| /* Assembler macros for m68k. |
| Copyright (C) 1998-2016 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__ |
| |
| /* Define an entry point visible from C. |
| |
| There is currently a bug in gdb which prevents us from specifying |
| incomplete stabs information. Fake some entries here which specify |
| the current source file. */ |
| # define ENTRY(name) \ |
| .globl C_SYMBOL_NAME(name); \ |
| .type C_SYMBOL_NAME(name),@function; \ |
| .p2align 2; \ |
| C_LABEL(name) \ |
| cfi_startproc; \ |
| CALL_MCOUNT |
| |
| # undef END |
| # define END(name) \ |
| cfi_endproc; \ |
| .size name,.-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 \ |
| move.l %fp, -(%sp); \ |
| cfi_adjust_cfa_offset (4); cfi_rel_offset (%a6, 0); \ |
| move.l %sp, %fp; \ |
| jbsr JUMPTARGET (_mcount); \ |
| move.l (%sp)+, %fp; \ |
| cfi_adjust_cfa_offset (-4); cfi_restore (%a6); |
| # else |
| # define CALL_MCOUNT /* Do nothing. */ |
| # endif |
| |
| # define PSEUDO(name, syscall_name, args) \ |
| .globl __syscall_error; \ |
| ENTRY (name) \ |
| DO_CALL (syscall_name, args); \ |
| jcc JUMPTARGET(__syscall_error) |
| |
| # undef PSEUDO_END |
| # define PSEUDO_END(name) \ |
| END (name) |
| |
| # undef JUMPTARGET |
| # ifdef PIC |
| # define JUMPTARGET(name) name##@PLTPC |
| # else |
| # define JUMPTARGET(name) name |
| # endif |
| |
| #endif /* __ASSEMBLER__ */ |