edk2-libc: Add LoongArch64 support.

REF: https://github.com/bminor/glibc
https://github.com/loongson/glibc

Signed-off-by: Dongyan Qian <[email protected]>

AppPkg/AppPkg.dsc

@@ -17,7 +17,7 @@
   PLATFORM_VERSION               = 0.01
   DSC_SPECIFICATION              = 0x00010006
   OUTPUT_DIRECTORY               = Build/AppPkg
-  SUPPORTED_ARCHITECTURES        = IA32|X64|ARM|AARCH64
+  SUPPORTED_ARCHITECTURES        = IA32|X64|ARM|AARCH64|LOONGARCH64
   BUILD_TARGETS                  = DEBUG|RELEASE|NOOPT
   SKUID_IDENTIFIER               = DEFAULT
 

StdLib/Include/LoongArch64/loongarch-gcc.h

@@ -0,0 +1,104 @@
+/** @file
+
+  Copyright (c) 2014, ARM Limited. All rights reserved.
+  Modified by Loongson Technology Co., Ltd. on 2024.
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+/* $NetBSD: arm-gcc.h,v 1.4 2013/01/26 07:08:14 matt Exp $ */
+
+/*
+-------------------------------------------------------------------------------
+One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
+-------------------------------------------------------------------------------
+*/
+#define LITTLEENDIAN
+
+/*
+-------------------------------------------------------------------------------
+The macro `BITS64' can be defined to indicate that 64-bit integer types are
+supported by the compiler.
+-------------------------------------------------------------------------------
+*/
+#define BITS64
+
+/*
+-------------------------------------------------------------------------------
+Each of the following `typedef's defines the most convenient type that holds
+integers of at least as many bits as specified.  For example, `uint8' should
+be the most convenient type that can hold unsigned integers of as many as
+8 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
+implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
+to the same as `int'.
+-------------------------------------------------------------------------------
+*/
+typedef int flag;
+typedef int uint8;
+typedef int int8;
+typedef int uint16;
+typedef int int16;
+typedef unsigned int uint32;
+typedef signed int int32;
+#ifdef BITS64
+typedef unsigned long long int uint64;
+typedef signed long long int int64;
+#endif
+
+/*
+-------------------------------------------------------------------------------
+Each of the following `typedef's defines a type that holds integers
+of _exactly_ the number of bits specified.  For instance, for most
+implementation of C, `bits16' and `sbits16' should be `typedef'ed to
+`unsigned short int' and `signed short int' (or `short int'), respectively.
+-------------------------------------------------------------------------------
+*/
+typedef unsigned char bits8;
+typedef signed char sbits8;
+typedef unsigned short int bits16;
+typedef signed short int sbits16;
+typedef unsigned int bits32;
+typedef signed int sbits32;
+#ifdef BITS64
+typedef unsigned long long int bits64;
+typedef signed long long int sbits64;
+#endif
+
+#ifdef BITS64
+/*
+-------------------------------------------------------------------------------
+The `LIT64' macro takes as its argument a textual integer literal and
+if necessary ``marks'' the literal as having a 64-bit integer type.
+For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
+appended with the letters `LL' standing for `long long', which is `gcc's
+name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
+defined as the identity macro:  `#define LIT64( a ) a'.
+-------------------------------------------------------------------------------
+*/
+#define LIT64( a ) a##ULL
+#endif
+
+/*
+-------------------------------------------------------------------------------
+The macro `INLINE' can be used before functions that should be inlined.  If
+a compiler does not support explicit inlining, this macro should be defined
+to be `static'.
+-------------------------------------------------------------------------------
+*/
+#define INLINE static inline
+
+/* Modified by Loongson Technology Co., Ltd. on [2024]:\
+ * Changed the endianness detection for new architecture */
+
+#if defined(SOFTFLOAT_FOR_GCC)
+#define FLOAT64_DEMANGLE(a) (a)
+#define FLOAT64_MANGLE(a)   (a)
+#endif

