| /* Copyright (C) 1997-2014 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__ */ |
