From 8719cc2040368d43ab2de0b6e1b850b2c9cfc5b7 Mon Sep 17 00:00:00 2001 From: Daniel Kiper Date: Tue, 9 Apr 2024 19:56:02 +0200 Subject: [PATCH] windows: Add _stack_chk_guard/_stack_chk_fail symbols for Windows 64-bit target Otherwise the GRUB cannot start due to missing symbols when stack protector is enabled on EFI platforms. Signed-off-by: Daniel Kiper Reviewed-by: Vladimir Serbinenko --- include/grub/stack_protector.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/grub/stack_protector.h b/include/grub/stack_protector.h index c88dc00b5..13d2657d9 100644 --- a/include/grub/stack_protector.h +++ b/include/grub/stack_protector.h @@ -25,6 +25,10 @@ #ifdef GRUB_STACK_PROTECTOR extern grub_addr_t EXPORT_VAR (__stack_chk_guard); extern void __attribute__ ((noreturn)) EXPORT_FUNC (__stack_chk_fail) (void); +#if defined(_WIN64) && !defined(__CYGWIN__) /* MinGW, Windows 64-bit target. */ +static grub_addr_t __attribute__ ((weakref("__stack_chk_guard"))) EXPORT_VAR (_stack_chk_guard); +static void __attribute__ ((noreturn, weakref("__stack_chk_fail"))) EXPORT_FUNC (_stack_chk_fail) (void); +#endif #endif #endif /* GRUB_STACK_PROTECTOR_H */