[PATCH v12 13/13] libgcrypt: Don't use 64-bit division on platforms where it's slow

From: Vladimir Serbinenko <phcoder@gmail.com>
To: grub-devel@gnu.org
Cc: Vladimir Serbinenko <phcoder@gmail.com>
Subject: [PATCH v12 13/13] libgcrypt: Don't use 64-bit division on platforms where it's slow
Date: Tue, 15 Apr 2025 22:57:08 +0000	[thread overview]
Message-ID: <20250415225914.361036-14-phcoder@gmail.com> (raw)
In-Reply-To: <20250415225914.361036-1-phcoder@gmail.com>

Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
---
 .../lib/libgcrypt-patches/07_disable_64div.patch  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 grub-core/lib/libgcrypt-patches/07_disable_64div.patch

diff --git a/grub-core/lib/libgcrypt-patches/07_disable_64div.patch b/grub-core/lib/libgcrypt-patches/07_disable_64div.patch
new file mode 100644
index 000000000..5c5e0209f
--- /dev/null
+++ b/grub-core/lib/libgcrypt-patches/07_disable_64div.patch
@@ -0,0 +1,15 @@
+Don't use 64-bit division on platforms where it's slow
+
+diff --git a/grub-core/lib/libgcrypt/mpi/longlong.h b/grub-core/lib/libgcrypt/mpi/longlong.h
+index 21bd1a7ef..672448724 100644
+--- a/grub-core/lib/libgcrypt-grub/mpi/longlong.h
++++ b/grub-core/lib/libgcrypt-grub/mpi/longlong.h
+@@ -1709,7 +1709,7 @@ typedef unsigned int UTItype __attribute__ ((mode (TI)));
+   } while (0)
+ 
+ /* Use double word type if available. */
+-#if !defined (udiv_qrnnd) && defined (UDWtype)
++#if !defined (udiv_qrnnd) && defined (UDWtype) && !defined(__arm__) && !defined(__mips__) && !defined(__powerpc__)
+ #  define udiv_qrnnd(q, r, nh, nl, d) \
+   do {									\
+     UWtype __d = (d);							\
-- 
2.49.0


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