[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/string/ia64/sysdep.h b/ap/build/uClibc/libc/string/ia64/sysdep.h
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+/* Copyright (C) 1999, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
+ Based on code originally written by David Mosberger-Tang
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _LINUX_IA64_SYSDEP_H
+#define _LINUX_IA64_SYSDEP_H 1
+
+#include <features.h>
+#include <asm/unistd.h>
+
+#ifdef __ASSEMBLER__
+
+/* Macros to help writing .prologue directives in assembly code. */
+#define ASM_UNW_PRLG_RP 0x8
+#define ASM_UNW_PRLG_PFS 0x4
+#define ASM_UNW_PRLG_PSP 0x2
+#define ASM_UNW_PRLG_PR 0x1
+#define ASM_UNW_PRLG_GRSAVE(ninputs) (32+(ninputs))
+
+#ifdef __STDC__
+#define C_LABEL(name) name :
+#else
+#define C_LABEL(name) name/**/:
+#endif
+
+#define CALL_MCOUNT
+
+#define ENTRY(name) \
+ .text; \
+ .align 32; \
+ .proc C_SYMBOL_NAME(name); \
+ .global C_SYMBOL_NAME(name); \
+ C_LABEL(name) \
+ CALL_MCOUNT
+
+#define LEAF(name) \
+ .text; \
+ .align 32; \
+ .proc C_SYMBOL_NAME(name); \
+ .global name; \
+ C_LABEL(name)
+
+/* Mark the end of function SYM. */
+#undef END
+#define END(sym) .endp C_SYMBOL_NAME(sym)
+
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#ifdef __STDC__
+# define SYS_ify(syscall_name) __NR_##syscall_name
+#else
+# define SYS_ify(syscall_name) __NR_/**/syscall_name
+#endif
+
+/* Linux uses a negative return value to indicate syscall errors, unlike
+ most Unices, which use the condition codes' carry flag.
+
+ Since version 2.1 the return value of a system call might be negative
+ even if the call succeeded. E.g., the `lseek' system call might return
+ a large offset. Therefore we must not anymore test for < 0, but test
+ for a real error by making sure the value in %d0 is a real error
+ number. Linus said he will make sure the no syscall returns a value
+ in -1 .. -4095 as a valid result so we can savely test with -4095. */
+
+/* We don't want the label for the error handler to be visible in the symbol
+ table when we define it here. */
+#define SYSCALL_ERROR_LABEL __syscall_error
+
+#undef PSEUDO
+#define PSEUDO(name, syscall_name, args) \
+ ENTRY(name) \
+ DO_CALL (SYS_ify(syscall_name)); \
+ cmp.eq p6,p0=-1,r10; \
+(p6) br.cond.spnt.few __syscall_error;
+
+#define DO_CALL_VIA_BREAK(num) \
+ mov r15=num; \
+ break __BREAK_SYSCALL
+
+#ifdef IA64_USE_NEW_STUB
+# ifdef SHARED
+# define DO_CALL(num) \
+ .prologue; \
+ adds r2 = SYSINFO_OFFSET, r13;; \
+ ld8 r2 = [r2]; \
+ .save ar.pfs, r11; \
+ mov r11 = ar.pfs;; \
+ .body; \
+ mov r15 = num; \
+ mov b7 = r2; \
+ br.call.sptk.many b6 = b7;; \
+ .restore sp; \
+ mov ar.pfs = r11; \
+ .prologue; \
+ .body
+# else /* !SHARED */
+# define DO_CALL(num) \
+ .prologue; \
+ mov r15 = num; \
+ movl r2 = _dl_sysinfo;; \
+ ld8 r2 = [r2]; \
+ .save ar.pfs, r11; \
+ mov r11 = ar.pfs;; \
+ .body; \
+ mov b7 = r2; \
+ br.call.sptk.many b6 = b7;; \
+ .restore sp; \
+ mov ar.pfs = r11; \
+ .prologue; \
+ .body
+# endif
+#else
+# define DO_CALL(num) DO_CALL_VIA_BREAK(num)
+#endif
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) .endp C_SYMBOL_NAME(name);
+
+#undef PSEUDO_NOERRNO
+#define PSEUDO_NOERRNO(name, syscall_name, args) \
+ ENTRY(name) \
+ DO_CALL (SYS_ify(syscall_name));
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name) .endp C_SYMBOL_NAME(name);
+
+#undef PSEUDO_ERRVAL
+#define PSEUDO_ERRVAL(name, syscall_name, args) \
+ ENTRY(name) \
+ DO_CALL (SYS_ify(syscall_name)); \
+ cmp.eq p6,p0=-1,r10; \
+(p6) mov r10=r8;
+
+
+#undef PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name) .endp C_SYMBOL_NAME(name);
+
+#undef END
+#define END(name) \
+ .size C_SYMBOL_NAME(name), . - C_SYMBOL_NAME(name) ; \
+ .endp C_SYMBOL_NAME(name)
+
+#define ret br.ret.sptk.few b0
+#define ret_NOERRNO ret
+#define ret_ERRVAL ret
+
+#endif /* not __ASSEMBLER__ */
+
+#endif /* linux/ia64/sysdep.h */