Re: [edk2-devel] [PATCH] BaseTools: Add RISCV64 binding

["Abner Chang" <abner.chang@hpe.com>]

Acked-by: Abner Chang <abner.chang@hpe.com>

> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of
> Nikita
> Sent: Tuesday, September 22, 2020 6:38 PM
> To: devel@edk2.groups.io
> Cc: Nikita Ermakov <sh1r4s3@mail.si-head.nl>
> Subject: [edk2-devel] [PATCH] BaseTools: Add RISCV64 binding
> 
> - Add RISCV64 ProcessorBind.h
> 
> - Add RISCV64 to Makefiles
> 
> Signed-off-by: Nikita Ermakov <sh1r4s3@mail.si-head.nl>
> ---
>  BaseTools/Source/C/GNUmakefile                |  3 +
>  .../Source/C/Include/RiscV64/ProcessorBind.h  | 85 +++++++++++++++++++
> BaseTools/Source/C/Makefiles/header.makefile  |  6 ++
>  3 files changed, 94 insertions(+)
>  create mode 100644 BaseTools/Source/C/Include/RiscV64/ProcessorBind.h
> 
> diff --git a/BaseTools/Source/C/GNUmakefile
> b/BaseTools/Source/C/GNUmakefile index df4eb64ea9..464f432774 100644
> --- a/BaseTools/Source/C/GNUmakefile
> +++ b/BaseTools/Source/C/GNUmakefile
> @@ -26,6 +26,9 @@ ifndef HOST_ARCH
>    else ifneq (,$(findstring arm,$(uname_m)))
>      HOST_ARCH=ARM
>    endif
> +  ifneq (,$(findstring riscv64,$(uname_m)))
> +    HOST_ARCH=RISCV64
> +  endif
>    ifndef HOST_ARCH
>      $(info Could not detected HOST_ARCH from uname results)
>      $(error HOST_ARCH is not defined!)
> diff --git a/BaseTools/Source/C/Include/RiscV64/ProcessorBind.h
> b/BaseTools/Source/C/Include/RiscV64/ProcessorBind.h
> new file mode 100644
> index 0000000000..1612d6ea7f
> --- /dev/null
> +++ b/BaseTools/Source/C/Include/RiscV64/ProcessorBind.h
> @@ -0,0 +1,85 @@
> +/** @file
> +  Processor or Compiler specific defines and types for RISC-V.
> +
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef __PROCESSOR_BIND_H__
> +#define __PROCESSOR_BIND_H__
> +
> +//
> +// Define the processor type so other code can make processor based
> +choices // #define MDE_CPU_RISCV64
> +
> +//
> +// Make sure we are using the correct packing rules per EFI
> +specification // #ifndef __GNUC__ #pragma pack() #endif
> +
> +//
> +// Use ANSI C 2000 stdint.h integer width declarations // #include
> +<stdint.h>
> +typedef uint8_t   BOOLEAN;
> +typedef int8_t    INT8;
> +typedef uint8_t   UINT8;
> +typedef int16_t   INT16;
> +typedef uint16_t  UINT16;
> +typedef int32_t   INT32;
> +typedef uint32_t  UINT32;
> +typedef int64_t   INT64;
> +typedef uint64_t  UINT64;
> +typedef char      CHAR8;
> +typedef uint16_t  CHAR16;
> +
> +//
> +// Unsigned value of native width.  (4 bytes on supported 32-bit
> +processor instructions, // 8 bytes on supported 64-bit processor
> +instructions) // typedef UINT64  UINTN;
> +
> +//
> +// Signed value of native width.  (4 bytes on supported 32-bit
> +processor instructions, // 8 bytes on supported 64-bit processor
> +instructions) //
> +typedef INT64   INTN;
> +
> +//
> +// Processor specific defines
> +//
> +
> +//
> +// A value of native width with the highest bit set.
> +//
> +#define MAX_BIT      0x8000000000000000
> +
> +//
> +// A value of native width with the two highest bits set.
> +//
> +#define MAX_2_BITS   0xC000000000000000
> +
> +//
> +// The stack alignment required for RISC-V // #define
> +CPU_STACK_ALIGNMENT  16
> +
> +//
> +// Modifier to ensure that all protocol member functions and EFI
> +intrinsics // use the correct C calling convention. All protocol member
> +functions and // EFI intrinsics are required to modify their member
> functions with EFIAPI.
> +//
> +#define EFIAPI
> +
> +#if defined(__GNUC__)
> +  //
> +  // For GNU assembly code, .global or .globl can declare global symbols.
> +  // Define this macro to unify the usage.
> +  //
> +  #define ASM_GLOBAL .globl
> +#endif
> +
> +#endif
> diff --git a/BaseTools/Source/C/Makefiles/header.makefile
> b/BaseTools/Source/C/Makefiles/header.makefile
> index 1c105ee7d4..0df728f327 100644
> --- a/BaseTools/Source/C/Makefiles/header.makefile
> +++ b/BaseTools/Source/C/Makefiles/header.makefile
> @@ -28,6 +28,9 @@ ifndef HOST_ARCH
>    else ifneq (,$(findstring arm,$(uname_m)))
>      HOST_ARCH=ARM
>    endif
> +  ifneq (,$(findstring riscv64,$(uname_m)))
> +    HOST_ARCH=RISCV64
> +  endif
>    ifndef HOST_ARCH
>      $(info Could not detected HOST_ARCH from uname results)
>      $(error HOST_ARCH is not defined!)
> @@ -64,6 +67,9 @@ ARCH_INCLUDE = -I $(MAKEROOT)/Include/Arm/  else
> ifeq ($(HOST_ARCH), AARCH64)  ARCH_INCLUDE = -I
> $(MAKEROOT)/Include/AArch64/
> 
> +else ifeq ($(HOST_ARCH), RISCV64)
> +ARCH_INCLUDE = -I $(MAKEROOT)/Include/RiscV64/
> +
>  else
>  $(error Bad HOST_ARCH)
>  endif
> --
> 2.28.0
> 
> 
> 
> 
>