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89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
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/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdeps/unix/powerpc/sysdep.h>
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/* This seems to always be the case on PPC. */
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#define ALIGNARG(log2) log2
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/* How to define local lables. */
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#define L(name) L..##name
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/* Label in text section. */
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#define C_TEXT(name) .##name
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/* Function descriptor. */
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#define FUNCDESC(real, code) \
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.toc; \
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.csect real##[DS], 3; \
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.globl real; \
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real: \
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.long code, TOC[tc0], 0;
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/* Code to generate function entry code. */
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#define ENTRY(name) \
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FUNCDESC (name, C_TEXT (name)) \
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.csect .text[PR], 2; \
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.globl C_TEXT (name); \
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C_TEXT (name):
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/* XXX For now we don't define any code. */
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#define CALL_MCOUNT
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#define EALIGN_W_0 /* No words to insert. */
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#define EALIGN_W_1 nop
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#define EALIGN_W_2 nop;nop
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#define EALIGN_W_3 nop;nop;nop
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#define EALIGN_W_4 EALIGN_W_3;nop
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#define EALIGN_W_5 EALIGN_W_4;nop
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#define EALIGN_W_6 EALIGN_W_5;nop
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#define EALIGN_W_7 EALIGN_W_6;nop
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/* EALIGN is like ENTRY, but does alignment to 'words'*4 bytes
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past a 2^align boundary. */
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#ifdef PROF
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#define EALIGN(name, alignt, words) \
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FUNCDESC (name, C_TEXT (name)) \
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.csect .text[PR], 2; \
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.align ALIGNARG(2); \
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.globl C_TEXT (name); \
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C_TEXT (name): \
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CALL_MCOUNT \
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b L(align_0); \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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L(align_0):
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#else /* PROF */
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#define EALIGN(name, alignt, words) \
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FUNCDESC (name, C_TEXT (name)) \
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.csect .text[PR], 2; \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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.globl C_TEXT (name); \
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C_TEXT (name):
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#endif
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/* No special end code for now. We will eventually add to usual prolog
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with function length etc. */
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#define END(name)
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/* Jumping to another function. We are jumping to the TOC entry. */
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#define JUMPTARGET(name) name
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