From 4f7dc5f608c07f5bc169217bedac6883b0d998df Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Wed, 27 May 2020 01:58:30 +0200 Subject: efi_loader: allow compiling with clang On ARM systems gd is stored in register r9 or x18. When compiling with clang gd is defined as a macro calling function gd_ptr(). So we can not make assignments to gd. In the UEFI sub-system we need to save gd when leaving to UEFI binaries and have to restore gd when reentering U-Boot. Define a new function set_gd() for setting gd and use it in the UEFI sub-system. Signed-off-by: Heinrich Schuchardt Tested-by: Tom Rini --- lib/efi_loader/efi_boottime.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'lib/efi_loader') diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index db349381965..1591ad83007 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -49,7 +49,7 @@ static efi_handle_t current_image; * restriction so we need to manually swap its and our view of that register on * EFI callback entry/exit. */ -static volatile void *efi_gd, *app_gd; +static volatile gd_t *efi_gd, *app_gd; #endif /* 1 if inside U-Boot code, 0 if inside EFI payload code */ @@ -89,7 +89,7 @@ int __efi_entry_check(void) #ifdef CONFIG_ARM assert(efi_gd); app_gd = gd; - gd = efi_gd; + set_gd(efi_gd); #endif return ret; } @@ -99,7 +99,7 @@ int __efi_exit_check(void) { int ret = --entry_count == 0; #ifdef CONFIG_ARM - gd = app_gd; + set_gd(app_gd); #endif return ret; } @@ -123,7 +123,7 @@ void efi_restore_gd(void) /* Only restore if we're already in EFI context */ if (!efi_gd) return; - gd = efi_gd; + set_gd(efi_gd); #endif } @@ -2920,7 +2920,7 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle, * otherwise __efi_entry_check() will put the wrong value into * app_gd. */ - gd = app_gd; + set_gd(app_gd); #endif /* * To get ready to call EFI_EXIT below we have to execute the -- cgit v1.2.3