text: /* Copyright (C) 2011-2017 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
  
     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, see
     <http://www.gnu.org/licenses/>.  */
  
  #include <sysdeps/generic/sysdep.h>
  #include <bits/wordsize.h>
  #include <arch/abi.h>
  
  #if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
  
  #include <feedback.h>
  
  /* Make use of .size directive.  */
  #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
  
  /* Define an entry point visible from C.  */
  #define	ENTRY(name)							      \
    .globl C_SYMBOL_NAME(name);						      \
    .type C_SYMBOL_NAME(name),@function;					      \
    .align 8;								      \
    C_LABEL(name)								      \
    cfi_startproc;							      \
    CALL_MCOUNT
  
  #undef	END
  #define END(name)							      \
    cfi_endproc;								      \
    ASM_SIZE_DIRECTIVE(name)
  
  /* Since C identifiers are not normally prefixed with an underscore
     on this system, the asm identifier `syscall_error' intrudes on the
     C name space.  Make sure we use an innocuous name.  */
  #define	syscall_error	__syscall_error
  #define mcount		__mcount
  
  /* If compiled for profiling, call `mcount' at the start of each function.
     The mcount code requires the caller PC in r10.  The `mcount' function
     sets lr back to the value r10 had on entry when it returns.  */
  #ifdef	PROF
  #define CALL_MCOUNT { move r10, lr; jal mcount }
  #else
  #define CALL_MCOUNT             /* Do nothing.  */
  #endif
  
  /* Local label name for asm code. */
  #define L(name)		.L##name
  
  /* Specify the size in bytes of a machine register.  */
  #ifdef __tilegx__
  #define REGSIZE		8
  #else
  #define REGSIZE		4
  #endif
  
  /* Support a limited form of shared assembly between tilepro and tilegx.
     The presumption is that LD/ST are used for manipulating registers.
     Since opcode parsing is case-insensitive, we don't need to provide
     definitions for these on tilegx.  */
  #ifndef __tilegx__
  #define LD		lw
  #define LD4U		lw
  #define ST		sw
  #define ST4		sw
  #define BNEZ		bnz
  #define BEQZ		bz
  #define BEQZT		bzt
  #define BGTZ		bgz
  #define CMPEQI		seqi
  #define CMPEQ		seq
  #define CMOVEQZ		mvz
  #define CMOVNEZ		mvnz
  #endif
  
  /* Provide "pointer-oriented" instruction variants.  These differ not
     just for tilepro vs tilegx, but also for tilegx -m64 vs -m32.  */
  #if defined __tilegx__ && __WORDSIZE == 32
  #define ADD_PTR		addx
  #define ADDI_PTR	addxi
  #define ADDLI_PTR	addxli
  #define LD_PTR		ld4s
  #define ST_PTR		st4
  #define SHL_PTR_ADD	shl2add
  #else
  #define ADD_PTR		add
  #define ADDI_PTR	addi
  #define ADDLI_PTR	addli
  #define LD_PTR		LD
  #define ST_PTR		ST
  #ifdef __tilegx__
  #define SHL_PTR_ADD	shl3add
  #else
  #define SHL_PTR_ADD	s2a
  #endif
  #endif
  
  #endif /* __ASSEMBLER__ */
  