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

1 files changed, 146 insertions, 0 deletions

diff --git a/StdLib/Include/X64/machine/asm.h b/StdLib/Include/X64/machine/asm.h
new file mode 100644
index 0000000000..109d1e1879
--- /dev/null
+++ b/StdLib/Include/X64/machine/asm.h
@@ -0,0 +1,146 @@
+/*	$NetBSD: asm.h,v 1.6 2006/09/05 19:00:42 ad Exp $	*/

+

+/*-

+ * Copyright (c) 1990 The Regents of the University of California.

+ * All rights reserved.

+ *

+ * This code is derived from software contributed to Berkeley by

+ * William Jolitz.

+ *

+ * 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.

+ *

+ *	@(#)asm.h	5.5 (Berkeley) 5/7/91

+ */

+

+#ifndef _AMD64_ASM_H_

+#define _AMD64_ASM_H_

+

+#ifdef PIC

+#define PIC_PLT(x)	x@PLT

+#define PIC_GOT(x)	x@GOTPCREL(%rip)

+#else

+#define PIC_PLT(x)	x

+#define PIC_GOT(x)	x

+#endif

+

+# define _C_LABEL(x)	x

+#define	_ASM_LABEL(x)	x

+

+#define CVAROFF(x,y)		(_C_LABEL(x)+y)(%rip)

+

+#ifdef __STDC__

+# define __CONCAT(x,y)	x ## y

+# define __STRING(x)	#x

+#else

+# define __CONCAT(x,y)	x/**/y

+# define __STRING(x)	"x"

+#endif

+

+/* let kernels and others override entrypoint alignment */

+#ifndef _ALIGN_TEXT

+#define _ALIGN_TEXT .align 4

+#endif

+

+#define _ENTRY(x) \

+	.text; _ALIGN_TEXT; .globl x; .type x,@function; x:

+

+#ifdef _KERNEL

+/* XXX Can't use __CONCAT() here, as it would be evaluated incorrectly. */

+#ifdef __STDC__

+#define	IDTVEC(name) \

+	ALIGN_TEXT; .globl X ## name; .type X ## name,@function; X ## name:

+#else 

+#define	IDTVEC(name) \

+	ALIGN_TEXT; .globl X/**/name; .type X/**/name,@function; X/**/name:

+#endif /* __STDC__ */ 

+#endif /* _KERNEL */

+

+#ifdef __STDC__

+#define CPUVAR(off)	%gs:CPU_INFO_ ## off

+#else

+#define CPUVAR(off)     %gs:CPU_INFO_/**/off

+#endif

+

+

+#ifdef GPROF

+# define _PROF_PROLOGUE	\

+	pushq %rbp; leaq (%rsp),%rbp; call PIC_PLT(__mcount); popq %rbp

+#else

+# define _PROF_PROLOGUE

+#endif

+

+#define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE

+#define	NENTRY(y)	_ENTRY(_C_LABEL(y))

+#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE

+

+#define	ASMSTR		.asciz

+

+#define RCSID(x)	.text; .asciz x

+

+#define	WEAK_ALIAS(alias,sym)						\

+	.weak alias;							\

+	alias = sym

+

+/*

+ * STRONG_ALIAS: create a strong alias.

+ */

+#define STRONG_ALIAS(alias,sym)						\

+	.globl alias;							\

+	alias = sym

+

+/* XXXfvdl do not use stabs here */

+#ifdef __STDC__

+#define	WARN_REFERENCES(sym,msg)					\

+	.stabs msg ## ,30,0,0,0 ;					\

+	.stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0

+#else

+#define	WARN_REFERENCES(sym,msg)					\

+	.stabs msg,30,0,0,0 ;						\

+	.stabs __STRING(sym),1,0,0,0

+#endif /* __STDC__ */

+

+/*

+ * Assembley equivalent of spllower().  Label contains the label to jump to

+ * if we need to fire off pending interrupts (e.g. _C_LABEL(Xspllower)).

+ *

+ * On entry %rcx = new SPL.

+ */

+#define	SPLLOWER(label)						\

+	movq		CPUVAR(SELF), %r9 ;			\

+	cmpl		CPU_INFO_ILEVEL(%r9), %ecx ;		\

+	jae		99f ;					\

+	movl		CPU_INFO_IUNMASK(%r9,%rcx,4), %edi ;	\

+	pushfq		;					\

+	popq		%rax ;					\

+	cli		;					\

+	testl		CPU_INFO_IPENDING(%r9), %edi ;		\

+	movq		%rcx, %rdi ;				\

+	jnz		label ;					\

+	movl		%ecx, CPU_INFO_ILEVEL(%r9) ;		\

+	pushq		%rax ;					\

+	popfq		;					\

+99:

+

+#endif /* !_AMD64_ASM_H_ */