diff options
Diffstat (limited to 'ports/sysdeps/microblaze/sysdep.h')
-rw-r--r-- | ports/sysdeps/microblaze/sysdep.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/ports/sysdeps/microblaze/sysdep.h b/ports/sysdeps/microblaze/sysdep.h new file mode 100644 index 0000000000..4fe460735d --- /dev/null +++ b/ports/sysdeps/microblaze/sysdep.h @@ -0,0 +1,85 @@ +/* Copyright (C) 1997-2012 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + 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> + +#ifdef __ASSEMBLER__ + +/* Syntactic details of assembler. */ + +# define ALIGNARG(log2) log2 +# 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 ALIGNARG(2); \ + C_LABEL(name) \ + CALL_MCOUNT + +# undef END +# define END(name) ASM_SIZE_DIRECTIVE(name) + + +/* If compiled for profiling, call `_mcount' at the start of each function. */ +# ifdef PROF +/* The mcount code relies on a normal frame pointer being on the stack + to locate our caller, so push one just for its benefit. */ +# define CALL_MCOUNT \ + addik r1,r1,-4; \ + swi r15,r1,0; \ + brlid r15,JUMPTARGET(mcount); \ + nop; \ + lwi r15,r1,0; \ + addik r1,r1,4; +# else +# define CALL_MCOUNT /* Do nothing. */ +# endif + +/* 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 + +# define PSEUDO(name, syscall_name, args) \ + .globl syscall_error; \ + ENTRY (name) \ + DO_CALL (syscall_name, args); + +# define ret \ + rtsd r15,8; nop; + +# undef PSEUDO_END +# define PSEUDO_END(name) \ + END (name) + +# undef JUMPTARGET +# ifdef PIC +# define JUMPTARGET(name) name##@PLTPC +# else +# define JUMPTARGET(name) name +# endif + +/* Local label name for asm code. */ +# ifndef L +# define L(name) $L##name +# endif + +# endif /* __ASSEMBLER__ */ |