From 4b5faa5775bf75bbc36ea513736876da515989eb Mon Sep 17 00:00:00 2001
From: Yi Li <yi1.li@intel.com>
Date: Thu, 3 Aug 2023 12:37:40 +0800
Subject: CryptoPkg: add missing gcc instructions

Used when build IA32 CryptoPkg by gcc, the definition of the
instructions can be found at:
https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html

Signed-off-by: Yi Li <yi1.li@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Xiaoyu Lu <xiaoyu1.lu@intel.com>
Cc: Guomin Jiang <guomin.jiang@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Brian J. Johnson <brian.johnson@hpe.com>
Tested-by: Kenneth Lautner <klautner@microsoft.com>
---
 .../Library/IntrinsicLib/Ia32/MathDivModU64x64.c   | 23 +++++++++++++++++++
 .../Library/IntrinsicLib/Ia32/MathDivS64x64.c      | 22 ++++++++++++++++++
 .../Library/IntrinsicLib/Ia32/MathDivU64x64.c      | 22 ++++++++++++++++++
 .../Library/IntrinsicLib/Ia32/MathModU64x64.c      | 26 ++++++++++++++++++++++
 CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf    |  5 ++++-
 5 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 CryptoPkg/Library/IntrinsicLib/Ia32/MathDivModU64x64.c
 create mode 100644 CryptoPkg/Library/IntrinsicLib/Ia32/MathDivS64x64.c
 create mode 100644 CryptoPkg/Library/IntrinsicLib/Ia32/MathDivU64x64.c
 create mode 100644 CryptoPkg/Library/IntrinsicLib/Ia32/MathModU64x64.c

(limited to 'CryptoPkg/Library')

diff --git a/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivModU64x64.c b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivModU64x64.c
new file mode 100644
index 0000000000..6c75a1ff1d
--- /dev/null
+++ b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivModU64x64.c
@@ -0,0 +1,23 @@
+/** @file
+  64-bit Math Worker Function.
+  The 32-bit versions of C compiler generate calls to library routines
+  to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+
+/* https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html */
+__attribute__ ((__used__))
+unsigned long long
+__udivmoddi4 (
+  unsigned long long  A,
+  unsigned long long  B,
+  unsigned long long  *C
+  )
+{
+  return DivU64x64Remainder ((UINT64)A, (UINT64)B, (UINT64 *)C);
+}
diff --git a/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivS64x64.c b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivS64x64.c
new file mode 100644
index 0000000000..54ff619b61
--- /dev/null
+++ b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivS64x64.c
@@ -0,0 +1,22 @@
+/** @file
+  64-bit Math Worker Function.
+  The 32-bit versions of C compiler generate calls to library routines
+  to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+
+/* https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html */
+__attribute__ ((__used__))
+long long
+__divdi3 (
+  long long  A,
+  long long  B
+  )
+{
+  return DivS64x64Remainder ((INT64)A, (INT64)B, NULL);
+}
diff --git a/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivU64x64.c b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivU64x64.c
new file mode 100644
index 0000000000..dbb7b516fb
--- /dev/null
+++ b/CryptoPkg/Library/IntrinsicLib/Ia32/MathDivU64x64.c
@@ -0,0 +1,22 @@
+/** @file
+  64-bit Math Worker Function.
+  The 32-bit versions of C compiler generate calls to library routines
+  to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+
+/* https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html */
+__attribute__ ((__used__))
+unsigned long long
+__udivdi3 (
+  unsigned long long  A,
+  unsigned long long  B
+  )
+{
+  return DivU64x64Remainder ((UINT64)A, (UINT64)B, NULL);
+}
diff --git a/CryptoPkg/Library/IntrinsicLib/Ia32/MathModU64x64.c b/CryptoPkg/Library/IntrinsicLib/Ia32/MathModU64x64.c
new file mode 100644
index 0000000000..eedd96074e
--- /dev/null
+++ b/CryptoPkg/Library/IntrinsicLib/Ia32/MathModU64x64.c
@@ -0,0 +1,26 @@
+/** @file
+  64-bit Math Worker Function.
+  The 32-bit versions of C compiler generate calls to library routines
+  to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+
+/* https://gcc.gnu.org/onlinedocs/gccint/Integer-library-routines.html */
+__attribute__ ((__used__))
+unsigned long long
+__umoddi3 (
+  unsigned long long  A,
+  unsigned long long  B
+  )
+{
+  unsigned long long  Reminder;
+
+  DivU64x64Remainder ((UINT64)A, (UINT64)B, (UINT64 *)&Reminder);
+
+  return Reminder;
+}
diff --git a/CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf b/CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
index 4d2440466d..ae238ccc0b 100644
--- a/CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
+++ b/CryptoPkg/Library/IntrinsicLib/IntrinsicLib.inf
@@ -43,7 +43,10 @@
 
   Ia32/MathLShiftS64.nasm   | GCC
   Ia32/MathRShiftU64.nasm   | GCC
-
+  Ia32/MathDivModU64x64.c   | GCC
+  Ia32/MathDivS64x64.c      | GCC
+  Ia32/MathDivU64x64.c      | GCC
+  Ia32/MathModU64x64.c      | GCC
 [Sources.X64]
   CopyMem.c
 [Sources.RISCV64]
-- 
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