StdLib/Include/LoongArch64/machine/ansi.h

@@ -0,0 +1,106 @@
+/** @file
+    Machine dependent ANSI type definitions.
+
+    Copyright (c) 2010-2012, Intel Corporation. All rights reserved.<BR>
+    This program and the accompanying materials are licensed and made available
+    under the terms and conditions of the BSD License that accompanies this
+    distribution.  The full text of the license may be found at
+    http://opensource.org/licenses/bsd-license.php.
+
+    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ * Copyright (c) 1990, 1993
+ *  The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *  from: @(#)ansi.h  8.2 (Berkeley) 1/4/94
+    NetBSD: ansi.h,v 1.7 2006/10/04 13:51:59 tnozaki Exp
+**/
+#ifndef _ANSI_H_
+#define _ANSI_H_
+
+#include <sys/EfiCdefs.h>
+
+#include <machine/int_types.h>
+
+/*
+ * Types which are fundamental to the implementation and may appear in
+ * more than one standard header are defined here.  Standard headers
+ * then use:
+ *  #ifdef  _BSD_SIZE_T_
+ *  typedef _BSD_SIZE_T_ size_t;
+ *  #undef  _BSD_SIZE_T_
+ *  #endif
+ */
+#define _BSD_CLOCK_T_     _EFI_CLOCK_T      /* clock() */
+#define _BSD_PTRDIFF_T_   _EFI_PTRDIFF_T_   /* ptr1 - ptr2 */
+#define _BSD_SIZE_T_      _EFI_SIZE_T_      /* sizeof() */
+#define _BSD_SSIZE_T_     INTN              /* byte count or error */
+#define _BSD_TIME_T_      _EFI_TIME_T       /* time() */
+#define _BSD_VA_LIST_     VA_LIST
+#define _BSD_CLOCKID_T_   INT64             /* clockid_t */
+#define _BSD_TIMER_T_     INT64             /* timer_t */
+#define _BSD_SUSECONDS_T_ INT64             /* suseconds_t */
+#define _BSD_USECONDS_T_  UINT64            /* useconds_t */
+
+/*
+ * NOTE: rune_t is not covered by ANSI nor other standards, and should not
+ * be instantiated outside of lib/libc/locale.  use wchar_t.
+ *
+ * Runes (wchar_t) is declared to be an ``int'' instead of the more natural
+ * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+ * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+ * it looks like 10646 will be a 31 bit standard.  This means that if your
+ * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+ * chosen over a long is that the is*() and to*() routines take ints (says
+ * ANSI C), but they use _RUNE_T_ instead of int.  By changing it here, you
+ * lose a bit of ANSI conformance, but your programs will still work.
+ *
+ * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.  When wchar_t
+ * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains
+ * defined for ctype.h.
+ */
+#define _BSD_WCHAR_T_       _EFI_WCHAR_T    /* wchar_t */
+#define _BSD_WINT_T_        _EFI_WINT_T     /* wint_t */
+#define _BSD_RUNE_T_        _EFI_WCHAR_T    /* rune_t */
+#define _BSD_WCTRANS_T_     void *          /* wctrans_t */
+#define _BSD_WCTYPE_T_      unsigned int    /* wctype_t */
+
+/*
+ * mbstate_t is an opaque object to keep conversion state, during multibyte
+ * stream conversions.  The content must not be referenced by user programs.
+ */
+typedef struct {
+  UINT32  A;      // Np;
+  UINT32  B;      // U;
+  UINT32  E;      // L
+  UINT8   C[4];   // n[4]
+  UINT16  D[2];   // w[2]
+} __mbstate_t;
+#define _BSD_MBSTATE_T_   __mbstate_t /* mbstate_t */
+
+#endif  /* _ANSI_H_ */

StdLib/Include/LoongArch64/machine/bswap.h

@@ -0,0 +1,13 @@
+/*      $NetBSD: bswap.h,v 1.4 2006/01/31 07:49:18 dsl Exp $      */
+
+/* Written by Manuel Bouyer. Public domain */
+
+#ifndef _MACHINE_BSWAP_H_
+#define _MACHINE_BSWAP_H_
+
+#include <machine/byte_swap.h>
+
+#define __BSWAP_RENAME
+#include <sys/bswap.h>
+
+#endif /* !_MACHINE_BSWAP_H_ */

StdLib/Include/LoongArch64/machine/byte_swap.h

@@ -0,0 +1,65 @@
+/*-
+ * Copyright (c) 1997, 1999, 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum, Neil A. Carson, and Jason R. Thorpe.
+ *
+ * Modified by Loongson Technology Co., Ltd. on 2024/12/08.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LOONGARCH64_BYTE_SWAP_H_
+#define _LOONGARCH64_BYTE_SWAP_H_
+
+#ifdef __GNUC__
+#include <sys/types.h>
+__BEGIN_DECLS
+
+#define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable
+static __inline uint32_t
+__byte_swap_u32_variable(uint32_t v)
+{
+        uint32_t t1;
+
+        t1 = v ^ ((v << 16) | (v >> 16));
+        t1 &= 0xff00ffffU;
+        v = (v >> 8) | (v << 24);
+        v ^= (t1 >> 8);
+        return (v);
+}
+
+#define __BYTE_SWAP_U16_VARIABLE __byte_swap_u16_variable
+static __inline uint16_t
+__byte_swap_u16_variable(uint16_t v)
+{
+
+        v &= 0xffff;
+        v = (v >> 8) | (v << 8);
+        return (v);
+}
+
+__END_DECLS
+#endif
+
+#endif /* _LOONGARCH64_BYTE_SWAP_H_ */

StdLib/Include/LoongArch64/machine/endian.h

@@ -0,0 +1,3 @@
+/*      $NetBSD: endian.h,v 1.3 2001/06/23 12:20:27 bjh21 Exp $ */
+
+#include <sys/endian.h>

StdLib/Include/LoongArch64/machine/endian_machdep.h

@@ -0,0 +1,3 @@
+/* $NetBSD: endian_machdep.h,v 1.8 2006/01/30 21:52:38 dsl Exp $ */
+
+#define _BYTE_ORDER _LITTLE_ENDIAN

StdLib/Include/LoongArch64/machine/fenv.h

@@ -0,0 +1,29 @@
+/*  $NetBSD: fenv.h,v 1.2 2014/01/29 00:22:09 matt Exp $    */
+
+/*
+ * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
+ * Public domain.
+ *
+ * Modified by Loongson Technology Co., Ltd. on 2024/12/08.
+ *
+ */
+
+#ifndef _LOONGARCH64_FENV_H_
+#define _LOONGARCH64_FENV_H_
+
+typedef int fexcept_t;
+
+#define FE_INVALID      0x01    /* invalid operation exception */
+#define FE_DIVBYZERO    0x02    /* divide-by-zero exception */
+#define FE_OVERFLOW     0x04    /* overflow exception */
+#define FE_UNDERFLOW    0x08    /* underflow exception */
+#define FE_INEXACT      0x10    /* imprecise (loss of precision; "inexact") */
+
+#define FE_ALL_EXCEPT   0x1f
+
+#define FE_TONEAREST    0   /* round to nearest representable number */
+#define FE_UPWARD       1   /* round toward positive infinity */
+#define FE_DOWNWARD     2   /* round toward negative infinity */
+#define FE_TOWARDZERO   3   /* round to zero (truncate) */
+
+#endif /* _LOONGARCH64_FENV_H_ */