linux-kernel - [efitools PATCH 1/1] Make.rules: enable building on riscv64

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Date:   Thu,  1 Apr 2021 18:57:54 +0200
From:   Heinrich Schuchardt <xypron.glpk@....de>
To:     James Bottomley <James.Bottomley@...senPartnership.com>
Cc:     Ard Biesheuvel <ardb@...nel.org>, linux-efi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Heinrich Schuchardt <xypron.glpk@....de>
Subject: [efitools PATCH 1/1] Make.rules: enable building on riscv64

We can use just the same flags as for aarch64.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>
---
RISC-V patches for gnu-efi are not yet accepted in upstream. Cf.

[Gnu-efi-discuss] [PATCH 1/1] Initial support for RISCV64
https://sourceforge.net/p/gnu-efi/mailman/gnu-efi-discuss/thread/20210401153553.103286-1-xypron.glpk%40gmx.de/#msg37253360
[Gnu-efi-discuss] [PATCH 1/1] Undefined Status in LibGetVariableAndSize()
https://sourceforge.net/p/gnu-efi/mailman/gnu-efi-discuss/thread/20210319162557.334645-1-xypron.glpk%40gmx.de/#msg37243995

You can use
https://github.com/xypron/gnu-efi/releases/tag/riscv64-2021-04-01 for
building sbsigntools and efitools.
---
 Make.rules | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Make.rules b/Make.rules
index 903a5a4..69bd3bd 100644
--- a/Make.rules
+++ b/Make.rules
@@ -10,6 +10,8 @@ else ifeq ($(ARCH),aarch64)
 ARCH3264 =
 else ifeq ($(ARCH),arm)
 ARCH3264 =
+else ifeq ($(ARCH),riscv64)
+ARCH3264 =
 else
 $(error unknown architecture $(ARCH))
 endif
@@ -56,6 +58,11 @@ ifeq ($(ARCH),aarch64)
   FORMAT = -O binary
 endif

+ifeq ($(ARCH),riscv64)
+  LDFLAGS += --defsym=EFI_SUBSYSTEM=0x0a
+  FORMAT = -O binary
+endif
+
 %.efi: %.so
 	$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym \
 		   -j .rel -j .rela -j .rel.* -j .rela.* -j .rel* -j .rela* \
--
2.30.2