Standard Libraries for EDK II.

This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc.

AppPkg contains applications that make use of the standard libraries defined in the StdLib Package.

StdLib contains header (include) files and the implementations of the standard libraries.

StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib.  These files should never be directly referenced from applications or other code.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 188 insertions, 0 deletions

diff --git a/StdLib/LibC/Main/X64/fpu_rmode.S b/StdLib/LibC/Main/X64/fpu_rmode.S
new file mode 100644
index 0000000000..4999102582
--- /dev/null
+++ b/StdLib/LibC/Main/X64/fpu_rmode.S
@@ -0,0 +1,20 @@
+#------------------------------------------------------------------------------

+#

+# Copyright (c) 2010, 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

+# 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.

+#

+#------------------------------------------------------------------------------

+

+ASM_GLOBAL ASM_PFX(internal_FPU_rmode)

+ASM_PFX(internal_FPU_rmode):

+  fnstcw -4(%rsp)

+  movl -4(%rsp),%eax

+  shrl $10,%eax

+  andl $3,%eax

+  ret

diff --git a/StdLib/LibC/Main/X64/fpu_rmode.asm b/StdLib/LibC/Main/X64/fpu_rmode.asm
new file mode 100644
index 0000000000..36b0d11ccd
--- /dev/null
+++ b/StdLib/LibC/Main/X64/fpu_rmode.asm
@@ -0,0 +1,41 @@
+;------------------------------------------------------------------------------

+; Return the current FPU rounding mode.

+;

+; MASM implementation of the flt_rounds function from NetBSD.

+;

+; Copyright (c) 2010, 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

+; 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.

+;

+;------------------------------------------------------------------------------

+

+    .code

+

+;_map  BYTE  1     ; round to nearest

+;      BYTE  3     ; round to negative infinity

+;      BYTE  2     ; round to positive infinity

+;      BYTE  0     ; round to zero

+

+;------------------------------------------------------------------------------

+; int

+; EFIAPI

+; fpu_rmode( void );

+;

+; VC++ always creates space for 4 parameters on the stack, whether they are

+; used or not.  We use one for temporary storage since the only variant of

+; fnstcw saves to memory, NOT a register.

+;------------------------------------------------------------------------------

+internal_FPU_rmode    PROC

+    fnstcw    [rsp + 8]       ; save 16-bit FPU Control Word

+    mov       eax, [rsp + 8]  ; get the saved FPU Control Word

+    shr       eax, 10

+    and       rax, 3          ; index is only the LSB two bits in RAX

+    ret                       ; Return rounding mode in RAX

+internal_FPU_rmode    ENDP

+

+    END

diff --git a/StdLib/LibC/Main/X64/isinfl.c b/StdLib/LibC/Main/X64/isinfl.c
new file mode 100644
index 0000000000..d50577ffd1
--- /dev/null
+++ b/StdLib/LibC/Main/X64/isinfl.c
@@ -0,0 +1,63 @@
+/*  $NetBSD: isinfl.c,v 1.5.16.1 2007/05/07 19:49:08 pavel Exp $  */

+

+/*

+ * Copyright (c) 1992, 1993

+ *  The Regents of the University of California.  All rights reserved.

+ *

+ * This software was developed by the Computer Systems Engineering group

+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and

+ * contributed to Berkeley.

+ *

+ * 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: Header: isinf.c,v 1.1 91/07/08 19:03:34 torek Exp

+ */

+

+#include <sys/EfiCdefs.h>

+#if defined(LIBC_SCCS) && !defined(lint)

+#if 0

+static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93";

+#else

+__RCSID("$NetBSD: isinfl.c,v 1.5.16.1 2007/05/07 19:49:08 pavel Exp $");

+#endif

+#endif /* LIBC_SCCS and not lint */

+

+#include <machine/ieee.h>

+#include <math.h>

+

+/*

+ * 7.12.3.3 isinf - test for infinity

+ *          IEEE 754 compatible 80-bit extended-precision Intel 386 version

+ */

+int

+__isinfl(long double x)

+{

+  union ieee_ext_u u = {0.0};

+

+  u.extu_ld = x;

+

+  return (u.extu_ext.ext_exp == EXT_EXP_INFNAN &&

+       u.extu_ext.ext_frach == 0x80000000 && u.extu_ext.ext_fracl == 0);

+}

diff --git a/StdLib/LibC/Main/X64/isnanl.c b/StdLib/LibC/Main/X64/isnanl.c
new file mode 100644
index 0000000000..148d674577
--- /dev/null
+++ b/StdLib/LibC/Main/X64/isnanl.c
@@ -0,0 +1,64 @@
+/*  $NetBSD: isnanl.c,v 1.5.16.1 2007/05/07 19:49:07 pavel Exp $  */

+

+/*

+ * Copyright (c) 1992, 1993

+ *  The Regents of the University of California.  All rights reserved.

+ *

+ * This software was developed by the Computer Systems Engineering group

+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and

+ * contributed to Berkeley.

+ *

+ * 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: Header: isinf.c,v 1.1 91/07/08 19:03:34 torek Exp

+ */

+

+#include <sys/EfiCdefs.h>

+#if defined(LIBC_SCCS) && !defined(lint)

+#if 0

+static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93";

+#else

+__RCSID("$NetBSD: isnanl.c,v 1.5.16.1 2007/05/07 19:49:07 pavel Exp $");

+#endif

+#endif /* LIBC_SCCS and not lint */

+

+#include <machine/ieee.h>

+#include <math.h>

+

+/*

+ * 7.12.3.4 isnan - test for a NaN

+ *          IEEE 754 compatible 80-bit extended-precision Intel 386 version

+ */

+int

+__isnanl(long double x)

+{

+  union ieee_ext_u u = { 0 };

+

+  u.extu_ld = x;

+

+  return (u.extu_ext.ext_exp == EXT_EXP_INFNAN &&

+      (u.extu_ext.ext_frach & 0x80000000) != 0 &&

+      (u.extu_ext.ext_frach != 0x80000000 || u.extu_ext.ext_fracl != 0));

+}