down Expand Up @@ -1184,7 +1188,13 @@ efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
try_start_first_option(image);
} else {
if (get_fallback_no_reboot() == 1) {
VerbosePrint(L"NO_REBOOT is set, starting the first image\n");
#ifdef FALLBACK_NEVER_REBOOT
const CHAR16 *reason = L"FALLBACK_NEVER_REBOOT";
#else
const CHAR16 *reason = L"NO_REBOOT";
#endif
VerbosePrint(L"%s is set, starting the first image\n",
reason);
try_start_first_option(image);
}

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